ASP.NET

// bind the grid
DataTable dt = GetMyData();
MyDataGrid.DataSource = dt;
MyDataGrid.DataBind();

// inspect the table for the number of columns
int numColumns = dt.Columns.Count;

void MyDataBound(Object o, EventArgs e)
{
    // add a special heading at the top of the gridview table;
    // assumes gv is the id of the gridview
    
    Table t = gv.Controls[0] as Table
    if (t != null)
    {
        GridViewRow heading = new GridViewRow(0, -1
                      , DataControlRowType.Header
                      , DataControlRowState.Normal
                      );

        // add cell(s) to the heading row                      
        // in this example, I'm just adding one that will span
        // all the columns of the row
        
        TableCell cell = New TableCell();
        cell.Text = "My Spanning Heading";
        cell.ColumnSpan = gv.Rows(0).Cells.Count;
        
        // make it the same heading style as the gridview
        cell.MergeStyle(gv.HeaderStyle);
        
        // add it to the new heading row
        heading.Cells.Add(cell);
        
        // and add the new heading row to the top of the gridview
        t.Rows.AddAt(0, heading);
    }   
}

<asp:GridView ID="gv" runat="server"
              OnDataBound="MyDataBound" 
              />

!..Web Guru..! wrote:

Most of these are commercial and very difficult to use.