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George Padvorac
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Alternating background style for the XamComboEditor
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How can I create a style for the XamComboEditor so it has alternating backbround like the XamDataGrid?

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  • 54937
    Suggested Answer
    Offline posted

    Another option if you are using .net 3.5 sp1 or later is to provide a custom style for the contained ComboBox and set its AlternationCount and use the AlternationIndex on the comboboxitem's style. e.g.

    <igEditors:XamComboEditor>
        <igEditors:XamComboEditor.ComboBoxStyle>
            <Style TargetType="ComboBox">
                <Style.Resources>
                    <AlternationConverter x:Key="BackgroundConverter">
                        <SolidColorBrush Color="Blue" />
                        <SolidColorBrush Color="Red" />
                    </AlternationConverter>
     
                    <Style TargetType="ComboBoxItem" x:Key="alternatingItem">
                        <Setter Property="Background" 
                            Value="{Binding RelativeSource={RelativeSource Self},
                            Path=(ItemsControl.AlternationIndex),
                            Converter={StaticResource BackgroundConverter}}"/>
                    </Style>
                </Style.Resources>
                
                <Setter Property="ItemContainerStyle" Value="{StaticResource alternatingItem}" />
                <Setter Property="AlternationCount" Value="2" />
            </Style>
        </igEditors:XamComboEditor.ComboBoxStyle>
        
        <igEditors:XamComboEditor.ItemsProvider>
            <igEditors:ComboBoxItemsProvider>
                <sys:String>ABC</sys:String>
                <sys:String>DEF</sys:String>
                <sys:String>GHI</sys:String>
                <sys:String>JKL</sys:String>
            </igEditors:ComboBoxItemsProvider>
        </igEditors:XamComboEditor.ItemsProvider>
    </igEditors:XamComboEditor>

     

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