Home / Community & Support / Developer Productivity Tools Forums / WPF > General Discussions > binding doesnt work for the first time

• CEM

  Posted on Dec 26, 2011 (permalink)

  hi there,
  
  in row_loaded method, we create a multibinding for background. converter is not called in first run.
  

  -populate table (set binding in row_loaded)

  -set background on viewmodel

  -converter not called.

  -clear table

  -populate table (again create binding)

  -set background, then it is called.
  
  While in debug, when I checked PropertChanged.Target, in first run it is System.ComponentModel.PropertyChangedEventManager  (doesnt work),
  and in the second run, it is Telerik.Windows.Data.WeakEvent.WeakListener<System.ComponentModel.PropertyChangedEventArgs>.
  
  
  Telerik version : 2011.1.411.40

  
  

  MultiBinding multiBindingBackground = new MultiBinding();

                          multiBindingBackground.Converter = cellColorConverter;

   

   

                          Binding background = new Binding("Background");

                          background.Source = row.Item;                       

                          background.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;

                          //background.Mode = BindingMode.TwoWay;

                          multiBindingBackground.Bindings.Add(background);

                          multiBindingBackground.Bindings.Add(rcBinding);

                          Binding isBackgroundForBackground = new Binding();

                          isBackgroundForBackground.Source = true;

                          multiBindingBackground.Bindings.Add(isBackgroundForBackground);

                          multiBindingBackground.Bindings.Add(new Binding());

                          cellBase.SetBinding(GridViewCellBase.BackgroundProperty, multiBindingBackground);

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Home / Community & Support / Developer Productivity Tools Forums / WPF > General Discussions > binding doesnt work for the first time