0

嗨，通常它应该会自动工作，但它不会

XAML：

 <DataGrid AutoGenerateColumns="False" Width="350" IsReadOnly="True" 
                              ItemsSource="{Binding StichwortList}" >
           <DataGrid.Columns>
                <DataGridTextColumn Binding="{Binding DisplayName}" Width="350">
                      <DataGridTextColumn.Header>
                            <DockPanel Margin="0" Width="340" HorizontalAlignment="Stretch" LastChildFill="True">
                                  <TextBlock DockPanel.Dock="Left" Margin="0" Text="Name"/>
                                  <Button DockPanel.Dock="Right" Content="-" Margin="0" Width="23" Command="{Binding RemoveStichwortCommand}"/>
                                  <Button DockPanel.Dock="Right" Content="+" Margin="0" Width="23" Command="{Binding AddStichwortCommand}"/>
                                  <Label />
                            </DockPanel>
                      </DataGridTextColumn.Header>
                 </DataGridTextColumn>
           </DataGrid.Columns>
  </DataGrid>

相关代码：

        private RelayCommand _addStichwortCommand;
        public ICommand AddStichwortCommand
        {
            get { return _addStichwortCommand ?? (_addStichwortCommand = new RelayCommand(param => this.OnAddStichwort())); }
        }

        private void OnAddStichwort()
        {
            // some code
        }

        private RelayCommand _removeStichwortCommand;
        public ICommand RemoveStichwortCommand
        {
            get { return _removeStichwortCommand ?? (_removeStichwortCommand = new RelayCommand(param => this.OnRemoveStichwort())); }
        }
private void OnRemoveStichwort()
        {
           // some code
        }

我对该视图的其他绑定有效，并且我的命令绑定也可以正常工作

所以请任何人告诉我我的绑定有什么问题吗？

编辑

哦，我忘了

它都在一个包含所有属性和绑定和命令Usercontrol的Datacontext

灵魂：

DockPanel需要绑定他的和Datacontext需要一个名字Usercontrol DatacontextUsercontrol

x:Name="uc"

<DockPanel Margin="0" Width="340" HorizontalAlignment="Stretch" LastChildFill="True" DataContext="{Binding ElementName=uc, Path=DataContext}">
     <TextBlock DockPanel.Dock="Left" Margin="0" Text="Name"/>
     <Button DockPanel.Dock="Right" Content="-" Margin="0" Width="23" Command="{Binding RemoveStichwortCommand}"/>
      <Button DockPanel.Dock="Right" Content="+" Margin="0" Width="23" Command="{Binding AddStichwortCommand}"/>
      <Label />
</DockPanel>

如果上面的解决方案不起作用，你应该看看这个答案

4

1 回答 1

1

您必须UserControl在XAML中命名并在绑定中使用它。类似于以下代码：

<UserControl x:Name="uc" >
.
.
.
<Button DockPanel.Dock="Right" Content="-" Margin="0" Width="23" Command="{Binding RemoveStichwortCommand, ElementName=uc}"/>
<Button DockPanel.Dock="Right" Content="+" Margin="0" Width="23" Command="{Binding AddStichwortCommand, ElementName=uc}"/>

希望这有帮助。

于 2013-02-01T08:31:53.200 回答