C# 'if' Binding value

Question

I've got a list view that is populated by a Binding, on a class named House.

Here's an example of my code:

<DataTemplate DataType="house">
    <TextBlock Text="{Binding sold_status}" />
</DataTemplate>

As you can see, one of my variable names is sold_status. This is a bool.

I want to show either "SOLD" or "NOT SOLD" for 1 and 0 respectively.

Is it possible to fashion an if statement based on the value?

So just so that you can visualise what I want to achieve:

<DataTemplate DataType="house">
    <TextBlock Text="({Binding sold_status} == 1) 'SOLD' else 'NOT SOLD'" />
</DataTemplate>

Community · Accepted Answer · 2017-05-23 12:23:08Z

5

You'll want to create a Style with DataTriggers in to set the properties as needed. You could also use a converter, but changing UI control properties based on underlying data is exactly what triggers/styles are all about.

..In fact, I can see you're basically 'converting' sold_status to a bit of text. For that, use a converter. I'll post a quick example..

See the top answer here: WPF: Display a bool value as "Yes" / "No" - it has an example converter class you could repurpose.

edited May 23, 2017 at 12:23

CommunityBot

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answered Oct 31, 2011 at 13:29

Kieren Johnstone

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1 Comment

ChrisBD Over a year ago

+1 - A converter is definately the way to go. In fact this is such a common problem with bools that I'm surprised there's not a VS code snippet for it.

Wayne Tanner · Accepted Answer · 2011-10-31 13:31:40Z

2

Look up the IValueConverter interface for an example. Implement the Convert method to return the text you want to display.

answered Oct 31, 2011 at 13:31

Wayne Tanner

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Mike · Accepted Answer · 2011-10-31 13:30:35Z

0

You want to use a value converter.

answered Oct 31, 2011 at 13:30

Mike

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Purplegoldfish · Accepted Answer · 2011-10-31 13:31:25Z

0

A better approach to this would be to use a converter. Keep the binding as you have done in your first example then have the converter return a string with "Sold" if true etc.

answered Oct 31, 2011 at 13:31

Purplegoldfish

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Sergei B. · Accepted Answer · 2011-10-31 13:50:08Z

0

I suggest you to use a DataTrigger. It's quite simple and doesn't require separate converter.

<DataTemplate DataType="house">
    <TextBlock x:Name="Status" Text="SOLD" />
    <DataTemplate.Triggers>
         <DataTrigger Binding="{sold_status}" Value="False">
              <Setter TargetName="Status" Property="Text" Value="NOT SOLD"/>
         </DataTrigger>

    </DataTemplate.Triggers>
</DataTemplate>

answered Oct 31, 2011 at 13:50

Sergei B.

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