主题：提示文件不存在

'显示图片

Dim img As String =shang1.Current("spdm")+"-"+shang1.Current("gg1dm")+".jpg"

img="http://192.168.8.134:6868/img/imgbig/"+img

Dim img1 As String ="http://192.168.8.134:6868/img/imgbig/文件不存在.jpg"

Dim pbx As WinForm.PictureBox = e.Form.Controls("tupian")

pbx.SizeMode = ImageSizeMode.Zoom    

Try   '远程文件存在

    pbx.imagefile= img

catch ex As Exception   '远程文件不存在

    pbx.imagefile= img1   ‘img1一定存在

End Try

此主题相关图片如下：文件不存在--.png

以上代码还是会提示文件不存在