如何为数据网格动态列创建数据触发器？ [英] How to create data trigger for data grid dynamic columns?

问题描述

需要创建具有可配置列的数据网格。因为单元格颜色将根据数据绑定而改变。



这可以通过该列的数据触发器（xaml）来完成 - ''只有单元格背景颜色''。



但我需要从视图模型类（mvvm wpf）生成动态列。并且需要为相应的列生成数据触发器。



我在google上花了很多时间，但最终结果是null。

解决方案

嗨。试试这种方式：

 <   DataGridTextColumn    标题  =  主题   >  
 <   DataGridTextColumn.ElementStyle  >  
 <  样式    TargetType   =  {x：Type TextBox}  >  
 <  设定器 <跨度class =code-attribute>  属性  = 模板 >  
 <   Setter.Value  >  
 <   ControlTemplate     TargetType   =  {x：Type TextBox} >  
 < span class =code-keyword><   TextBlock    文本  =  {TemplateBinding Text}  /  >  
 <   / ControlTemplate  >  
 < ;   / Setter.Value  >  
 <   / Setter  >  
 <   Style.Triggers  >  
 <   DataTrigger    绑定  =  {绑定YourFavoriteProperty}   值  =  >  
 <   Setter     Property   = 背景   值  =   /  >  
 <   / DataTrigger  >  
 <   / Style.Triggers  >  
 <   / Style  >  
 <  < span class =code-leadattribute> / DataGridTextColumn.ElementStyle  >  
 <   / DataGridTextColumn  >  

如果这不起作用告诉我。

祝你好运

嗨。这完全不起作用。如果你完成它，请告诉我：

 <  < span class =code-leadattribute>样式    x：Key   =  myStyle    TargetType   =  {x：Type DataGridCell} >  
 
 <   Setter    属性  = 模板 >  
 <   Setter.Value  >  
 <   ControlTemplate     TargetType   =  {x：Type DataGridCell} >  
 <   ContentPresenter    >  
 <   ContentPresenter.ContentTemplate  >  
 <   DataTemplate  >  
 <   TextBox    文本  =  {Binding RelativeSource = {RelativeSource AncestorType = DataGridCell，Mode = FindAncestor}，Path = Content}  /  >  
 <   / DataTemplate  > ;  
 <   / ContentPresenter.ContentTemplate  >  
 <   / ContentPresenter  >  
 <   / ControlTemplate  >  
 <   / Setter.Value  >  
 <   / Setter  >  
 <   / Style  >  

Need to create a data grid with configurable columns. In that the cell colors will change according to the data bind.

This can be done by data trigger of that column(xaml) - ''only the cell background color''.

But i need to generate the dynamic column from view model class(mvvm wpf). And need to generate data triggers for the corresponding columns.

I have spent lots of day on googling but the end result is null.

解决方案

Hi. try this way :

<DataGridTextColumn Header="Subject" >
                    <DataGridTextColumn.ElementStyle>
                        <Style TargetType="{x:Type TextBox}">
                            <Setter Property="Template">
                                <Setter.Value>
                                    <ControlTemplate TargetType="{x:Type TextBox}">
                                        <TextBlock Text="{TemplateBinding Text}"/>
                                    </ControlTemplate>
                                </Setter.Value>
                            </Setter>
                            <Style.Triggers>
                                <DataTrigger Binding="{Binding YourFavoriteProperty}" Value="">
                                    <Setter Property="Background" Value=""/>
                                </DataTrigger>
                            </Style.Triggers>
                        </Style>
                    </DataGridTextColumn.ElementStyle>
                </DataGridTextColumn>

if this doesn''t work tell me.
Good Luck

Hi.this doesn''t work completely. if you complete it, please tell me:

<Style x:Key="myStyle" TargetType="{x:Type DataGridCell}">

           <Setter Property="Template">
               <Setter.Value>
                   <ControlTemplate TargetType="{x:Type DataGridCell}">
                       <ContentPresenter >
                           <ContentPresenter.ContentTemplate>
                               <DataTemplate>
                                   <TextBox Text="{Binding RelativeSource={RelativeSource AncestorType=DataGridCell, Mode=FindAncestor}, Path=Content}"/>
                               </DataTemplate>
                           </ContentPresenter.ContentTemplate>
                       </ContentPresenter>
                   </ControlTemplate>
               </Setter.Value>
           </Setter>
       </Style>

这篇关于如何为数据网格动态列创建数据触发器？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！