【原创】Silverlight DataGrid双击事件的分析 完整分析 代码与示例

 <sdk:DataGrid Grid.Row="1" Name="dataGrid1" AutoGenerateColumns="False" IsReadOnly="True" ColumnWidth="*" ItemsSource="{Binding SearchResult}"
                          MouseLeftButtonUp="dataGrid_MouseLeftButtonUp" CopyingRowClipboardContent="dataGrid1_CopyingRowClipboardContent">
                <sdk:DataGrid.Columns>
                    <sdk:DataGridTextColumn Header="咨询编号" Binding="{Binding Code}"/> 
                </sdk:DataGrid.Columns>
</sdk:DataGrid>

  DateTime lastClickTime = DateTime.Now;
        object lastClickItem;
        public delegate void DataItemEventHandler(object sender, DataItemDoubleClickArgs fe);
        public event DataItemEventHandler DataItemDoubleClick;

 /// <summary>
        /// 模拟鼠标双击DataGridItem效果
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void dataGrid_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            var eventSource = e.OriginalSource;
            var now = DateTime.Now;
            var ts = now.Subtract(lastClickTime);
            var diff = ts.TotalMilliseconds;
            lastClickTime = now;
            //若两次双击时差小于250ms且点击的是同一项目则激发事件
            var nowClickItem = dataGrid1.SelectedItem;
            if (diff < 250 && lastClickItem == nowClickItem)
            {
                //抛出datagrid双击事件
                OnDataItemDoubleClick(nowClickItem,
                    new DataItemDoubleClickArgs(eventSource));
            }
            lastClickItem = nowClickItem;
        }
        //模拟双击
        protected virtual void OnDataItemDoubleClick(object sender, DataItemDoubleClickArgs e)
        {
            if (DataItemDoubleClick != null)
                DataItemDoubleClick(sender, e);
        }