Ashish Kumar Mahajan

Dear Friends,

As working with GridView object in ASP.Net 3.5, i was facing a problem.

I have a gridview with some hidden column, here is my gridview structure:

<asp:boundfield visible=”False” datafield=”ID” />
<asp:boundfield datafield=”DOCNAME” headertext=”Name”>
<itemstyle horizontalalign=”Left”>
</asp:boundfield>
<asp:boundfield datafield=”VersionNumber” headertext=”Version”>
<itemstyle horizontalalign=”Center”>
</asp:boundfield>
<asp:boundfield visible=”False” datafield=”PDFFileName”>
<itemstyle horizontalalign=”Left”>
</asp:boundfield>
<asp:boundfield datafield=”intSequenceNumber” headertext=”Active”/>
<asp:checkboxfield datafield=”blnActive” headertext=”Active” />

As you can see I have Id and PDFFileName column hidden.

Now if i select some files and on postback i need those selected files and their Ids, i am getting blanks values for all the hidden cells.

This is how i was doing it:

Dim strIds As String = String.Empty

Dim strFiles As String = String.Empty

For Each drRow As GridViewRow In Me.gvHiddenColumn.Rows

strIds = strIds + drRow.Cells(pvt_GridColumn.ID).Text + “,”

strFiles = strFiles + drRow.Cells(pvt_GridColumn.PDFFileName).Text + “,”

Next

but i am getting ids and files balnks.

A simple solution for this problem is make the column hidden in the grid row bound event or after that, so i did it in prerender and it worked  fine.

Private Sub GridViewHiddenColumn_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender

Me.gvColumns.Columns(pvt_GridColumn.ID).Visible = False

Me.gvColumns.Columns(pvt_GridColumn.PDFFileName).Visible = False

End Sub

Happy Programming,

Thanks,

Ashish