Question

使用带有绑定的XAML listview / gridview我使用linq查询和C＃代码填充网格：

                AdventureWorkEntities awDatabase = new AdventureWorkEntities();
                var products = from p in awDatabase.Products
                               from i in awDatabase.ProductInventories
                               where p.ProductID == i.ProductID && p.ListPrice > 0
                               && p.Name.Contains(search.Text.Trim())
                               select new
                               {
                                   p.ListPrice,
                                   p.Name,
                                   p.ProductNumber,
                                   p.DaysToManufacture,
                                   i.Quantity
                               };

                IListSource query = (IListSource)products;
                ProductsList.ItemsSource = query.GetList();

我注意到所选项目的双击事件。双击行并将该行转移到其下的另一个网格中的语法是什么？

我想通过双击一个网格中的选定项目，我希望能够从一个网格中将一行添加到另一个网格。

编辑：XAML代码：

 <ListView Name="ProductsList"  IsSynchronizedWithCurrentItem="True" DataContext="{Binding}" 
                  Margin="6,76,6,220" Width="726" MouseDoubleClick="ProductsList_MouseDoubleClick">
                <ListView.View>
                    <GridView>
                        <GridView.Columns>
                            <GridViewColumn  Width="85" Header="Product Number"
                                            DisplayMemberBinding="{Binding Path=ProductNumber}"/>
                            <GridViewColumn Width="225" Header="Name"
                                            DisplayMemberBinding="{Binding Path=Name}"/>
                            <GridViewColumn Width="135" Header="Days To Manufacture"
                                                DisplayMemberBinding="{Binding Path=DaysToManufacture}"/>
                            <GridViewColumn Width="75" Header="Quantity"
                                                DisplayMemberBinding="{Binding Path=Quantity}"/>
                            <GridViewColumn Width="75" Header="List Price"
                                                DisplayMemberBinding="{Binding Path=ListPrice}"/>
                        </GridView.Columns>
                    </GridView>
                </ListView.View>
        </ListView>

我的尝试：

        private void ProductsList_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        //code to place the contents of top grid to bottome grid

        List<IQueryable> selectedContents = new List<IQueryable>();
        selectedContents.Add((IQueryable)ProductsList.SelectedValue);
        IListSource query = (IListSource)selectedContents;
        OrderContents.ItemsSource= query.GetList();
    }

Answer 1

您需要创建实体的Observable Collection ...并在Double click事件中从listView获取所选实体并将所选实体添加到该Observable Collection中并将该集合与第二个listview绑定....

Answer 2

我对语法缺乏了解，使我无法弄清楚这一句话。

        private void ProductsList_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        //moves items from top grid to bottom grid
        OrderContents.Items.Add(ProductsList.SelectedValue);   
    }

如何从listview / gridview获取数据并填充另一个listview / gridview？

2 个答案: