[Solved] Radgrid expand/collapse rows option

[Harini]

Hi,
I using VS2012. I am using a telerik radgrid and binding the grid to customer information in a dataset(single dataset). A single customer can have many records in the dataset. Hence in my grid i want to have my first column as a expand-collapse button '(+)' column. If a single customer is getting repeated in the dataset (which i get to know from the 'customer name' column and thier unique 'customer ID' column in the dataset), i want to  display the (+) expand button, on click of expand i want to display the other records for this same customer, and on clicking collapse(-) button i want to show only one record for that customer. If the customer name is unique in the dataset then i dont want to display the expand-collapse button in the first column. Is there any way to do this ? Kindly help. Thanks in Advance.

[Marin]

Hello,

 You will require custom server-side code to achieve this requirement. For example you can use GridButtonColumn or GridTemplateColumn to show the expand / collapse buttons in the grid. Then on button click you fire a custom command and rebind the control to show the new data. Here is a short sample:

<Columns>
                        <telerik:GridButtonColumn ButtonType="ImageButton" CommandName="customExpandCollapseCommand" ImageUrl="expandButton.jpg"></telerik:GridButtonColumn>
                    </Columns>

protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)
    {
        if (e.CommandName=="customExpandCollapseCommand")
        {
            RadGrid1.DataSource = newDataSource;
            RadGrid1.Rebind();
        }
    }

Regards,
Marin
the Telerik team