ItemControl绑定数据没效果

ItemControl绑定数据没有效果
在XAML界面上我使用一个ItemControl作为数据容器，然后在它的数据模板里使用了3个控件，代码如下：

            <Style x:Key="GuestTilePanelStyle" TargetType="ItemsControl">

                <Setter Property="xc:xTilePanel.ItemHeight" Value="30" />

                <Setter Property="xc:xTilePanel.ItemWidth" Value="120" />

                <Setter Property="ItemsControl.ItemsPanel">

                    <Setter.Value>

                        <ItemsPanelTemplate>

                            <xc:xTilePanel AnimatesNewItem="True" Attraction="2.0" Dampening="0.40" Variation="1.00" />

                        </ItemsPanelTemplate>

                    </Setter.Value>

                </Setter>

                <Setter Property="ItemsControl.ItemTemplate">

                    <Setter.Value>

                        <DataTemplate>

                            <Grid x:Name="gProgressContainer" Height="30">

                                <Grid.ColumnDefinitions>

                                    <ColumnDefinition Width="30" />

                                    <ColumnDefinition Width="*" />

                                    <ColumnDefinition Width="20" />

                                </Grid.ColumnDefinitions>

                                <xc:xSprocket x:Name="skProgress" Grid.Column="0" Width="30" Height="30" TickColor="#FF02AA1A" />