解决LayoutItem lable 太长的问题

     <Style TargetType="dxlc:LayoutItem">
            <Setter Property="AddColonToLabel" Value="True"/>
            <Setter Property="LabelTemplate">
                <Setter.Value>
                    <DataTemplate>
                        <TextBlock Text="{Binding}" MaxWidth="100" TextWrapping="Wrap"/>
                    </DataTemplate>
                </Setter.Value>
            </Setter>
        </Style>