You should do that in GridView's RowDataBound
event which is triggered for every GridViewRow
after it was databound.
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
e.Row.Cells[0].Text = "Date";
}
}
or you can set AutogenerateColumns
to false
and add the columns declaratively on aspx:
<asp:gridview id="GridView1"
onrowdatabound="GridView1_RowDataBound"
autogeneratecolumns="False"
emptydatatext="No data available."
runat="server">
<Columns>
<asp:BoundField DataField="DateField" HeaderText="Date"
SortExpression="DateField" />
</Columns>
</asp:gridview>