Comments on: Custom header row in .NET datagrid?

Question: Custom header row in .NET datagrid?

TimeTravelSpeed — Thu, 17 Apr 2008 13:39:31 -0800

How do I insert a row of identical drop-down lists into the top of my .NET datagrid? I have a DataGrid whose source is an excel spreadsheet. My GUI needs to allow a user to select an option from a drop-down above each column. I'd like this row to be a part of the grid so that everything lines up all pretty-like.

The best option I've found is to manually create all the rows and columns and bind that to the grid. Another option was to use a repeater of datalists instead. Is there a simpler or better way? (I'm using C#)

By: TimeTravelSpeed

TimeTravelSpeed — Thu, 17 Apr 2008 14:02:38 -0800

I should clarify that the loaded spreadsheet is different every single time. The solution needs to dynamically apply to spreadsheets of arbitrary size and with arbitrary column names.

By: sanko

sanko — Thu, 17 Apr 2008 16:42:40 -0800

You'll have to use a gridview for this, but it should work (adds a dropdown after the header row.)



  protected void foo_DataBound1(object sender, EventArgs e)

    {



    

        GridViewRow row = new GridViewRow(0, 0, DataControlRowType.DataRow, DataControlRowState.Normal);

        for (int i=0; i<2>
        {

            DropDownList ddl = new DropDownList();

            ddl.Items.Add("foo");

            ddl.Items.Add("bar");

            TableCell tc = new TableCell();

            tc.Controls.Add(ddl);

            row.Cells.Add(tc);

        }



        (sender as GridView).Controls[0].Controls.AddAt(1, row);

       



    }

By: sanko

sanko — Thu, 17 Apr 2008 16:47:47 -0800

 for (int i=0; i<2>  {

should read

for (int i=0; i<2; i++) { // need to determine col. ct... Columns.Count returns 0

By: TimeTravelSpeed

TimeTravelSpeed — Thu, 17 Apr 2008 19:40:06 -0800

Thanks sanko! I'll try that when I'm back at work.

By: TimeTravelSpeed

TimeTravelSpeed — Mon, 21 Apr 2008 15:02:08 -0800

Perfect sanko. Worked like a charm. Thank you very much!