custom control doesn't fire button clicks event RSS

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  karanfil.sam...

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  2 Posts

  custom control doesn't fire button clicks event

  Jan 23, 2013 06:42 AM|LINK

  When I write down code , ButtonClicks doesn't fire.

  Can I catch up clicks event.

   

  [DefaultProperty("Text")]
      [ToolboxData("<{0}:İmageListControl runat=server></{0}:İmageListControl>")]
      public class İmageListControl : Panel,IPostBackEventHandler,IPostBackDataHandler
      {
  
          //properties
          private List<İmageLink> links = null;
          public List<İmageLink> Links
          {
              get
              {
                  if (links==null)
                  {
                      links = new List<İmageLink>();
                      return links;
                  }//if
                  return links;
              }//get
          }//prop
  
          public İmageListControl()
          {
              this.ScrollBars = System.Web.UI.WebControls.ScrollBars.Horizontal;
          }//ctor
  
          protected override object SaveViewState()
          {
              ArrayList liste = new ArrayList();
              liste.Add(base.SaveViewState());
              liste.Add(Links);
              return liste;
          }//func
  
          protected override void LoadViewState(object savedState)
          {
              if (savedState!=null)
              {
                  ArrayList liste=(ArrayList)savedState;
                  base.LoadViewState(liste[0]);
                  links = liste[1] as List<İmageLink>;
              }//if
          }//func
  
          protected override void CreateChildControls()
          {
              base.CreateChildControls();
              this.Controls.Clear();
              int sayac = 0;
              foreach (İmageLink i in Links)
              {
                  sayac++;
                  Panel p = new Panel();
                  p.ID = "pnl_" + sayac;
                  p.Height = p.Width = 150;
                  Image img = new Image();
                  img.ID = "img_" + sayac;
                  img.ImageUrl = i.Url;
                  img.Height = img.Width = 100;
                  Button b = new Button();
                  b.ID = "btn_" + sayac;
                  b.CommandArgument = i.Name;
                  b.Width = 50;
                  b.Height = 50;
                  b.Text = "Delete";
                  b.Click += new EventHandler(BtnClick);
                  p.Controls.Add(img);
                  p.Controls.Add(b);
                  this.Controls.Add(p);
              }//foreach
              ChildControlsCreated = true;
          }//func
  
          protected void BtnClick(object sender, EventArgs e)
          {
  
          }//func
  
          protected override void RenderContents(HtmlTextWriter writer)
          {
              writer.AddAttribute(HtmlTextWriterAttribute.Width, "1000");
              writer.AddAttribute(HtmlTextWriterAttribute.Height, "200");
              writer.RenderBeginTag(HtmlTextWriterTag.Table);
              writer.RenderBeginTag(HtmlTextWriterTag.Tr);
              foreach (Control item in this.Controls)
              {
                  writer.RenderBeginTag(HtmlTextWriterTag.Td);
                  item.RenderControl(writer);
                  writer.RenderEndTag();
              }//foreach
              writer.RenderEndTag();
              writer.RenderEndTag();
  
          }//func
  
          protected override void OnLoad(EventArgs e)
          {
              base.OnLoad(e);
          }//func
  
          public void RaisePostBackEvent(string eventArgument)
          {
  
          }//func
  
          public bool LoadPostData(string postDataKey, System.Collections.Specialized.NameValueCollection postCollection)
          {
              return true;
          }//func
  
          public void RaisePostDataChangedEvent()
          {
          }//func
      }//class
  
      [Serializable()]
      public class İmageLink
      {
          private string url;
          
          public string Url
          {
              get { return url; }
              set { url = value; }
          }//prop
  
          private string name;
  
          public string Name
          {
              get { return name; }
              set { name = value; }
          }//prop
      }//class

   

  ;

• • Reply
  

  Decker Dong ...

  All-Star

  118619 Points

  18779 Posts

  Re: custom control doesn't fire button clicks event

  Jan 25, 2013 01:12 AM|LINK

  Hi,

  I cannot re-produce your issue, would you mind please submitting your whole proj to SkyDrive (only the control and your page that refers the control)?

• • Reply
  

  karanfil.sam...

  0 Points

  2 Posts

  Re: custom control doesn't fire button clicks event

  Jan 28, 2013 10:18 AM|LINK

  Issue solved when deriving from composite control.

  • Marked as answer by decker dong - msft on Jan 29, 2013 01:20 AM