setting the value for columns in textbox

hi!!!!!!!!!!!11
I have <asp:textbox> control , I need to pass the value of
the columns dynamically, so i did this way
<asp:textbox id="test1" name="test1"
columns="<%=setColumn%>" runat="server"
what happens it throws me a error stating that
is not a valid value for int32

I tried to convert the value to Convert.toInt32(), but still it is
throwing the same error

any help would be appreciated

thanks
dharaniWhat is the implementation of setColumn?

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"Pattabi" <dpattabi@.saipeople.com> wrote in message
news:c0d5f7f0.0311131350.41c78bc9@.posting.google.c om...
> hi!!!!!!!!!!!11
> I have <asp:textbox> control , I need to pass the value of
> the columns dynamically, so i did this way
> <asp:textbox id="test1" name="test1"
> columns="<%=setColumn%>" runat="server">
> what happens it throws me a error stating that
> is not a valid value for int32
> I tried to convert the value to Convert.toInt32(), but still it is
> throwing the same error
> any help would be appreciated
>
> thanks
> dharani