Encrypt Word with Custom Password in C#, VB.NET
Word encryption, one method to protect Word document, requires users to give the document a password. Without the password, encrypted document cannot be opened. Solution in this guide demonstrates how to encrypt Word document with custom password in C# and VB.NET via Spire.Doc for .NET.
Spire.Doc for .NET, specializing in performing Word processing tasks for .NET, provides a Document.Encrypt method which enables users to encrypt Word. The overload passed to this method is string password. Firstly, load the Word document which is needed to protect. Secondly, invoke Document.Encrypt method to encrypt with password. Thirdly, save the encrypt document and launch for viewing. After debugging, a dialog box pops up and requires the password. Enter the password to open the document and the document information will be shown as following to tell users that it is encrypted.
Download and install Spire.Doc for .NET and use the following code to encrypt Word.
using Spire.Doc;
namespace Encryption
{
class Program
{
static void Main(string[] args)
{
//Load Document
Document document = new Document();
document.LoadFromFile(@"E:\Work\Documents\WordDocuments\Spire.Doc for .NET.docx");
//Encrypt
document.Encrypt("eiceblue");
//Save and Launch
document.SaveToFile("Encryption.docx", FileFormat.Docx);
System.Diagnostics.Process.Start("Encryption.docx");
}
}
}
Imports Spire.Doc
Namespace Encryption
Friend Class Program
Shared Sub Main(ByVal args() As String)
'Load Document
Dim document As New Document()
document.LoadFromFile("E:\Work\Documents\WordDocuments\Spire.Doc for .NET.docx")
'Encrypt
document.Encrypt("eiceblue")
'Save and Launch
document.SaveToFile("Encryption.docx", FileFormat.Docx)
System.Diagnostics.Process.Start("Encryption.docx")
End Sub
End Class
End Namespace
Spire.Doc, an easy-to-use component to operate Word document, allows developers to fast generate, write, edit and save Word (Word 97-2003, Word 2007, Word 2010) in C# and VB.NET for .NET, Silverlight and WPF.
C#/VB.NET: Add or Remove Cell Borders in Excel
Cell borders refer to lines that can be added around a cell or range of cells. They can be used to serve different purposes, such as to separate sections in a worksheet, draw readers' attention to important cells, or make the worksheet look more presentable. This article will introduce how to add or remove cell borders in Excel in C# and VB.NET using Spire.XLS for .NET.
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Add Cell Borders in Excel in C# and VB.NET
Spire.XLS for .NET allows adding various kinds of borders to cells in Excel, such as left border, right border, top border, bottom border, diagonal borders, inside borders and outside borders.
You can add a specific border or multiple borders to individual cells or ranges of cells. In addition, you can also set different line styles and line colors for the borders. The following are the main steps to apply different kinds of cell borders with different line styles and line colors:
- Initialize an instance of the Workbook class.
- Get a specific worksheet by its index through Workbook.Worksheets[int] property.
- Get a specific cell range by its name through Worksheet.Range[string] property.
- Get specific borders (such as left, right, top, bottom and diagonal) from the Borders collection of the cell range through CellRange.Borders[BordersLineType] property.
- Set the line styles of the specific borders through IBorder.LineStyle property.
- Set the line colors of the specific borders through IBorder.Color property.
- Get a specific cell range by its name through Worksheet.Range[string] property.
- Add outside borders and/or inside borders to the cell range using CellRange.BorderAround(LineStyleType, Color) method and/or CellRange.BorderInside(LineStyleType, Color) method. Note that inside borders cannot be applied to a single cell.
- Get a specific cell range by its name through Worksheet.Range[string] property.
- Set the line styles and line colors for borders of the cell range through BordersCollection.LineStyle and BordersCollection.Color properties, then set the line style and color for diagonal borders of the cell range.
