I know the general message dialog box, I can achieve by the following code
But I want to use the error message dialog box, there is a small red cross in the dialog box, is there anyone know which class is it?
Thanks very much
Solved! Go to Solution.
Solved! by SENL1362. See the answer in context.
Probably PresentationFramework.dll (and PresentationCore.dll)
It's need to reference System.Windows.Forms.dll
Then using System.Windows.Froms namespace
Last, write the following code.
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