如何将ValueConverter源与样式中的目标单元格绑定 [英] How to bind a ValueConverter source to target cell from style

问题描述

嗨！



我有一些带有一些列的DataGrid。我需要根据它们的值为部分列着色。因此我做了一个IValueConverter实现。我在样式中添加了一个背景属性setter：

 <  样式    x：键  =   CenterCellStyle    TargetType  < span class =code-keyword> =  {x：Type DataGridCell} >  
 <   Setter    属性  = 背景   值  =  {Binding   ???  ，Converter = {StaticResource ResourceKey = A larmConverter}}    /  >  
 ... 

受影响的单元格如下所示：

 <   DataGridTextColumn    标题  = 黑色    Binding   =  {Binding [1] }   宽度  =  100    CellStyle   =  {StaticResource CenterCellStyle}  /  >  

如果我写代替 ??? 绑定到网格的类的任何属性名称，该行中所有受影响的单元格将根据该属性进行着色。但我需要根据它自身的价值为每个细胞着色。



我应该用什么来代替 ??? ？



我发现此处 [ ^ ]以下表达看起来很有希望： {Binding Text，RelativeSource = {RelativeSource Self}} ，但它不起作用 - 我想因为DataGridTextColumn没有Text属性，我应该绑定到绑定到单元格的字段，但是有一些相对引用。但不知道怎么做。



请指教。谢谢。

解决方案

我自己解决了这个问题：

 <   setter     property   = 背景    value   =  {Binding  RelativeSource = {RelativeSource Self} ，Path = Content.Text ，Converter = {StaticResource ResourceKey = AlarmConverter}}    /  >  

...并且传递给转换器的对象是细胞。这就是我所需要的。



[为什么我不能删除我的解决方案 - 我不能从一开始就正确添加我自己的解决方案，不仅在发布了其他内容之后？]

 <   setter     property   =  背景    value  < span class =code-keyword> =  {Binding  RelativeSource = {RelativeSource Self}，Path = Content.Text ，Converter = { StaticResource ResourceKey = AlarmConverter}}    /   >  

Hi!

I have a DataGrid with some columns. I need to color part of the columns based on their value. Thus I have made an IValueConverter implementation. I added a background property setter to the style:

<Style x:Key="CenterCellStyle" TargetType="{x:Type DataGridCell}">
  <Setter Property="Background" Value="{Binding ???, Converter={StaticResource ResourceKey=AlarmConverter}}" />
...

The affected cells look like this:

<DataGridTextColumn Header="Black" Binding="{Binding [1]}" Width="100" CellStyle="{StaticResource CenterCellStyle}"/>

If I write in place of ??? any property name of the class bound to the grid, all affected cells in the row will be colored based on that property. But I need to color every cell based on it''s own value.

What should I write in place of ??? ?

I have found here[^] the following expression that looked promising: {Binding Text, RelativeSource={RelativeSource Self}}, but it is not working - I suppose because DataGridTextColumn has no Text property, and I should bind to the field bound to the cell, but with some relative reference. But don''t know how.

Please advice. Thank you.

解决方案

I have solved it myself:

<setter property="Background" value="{Binding RelativeSource={RelativeSource Self}, Path=Content.Text, Converter={StaticResource ResourceKey=AlarmConverter}}" />

... and the object passed to the converter is the string in the cell. And that is what I needed.

[Why can''t I delete my solution - and can''t I add my own solution properly right from the start, not only after an other is posted?]

<setter property="Background" value="{Binding RelativeSource={RelativeSource Self}, Path=Content.Text, Converter={StaticResource ResourceKey=AlarmConverter}}" />

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