- Save the result file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
using Spire.Xls.Core;
using System.Drawing;
namespace AddCellBorders
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Set left, right, top, bottom and diagonal up borders for cell B2
CellRange range = sheet.Range["B2"];
IBorder leftBorder = range.Borders[BordersLineType.EdgeLeft];
leftBorder.LineStyle = LineStyleType.MediumDashDotDot;
leftBorder.Color = Color.Red;
IBorder rightBorder = range.Borders[BordersLineType.EdgeRight];
rightBorder.LineStyle = LineStyleType.MediumDashed;
rightBorder.Color = Color.Red;
IBorder topBorder = range.Borders[BordersLineType.EdgeTop];
topBorder.LineStyle = LineStyleType.Medium;
topBorder.Color = Color.Red;
IBorder bottomBorder = range.Borders[BordersLineType.EdgeBottom];
bottomBorder.LineStyle = LineStyleType.Medium;
bottomBorder.Color = Color.Red;
IBorder diagonalUpBorder = range.Borders[BordersLineType.DiagonalUp];
diagonalUpBorder.LineStyle = LineStyleType.Thin;
diagonalUpBorder.Color = Color.Red;
//Set diagonal borders for cell C4
range = sheet.Range["C4"];
diagonalUpBorder = range.Borders[BordersLineType.DiagonalUp];
diagonalUpBorder.LineStyle = LineStyleType.Double;
diagonalUpBorder.Color = Color.Blue;
IBorder diagonalDownBorder = range.Borders[BordersLineType.DiagonalDown];
diagonalDownBorder.LineStyle = LineStyleType.Double;
diagonalDownBorder.Color = Color.Blue;
//Set outside borders for cell D6
range = sheet.Range["D6"];
range.BorderAround(LineStyleType.Double, Color.Green);
//Set inside borders for cell range E8:F10
range = sheet.Range["E8:F10"];
range.BorderInside(LineStyleType.MediumDashed, Color.DarkGray);
//Set inside and outside borders for cell range F12:G14
range = sheet.Range["F12:G14"];
range.BorderInside(LineStyleType.MediumDashed, Color.Pink);
range.BorderAround(LineStyleType.Medium, Color.Magenta);
//Set borders for cell range G16:H18
range = sheet.Range["G16:H18"];
range.Borders.LineStyle = LineStyleType.Thick;
range.Borders.Color = Color.Cyan;
//Set line style and line color of diagonal borders for cell range G16:H18
diagonalUpBorder = range.Borders[BordersLineType.DiagonalUp];
diagonalUpBorder.LineStyle = LineStyleType.Dotted;
diagonalUpBorder.Color = Color.DarkGray;
diagonalDownBorder = range.Borders[BordersLineType.DiagonalDown];
diagonalDownBorder.LineStyle = LineStyleType.Dotted;
diagonalDownBorder.Color = Color.DarkGray;
//Save the result file
workbook.SaveToFile("AddBorders.xlsx", ExcelVersion.Version2013);
}
}
}
Remove Cell Borders in Excel in C# and VB.NET
You can remove all borders of a cell or range of cells by setting the CellRange.Borders.LineStyle property as LineStyleType.None. The following are the details steps:
- Initialize an instance of the Workbook class.
- Load an Excel file using Workbook.LoadFromFile() method.
- Get a specific worksheet by its index through Workbook.Worksheets[int] property.
- Get a specific cell range by its name through Worksheet.Range[string] property.
- Remove the borders of the cell range by setting CellRange.Borders.LineStyle property as LineStyleType.None.
- Save the result file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace RemoveCellBorders
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Load an Excel file
workbook.LoadFromFile("AddBorders.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Remove borders of cell range G16:H18
CellRange range = sheet.Range["G16:H18"];
range.Borders.LineStyle = LineStyleType.None;
workbook.SaveToFile("RemoveBorders.xlsx", ExcelVersion.Version2013);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
C#/VB.NET: Apply Fonts to Excel Cells
When you’re creating or reviewing a worksheet, you may want to format text in some specific cells using font styles in order to make them stand out. For example, you can change the font type, font color, font size and make text bold. This article will show you how to apply fonts to individual cells or cell ranges by using Spire.XLS for .NET.
- Apply Different Fonts to Different Cells
- Appy Multiple Fonts in a Single Cell
- Apply a Font to a Cell Range
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for.NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Apply Different Fonts to Different Cells
Spire.XLS provides the CellRange.Style.Font property which you can use to set or change the font name, color, size and style in a cell easily. The following are the steps to apply a font style to a specific cell using Spire.XLS for .NET.
