zoukankan      html  css  js  c++  java
  • GridView on Selection Changed

    GridView中有两个事件分别是:gvSource_SelectionChanged 和gvSource_ItemClick。

    1. 若你设置了IsItemClickEnabled="True", 当你单击GridView里边的一个item时, gvSource_ItemClick事件会被触发。此时鼠标左键单击只是单击而不是选择。

    2. 相反你如此设置IsItemClickEnabled="False", 当你单击GridView里边的一个item时, 此时鼠标左键是选择, 所以gvSource_SelectionChanged会被执行而gvSource_ItemClick不会被执行。

    我们再分别看看如何在两个事件中获得GridView里边的内容:

              <GridView x:Name="gvSource" HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,0,0,20" IsItemClickEnabled="False" ItemClick="gvSource_ItemClick" SelectionChanged="gvSource_SelectionChanged" >
                    <GridView.GroupStyle>
                        <GroupStyle ContainerStyle="{StaticResource HorizontalScrollViewerStyle}"/>                   
                    </GridView.GroupStyle>
                    <GridViewItem >
                        <Image x:Name="firstImage" Source="Assets/Catoon/catoon (1).jpg" Height="100" Width="100"/>
                    </GridViewItem>
                   </GridView>

    请看我们如何在两个事件中分别获得这个Image:

         private void gvSource_ItemClick(object sender, ItemClickEventArgs e)
            {
                  var imageSource = ((Image)e.ClickedItem).Source;
            }
    private void gvSource_SelectionChanged(object sender, SelectionChangedEventArgs e)
            {
                var selectedItems =e.AddedItems;
                if (selectedItems.Count != 1)
                    return;
                foreach (var item in selectedItems)
                {
                    GridViewItem gvItem = (GridViewItem)item ;
                    var image=gvItem.Content as Image;
                 }
               }
  • 相关阅读:
    Dynamics 365/CRM 实体设计技巧
    Dynamics 365/CRM 保存之后触发onchange
    编写C#程序,计算去除最大值和最小值之后的平均值
    Dynamics 365 WebResourceUtility 工具更新
    No sandboxworker process or sandbox hosts are currently avaliable
    C#
    Dynamics CRM 365 and Azure Service Bus – Queue
    双for循环
    java switch 的练习
    java__if_else 的练习
  • 原文地址:https://www.cnblogs.com/qixue/p/2858811.html
Copyright © 2011-2022 走看看