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TA贡献1998条经验 获得超6个赞
如果您只想移动整个列表并为每个创建一个磁贴Member,那么这是一种方法:
首先,您应该简化您的模板并将其放入 XAML。XAML 在处理任何类型的模板方面比背后的代码更有效
对于您的左侧主面板:
<ItemsControl x:Name="mainPanel" Grid.Column="0" ItemsSource="{Binding}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Background="#F0F0F0" AllowDrop="True" Drop="mainPanel_Drop">
<WrapPanel.ContextMenu>
<ContextMenu>
<MenuItem Click="MenuItem_Click" Header="Add Panel" />
</ContextMenu>
</WrapPanel.ContextMenu>
</WrapPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" Background="White" AllowDrop="True" Margin="15,15,0,10" Width="150" MinWidth="150" Height="150" MinHeight="150">
<Label Content="{Binding Name}"/>
<Label Content="{Binding ID}"/>
<Label Content="{Binding Address}"/>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
对于您的列表(没有太大变化)
<ListBox
Name="memberCollection"
Grid.Column="1"
Width="150"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
ItemsSource="{Binding}"
PreviewMouseLeftButtonDown="memberCollection_PreviewMouseLeftButtonDown">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Label Name="memberName" Content="{Binding Name}" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
我添加了两个 ObservableCollection 来管理数据
ObservableCollection<Member> member = new ObservableCollection<Member>();
ObservableCollection<Member> mainPanelMembers = new ObservableCollection<Member>();
public MainWindow()
{
InitializeComponent();
member.Add(new Member { Name = "Karthick", ID = "20011", Address = "10, MainRoad, Chennai" });
member.Add(new Member { Name = "Suresh", ID = "20012", Address = "11, MainRoad, Madurai" });
member.Add(new Member { Name = "Arun", ID = "20013", Address = "12, MainRoad, Selam" });
member.Add(new Member { Name = "Gokul", ID = "20014", Address = "13, MainRoad, Coimbature" });
member.Add(new Member { Name = "Vishnu", ID = "20015", Address = "14, MainRoad, Goa" });
memberCollection.DataContext = member;
mainPanel.DataContext = mainPanelMembers;
}
然后,创建一个新的 Tile 就简单多了:
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
mainPanelMembers.Add(new Member());
}
如果要复制整个列表,则必须将整个 ObservableCollection 交给 DragDrop 管理器:
private void memberCollection_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
object collectionDataContext = memberCollection.DataContext;
if (collectionDataContext != null)
{
DataObject dragData = new DataObject("DataContext", collectionDataContext);
DragDrop.DoDragDrop(memberCollection, dragData, DragDropEffects.Move);
}
}
而当你放下它时,你可以简单地一一添加成员。您也可以之前清除集合(但我没有):
private void mainPanel_Drop(object sender, DragEventArgs e)
{
DataObject item = e.Data as DataObject;
object listItem = item.GetData("DataContext") as IEnumerable<Member>;
if (listItem != null)
{
foreach (Member member in (IEnumerable<Member>)listItem)
{
((ObservableCollection<Member>)mainPanel.DataContext).Add(member);
}
}
}
我不确定我是否完全理解你想要什么......我仍然不知道你是如何使用 Tile 创建的。如果您需要做一些不同的事情,请告诉我。
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