- Create a Workbook object.
- Get the first worksheet using Workbook.Worksheets[index] property.
- Get a specific cell using Worksheet.Range[int Row, int Column] property.
- Set the value of the cell using CellRange.Value property.
- Set the font name, color, size and style of the cell value through the properties under the CellRange.Value.Font object.
- Save the workbook to an Excel file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
using System.Drawing;
namespace ApplySingleFontInCellRange
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook object
Workbook workbook = new Workbook();
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Set font name
int row = 1;
sheet.Range[row, 1].Value = "Font Name";
sheet.Range[row, 2].Value = "Arial Black";
sheet.Range[row, 2].Style.Font.FontName = "Arial Black";
//Set font size
sheet.Range[row += 2, 1].Value = "Font Size";
sheet.Range[row, 2].Value = "15";
sheet.Range[row, 2].Style.Font.Size = 15;
//Set font color
sheet.Range[row += 2, 1].Value = "Font Color";
sheet.Range[row, 2].Value = "Red";
sheet.Range[row, 2].Style.Font.Color = Color.Red;
//Make text bold
sheet.Range[row += 2, 1].Value = "Bold";
sheet.Range[row, 2].Value = "Bold";
sheet.Range[row, 2].Style.Font.IsBold = true;
//Make text italic
sheet.Range[row += 2, 1].Value = "Italic";
sheet.Range[row, 2].Value = "Italic";
sheet.Range[row, 2].Style.Font.IsItalic = true;
//Underline text
sheet.Range[row += 2, 1].Value = "Underline";
sheet.Range[row, 2].Value = "Underline";
sheet.Range[row, 2].Style.Font.Underline = FontUnderlineType.Single;
//Strikethrough text
sheet.Range[row += 2, 1].Value = "Strikethrough ";
sheet.Range[row, 2].Value = "Strikethrough ";
sheet.Range[row, 2].Style.Font.IsStrikethrough = true;
//Auto fit column width
sheet.AllocatedRange.AutoFitColumns();
//Save the workbook to an Excel file
workbook.SaveToFile("ApplySingleFontInCell.xlsx", ExcelVersion.Version2016);
}
}
}
Appy Multiple Fonts in a Single Cell
Mixing fonts in a single cell can help you emphasize some specific characters within the cell. The following are the steps to apply multiple fonts in a cell using Spire.XLS for .NET.
- Create a Workbook object.
- Get the first worksheet using Workbook.Worksheets[index] property.
- Create two ExcelFont objects using Workbook.CreateFont() method.
- Get a specific cell using Worksheet.Range[int Row, int Column] property, and set the rich text content of the cell using CellRange.RichText.Text property.
- Apply the two ExcelFont objects to the rich text using RichText.SetFont() method.
- Save the workbook to an Excel file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace ApplyMultipleFontsInACell
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook object
Workbook workbook = new Workbook();
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Create a font
ExcelFont font1 = workbook.CreateFont();
font1.FontName = "Arial Black";
font1.KnownColor = ExcelColors.LightBlue;
font1.IsBold = true;
font1.Size = 13;
//Create another font
ExcelFont font2 = workbook.CreateFont();
font2.KnownColor = ExcelColors.Red;
font2.IsBold = true;
font2.IsItalic = true;
font2.FontName = "Algerian";
font2.Size = 15;
//Returns a RichText object from a specified cell
RichText richText = sheet.Range["A1"].RichText;
//Set the text of RichText object
richText.Text = "Buy One, Get One Free";
//Apply the first font to specified range of characters
richText.SetFont(0, 16, font1);
//Apply the second font to specified range of characters
richText.SetFont(17, 21, font2);
//Set column width
sheet.Columns[0].ColumnWidth = 33;
//Save the workbook to an Excel file
workbook.SaveToFile("ApplyMultipleFonts.xlsx", ExcelVersion.Version2016);
}
}
}
Apply a Font to a Cell Range
Spire.XLS provides the CellStyle class to manage the cell formatting such as fill color, text alignment and font style. You can create a cell style and apply it to a cell range or the whole worksheet using CellRange.ApplyStyle() method and Worksheet.ApplyStyle() method, respectively. The following are the steps to apply a font to a cell range using Spire.XLS for .NET.
