WPF Datagrid:如何通过鼠标单击列标题来清除列排序？

<DataGrid x:Name="myDataGrid" ItemsSource="{Binding YourDataCollection}">
    <!-- 列定义 -->
</DataGrid>

private void DataGridColumnHeader_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
    DataGridColumnHeader columnHeader = sender as DataGridColumnHeader;
    if (columnHeader != null)
    {
        // 清除列排序
        columnHeader.Column.SortDirection = null;
    }
}

<DataGrid.ColumnHeaderStyle>
    <Style TargetType="DataGridColumnHeader">
        <EventSetter Event="MouseLeftButtonUp" Handler="DataGridColumnHeader_MouseLeftButtonUp"/>
    </Style>
</DataGrid.ColumnHeaderStyle>