Hi
below is the mail merge callback method:
public void ImageFieldMerging(ImageFieldMergingArgs args)
When the mail merge callback method gets called to dynamic set an image
we assign the image as follows
args.ImageStream = myImageStream;
The issue is that aspose closes the stream after the merge, so I have to create new stream every time.
But I have a requirement that I use the same logo on all dynamic pages, so for
performance, I want to cache my image streams.
Is there a way to do this?
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Hello
What I am saying is that I have cached the logo in my class as follows.
public class HandleMergeImageField : IFieldMergingCallback
{
private MemoryStream LogoImage;
public HandleMergeImage()
{
byte[] bytes = File.ReadAllBytes(imageFilepath);
LogoImage = new MemoryStream(bytes);
}
public void ImageFieldMerging(ImageFieldMergingArgs args)
{
if ((args.FieldValue == null) ||
string.IsNullOrWhiteSpace(args.FieldValue.ToString()))
{
return;
}
MemoryStream imageStream = null;
if (args.FieldName.Equals("Logo"))
{
args.ImageStream = LogoImage;
}
}
}
The first time merge image is called - all is ok,
but 2nd time it crashes because error says the stream was closed
Please declare this variable at global level to avoid this exception.
If you still face problem, please share the requested resources in my previous post for testing.