WPF数据网格文本省略号不起作用 [英] WPF Data grid Text Ellipsis Not working

问题描述

我有一个用户评论长的列。我使用以下代码加载...

 < my：DataGridTextColumn Header =Message
 Binding = {Binding UserMessage，Mode = OneWay}
 CanUserSort =True> 
< my：DataGridTextColumn.ElementStyle> 
< Style TargetType ={x：Type TextBlock}
 BasedOn ={StaticResource {x：Type TextBlock}}> 
< Setter Property =TextWrapping
 Value =NoWrap/> 
< Setter Property =TextTrimming
 Value =CharacterEllipsis/> 
< Setter Property =ToolTip
 Value ={Binding Path = UserMessage，Mode = OneWay}/> 
< / Style> 
< / my：DataGridTextColumn.ElementStyle> 
< / my：DataGridTextColumn> 
  

但省略号不起作用。该列继续显示长文本的数据。此外，当我将textblock的宽度显式设置为某个值时，省略号可以正常工作，但是当我调整列的大小时，它不会再显示任何文本。

不在那里一个这样做的一个最好的方法？

Thx
Vinit Sankhe。

解决方案

尝试设置您的列上只需要静态宽度的宽度。在此列中，将宽度设置为*

 < my：DataGridTextColumn Header =Message
绑定={Binding UserMessage，Mode = OneWay}
 CanUserSort =True
 Width =*> 
< my：DataGridTextColumn.ElementStyle> 
< Style TargetType ={x：Type TextBlock}
 BasedOn ={StaticResource {x：Type TextBlock}}> 
< Setter Property =TextWrapping
 Value =NoWrap/> 
< Setter Property =TextTrimming
 Value =CharacterEllipsis/> 
< Setter Property =ToolTip
 Value ={Binding Path = UserMessage，Mode = OneWay}/> 
< / Style> 
< / my：DataGridTextColumn.ElementStyle> 
< / my：DataGridTextColumn> 
  

我通过Google搜索您的问题找到您的问题。我拿了你的代码，只是添加宽度到我的列（除了标题列），并能够正确放置省略号。我还添加了一个MinWidth，以确保当窗口调整大小时，列不会被压缩为无。

I have a column with long user comments. I load it using following code...

<my:DataGridTextColumn Header="Message"
                       Binding="{Binding UserMessage, Mode=OneWay}" 
                       CanUserSort="True">
    <my:DataGridTextColumn.ElementStyle>
        <Style TargetType="{x:Type TextBlock}"
               BasedOn="{StaticResource {x:Type TextBlock}}">
               <Setter Property="TextWrapping"
                       Value="NoWrap" />
               <Setter Property="TextTrimming"
                       Value="CharacterEllipsis"/>                                    
               <Setter Property="ToolTip"
                       Value="{Binding Path=UserMessage, Mode=OneWay}"/>
        </Style>
    </my:DataGridTextColumn.ElementStyle>
</my:DataGridTextColumn>

But the ellipsis wont work. The column continues to display long text of data. Also when I set the width of the textblock explicitly to some value then the ellipsis work fine but when I resize my column it wont show any more text in it.

Isnt there a starighforward way to do this?

Thx Vinit Sankhe.

解决方案

Try setting widths on your columns that only need static widths. On this column you set the width to "*"

<my:DataGridTextColumn Header="Message"
                       Binding="{Binding UserMessage, Mode=OneWay}" 
                       CanUserSort="True"
                       Width="*">
    <my:DataGridTextColumn.ElementStyle>
        <Style TargetType="{x:Type TextBlock}"
               BasedOn="{StaticResource {x:Type TextBlock}}">
               <Setter Property="TextWrapping"
                       Value="NoWrap" />
               <Setter Property="TextTrimming"
                       Value="CharacterEllipsis"/>                                    
               <Setter Property="ToolTip"
                       Value="{Binding Path=UserMessage, Mode=OneWay}"/>
        </Style>
    </my:DataGridTextColumn.ElementStyle>
</my:DataGridTextColumn>

I found your question by Googling your question. I took your code and just added widths to my columns (except for a "Title" column) and was able to have it place the ellipsis correctly. I also added a MinWidth just to make sure that when the window is resized the column isn't squished to nothing.

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