GridView Row Expanding Collapsing

[Ahmed]

I have gridview and i want when i expand specific row, all other rows are collapsed
I do not want two rows to be expanded at the same time

[Dimitar]

Hi Ahmed,

You can use the ChildViewExpanding event and collapse the expanded rows:

private void RadGridView1_ChildViewExpanding(object sender, ChildViewExpandingEventArgs e)
{
    foreach (var item in radGridView1.Rows)
    {
        if (item != e.ParentRow && item.IsExpanded)
        {
            item.IsExpanded = false;
        }
    }
}

I hope this will be useful. Let me know if you have additional questions.

Regards,
Dimitar
Progress Telerik