XfaImageField set image

[eskillundgren]

Hello!

I'm having some trouble setting the image of an XfaImageField.

What I have so far is:

Code: Select all

                               
                        if (xfaField is XfaImageField){
                            XfaImageField xf = xfaField as XfaImageField;
                            if (xf.Name=="topmostSubform[0].Page1[0].ImgSignatur[0]"){
                            Image MyImage = Image.FromFile(@"C:\ASPdotNET_logo.jpg");
                            var msy = new MemoryStream();
                            MyImage.Save(msy, System.Drawing.Imaging.ImageFormat.Jpeg);
                            msy.Position = 0;
                            xf.Image = msy;
                       
                            }
                        }


I also found this (de url:ized but from here):
/forum/changing-the-image-on-a-button-t5794.html
which seems very similar, but somehow I keep getting "method not found" on the row where I try to set the image:
xf.Image = msy;

Any ideas on what I'm doing wrong?

Cheers!

/Eskil

[Brian.Li]

Hello Eskil,

Thanks for your inquiry.
Please note that only when you use the .NETStandard dlls, the type of the property "XfaImageField.Image" is Stream, otherwise the type should be Image.
If you are using our .NET Framework dlls or .NETCore dlls, please use the following code instead.

Code: Select all

                if (xfaField is XfaImageField)
                {
                    XfaImageField xf = xfaField as XfaImageField;
                    if (xf.Name == "topmostSubform[0].Page1[0].ImgSignatur[0]")
                    {
                        System.Drawing.Image MyImage = Image.FromFile(@"C:\ASPdotNET_logo.jpg");
                        xf.Image = MyImage;
                    }
                }

Sincerely,
Brian
E-iceblue support team

[eskillundgren]

Hello and thank you for your response!

The reason I'm using stream is that the xg.Image wants a stream, hard to know for which framework I'm on

So if I do as per your suggestion I get an error in Visual Studio, the one where you get the squiggly red text and:
"Cannot implicitly convert type 'Syste.Drawing.Image' to 'System.IO.Stream'"

I use you NuGet Spire.PDF (7.6.15) and one solution might be to change that, since I don't have to use the NuGet package. Or?

Cheers!

/Eskil

[Brian.Li]

Hello Eskil,

Thanks for your feedback.
To help us investigate your issue more quickly and accurately, please provide your project which can reproduce your issue. You could send it to us ([email protected]) via email. Thanks in advance for your assistance.

Sincerely,
Brian
E-iceblue support team

[Brian.Li]

Hello Eskil,

Thanks for providing your project via email.
I provided you with my test project via email, please test it on your side to see if the issue occurs.

Sincerely,
Brian
E-iceblue support team

[eskillundgren]

Hello again!

After reviewing the code, when simplified and not referencing other projects, everything worked as expected.

Following simplified code should do the job for anyone wishing to use a stream:

Code: Select all

                                     
if (xfaField is XfaImageField){
XfaImageField xf = xfaField as XfaImageField;
     if (xf.Name=="topmostSubform[0].Page1[0].ImgSignatur[0]"){
          Image MyImage = Image.FromFile(@"C:\ASPdotNET_logo.jpg");
          var msy = new MemoryStream();
          MyImage.Save(msy, System.Drawing.Imaging.ImageFormat.Jpeg);         
          msy.Position = 0;
          xf.Image = msy;
     }
}     


Cheers and thanks!

[Brian.Li]

Hello,

Thanks for your feedback and your sharing.
If you encounter any issues related to our products in the future, please feel free to contact us.

Sincerely,
Brian
E-iceblue support team