我有这个数据网格避免datacontext中的匿名类型?
<DataGrid Grid.Row="3" Name="DataGrid6S" AutoGenerateColumns="False" VerticalScrollBarVisibility="Auto">
<DataGrid.Columns>
<DataGridTextColumn Header="ID" Width="50" Binding="{Binding ID}" Visibility="Collapsed"></DataGridTextColumn>
<DataGridTextColumn Header="Name" Width="200" Binding="{Binding Name}"></DataGridTextColumn>
<DataGridTextColumn Header="Text" Width="200" Binding="{Binding Text}"></DataGridTextColumn>
<DataGridTemplateColumn Header="Edit" Width="*">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button Click="Button_Click" >View Details</Button>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
这是由下面的代码填入:
class Test {
public int W { get; set; }
public string X { get; set; }
public string Y { get; set; }
}
public partial class MainWindow : Window {
public MainWindow() {
InitializeComponent();
List<Test> testList = new List<Test>();
testList.Add(new Test() { W = 0, X = "hello", Y = "one" });
testList.Add(new Test() { W = 1, X = "hello", Y = "two" });
testList.Add(new Test() { W = 2, X = "hello", Y = "three" });
testList.Add(new Test() { W = 3, X = "hello", Y = "four" });
var query =
from values in testList
select new { ID = values.W, Name = values.X, Text = values.Y };
DataGrid6S.ItemsSource = query;
}
private void Button_Click(object sender, RoutedEventArgs e) {
var obj = ((FrameworkElement)sender).DataContext;
// Can't access values because it's of an anoymous type.
// What do I have to do to be able to access the values stored here?
}
}
当点击一个按钮,我想知道哪个该按钮是该行的ID点击,但我找不到,因为行是用匿名类型初始化的,我需要做些什么才能找到点击行的ID?
注意:这是一个简化版本假设查询由5个连接&一个where子句组成。
一个不使用像这样的演员,我会建议。 'var button =(FrameworkElement)sender; var context =(Bla)button.DataContext;'只有在之后检查null时才使用as-casts。 – 2012-08-14 20:37:50