Error in Asp.Net data grid column sort

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Hi,

I have a web grid with 5 columns designed like
<asp:BoundField DataField="COUNTRY_NAME" HeaderText="Country Name" SortExpression="COUNTRY_NAME" />

i am trying to add sort icons whenever user clicks on column header on sorting event.

int i =0;
foreach (DataGridColumn col in GridView.Columns)
{
if (col.SortExpression == e.SortExpression)
CustomersGridView.Columns[i].HeaderStyle.CssClass = "gridHeaderSort";
i++;
}

while doing am getting error :
Unable to cast object of type 'System.Web.UI.WebControls.BoundField' to type 'System.Web.UI.WebControls.DataGridColumn'.

Please Help.

Regards, Kiruba

Posted 18-Aug-14 9:01am

kirubakaran3@yahoo.co.in

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Richard Deeming · Answer 1 · 2014-08-18T10:23:00

Solution 1

You're using the DataGrid control[^], which uses BoundColumn[^] instead of BoundField[^].

If you want to continue using the DataGrid class, you'll need to replace <asp:BoundField .../> with <BoundColumn ...>. Alternatively, you could switch to using the newer GridView control[^] instead.

Posted 18-Aug-14 10:23am

Richard Deeming