CODEWITHSUNDEEP
c#wpfxaml
JohnPaul
JohnPaul

Reputation: 77

Binding Button Content value in wpf

I am new to Wpf. Basically i achieve Button content Value change dynamically. here is my code.

xaml:

<Button x:Name="btnTest"  Content="NO" HorizontalAlignment="Left"VerticalAlignment="Top" Width="233" Height="40" Click="btnTest_Click" />

Cs file:

 private void btnTest_Click(object sender, RoutedEventArgs e)
    {          
        if (btnTest.Content.ToString() == "NO")
        {
            btnTest.Content = "YES";
        }
        else if (btnTest.Content.ToString() == "YES")
        {
            btnTest.Content = "NO";
        }
    }

how can i achieve this same in "Binding" logic.

xaml:

  <Button x:Name="btnTest"  Content="{Binding ???}"   HorizontalAlignment="Left"VerticalAlignment="Top" Width="233" Height="40" Click="btnTest_Click" />

could anyone please help?

Upvotes: 0

Views: 6996

Answers (2)

Orion
Orion

Reputation: 220

Just like this:

Content="{Binding XXX, Mode=TwoWay, ValidatesOnDataErrors=True}"

This will get the value (for Content in this case) from DataContext.

EDIT:

A) To create data context (code-behind version):

this.DataContext = new SomeViewModel();

You may put this for example in your constructor (in control/form/whatever)...

B) And finally SomeViewModel is just a class:

public class SomeViewModel : IDataErrorInfo // sample interface
{
    private string _xxx;

    public string IP
    {
        get { return _xxx; }
        set { _xxx = value; }
    }
}

Upvotes: 3

grzkv
grzkv

Reputation: 2619

You can try this

Content= "{Binding RelativeSource={RelativeSource Self}, Path=YNText, Mode=OneWay}"

and add this to the code behind

public string YNText {
    get
    {
        _switch = !_switch;
        return _switch ? "YES" : "NO";
    }
}

private bool _switch;

Upvotes: 1

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