- Create a Workbook object.
- Load a sample Excel file using Workbook.LoadFromFile() method.
- Get the first worksheet using Workbook.Worksheets[index] property.
- Create a CellStyle object using Workbook.Styles.Add() method, and set the font style through the CellStyle.Font property.
- Apply the cell style to a cell range using CellRange.ApplyStyle() method.
- Save the workbook to another Excel file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
using System.Drawing;
namespace ApplyFontToCellRange
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook object
Workbook workbook = new Workbook();
//Load a sample Excel file
workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Create a CellStyle object
CellStyle fontStyle = workbook.Styles.Add("headerFontStyle");
//Set the font color, size and style
fontStyle.Font.Color = Color.White;
fontStyle.Font.IsBold = true;
fontStyle.Font.Size = 12;
fontStyle.HorizontalAlignment = HorizontalAlignType.Center;
//Create a CellStyleFlag object, setting the FontColor, FontBold, FontSize and HorizontalAlignment properties to true
CellStyleFlag flag = new CellStyleFlag();
flag.FontColor = true;
flag.FontBold = true;
flag.FontSize = true;
flag.HorizontalAlignment = true;
//Apply the cell style to header row
sheet.Range[1, 1, 1, 8].ApplyStyle(fontStyle, flag);
//Apply the cell style to the whole worksheet
//sheet.ApplyStyle(fontStyle);
//Save the workbook to another Excel file
workbook.SaveToFile("ApplyFontToCellRange.xlsx", ExcelVersion.Version2016);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
C#/VB.NET: Set Background Color and Pattern for Excel Cells
By default, the cells in an Excel document are formatted with a background color of transparent. When you need to emphasize some important data in particular cells, Microsoft Excel provides the "Fill Color" formatting option to change the background color or pattern style of the cells. In this article, you will learn how to programmatically set background color and pattern style for a specified cell or cell range in Excel using Spire.XLS for .NET.
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Set Background Color and Pattern for Excel Cells
The detailed steps are as follows.
- Instantiate a Workbook object.
- Load a sample Excel file using Workbook.LoadFromFile() method.
- Get a specified worksheet using Workbook.Worksheets[] property.
- Get a specified cell range using Worksheet.Range[] property.
- Get the style of the specified cell range using CellRange.Style property.
- Set the background color for the specified cell range using CellStyle.Color property.
- Set the fill pattern style for the specified cell range using CellStyle.FillPattern property.
- Save the result file using Workbook.SaveToFile() method.
- C#
- VB.NET
using System.Drawing;
using Spire.Xls;
namespace CellBackground
{
class Program
{
static void Main(string[] args)
{
//Instantiate a Workbook object
Workbook workbook = new Workbook();
//Load a sample Excel file
workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\data.xlsx");
//Get the first worksheet
Worksheet worksheet = workbook.Worksheets[0];
//Set background color for Range ["A1:E1"] and ["A2:A10"]
worksheet.Range["A1:E1"].Style.Color = Color.MediumSeaGreen;
worksheet.Range["A2:A10"].Style.Color = Color.LightYellow;
//Set background color for cell E6
worksheet.Range["E6"].Style.Color = Color.Red;
//Set pattern style for Range ["B4:D5"]
worksheet.Range["B4:D5"].Style.FillPattern = ExcelPatternType.Percent125Gray;
//Save the result file
workbook.SaveToFile("CellBackground.xlsx", ExcelVersion.Version2013);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
C#/VB.NET: Add Hyperlinks to Excel
A hyperlink in Excel is a clickable text or an image that navigates to a specific location, such as a webpage, an existing file, an email address, or another cell in the current workbook. This article will demonstrate how to add hyperlinks to Excel in C# and VB.NET using Spire.XLS for .NET library.
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Add Text Hyperlinks to Excel in C# and VB.NET
The following are the steps to add a text hyperlink to Excel:
- Create an instance of Workbook class.
- Get the desired worksheet using Workbook.Worksheets[sheetIndex] property.
- Access the specific cell that you want to add hyperlink to using Worksheet.Range[cellName] property.
