public override IList <GridViewRowInfo> GetChildRows(
GridViewRowInfo parentRow,
GridViewInfo view)
{
IList <GridViewRowInfo> gridViewRowInfoList;
IList <GridViewRowInfo> sourceCollection = gridViewRowInfoList = (IList <GridViewRowInfo>) new List <GridViewRowInfo>(64);
GridViewRowSourceNeededEventArgs args = new GridViewRowSourceNeededEventArgs(parentRow, this.Template, sourceCollection);
this.Template.EventDispatcher.RaiseEvent <GridViewRowSourceNeededEventArgs>(EventDispatcher.RowSourceNeeded, (object)this, args);
return(sourceCollection);
}
private void ExampleRadGridView_RowSourceNeeded(object sender, Telerik.WinControls.UI.GridViewRowSourceNeededEventArgs e)
{
if (e.ParentRow != null)
{
if (e.ParentRow.DataBoundItem is DataRowView rowViewData)
{
var _childDataTable = exampleChildTableLoad(); // Replace with call to populate a datatable from a query
var _dataRows = _childDataTable.Select($"ParentId = {rowViewData["Id"]}");
foreach (DataRow row in _dataRows)
{
GridViewRowInfo _newRowObj = e.Template.Rows.NewRow();
_newRowObj.Cells["Id"].Value = row["Id"];
_newRowObj.Cells["SampleNumber"].Value = row["SampleNumber"];
_newRowObj.Cells["ParentId"].Value = row["ParentId"];
e.SourceCollection.Add(_newRowObj);
}
}
}
}
