wpf SplitButton



SplitButton该控件除了本身Button 的功能外，还具有下拉菜单的功能，能够在按键右側加入下拉菜单控件：

<SplitButton Content="..." Width="80" Height="22"  Grid.Column="2"  Margin="10,0,2,0"                      


                         Command="{Binding SelectFileCommand}"

                         VerticalAlignment="Center" HorizontalAlignment="Center">

                <SplitButton.DropDownContent>

                    <Button Content="DownLoad" Command="{Binding DownLoadCommand}" />

                </SplitButton.DropDownContent>