- Add a hyperlink to the cell using Worksheet.HyperLinks.Add() method.
- Set the type, display text and address for the hyperlink using XlsHyperLink.Type, XlsHyperLink.TextToDisplay and XlsHyperLink.Address properties.
- Autofit column width using XlsWorksheet.AutoFitColumn() method.
- Save the result file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace AddTextHyperlinks
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Add a text hyperlink that leads to a webpage
CellRange cell1 = sheet.Range["B3"];
HyperLink urlLink = sheet.HyperLinks.Add(cell1);
urlLink.Type = HyperLinkType.Url;
urlLink.TextToDisplay = "Link to a website";
urlLink.Address = "https://www.google.com/";
//Add a text hyperlink that leads to an email address
CellRange cell2 = sheet.Range["E3"];
HyperLink mailLink = sheet.HyperLinks.Add(cell2);
mailLink.Type = HyperLinkType.Url;
mailLink.TextToDisplay = "Link to an email address";
mailLink.Address = "mailto:abc@outlook.com";
//Add a text hyperlink that leads to an external file
CellRange cell3 = sheet.Range["B7"];
HyperLink fileLink = sheet.HyperLinks.Add(cell3);
fileLink.Type = HyperLinkType.File;
fileLink.TextToDisplay = "Link to an external file";
fileLink.Address = "C:\\Users\\Administrator\\Desktop\\Report.xlsx";
//Add a text hyperlink that leads to a cell in another sheet
CellRange cell4 = sheet.Range["E7"];
HyperLink linkToSheet = sheet.HyperLinks.Add(cell4);
linkToSheet.Type = HyperLinkType.Workbook;
linkToSheet.TextToDisplay = "Link to a cell in sheet2";
linkToSheet.Address = "Sheet2!B5";
//Add a text hyperlink that leads to a UNC address
CellRange cell5 = sheet.Range["B11"];
HyperLink uncLink = sheet.HyperLinks.Add(cell5);
uncLink.Type = HyperLinkType.Unc;
uncLink.TextToDisplay = "Link to a UNC address";
uncLink.Address = "\\\\192.168.0.121";
//Autofit column width
sheet.AutoFitColumn(2);
sheet.AutoFitColumn(5);
//Save the result file
workbook.SaveToFile("AddTextHyperlinks.xlsx", ExcelVersion.Version2013);
}
}
}
Add Image Hyperlinks to Excel in C# and VB.NET
The following are the steps to add an image hyperlink to Excel:
- Create an instance of Workbook class.
- Get the desired worksheet using Workbook.Worksheets[sheetIndex] property.
- Insert an image into the worksheet using Worksheet.Pictures.Add() method and set column width and row height.
- Add a hyperlink to the image using XlsBitmapShape.SetHyperLink() method.
- Save the result file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace AddImageHyperlinks
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Insert an image into the worksheet
ExcelPicture picture = sheet.Pictures.Add(5, 3, "Logo.png");
sheet.Columns[2].ColumnWidth = 11;
sheet.Rows[4].RowHeight = 60;
//Add a hyperlink to the image
picture.SetHyperLink("https://www.e-iceblue.com", true);
//Save the result file
workbook.SaveToFile("AddImageHyperlink.xlsx", ExcelVersion.Version2013);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
Spire.XLS for .NET Program Guide Content
Spire.XLS is a professional Excel .NET API that can be used to create, read, write, convert and print Excel files in any type of .NET application. It offers object model Excel API for speeding up Excel programming in .NET platform - create new Excel documents from template, edit existing Excel documents and convert Excel files.
Spire.XLS for .NET enjoys good reputation in both enterprise and individual customers. These customer types include Banks, Data processing houses, Educational institutions, Government organizations, Insurance firms, Legal institutions, Postal/cargo services and etc.
Extract Images from Word in C#, VB.NET
Solution in this guide demonstrates how to extract images from an existing Word document and save them to a specified path in C# and VB.NET via Spire.Doc for .NET.
Image is one kind of document objects which belongs to paragraph items. Spire.Doc for .NET provides a DocumentObject class to store images in Document. And also provides a DocPicture class to get and set images of document. Download and Install Spire.Doc for .NET. Follow steps to extract images from Word.
