WPF的Datagrid组扩展文本 - 如何绑定？ [英] WPF Datagrid group expander text - how to bind?

问题描述

我使用与应改变分组字段一个COMBOX一个DataGrid。我使用下面的XAML来定义通用分组模板：

I am using a datagrid with a combox that should change the grouping field. I am using the following xaml to define the general grouping template :

<DataGrid.GroupStyle>
        <GroupStyle>
            <GroupStyle.ContainerStyle>
                <Style TargetType="{x:Type GroupItem}">
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type GroupItem}">
                                <Expander>
                                    <Expander.Header>
                                        <StackPanel Orientation="Horizontal">
                                            <TextBlock Text="NEEDS TO BE BINDED..."/>
                                        </StackPanel>
                                    </Expander.Header>
                                    <ItemsPresenter />
                                </Expander>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>
            </GroupStyle.ContainerStyle>
        </GroupStyle>
    </DataGrid.GroupStyle>

我只需要能够在膨胀机内'达到'该TextBlock中，以便能够输出施加所选择的分组

I only need to be able to 'reach' that TextBlock within the expander to be able to output the selected grouping applied.

请帮忙....

推荐答案

我已经通过添加包含当前选定的分组（我手动设置ofcourse）+更多的细节，我需要一个嵌套类解决了我的问题。然后，通过使用绑定到类属性：

I have solved my issue by adding a nested class that contains the currently selected grouping (which i manually set ofcourse) + more details i need. Then binding to the class property by using :

＆LT; TextBlock的文本={绑定源= {StaticResource的GroupingSubject}，路径=名称}/＆GT;

Ofcourse，我不得不在XAML资源范围内声明类如下：

Ofcourse that i had to declare the class within the xaml resources as follows :

＆lt;局部：GroupingName X：键=GroupingName/＆GT;

我的嵌套类看起来如下：

My nested class looks as follows :

public class GroupingSubject 
{
    private static String name = null;
    private static Object groupType = null;

    public GroupingSubject() { }
    public static String Name
    {
        get { return name; }
        set { name = value; }
    }

    public static Object GroupType
    {
        get { return groupType; }
        set { groupType = value; }

    }

}

现在一切都很好...

Now all is well...

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