当它们都在DataGridTemplateColumn中时，从Button清除TextBlock
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我有一个带有DataGridTemplateColumn的DataGrid。
DataGridTemplateColumn包含一个按钮和TextBlock。
我希望按下按钮将清除textBlock的文本。
我怎么做 ？
XAML：
<Grid>
<DataGrid ItemsSource=\"{Binding Persons}\" AutoGenerateColumns=\"False\">
<DataGrid.Columns>
<DataGridTextColumn Header=\"Name\" Binding=\"{Binding Name}\">
</DataGridTextColumn>
<DataGridTemplateColumn Header=\"Mask Expiration Time\">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<StackPanel Orientation=\"Horizontal\" HorizontalAlignment=\"Right\">
<TextBlock Text=\"{Binding Name}\"></TextBlock>
<Button Name=\"btnClear\" Click=\"btnClear_Click\" >Clear</Button>
</StackPanel>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
</Grid>
public partial class MainWindow : Window
{
public List<Person> Persons { get; set; }
public MainWindow()
{
Persons = new List<Person> { new Person { Name = \"James\" }, new Person { Name = \"Kate\" } };
DataContext = this;
InitializeComponent();
}
private void btnClear_Click(object sender, RoutedEventArgs e) {
var clearbutton = (Button) sender;
// clear the Name
}
}
public class Person
{
public string Name { get; set; }
}
没有找到相关结果
已邀请:
3 个回复
你换
：了驳
并通过属性传递当前的Person对象。像这样：<Button Content=\"Clear\" Command=\"{Binding DataContext.ClearNameCommand, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}}\" CommandParameter=\"{Binding}\" />）冉案
：public class ClearNameCommand : ICommand { public bool CanExecute(object parameter, IInputElement target) { var person = parameter as Person; return (person != null && person.Name.Length > 0); } public void Execute(object parameter, IInputElement target) { var person = parameter as Person; if (person != null) { person.Name = String.Empty; } } }<StackPanel Orientation=\"Horizontal\" HorizontalAlignment=\"Right\"> <TextBlock Text=\"{Binding Name}\"></TextBlock> <Button x:Name=\"btnClear\" Command=\"{StaticResource ClearCommand}\" CommandParameter=\"{Binding}\">Clear</Button> </StackPanel>