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RadCombobox inside the telerik gridview not displaying the SelectedValue

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ComboBox
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Mahesh
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Mahesh asked on 02 Dec 2019, 01:59 PM

Hi,
I've a RadComboBox inside the RadGridView. When loading the tab very first time data inside the combobox is not displaying.

We have data in selectedvalue and in itemsource collection, but it is not displaying. Combobox is in editable mode.
<telerik:RadComboBox x:Name="ComboBox" Tag="{Binding SeqNo,UpdateSourceTrigger=PropertyChanged}" Style="{StaticResource TextSearchStyle}" 
           ItemsSource="{Binding DataContext.List, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type UserControl}, Mode=FindAncestor}}"
                SelectedValue="{Binding Code, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" SelectedValuePath="Code"  IsEditable="True" ItemTemplate="{StaticResource ComboBoxItem}" ItemContainerStyle="{StaticResource ComboBoxItemStyle}"
                CanKeyboardNavigationSelectItems="True" TextSearchMode="Contains" IsFilteringEnabled="True"  OpenDropDownOnFocus="False" GotFocus="ComboBox_GotFocus" LostFocus="ComboBox_LostFocus" DropDownClosed="ComboBox_DropDownClosed"  GotKeyboardFocus="ComboBox_GotKeyboardFocus"
                IsTextSearchEnabled="True" KeyDown="ComboBox_KeyDown" PreviewKeyDown="ComboBox_KeyUp" CanAutocompleteSelectItems="False" TabIndex="7" >
                                                    <telerik:RadComboBox.ToolTip>
                                                        <StackPanel Height="Auto" Width="Auto" MaxWidth="300" Background="#F2F2F2">
                                                            <TextBlock Text="{Binding ShortDescription}" Style="{StaticResource ToolTipCodesDescriptionTextBlock}"/>
                                                        </StackPanel>
                                                    </telerik:RadComboBox.ToolTip>
                                                    <i:Interaction.Triggers>
                                                        <i:EventTrigger EventName="GotFocus">
                                                            <i:InvokeCommandAction Command="{Binding DataContext.LoadPopUpCommand, RelativeSource={RelativeSource AncestorType={x:Type UserControl}, Mode=FindAncestor}}" CommandParameter="{Binding DataContext, ElementName=ComboBox}" />
                                                        </i:EventTrigger>
                                                        <i:EventTrigger EventName="DropDownClosed">
                                                            <i:InvokeCommandAction Command="{Binding DataContext.CPTSelectionChanged, RelativeSource={RelativeSource AncestorType={x:Type UserControl}, Mode=FindAncestor}}" 
                CommandParameter="{Binding DataContext, ElementName=CPTComboBox}"/>
                                                        </i:EventTrigger>
                                                        <i:EventTrigger EventName="LostFocus">
                                                            <i:InvokeCommandAction Command="{Binding DataContext.ComboLostFocusCommand, RelativeSource={RelativeSource AncestorType={x:Type UserControl}, Mode=FindAncestor}}" CommandParameter="{Binding DataContext, ElementName=ComboBox}" />
                                                        </i:EventTrigger>
                                                    </i:Interaction.Triggers>
                                                </telerik:RadComboBox>
Regards,
Mahesh

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Dinko | Tech Support Engineer
Telerik team
answered on 05 Dec 2019, 09:43 AM

Hi,

This post seems to be duplicate to your other one posted in this forum thread. I already post a reply in the other forum thread. In order to avoid duplication, let's continue there.

Regards,
Dinko
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Dinko | Tech Support Engineer
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