4

在 WPF 中,我有一个定义了许多列的网格,并且每列的宽度都绑定到 DataGrid 列的宽度,如下所示:

<Grid.ColumnDefinitions>
   <ColumnDefinition Width="{Binding ElementName=dataGrid, Path=RowHeaderWidth}" />
   <ColumnDefinition Width="{Binding ElementName=Column0, Path=ActualWidth}" />
   <ColumnDefinition Width="{Binding ElementName=Column1, Path=ActualWidth}" />
   Etc.

<Controls:DataGrid BorderBrush="White"  ItemsSource="{Binding DataTable}"  
                   Name="datagrid1" Grid.Row="2" RowHeaderWidth="0">

    <Controls:DataGrid.Columns>
    <Controls:DataGridTextColumn  Header="Included"  Width="50" x:Name="Column0" />
    <Controls:DataGridTextColumn  Header="First" Width="100" x:Name="Column1" />
     Etc.

当我运行程序并手动调整列大小时,我可以看到 Grid 列正在调整大小 (ShowGridLines = true),并且与特定 Grid 列相关的元素会适当移动。

但是,当我尝试在代码中添加数据网格和网格列时,我无法使绑定工作(没有绑定错误)。这是一个例子:

 binding = new Binding()
 {
    Source = dataGrid.Columns[col],
    Path = new PropertyPath("ActualWidth"),
    Mode = BindingMode.OneWay, 
 };

 colDef.SetBinding(WidthProperty, binding);

我尝试了其他变体(例如 ElementName = "DataGridColumn1", Path = new PropertyPath("ActualWidth") 但没有错误(也没有绑定)或“找不到绑定源”错误或 BindingExpression 路径错误。

必须有一种方法可以在代码中设置绑定...?

4

3 回答 3

6

我找到了答案。这一行:

 colDef.SetBinding(WidthProperty, binding);

应改为:

 colDef.SetBinding(ColumnDefinition.WidthProperty, binding);
于 2009-05-28T06:09:16.587 回答
0
DataGridTextColumn textColumn = new DataGridTextColumn();
textColumn.Width = DataGridLength.SizeToHeader;

谷歌DataGridLength获得其他选择....

于 2011-11-21T09:19:18.117 回答
0

在我的项目中,我确实喜欢这个 - 认为值得一提,因为在我得到它之前我遇到了很多问题:

    DataGridTextColumn c = new DataGridTextColumn
    {
          // Binding to my value (not directly related to the question)
          Binding = new Binding
          {
               Path = new PropertyPath(cd.Title + ".Value"),
               Mode = BindingMode.TwoWay
          }
     };

     // Binding the width 
     BindingOperations.SetBinding(c, DataGridTextColumn.WidthProperty, new Binding
     {
           Source = cd,                        // An INotifying object
           Path = new PropertyPath("Width"),   // A Property of that object
           Mode = BindingMode.TwoWay
      });
于 2015-10-15T10:02:21.873 回答