BeforeOpenFile事件,这样写
If e.DataCol.name = "第八列" Then
e.Cancel = True
Dim img = getimage(e.FileName)
Dim frm As new windows.forms.form
frm.width = img.width
frm.height = img.height + 30
Dim picbox As new windows.forms.picturebox
picbox.image = img
picbox.dock = 5
frm.controls.add(picbox)
frm.show
End If