WPF binding not working properly with properties of int type

Question

I am having a property of `int` type in my view model which is bound to a `TextBox`. Everything works properly, `TwoWay` binding works fine except in one case - If I clear the value of `TextBox`, property setter doesn't gets called and although value is cleared in `TextBox`, property still holds the previous value. has anyone faced similar issue? is there any workaround for this? Here is the property - ``` public int MaxOccurrences { get { return this.maxOccurrences; } set { if (this.maxOccurrences != value) { this.maxOccurrences = value; base.RaisePropertyChanged("MaxOccurrences"); } } } ``` Here is how I am binding the property in xaml - ``` <TextBox Text="{Binding Path=MaxOccurrences, Mode=TwoWay, NotifyOnSourceUpdated=True, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Center" Width="30" Margin="0,0,5,0"/> ```

Accepted Answer

I had the similar problem.

You just need to update the code as:

```
<TextBox Text="{Binding Path=MaxOccurrences, Mode=TwoWay, TargetNullValue={x:Static sys:String.Empty},
NotifyOnSourceUpdated=True,  UpdateSourceTrigger=PropertyChanged}"  
HorizontalAlignment="Center" Width="30" Margin="0,0,5,0"/> 
```

WPF binding not working properly with properties of int type

Solution

Problem