wpf 如何设置DataGridCell 宽为表格的列宽
<UserControl.Resources>
<Style x:Key ="GDStyle" TargetType="DataGridCell">
<Setter Property="HorizontalAlignment" Value="Center"></Setter>
<Setter Property ="VerticalAlignment" Value="Center"></Setter>
<Style.Resources>
<SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}" Color="LightBlue"/>
</Style.Resources>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Foreground" Value="White"/>
<Setter Property="BorderBrush" Value="#104E8B"/>
<Setter Property="Background" Value="#104E8B"/>
</Trigger>
<Trigger Property="IsFocused" Value="true">
<Setter Property="BorderThickness" Value="0"/>
</Trigger>
</Style.Triggers>
</Style>
</UserControl.Resources>
请问我设置了 DataGridCell 的颜色和触发器,但还需要设置 DataGridCell 的Width为 DataGrid的Column的Width方便鼠标选中,需要怎么Binding呢

如图所示 DataGridCell 自适应为了内容大小,但我想要让它填充满