Web Forms :: Display Not Found Image If The Original Image Not Found?

Sep 22, 2013

in my asp.net+vb web i am using this code to display image of workers in web page as per their id and it works fine

Dim id1 As String = "11022"
id1 = " + idtxt.Text + "
Image1.ImageUrl = "~/photos/" + ID + ".jpg"
End If

there persons whose photo is not uploaded in server . i want to show an alternate image name notfound.jpg if the photo is not found

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