Object creation by using xaml fails RSS

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  ivanatilca

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  Re: Object creation by using xaml fails

  Jun 25, 2008 04:41 AM | LINK

  ssawchenko

  It may be because you are not giving the resources names?  I thought that with Silverlight 1.1 and above, all elements in a ResourceDictionary [including Storyboard] must have their x:Name set... I may be wrong though, I'll have to double check with the actual code tomorrow.
  

  Nop, "THIS" is refering to my USERCONTROL i am trying to add to my resources an animation i am creating in that case is the storyboard.... the thing is the Foreach ... i believe it is giving the same name to all my storyboard an can not give the same name ... but that's why i created the INDEX so i can create my names... or keys.... but even like that the error appears-.

   

  Ivana A. Tilca | Microsoft Student Partner | Channel 8 editor | Microsoft
  
  http://ivanatilca.com.ar
  
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  ivanatilca

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  Re: Re: Object creation by using xaml fails

  Jun 25, 2008 04:43 AM | LINK

  SteveWong

  ivanatilca: 

  What is the error giving?

  I cant see any problem with the lines

  But If i were you, I will write this

              var u = from element in LayoutRoot.Children
                      where element is UIElement
                      select element;
              foreach (var itm in u)
              {
                  myDoubleAnimation = new DoubleAnimation();
                  myDoubleAnimation.Duration = duration;
                  myDoubleAnimation.From = 0;

                  sbImageAppear = new Storyboard();
                  sbImageAppear.Duration = duration;
                  sbImageAppear.Children.Add(myDoubleAnimation);               

                  TimeSpan time = new TimeSpan(0, 0, 0, 0, timeCounter);
                  sbImageAppear.BeginTime = time;

                  Storyboard.SetTarget(myDoubleAnimation, ((UIElement)itm));
                  Storyboard.SetTargetProperty(myDoubleAnimation, new PropertyPath("(UIElement.Opacity)"));
                  myDoubleAnimation.To = opacity;              
                  this.Resources.Add(index.ToString(), sbImageAppear); 
                  sbImageAppear.Begin();
                  timeCounter = timeCounter + 200;
                  index++;
              }

   The error is in the line... this.Resources.Add(index.ToString(), sbImageAppear);  says i already have that key...
  

  Ivana A. Tilca | Microsoft Student Partner | Channel 8 editor | Microsoft
  
  http://ivanatilca.com.ar
  
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  SteveWong

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  Re: Re: Re: Object creation by using xaml fails

  Jun 25, 2008 04:58 AM | LINK

  If you do the second time, it is sure that a storyboard with the same key had been added

  So you have to remove it before adding it

  this.Resources.Remove(index.ToString());

  As I remember , It shouldnt throw any error even the key is not there

  Regards,
  SteveWong (HongKong)
  Please mark post as answer if they help you
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  ivanatilca

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  Re: Re: Re: Object creation by using xaml fails

  Jun 25, 2008 12:10 PM | LINK

  SteveWong

  If you do the second time, it is sure that a storyboard with the same key had been added

  So you have to remove it before adding it

  this.Resources.Remove(index.ToString());

  As I remember , It shouldnt throw any error even the key is not there

  Yes! That's it! Thanks!!!! The final code....

  if (this.Resources.Contains(index.ToString()))
  {
                      this.Resources.Remove(index.ToString());
   }
  this.Resources.Add(index.ToString(), sbImageAppear);

  Ivana A. Tilca | Microsoft Student Partner | Channel 8 editor | Microsoft
  
  http://ivanatilca.com.ar