Question

I encountered a problem in Gridview, I cannot merge the headers if the Gridview has no record, but if the Gridview contain a record, the headers are merging.

Here is my codes that I used to merge the headers in the Gridview

protected void grdWorkExperience_RowCreated(object sender, GridViewRowEventArgs e)
    {

        if (e.Row.RowType == DataControlRowType.Header)
        {
            GridView oGridView = (GridView)sender;
            GridViewRow oGridViewRow = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Insert);
            TableCell oTableCell = new TableCell();

            oTableCell.Text = string.Empty;
            oTableCell.ColumnSpan = 2;
            oTableCell.BorderColor = System.Drawing.Color.White;
            oGridViewRow.Cells.Add(oTableCell);

            oTableCell = new TableCell();
            oTableCell.Text = "Inclusive Dates(mm/dd/yyyy)";
            oTableCell.ColumnSpan = 2;
            oTableCell.Font.Bold = true;
            oTableCell.Font.Size = 9;
            oTableCell.Font.Name = "Verdana";
            oTableCell.HorizontalAlign = HorizontalAlign.Center;
            oTableCell.BackColor = System.Drawing.Color.FromArgb(0x33, 0x66, 0xCC);
            oTableCell.ForeColor = System.Drawing.Color.White;
            oTableCell.BorderColor = System.Drawing.Color.Gray;
            oGridViewRow.Cells.Add(oTableCell);

            oTableCell = new TableCell();
            oTableCell.BorderColor = System.Drawing.Color.White;
            oTableCell.ColumnSpan = 13;
            oGridViewRow.Cells.Add(oTableCell);

            oGridView.Controls[0].Controls.AddAt(0, oGridViewRow);

        }
    }

I placed that function in onRowCreated event of Gridview

What should I do to merge the Headers even if the Gridview has no record?

Answer 1

Move the code from OnRowCreated event to Load event of the Window/Control/Page