WPF中基于RowStyle的CellStyle [英] CellStyle based on RowStyle in WPF

问题描述

我有一个WPF DataGrid用XAML表示.我为网格的TableView使用了RowStyle，但是还需要为特定的单元格设置一些属性.我需要这些单元格具有行样式的属性，并在其顶部应用单元格样式中的其他属性.

I have a WPF DataGrid represented in XAML. I'm using a RowStyle for my grid's TableView but also need to set some properties for specific cells. I need those cells to have the properties of the row style and apply the extra properties from the cell style on top of those.

我需要的是这样的东西，尽管它不能正常工作:

What I would need is something like this, although this doesn't work as it's saying:

目标类型'CellContentPresenter'不能转换为基本类型'GridRowContent'

Target type 'CellContentPresenter' is not convertible to base type 'GridRowContent'

<Style x:Key="MyGridRowStyle"
    BasedOn="{StaticResource {themes:GridRowThemeKey ResourceKey=RowStyle}}"
    TargetType="{x:Type dxg:GridRowContent}">
    <Setter Property="Height" 
        Value="25" />
        <Style.Triggers>
        ...
    </Style.Triggers>
</Style>

<Style x:Key="MyCellStyle" 
    BasedOn="{StaticResource MyGridRowStyle}" 
    TargetType="{x:Type dxg:CellContentPresenter}">
    <Style.Triggers>
        ...
    </Style.Triggers>
</Style>

我也尝试过不为MyCellStyle指定BasedOn属性，但这也不起作用.

I've also tried not specifying the BasedOn property for MyCellStyle but that doesn't work either.

我这样使用MyCellStyle:

<dxg:GridColumn Header="My Header"
                FieldName="MyFieldName"
                Width="100"
                CellStyle="{StaticResource MyCellStyle}" />

和MyGridRowStyle在TableView上是这样的:

RowStyle="{StaticResource MyGridRowStyle}"

如何使单元格样式仅更改MyCellStyle中指定的属性，并将MyGridRowStyle中指定的值用于其他属性?

How can I make the cell style only change the properties specified in MyCellStyle and use the values specified in MyGridRowStyle for the other properties?

推荐答案

基于常规WPF DataGrid，您可以尝试将其扩展为dxg 类DataGridCell是从ContentControl派生的(这是Content的子级). 类DataGridRow是从Control派生的.

based on normal WPF DataGrid you could try this and expand it for dxg the class DataGridCell is derived from ContentControl (that is a child from Content). the class DataGridRow is derived from Control.

现在您可以尝试以下操作:

now you could try the following:

<Style x:Key="BaseStyle" TargetType="Control" >
    <!-- Maybe add BaseStyle / theme here with BasedOn -->
    <Setter Property="Height" Value="25" />
    <!-- Row and Column defaults -->
</Style>
<Style x:Key="MyGridRowStyle" BasedOn="{StaticResource BaseStyle}"
       TargetType="DataGridRow">
    <!-- Row specific implementation -->
</Style>
<Style x:Key="MyCellStyle" BasedOn="{StaticResource BaseStyle}"
       TargetType="DataGridCell">
    <!-- Column specific implementation -->
</Style>

摘要: 对BaseStyle使用Row和Column类的基本类型，并将其用作BasedOn.对于dxg，您可以自己扩展...

summary: use base type of both Row and Column classes for your BaseStyle and use this one as BasedOn. For dxg you can extend it by your own...

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