CODEWITHSUNDEEP
wpfdata-binding
Stacked
Stacked

Reputation: 7336

WPF databinding not working

private MyObject _myObject;
public MyObject MyObject
{
    get { return _myObject; }
    set
    {
        if (_myObject != value)
        {
            _myObject = value;
            RaisePropertyChanged(() => MyObject);
        }
    }
}


<TextBox Text="{Binding MyObject.MyObjectProperty}"/>

When starting my app, MyObject is initialized, the MyObjectProperty is shown in my TextBox, but when I change the MyObjectProperty of MyObject, the TextBox is not updated!

Upvotes: 0

Views: 369

Answers (2)

Jordan Parmer
Jordan Parmer

Reputation: 37224

In addition to what blindmeis said, make sure you also specify two way binding on the textbox.

<TextBox Text="{Binding Path=MyObject.MyProperty, Mode=TwoWay"}/>

Upvotes: 0

blindmeis
blindmeis

Reputation: 22445

does your MyObject object implement INotifyPropertyChanged and call it?

public class MyObject
{
private string _prop;
public string MyObjectProperty
{
  get { return _prop; }
  set
  {
    if (_prop!= value)
    {
        _prop = value;
        RaisePropertyChanged(() => MyObjectProperty);
    }
 }
}
}

and the default UpdateSourceTrigger is LostFocus so you have to leave the textbox to see anything

Upvotes: 1

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