Posts

• ClintStLaurent USUniversity ✭✭✭✭✭

  January 2017

  @Pino13
  You can't put in calculation in a condition. Its boolean: Either the condition is true or false.

  for calculation you'll have to make a Converter to do the math then return true or false.

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• Pino13 COMember ✭

  January 2017

  @ClintStLaurent
  The calculation for SALDO is in the ViewModel .
  The boolean trigger is "<0" isnt it?

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• ClintStLaurent USUniversity ✭✭✭✭✭

  January 2017 edited January 2017

  @Pino13

  No. "Is less than 0" is a calculation to be evaluated. Something either is 0 or is not 0. That's boolean.

  You can't enter a formula in a string and expect the math to be evaluated by magic.

  You can't set a label to "5 + 4 + 6 +8" and expect it to display "23" Just doesn't work that way.
  Same here "<3" requires an evaluation calculation to be performed. That requires executable code in a C# Converter. It is not done in XAML markup.

  Just like you can't set Margin = "5 + 6" and expect a margin of 11.

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• Pino13 COMember ✭

  January 2017

  @ClintStLaurent
  Ok, got it.
  Im gonna try something based on your explanation and ill be back.
  Tanks !

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• Pino13 COMember ✭

  January 2017

  Now Im doing this on ViewModel

          if (Saldo <0)
          {
              suicheSaldo = true;
          }
          else
          {
              suicheSaldo = false;
          }
  

  and this on XAML

      <Label
        Style="{StaticResource TextoGeneral}"
        Text="{Binding Saldo, StringFormat='{0:C0}'}">
        <Label.Triggers>
          <DataTrigger TargetType="Label"
                       Binding="{Binding suicheSaldo}"
                       Value="true">
            <Setter Property="TextColor" Value="{StaticResource ColorRealce}" />
          </DataTrigger>
        </Label.Triggers>
      </Label>
  

  Still no change on TextColor

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• AleksanderRokic.0776 USMember ✭

  February 2018

  Look at this working example as a template:

                <Label Text="{Binding DisplayText}" TextColor="Black">
                  <Label.Triggers>
                    <DataTrigger TargetType="Label" Binding="{Binding HasExpired}" Value="True">
                      <Setter Property="TextColor" Value="Red"/>
                    </DataTrigger>
                  </Label.Triggers>
                </Label>
  

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