WPF DataGrid点击最后一行时，垂直滚动条下拉

为DataGrid 单元格样式追加如下

<DataGrid.Resources>
　　<Style x:Key="ExDataGridCellStyle1" TargetType="DataGridCell" BasedOn="{StaticResource DataGridCellStyle1}">
　　　　<EventSetter Event="RequestBringIntoView" Handler="DataGridCell_RequestBringIntoView"/>
　　</Style>
</DataGrid.Resources>

事件实现

private void DataGridCell_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
　　e.Handled = true;
}