- Get each Paragraph of each Section in Document.
- Get each DocumentObject of ChildObjects in Paragraph.
- If the gotten DocumentObjectType is Picture, initialize a DocPicture class instance and assign the DocumentObject as value for this instance.
- Initialize a String class instance to name extracted image instead of its original name by invoking String.Format(String format, object arg0)
- Invoke DocPictrue.Image.Save(String, ImageFormat) method to save images.
using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System;
namespace ExtractImage
{
class Program
{
static void Main(string[] args)
{
//Load document
Document document = new Document(@"E:\Work\Documents\WordDocuments\Spire.Doc for .NET.docx");
int index = 0;
//Get Each Section of Document
foreach (Section section in document.Sections)
{
//Get Each Paragraph of Section
foreach (Paragraph paragraph in section.Paragraphs)
{
//Get Each Document Object of Paragraph Items
foreach (DocumentObject docObject in paragraph.ChildObjects)
{
//If Type of Document Object is Picture, Extract.
if (docObject.DocumentObjectType == DocumentObjectType.Picture)
{
DocPicture picture = docObject as DocPicture;
//Name Image
String imageName = String.Format(@"images\Image-{0}.png", index);
//Save Image
picture.Image.Save(imageName, System.Drawing.Imaging.ImageFormat.Png);
index++;
}
}
}
}
}
}
}
Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Namespace ExtractImage
Class Program
Private Shared Sub Main(args As String())
'Load document
Dim document As New Document("E:\Work\Documents\WordDocuments\Spire.Doc for .NET.docx")
Dim index As Integer = 0
'Get Each Section of Document
For Each section As Section In document.Sections
'Get Each Paragraph of Section
For Each paragraph As Paragraph In section.Paragraphs
'Get Each Document Object of Paragraph Items
For Each docObject As DocumentObject In paragraph.ChildObjects
'If Type of Document Object is Picture, Extract.
If docObject.DocumentObjectType = DocumentObjectType.Picture Then
Dim picture As DocPicture = TryCast(docObject, DocPicture)
'Name Image
Dim imageName As [String] = [String].Format("images\Image-{0}.png", index)
'Save Image
picture.Image.Save(imageName, System.Drawing.Imaging.ImageFormat.Png)
index += 1
End If
Next
Next
Next
End Sub
End Class
End Namespace
After debugging, all the extracted images are saved in a specified path. Open the directory, the images will be found.
Spire.Doc, an easy-to-use component to operate Word document, allows developers to fast generate, write, edit and save Word (Word 97-2003, Word 2007, Word 2010) in C# and VB.NET for .NET, Silverlight and WPF.
How to Traverse a Document Tree
Document Tree Traversal
using System;
using System.Collections.Generic;
using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using Spire.Doc.Interface;
using Spire.Doc.Collections;
namespace ExtractText
{
class Program
{
static void Main(string[] args)
{
//Open a word document.
Document document = new Document("Sample.doc");
IList<IDocumentObject> nodes = GetAllObjects(document);
foreach (IDocumentObject node in nodes)
{
//Judge the object type.
if (node.DocumentObjectType == DocumentObjectType.TextRange)
{
TextRange textNode = node as TextRange;
Console.WriteLine(textNode.Text);
}
}
}
private static IList<IDocumentObject> GetAllObjects(Document document)
{
//Create a list.
List<IDocumentObject> nodes = new List<IDocumentObject>();
//Create a new queue.
Queue<ICompositeObject> containers = new Queue<ICompositeObject>();
//Put the document objects in the queue.
containers.Enqueue(document);
while (containers.Count > 0)
{
ICompositeObject container = containers.Dequeue();
DocumentObjectCollection docObjects = container.ChildObjects;
foreach (DocumentObject docObject in docObjects)
{
nodes.Add(docObject);
//Judge the docObject.
if (docObject is ICompositeObject)
{
containers.Enqueue(docObject as ICompositeObject);
}
}
}
return nodes;
}
}
}
Imports System
Imports System.Collections.Generic
Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Imports Spire.Doc.Interface
Imports Spire.Doc.Collections
Module Module1
Sub Main()
'Open a word document.
