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RadExpander.IsExpanded Binding

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Martin Søberg
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Martin Søberg asked on 11 Feb 2010, 07:28 AM

I've just switched to telerik and are replacing my elements.

My problem is that the normal expander works and the telerik doesnt..  I've placed them next to each other in the code, to validate this.

 

<Expander IsExpanded="{Binding Path=IsExpanded}"></Expander> 
 
<Telerik:RadExpander IsExpanded="{Binding Path=IsExpanded}" ></Telerik:RadExpander> 
 

Bound to

private bool _isExpanded = true;  
public bool IsExpanded  
{  
   get { return _isExpanded; }  
   set 
   {  
       _isExpanded = value;  
       //Some code  
   }  

Is this the wrong way to do it?

- Martin

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Martin Søberg
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answered on 11 Feb 2010, 07:36 AM


Answer:

<Expander IsExpanded="{Binding Path=IsExpanded}"  Margin="0" Padding="0"></Expander> 
<Telerik:RadExpander IsExpanded="{Binding Path=IsExpanded, Mode=TwoWay}" ></Telerik:RadExpander> 

a bit odd.

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Steve
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answered on 18 Oct 2013, 03:07 PM
You also forgot that you property should be in a class (View model) that inherit of INotifyPropertyChanged like 
Telerik.Windows.Controls.ViewModelBase and call this.OnPropertyChanged(() => this.IsExpanded);



private
 bool _isExpanded = true;  
public bool IsExpanded  
{  
   get { return _isExpanded; }  
   set 
   {  
       _isExpanded = value;  
       this.OnPropertyChanged(() => this.IsExpanded);
   }  
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Martin Søberg
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Answers by
Martin Søberg
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Steve
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