.net 为数据网格中的每一行添加删除按钮
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原文地址: http://stackoverflow.com/questions/10892233/
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Add delete button for every row in datagrid
提问by RATHI
how to add a delete button for every row in a data grid (contains two fields) in WPF. while datagrid itemsource is
如何在 WPF 中为数据网格（包含两个字段）中的每一行添加删除按钮。而数据网格项源是
ObservableCollection<Result>
and
和
public class Result : INotifyPropertyChanged
{
public string FriendlyName { get; set; }
public string Id { get; set; }
public Result(string name, string id)
{
this.FriendlyName = name;
this.Id = id;
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
void OnPropertyChanged(string property)
{
if (this.PropertyChanged != null)
{
this.PropertyChanged(this, new PropertyChangedEventArgs(property));
}
}
#endregion
}
}
}
回答by Fredrik Hedblad
You can add a DataGridTemplateColumnand add a Buttonto its CellTemplate. Then use the built in ApplicationCommands.Deleteor your own ICommandfor the Button
您可以添加 a 并将 aDataGridTemplateColumn添加Button到其CellTemplate. 然后使用内置的ApplicationCommands.Delete或您自己ICommand的Button
<DataGrid ItemsSource="{Binding Results}"
AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTextColumn Header="FriendlyName"
Binding="{Binding FriendlyName}"/>
<DataGridTextColumn Header="Id"
Binding="{Binding Id}"/>
<DataGridTemplateColumn Header="Delete">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button Content="Delete"
Command="Delete"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
Update
If you don't want to use the built in Deleteyou can use your own ICommand. Here is a short example with RelayCommandwhich can be found in the following link: http://msdn.microsoft.com/en-us/magazine/dd419663.aspx. Also, I uploaded it here: RelayCommand.cs
更新
如果您不想使用内置的，Delete您可以使用自己的ICommand. 这是一个简短的示例RelayCommand，可以在以下链接中找到：http: //msdn.microsoft.com/en-us/magazine/dd419663.aspx。另外，我在这里上传了它：RelayCommand.cs
<DataGrid ItemsSource="{Binding Results}"
SelectedItem="{Binding SelectedResult}"
AutoGenerateColumns="False">
<DataGrid.Columns>
<!-- ... -->
<DataGridTemplateColumn Header="Delete">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button Content="Delete"
Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGrid}},
Path=DataContext.DeleteCommand}"
CommandParameter="{Binding}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
And in your viewmodel or code behind
而在你的视图模型或后面的代码中
private Result m_selectedResult;
public Result SelectedResult
{
get { return m_selectedResult;}
set
{
m_selectedResult = value;
OnPropertyChanged("SelectedResult");
}
}
private bool CanDelete
{
get { return SelectedResult != null; }
}
private ICommand m_deleteCommand;
public ICommand DeleteCommand
{
get
{
if (m_deleteCommand == null)
{
m_deleteCommand = new RelayCommand(param => Delete((Result)param), param => CanDelete);
}
return m_deleteCommand;
}
}
private void Delete(Result result)
{
Results.Remove(result);
}
