[Solved] create grid columns programmatically

[bgoldca]

I have a grid that's declared in the ASPX and I want to create the columns in the codebehind. I think I'm doing exactly waht's in the documentation but all I get is an empty box displaying. Here's my code:

In the ASPX:

<radG:RadGrid ID="RadSummary" runat="server" AllowSorting="True" AutoGenerateColumns="false">

 

 

    <MasterTableView AutoGenerateColumns="false" AllowNaturalSort="False"></MasterTableView>

 

 

    <ClientSettings AllowColumnsReorder="true" ApplyStylesOnClient="False" EnablePostBackOnRowClick="false">

 

 

        <Selecting AllowRowSelect="false" />

 

 

    </ClientSettings>

 

 

</radG:RadGrid>

In the code-behind in the clicked event of a button I have:

GridBoundColumn

 

boundColumn = new GridBoundColumn();

 

RadSummary.MasterTableView.Columns.Add(boundColumn);

boundColumn.HeaderText = "Column 1;

 

 

RadSummary.DataBind();

 

I want this grid to display with no datarows - just the column headings, but when the event fires to add the columns nothing (visible) happens. What am I doing wrong - does the grid need to be bound to some datasource before it will display?

 

 

[Schlurk]

You could also attempt to do this initially with a DataTable, and then set this as the source of the grid (this might not be the alternative you are looking for but it's a way of approaching this). An example of this would be:

DataTable myTable = new DataTable();
myTable.Columns.Add("Column1");
DataRow myRow = myTable.NewRow();
myRow.ItemArray[0] = "Test";
myTable.Rows.Add(myRow);
RadGrid1.DataSource = myTable;

[bgoldca]

I may end up going the datatable route (it's looking like a good option right about now!). If I do that how can I set the column's display properties. I'm trying this now and the column(s) are now the right width and are justified incorrectly (a string is showing up left justified).

Thanks.

[Shinu]

Hi bgoldca,

Give a try with the following approach.

CS:

 protected void Button1_Click(object sender, EventArgs e)
    {

        GridBoundColumn boundColumn = new GridBoundColumn();
        RadSummary.MasterTableView.Columns.Add(boundColumn);
        boundColumn.HeaderText = "Column 1";

        //set the Grid DataSource
        RadSummary.DataSource = new string[] { };
        RadSummary.DataBind();

    }

Thanks
Shinu

[bgoldca]

Thank you! That worked.