Dim document As New Document("Sample.doc")
Dim nodes As IList(Of IDocumentObject)() = GetAllObjects(document)
Dim containers As New Queue(Of ICompositeObject)()
For Each node As IDocumentObject In nodes
'Judge the object type.
If (node.DocumentObjectType = DocumentObjectType.TextRange) Then
Dim textNode As TextRange = node
Console.WriteLine(textNode.Text)
End If
Next
End Sub
Function GetAllObjects(ByVal document As Document) As IList(Of IDocumentObject)
'Create a list.
Dim nodes As New List(Of IDocumentObject)()
'Create a new queue.
Dim containers As New Queue(Of ICompositeObject)()
'Put the document objects in the queue.
containers.Enqueue(document)
While (containers.Count > 0)
Dim container As ICompositeObject = containers.Dequeue()
Dim docObjects As DocumentObjectCollection = container.ChildObjects
For Each docObject As DocumentObject In docObjects
nodes.Add(docObject)
'Judge the docObject.
If TypeOf docObject Is ICompositeObject Then
containers.Enqueue(TryCast(docObject, ICompositeObject))
End If
Next
End While
Return nodes
End Function
End Module
C#/VB.NET: Insert a Bookmark in Word
When dealing with a lengthy Word document, inserting bookmarks with different names is a convenient way to mark places in the document. Once the bookmarks are inserted, you can quickly jump to the specified places without scrolling through page after page. In this article, you will learn how to insert a bookmark into an existing Word document using Spire.Doc for .NET.
Install Spire.Doc for .NET
To begin with, you need to add the DLL files included in the Spire.Doc for .NET package as references in your .NET project. The DLLs files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.Doc
Insert a Bookmark into an Existing Word Document
Spire.Doc for .NET provides the Paragraph.AppendBookmarkStart(string name) and Paragraph.AppendBookmarkEnd(string name) methods to insert a bookmark with specified name into the specified paragraphs in a Word document. The detailed steps are as follows.
- Create a Document instance.
- Load a sample Word document using Document.LoadFromFile() method.
- Get the first section of the Word Document using Document.Sections[] property.
- Get a specified paragraph of the section using Section.Paragraphs[] property.
- Append the start of the bookmark with specified name to the specified paragraph using Paragraph.AppendBookmarkStart(string name) method.
- Append the end of the bookmark with specified name to the specified paragraph using Paragraph.AppendBookmarkEnd(string name) method.
- Save the document to another file using Document. SaveToFile() method.
- C#
- VB.NET
using Spire.Doc;
namespace WordBookmark
{
class Bookmark
{
static void Main(string[] args)
{
//Create a Document instance
Document document = new Document();
//Load a sample Word document
document.LoadFromFile(@"C:\Users\Administrator\Desktop\test.docx");
//Get the first section
Section section = document.Sections[0];
//Insert a bookmark with specified name into the specified paragraphs
section.Paragraphs[9].AppendBookmarkStart("SecurityTerm");
section.Paragraphs[11].AppendBookmarkEnd("SecurityTerm");
//Save the document to file
document.SaveToFile("Bookmark.docx", FileFormat.Docx);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
C#/VB.NET: Add Header and Footer in Word Documents
In Word documents, you can add time, date, title, reference information, page number, content description and image /logo in header or footer to enrich the document. This article shows how to add headers and footers in C# and VB.NET applications using Spire.Doc for .NET.
Install Spire.Doc for .NET
To begin with, you need to add the DLL files included in the Spire.Doc for .NET package as references in your .NET project. The DLLs files can be either downloaded from this link or installed via NuGet.
- Package Manager
PM> Install-Package Spire.Doc
Add Header and Footer
The table gives a list of main classes, properties and methods used in the operation.
| Name | Description |
| Document Class | Represents a Word document model. |
| Document. LoadFromFile() Method | Load a Word document. |
| Section Class | Represents a section in a Word document. |
| Document.Sections Property | Gets document sections. |
| HeaderFooter Class | Represents a header and footer model for Word. |
| Section.HeadersFooters.Header Property | Gets headers/footers of current section. |
| Paragraph Class | Represents a paragraph in a document. |
| HeaderFooter. AddParagraph() Method | Adds paragraph at end of section. |
| TextRange Class | Represents a text range. |
| Paragraph.AppendText() Method | Appends text to the end of paragraph. |
| Document. SaveToFile() Method | Saves the document to file in Microsoft Word or another file format. |
The following are the steps about adding header and footer.
