WPF Datagrid的视图头绑定 [英] WPF Datagrid view header binding

问题描述

其实这个问题IM面对的是比标题所说略有不同。
我尝试sumarize跌破发行。

 类PersonnelViewModel
{公共SelectedPersonnelItem PersonnelItemViewModel;}类PersonnelItemViewModel
{}
 

视图的数据上下文的 A ，而数据网格的项目源的 SelectedPersonnelItem 这是一个乙 type属性在类 A 。现在我想网格列绑定属性的类内defiend的 A 。但它不工作作为电网的背景是另一个类（乙）。我怎样才能解决这个问题呢？

XAML

 ＆LT;数据网格Grid.Row =1
          的SelectedItem ={结合SelectedPersonnelItem}
          NAME =PersonnelGrid
          的ItemsSource ={结合PersonnelGridData}
          事件：DatagridRowDoubleClickHandler.MethodName =EditRecord
          CanUserAddRows =FALSE＆GT;
  ＆LT; D​​ataGrid.Columns＆GT;
    ＆LT; D​​ataGridTemplateColumn＆GT;
      ＆LT; D​​ataGridTemplateColumn.CellTemplate＆GT;
        ＆LT;＆DataTemplate的GT;
          ＆LT;复选框器isChecked ={结合IsItemChecked，UpdateSourceTrigger =的PropertyChanged}＆GT;＆LT; /复选框＆GT;
        ＆LT; / DataTemplate中＆GT;
      ＆LT; /DataGridTemplateColumn.CellTemplate>
    ＆LT; / DataGridTemplateColumn＆GT;
    ＆LT; D​​ataGridTextColumn标题=名称/公司
                        绑定={结合名称}/＆GT;
    ＆LT; D​​ataGridTextColumn标题=资格
                        绑定={结合资质}/＆GT;
    ＆LT; D​​ataGridTextColumn标题=到达
                        绑定={结合ArrivalDate}/＆GT;
    ＆LT; D​​ataGridTextColumn标题=出发
                        绑定={结合DepartureDate}/＆GT;
  ＆LT; /DataGrid.Columns>
＆LT; / DataGrid的＆GT;
 

解决方案

最后，我设法得到它的工作。如果我直接的财产，以该列绑定头它不是填充值。

我不得不这样做如下：

 ＆LT; D​​ataGridTextColumn绑定={绑定名称}＆GT;
    ＆LT; D​​ataGridTextColumn.Header＆GT;
        ＆LT; TextBlock的文本={结合DataContext.MyProp，
                       的RelativeSource = {的RelativeSource FindAncestor，
                       AncestorType = {X：类型窗口}}}/＆GT;
    ＆LT; /DataGridTextColumn.Header>
＆LT; / DataGridTextColumn＆GT;
 

Actually the issue im facing is slight different than what title says. I try to sumarize the issue below.

Class PersonnelViewModel
{

public SelectedPersonnelItem PersonnelItemViewModel;

}

Class PersonnelItemViewModel
{

}

Data Context of the View is A whereas the Item source of the data grid is SelectedPersonnelItem which is a B type property in the class A. Now i want to bind the grid column to properties defiend within class A. But its not working as the context of the grid is another class (B). How can i solve this issue ?

XAML

<DataGrid Grid.Row="1"
          SelectedItem="{Binding SelectedPersonnelItem}"
          Name="PersonnelGrid"
          ItemsSource="{Binding PersonnelGridData}"
          event:DatagridRowDoubleClickHandler.MethodName="EditRecord"
          CanUserAddRows="False">
  <DataGrid.Columns>
    <DataGridTemplateColumn>
      <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
          <CheckBox IsChecked="{Binding IsItemChecked, UpdateSourceTrigger=PropertyChanged}"></CheckBox>
        </DataTemplate>
      </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
    <DataGridTextColumn Header="Name/Company"
                        Binding="{Binding Name}" />
    <DataGridTextColumn Header="Qualification"
                        Binding="{Binding Qualification}" />
    <DataGridTextColumn Header="Arrival"
                        Binding="{Binding ArrivalDate}" />
    <DataGridTextColumn Header="Departure"
                        Binding="{Binding DepartureDate}" />
  </DataGrid.Columns>
</DataGrid> 

解决方案

Finally I managed to get it working. If I directly bind the property to the column header its not populating the value.

I had to do as following:

<DataGridTextColumn Binding="{Binding Name}">
    <DataGridTextColumn.Header> 
        <TextBlock Text="{Binding DataContext.MyProp, 
                       RelativeSource={RelativeSource FindAncestor, 
                       AncestorType={x:Type Window}}}" /> 
    </DataGridTextColumn.Header>
</DataGridTextColumn>

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