I have a
RadGridView that is bound to an observable collection of one of my classes. I have 2 columns bound to a
bool DataMember and a converter that displays one image if true and another if false. For whatever reason, the default sorting doesn't work, so I tried to implement the custom sorting event handler. Upon clicking the column header, the sorting event doesn't get fired. I have
IsSortable and
IsCustomSortingEnabled properties set to
True.
Here is an example of the XAML:
Here is my sorting event:
protected void OnCreditPolicyGridViewSorting(object sender, Telerik.Windows.Controls.GridViewSortingEventArgs e)
{
var cpData = e.DataControl.ItemsSource as IEnumerable<CreditPolicyData>;
if (cpData == null)
{
e.Cancel = true;
return;
}
var column = e.Column as Telerik.Windows.Controls.GridViewDataColumn;
var columnIsPWL = column.GetDataMemberName() == "IsOnPotentialWatchList";
var columnIsWL = column.GetDataMemberName() == "IsOnWatchList";
if (columnIsPWL || columnIsWL)
{
if (e.OldSortingState == Telerik.Windows.Controls.SortingState.None)
{
e.NewSortingState = Telerik.Windows.Controls.SortingState.Ascending;
if (columnIsPWL)
cpData = cpData.OrderBy(cp => cp.IsOnPotentialWatchList);
else if (columnIsWL)
cpData = cpData.OrderBy(cp => cp.IsOnWatchList);
}
else if (e.OldSortingState == Telerik.Windows.Controls.SortingState.Ascending)
{
e.NewSortingState = Telerik.Windows.Controls.SortingState.Descending;
if (columnIsPWL)
cpData = cpData.OrderByDescending(cp => cp.IsOnPotentialWatchList);
else if (columnIsWL)
cpData = cpData.OrderByDescending(cp => cp.IsOnWatchList);
}
else
{
e.NewSortingState = Telerik.Windows.Controls.SortingState.None;
cpData = cpData.OrderBy(cp => cp.SalesmanNumber).ThenBy(cp => cp.CapisNumber);
}
e.DataControl.ItemsSource = cpData.ToObservableCollection();
e.Cancel = true;
}
}