- Create an instance of Document class.
- Load the sample document using Document.LoadFromFile(string fileName) method.
- Get the specified section of Word Document using Document.Sections Property
- Add Header
- Get header using HeadersFooters.Header property.
- Add paragraph using HeaderFooter. AddParagraph() method and set paragraph alignment.
- Append text using Paragraph.AppendText(string text) method and set font name, size, color ,etc.
- Add Footer
- Get footer using HeadersFooters.Footer proterty.
- Add paragraph and text in footer.
- Save Word document using Document. SaveToFile(string filename, FileFormat fileFormat) method.
- C#
- VB.NET
using Spire.Doc;
using Spire.Doc.Documents;
using System.Drawing;
using Spire.Doc.Fields;
namespace AddHeaderAndFooter
{
class Program
{
static void Main(string[] args)
{
//Create an instance of Document class
Document document = new Document();
//Load a Word document
document.LoadFromFile("input.docx");
//Get the first section of Word Document
Section section = document.Sections[0];
//Get header via HeadersFooters.Header property
HeaderFooter header = section.HeadersFooters.Header;
//Add a paragraph and set paragraph alignment style
Paragraph headerPara = header.AddParagraph();
headerPara.Format.HorizontalAlignment = HorizontalAlignment.Left;
//Append text and set font name, size, color,etc.
TextRange textrange = headerPara.AppendText("E-iceblue Co. Ltd." + "\n Your Office Development Master");
textrange.CharacterFormat.FontName = "Arial";
textrange.CharacterFormat.FontSize = 13;
textrange.CharacterFormat.TextColor = Color.DodgerBlue;
textrange.CharacterFormat.Bold = true;
//Get footer, add paragraph and append text
HeaderFooter footer = section.HeadersFooters.Footer;
Paragraph footerPara = footer.AddParagraph();
footerPara.Format.HorizontalAlignment = HorizontalAlignment.Center;
textrange = footerPara.AppendText("Copyright © 2021 All Rights Reserved.");
textrange.CharacterFormat.Bold = false;
textrange.CharacterFormat.FontSize = 11;
//Save to file
document.SaveToFile("output.docx", FileFormat.Docx);
}
}
}
Imports Spire.Doc
Imports Spire.Doc.Documents
Imports System.Drawing
Imports Spire.Doc.Fields
Namespace AddHeaderAndFooter
Class Program
Private Shared Sub Main(args As String())
'Create an instance of Document class
Dim document As New Document()
'Load a Word document
document.LoadFromFile("input.docx")
'Get the first section of Word Document
Dim section As Section = document.Sections(0)
'Get header via HeadersFooters.Header property
Dim header As HeaderFooter = section.HeadersFooters.Header
'Add a paragraph and set paragraph alignment style
Dim headerPara As Paragraph = header.AddParagraph()
headerPara.Format.HorizontalAlignment = HorizontalAlignment.Left
'Append text and set font name, size, color ,etc.
Dim textrange As TextRange = headerPara.AppendText("E-iceblue Co. Ltd." + vbLf & " Your Office Development Master")
textrange.CharacterFormat.FontName = "Arial"
textrange.CharacterFormat.FontSize = 13
textrange.CharacterFormat.TextColor = Color.DodgerBlue
textrange.CharacterFormat.Bold = True
'Get footer, add paragraph and append text
Dim footer As HeaderFooter = section.HeadersFooters.Footer
Dim footerPara As Paragraph = footer.AddParagraph()
footerPara.Format.HorizontalAlignment = HorizontalAlignment.Center
textrange = footerPara.AppendText("Copyright © 2021 All Rights Reserved.")
textrange.CharacterFormat.Bold = False
textrange.CharacterFormat.FontSize = 11
'Save to file
document.SaveToFile("output.docx", FileFormat.Docx)
End Sub
End Class
End Namespace
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.