This sample demo has demonstrated how to draw nested grid in PDF document and set grid row&cell format. In the following section, we are going to create a simple PDF grid and show you how to insert an image to a specific PDF grid cell in C#. Before we can follow the code snippet below to accomplish the task, we have to prepare the environment first.
Download Spire.PDF and install it on system, create or open a .NET class application in Visual Studio 2005 or above versions, add Spire.PDF.dll to your .NET project assemblies.Then let's code step by step to make a better understanding about the whole procedure.
Step 1: Create a PDF document and add a new page.
PdfDocument doc = new PdfDocument(); PdfPageBase page = doc.Pages.Add();
Step 2: Create a 2×2 grid to PDF.
PdfGrid grid = new PdfGrid();
PdfGridRow row = grid.Rows.Add();
row = grid.Rows.Add();
grid.Columns.Add(2);
Step 3: Set the cell padding of the PDF grid.
grid.Style.CellPadding = new PdfPaddings(1, 1, 1, 1);
Step 4: Set the width of the columns.
float width = page.Canvas.ClientSize.Width - (grid.Columns.Count + 1);
grid.Columns[0].Width = width * 0.25f;
grid.Columns[1].Width = width * 0.25f;
Step 5: Load an image from disk.
PdfGridCellContentList lst = new PdfGridCellContentList();
PdfGridCellContent textAndStyle = new PdfGridCellContent();
textAndStyle.Image = PdfImage.FromFile("..\\..\\image1.jpg");
Step 6: Set the size of image and insert it to the first cell.
textAndStyle.ImageSize = new SizeF(50, 50);
lst.List.Add(textAndStyle);
grid.Rows[0].Cells[0].Value = lst;
grid.Rows[1].Height = grid.Rows[0].Height;
Step 7: Draw PDF grid into page at the specific location.
PdfLayoutResult result = grid.Draw(page, new PointF(10, 30));
Step 8: Save to a PDF file and launch the file.
doc.SaveToFile(outputFile, FileFormat.PDF); System.Diagnostics.Process.Start(outputFile);
Result:
Full C# Code:
using Spire.Pdf;
using Spire.Pdf.Graphics;
using Spire.Pdf.Grid;
using System.Drawing;
namespace InsertImage
{
class Program
{
static void Main(string[] args)
{
string outputFile = @"..\..\output.pdf";
//Create a pdf document
PdfDocument doc = new PdfDocument();
//Add a page for the pdf document
PdfPageBase page = doc.Pages.Add();
//Create a pdf grid
PdfGrid grid = new PdfGrid();
//Set the cell padding of pdf grid
grid.Style.CellPadding = new PdfPaddings(1, 1, 1, 1);
//Add a row for pdf grid
PdfGridRow row = grid.Rows.Add();
//Add two columns for pdf grid
grid.Columns.Add(2);
float width = page.Canvas.ClientSize.Width - (grid.Columns.Count + 1);
//Set the width of the first column
grid.Columns[0].Width = width * 0.25f;
grid.Columns[1].Width = width * 0.25f;
//Add a image
PdfGridCellContentList lst = new PdfGridCellContentList();
PdfGridCellContent textAndStyle = new PdfGridCellContent();
textAndStyle.Image = PdfImage.FromFile("..\\..\\image1.jpg");
//Set the size of image
textAndStyle.ImageSize = new SizeF(50, 50);
lst.List.Add(textAndStyle);
//Add a image into the first cell.
row.Cells[0].Value = lst;
//Draw pdf grid into page at the specific location
PdfLayoutResult result = grid.Draw(page, new PointF(10, 30));
//Save to a pdf file
doc.SaveToFile(outputFile, FileFormat.PDF);
System.Diagnostics.Process.Start(outputFile);
}
}
}
