How to Pass MouseEvents Generated in Child to its Container

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  13 years ago

  by chike_udu

  chk

  , Kenya

  Joined 13 years ago

  I have a Label contained in another Label

  Class MyLabel
  {
   public MyLabel()
   {
    Label innerLabel = new Label();
    this.Controls.Add(innerLabel);
   }
  }

  MyLabel outerLabel = new MyLabel();
  Now If I Do outerLabel.MouseUp += MyHandler

  Now MyHandler would not be invoked because everytime I Click over outerLabel Mouse Events would be generated on the innerLabel and not on the OuterLabel. So what modifications do I need to make to innerLabel(or OuterLabel) so that the InnerLabel passes MouseEvents to its Container OuterLabel.

  Thanks...

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  13 years ago

  by jmcilhinney

  John McIlhinney

  Sydney, Australia

  Joined 15 years ago

  Your class should be handling the relevant events of the child control and then behaving appropriately.  For instance, your class can handle the Label's Click event and then call its OnClick method to raise its own Click event.  With Click there's no issue but just make sure that if the 'e' argument contains any data that you perform the appropriate translation.   The MouseClick event would be an example of where that would be required, with the X and Y properties initially being relative to the child control.  You'd have to create a new MouseEventArgs object and provide translated coordinates.
  

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  13 years ago

  by chike_udu

  chk

  , Kenya

  Joined 13 years ago

  Thanks for the Reply jmcilhinney, I've got the Click Event Working Fine
  I think you've got my question correctly. I was also thinking along similar lines just could not find right methods.

  So this is how I'm doing it

  class YoLabel{

  this.textLabel = new TextLabe();

  this.textLabel.Click +=delegate(object o, EventArgs ev){

   

      this.OnClick(null);

   

  };

  this.textLabel.MouseUp +=delegate(object o, MouseEventArgs mev){

  mev = changeCoords(mev) 

  this.OnMouseUp(ev);

  };

   and then handle MouseUp on my YoLabel as

  yoLabel.MouseUp += myHandler

  BTW. YoLabel is a nice SMOOTH SCROLLING Label with Circular Edges with Transparency Adjustable Background and Gradient Painting.
  Interested then visit http://geocities.com/sukhjinder_friend/letsyo.html or http://sourceforge.net/projects/letsyo to see YoLabel in action

  Thanks...

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