`TextBlock`'s `TextWrapping` property not getting set to `Wrap` on conditions

Question

The TextWrapping property was setting to Wrap in this code

<ListView Name="answerListView" ItemsSource="{Binding Path=answers}">
  <ListView.ItemTemplate>
    <DataTemplate>
      <StackPanel>
        <Expander Cursor="Hand">
          <Expander.Header>
            <TextBlock Text="{Binding Path=Body_Markdown}" TextWrapping="Wrap"/>
          </Expander.Header>
        </Expander>
      </StackPanel>
    </DataTemplate>
  </ListView.ItemTemplate>
</ListView>

But, now I have added conditional formatting to the TextBlock, i.e., if answer is accepted then show it in green colour. So the code I have used is this:

<ListView Name="answerListView" ItemsSource="{Binding Path=answers}">
  <ListView.ItemTemplate>
    <DataTemplate>
      <StackPanel>
        <Expander Cursor="Hand">
          <Expander.Header>
            <TextBlock Text="{Binding Path=Body_Markdown}">
              <TextBlock.Style>
                <Style TargetType="{x:Type TextBlock}">
                  <Style.Triggers>
                    <DataTrigger Binding="{Binding Path=is_accepted}" Value="true">
                      <Setter Property="Foreground" Value="Green"/>
                      <Setter Property="TextWrapping" Value="Wrap"/>
                    </DataTrigger>
                  </Style.Triggers>
                </Style>
              </TextBlock.Style>
            </TextBlock>
          </Expander.Header>
        </Expander>
      </StackPanel>
    </DataTemplate>
  </ListView.ItemTemplate>
</ListView>

Here, the second line of setting, i.e., Foreground property is not working. Even if I have the same line after <Style TargetType> or TextWrapping="Wrap" in TextBlock, then also it is not working.

Can you show us the ViewModel please ? – NTinkicht Mar 09 '16 at 11:26 — NTinkicht, Mar 09 '16 at 11:26

score 1 · Accepted Answer · answered Mar 18 '16 at 00:31

1

ScrollViewer.HorizontalScrollBarVisibility="Disabled" must been added to ListView. Then this problem will be solved.

answered Mar 18 '16 at 00:31

amit jha

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score 0 · Answer 2 · answered Mar 09 '16 at 11:25

0

Specify the type too:

<Setter Property="TextBlock.Foreground" Value="Green"/>
<Setter Property="TextBlock.TextWrapping" Value="Wrap"/>

answered Mar 09 '16 at 11:25

StepUp

36,391
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@amitjha could you show, please, your `Model` and `ViewModel`? – StepUp Mar 09 '16 at 11:33
Do I paste the code? It will be difficult to understand. – amit jha Mar 10 '16 at 07:05
@amitjha post just necessary code - `Model`, and properties from `ViewModel`. – StepUp Mar 10 '16 at 07:17
`ViewModel` - https://docs.google.com/document/d/1zOmetVgWqbJWNCervSRmdF4WnOAnRvuUi6ofxbc4S7E/edit?usp=sharing – amit jha Mar 10 '16 at 07:50
@amitjha please read this article and post your code here. You will gain more help from other people, if you post code here. It is more convenient to see in theme, rather than in some other resources. – StepUp Mar 10 '16 at 08:02

score 0 · Answer 3 · answered Mar 09 '16 at 11:35

0

I guess you are binding a private field, instead of the public property:

{Binding Path=is_accepted} should be replaced by your property {Binding Path=Is_accepted}

This answer assumes that you are using the usual naming which makes fields start by lower case and Properties by Upper case.

answered Mar 09 '16 at 11:35

NTinkicht

972
2
12
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No, the `is_accepted` value is public property. I have used these properties as it is as they are returned as JSON. – amit jha Mar 09 '16 at 11:38
Do I paste the code? It will be difficult to understand. – amit jha Mar 10 '16 at 07:05
`ViewModel` - https://docs.google.com/document/d/1zOmetVgWqbJWNCervSRmdF4WnOAnRvuUi6ofxbc4S7E/edit?usp=sharing – amit jha Mar 10 '16 at 07:50
Sorry, I don't see any relation between your view and your viewModel. All properties you are binding to in your view are not present in your viewModel... – NTinkicht Mar 10 '16 at 14:37

`TextBlock`'s `TextWrapping` property not getting set to `Wrap` on conditions

3 Answers3