Subroutine /helper function error

  • Thread starter Thread starter Chumley the Walrus
  • Start date Start date
C

Chumley the Walrus

I'm using a subroutine/helper function display an image (the image
would be displayed inside a datalist control's <itemtemplate> )

<script language="VB" runat="server">
Public Sub checkforimg(ByVal Imagesubprod1 As String)
If Imagesubprod1 <> "" then
response.write(Imagesubprod1)
Else
response.write("nbsp;")
End If
End Sub
</script>

.... but I get an "Overload resolution failed because no accessible
'ToString' can be called with these arguments:" error when it comes
time to check for the image as follows.

<%# checkforimg(DataBinder.Eval(Container.DataItem,
"Imagesubprod1"))%>

When I form the header for the sub as follows:
Public Sub checkforimg(ByVal Imagesubprod1 As String) As string

...i get an "Expected end of statement " error on this line
 
I'm using a subroutine/helper function display an image (the image
would be displayed inside a datalist control's <itemtemplate> )

<script language="VB" runat="server">
Public Sub checkforimg(ByVal Imagesubprod1 As String)
If Imagesubprod1 <> "" then
response.write(Imagesubprod1)
Else
response.write("nbsp;")
End If
End Sub
</script>

... but I get an "Overload resolution failed because no accessible
'ToString' can be called with these arguments:" error when it comes
time to check for the image as follows.

<%# checkforimg(DataBinder.Eval(Container.DataItem,
"Imagesubprod1"))%>
Click to expand...

looks like it's having trouble converting the value you're passing in thru
databinding to a String. If you have Option Strict on, you might try
either casting the value in the databinding statement to a string before
passing it in, or change the parameter in your method above to an Object
and then cast it inside the function itself.

Otherwise verify the value in your datasource is truly capable of being a
string.
 
IE does not support inline images, so you code should be writing something
like: <img src=url> not the binary image.

-- bruce (sqlwork.com)
 
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