How to get selected rows in the Child Grid of RadGridView for WinForms

Environment

Product Version	Product	Author
2024.4.1113	RadGridView for WinForms	Dinko Krastev

Description

When working with hierarchical RadGridView for WinForms, it's essential to identify the selected rows within the child grids programmatically. In the following KB article, we will demonstrate how to determine whether the rows in the SelectedRows collection are from the master or child template.

Solution

To access selected rows within a child grid of RadGridView, leverage the RadGridView.SelectedRows collection. This collection holds all selected rows when the SelectionMode is set to GridViewSelectionMode.FullRowSelect.

To specifically target selected rows in child grids, iterate over the SelectedRows collection and utilize the HierarchyLevel property of each row to determine its hierarchical level. The following code snippet demonstrates how to identify and work with selected rows at the child level (HierarchyLevel == 1):

• C#

foreach (GridViewRowInfo row in this.radGridView.SelectedRows)
{
    if (row.HierarchyLevel == 1)
    {
        // Implement the desired logic for selected child rows here
    }
}

This approach enables you to distinguish between selected rows in the main grid and those in child grids, facilitating precise manipulation or processing based on your application's requirements.