如何获取datagrid列绑定的字段？ [英] How to get field that datagrid column is bound to?

问题描述

在我的xaml中，我修改了每个列标题以包含一个按钮。对于命令参数，我想使用列的数据字段名称，而不是标题内容。例如。我想要的是 JOB_TITLE，而不是标题内容是 Job Title。

In my xaml I have modified each column header to include a button. For the command parameter I would like to use the column's data field name, instead of the header content. E.g. Instead of "Job Title" which is what the header content is, I want "JOB_TITLE".

对于标题内容，我将使用：

For header content I would use:

<Button Command="{Binding DataContext.OpenFilterCommand, RelativeSource={RelativeSource AncestorType=UserControl}}" CommandParameter="{TemplateBinding Content}">

如何获取实际的字段名称？

How do I get the actual field name?

推荐答案

如果我认为正确，那么您希望将 绑定到该列的绑定属性名称作为命令参数传递给OpenFilterCommand 。

If i assume it right you want binding property name to which column is binded to pass as command parameter to OpenFilterCommand.

假设您的DataGrid的列是这样的：

Suppose columns are like this for your DataGrid:

        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding NAME}"/>
            <DataGridTextColumn Binding="{Binding JOB_TITLE}" />
        </DataGrid.Columns>

，并希望将属性名称 JOB_TITLE 传递为命令参数。可以这样实现：

and want to pass property name JOB_TITLE as command parameter. This can be achieve like this:

<Button Command="{Binding DataContext.OpenFilterCommand,
                     RelativeSource={RelativeSource AncestorType=UserControl}}"
        CommandParameter="{Binding Column.Binding.Path.Path,
                     RelativeSource={RelativeSource Mode=TemplatedParent}}"/>

---

EXPLANATION

TemplatedParent（ DataGridColumnHeader ）->列（ DataGridTextColumn ）
- ->绑定（ BindingBase ）->路径（ PropertyPath ）->路径（ Actual PropertyName ）

TemplatedParent (DataGridColumnHeader) --> Column (DataGridTextColumn) --> Binding (BindingBase) --> Path (PropertyPath) --> Path (Actual PropertyName)

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