To illustrate MultiSelectComboBox, I am using some forum posted code.
for comboBox i am using
<telerik:RadComboBoxSelectedIndex="0"x:Name="MembersComboBox" ItemsSource="{Binding Members}" ItemTemplate="{StaticResource MultiSelectionComboBoxItemTemplate}" Visibility="{Binding CanViewOtherUserTrendingConfiguration}" SelectionBoxTemplate="{StaticResource MultiSelectionComboBoxSelectionBoxTemplate}" ToolTip="{Binding SelectedMembersText}" Width="150"Height="20"/><telerik:RadDocumentPanex:Class="MainChart.MainChartView"...>and datatemplate MultiSelectionComboBoxSelectionBoxTemplate is defined as
<DataTemplatex:Key="MultiSelectionComboBoxSelectionBoxTemplate"> <TextBlockText="{Binding RelativeSource={RelativeSource AncestorType={x:Type telerik:RadDocumentPane}, Mode=FindAncestor}, Path=DataContext.SelectedMembersText}"/></DataTemplate>my question is when i check the checkboxes in the comboBox, it updates the tooltip of combo box, which is bind to viewModel's property SelectedMembersText, but it do not updates the textlbock inside the SelectionBoxTemplate. I am sure i am making some mistake in doing dataBinding. please help me fixing this issue, as i have already applied all possible ways(in my knowledge) of binding textBlock to the field.