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Nifty  
#1 Posted : Tuesday, December 26, 2017 12:49:36 PM(UTC)
Nifty

Rank: Advanced Member

Groups: Member
Joined: 10/12/2015(UTC)
Posts: 35

While we are processing psd files there are situations when we need to provide an empty string for the text value.

Code:
psdProcessor.StringCallback = (processor, textFrame) => {

	if(textFrame.Text == "PET NAME")
		return GetPetNameFromDatabase();

	return textFrame.Text;
};


For instance, we have one text layer that provides a Name, and another with their Pet Name. If they don't have a Pet Name I'm returning string.Empty, but that throws an ArgumentNullException.

Code:
Message: Value cannot be null. Parameter name: text

Aurigma.GraphicsMill.AdvancedDrawing.Graphics.DrawText(Text text):21
Aurigma.GraphicsMill.Templates.PsdProcessor.RenderText(PsdTextFrame frame):673
Aurigma.GraphicsMill.Templates.PsdProcessor.RenderFrame(PsdFrame frame):23
Aurigma.GraphicsMill.Templates.PsdProcessor.CreateContainer(PsdFrame frame):46
Aurigma.GraphicsMill.Templates.PsdProcessor.CreateContainer(Stream psdStream):103
Aurigma.GraphicsMill.Templates.PsdProcessor.Render(Stream psdStream, Stream outStream, WriterSettings writerSettings):42



How can we return an empty string or flag the layer to not be rendered? Unfortunately this is crucial to our processing/logic.
Andrey Semenov  
#2 Posted : Tuesday, December 26, 2017 8:54:26 PM(UTC)
Andrey Semenov

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Groups: Member, Administration
Joined: 7/4/2017(UTC)
Posts: 33

Was thanked: 10 time(s) in 10 post(s)
Hi,

Try to return "\0" (which is the Unicode null character) value instead of string.Empty.

Regards,
Andrew

Edited by user Tuesday, December 26, 2017 8:55:29 PM(UTC)  | Reason: Not specified

Nifty  
#3 Posted : Wednesday, December 27, 2017 8:26:05 AM(UTC)
Nifty

Rank: Advanced Member

Groups: Member
Joined: 10/12/2015(UTC)
Posts: 35

That worked perfect. Thank you.
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