有没有好的代码示例展示使用Caliburn或Caliburn Micro框架在DataGrid项中路由操作?
有没有好的代码示例展示使用Caliburn或Caliburn Micro框架在DataGrid项中路由操作?
这个示例为数据网格中的每一行附加了一个操作,该操作由整个视图的数据上下文即viewmodel处理。它是用Micro构建的,但语法相同。它不使用基于约定的数据绑定。
相关部分的视图如下:
<sdk:DataGrid ItemsSource="{Binding Source}"
AutoGenerateColumns="False">
<sdk:DataGrid.Columns>
<sdk:DataGridTemplateColumn Header="Action">
<sdk:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button Content="Do!"
cm:Message.Attach="Remove($dataContext)" />
</DataTemplate>
</sdk:DataGridTemplateColumn.CellTemplate>
</sdk:DataGridTemplateColumn>
<sdk:DataGridTextColumn Binding="{Binding Text}" />
<sdk:DataGridTextColumn Binding="{Binding More}" />
<sdk:DataGridTextColumn Binding="{Binding Stuff}" />
</sdk:DataGrid.Columns>
</sdk:DataGrid>
对应的视图模型如下:
public class ShellViewModel : IShell
{
public ShellViewModel()
{
Source = new ObservableCollection<MyRow>(
new[]
{
new MyRow {Text = "A1", More = "B", Stuff = "C"},
new MyRow {Text = "A2", More = "B", Stuff = "C"},
new MyRow {Text = "A3", More = "B", Stuff = "C"},
new MyRow {Text = "A4", More = "B", Stuff = "C"},
new MyRow {Text = "A5", More = "B", Stuff = "C"},
}
);
}
public void Remove(MyRow row)
{
Source.Remove(row);
}
public ObservableCollection<MyRow> Source { get; set; }
}
public class MyRow
{
public string Text { get; set; }
public string More { get; set; }
public string Stuff { get; set; }
}
这里讨论了特殊参数 $dataContext: http://caliburn.codeplex.com/wikipage?title=Parameters&referringTitle=Documentation