foreach ImageButton parse Cast problem RSS

• • Reply
  

  chjones2008

  Member

  258 Points

  168 Posts

  foreach ImageButton parse Cast problem

  Dec 30, 2012 10:28 PM|LINK

  I get the following error.

  foreach statement cannot operate on variables of type 'System.Web.UI.WebControls.Panel' because 'System.Web.UI.WebControls.Panel' does not contain a public definition for 'GetEnumerator'

  The following error is where i put "?????" below.

  I have image buttons in a panel and im trying to parse through each imagebutton and if its not the imagebutton you click i want to change how it appears like the border of the imagebutton

   void img_Click(object sender, ImageClickEventArgs e)
      {
          ImageButton ib = (ImageButton)sender;
          string imgUrl = ib.ImageUrl;
  
          MainImage.ImageUrl = imgUrl;
  
          ib.BorderColor = Color.Black;        
          ib.BorderWidth = 3;
  
          foreach(ImageButton imgBtn in pnlImgList.?????)
          {
              if (imgBtn.ImageUrl != imgUrl)
              {
                  imgBtn.BorderColor = Color.Transparent;
                  imgBtn.BorderWidth = 0;
              }
              else
              {
                  imgBtn.BorderColor = Color.Black;
                  imgBtn.BorderWidth = 3;
              }
          }
          
      }

  So then i try this

  foreach(ImageButton imgBtn in pnlImgList.Controls)
          {
              if (imgBtn.ImageUrl != imgUrl)
              {
                  imgBtn.BorderColor = Color.Transparent;
                  imgBtn.BorderWidth = 0;
              }
              else
              {
                  imgBtn.BorderColor = Color.Black;
                  imgBtn.BorderWidth = 3;
              }
          }

  and I get this error

  Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.ImageButton'.

  Does anyone know what I'm suppose to put after pnlImgList.  ???
  
  
  

  • Moved by MetalAsp.Net on Dec 30, 2012 11:05 PM
• • Reply
  

  oned_gk

  All-Star

  35710 Points

  7292 Posts

  Re: foreach ImageButton parse Cast problem

  Dec 30, 2012 11:29 PM|LINK

  Try this

  foreach (Control c in pnlImgList.Controls)
          {
              if (c is ImageButton)
              {
  
              }
          }

  Programming to simplify, dont look for hard way
  Suwandi - Non Graduate Programmer
  • Edited by oned_gk on Dec 30, 2012 11:30 PM
  • Marked as answer by chjones2008 on Dec 30, 2012 11:38 PM
• • Reply
  

  chjones2008

  Member

  258 Points

  168 Posts

  Re: foreach ImageButton parse Cast problem

  Dec 30, 2012 11:54 PM|LINK

  FYI full working code ...

  void img_Click(object sender, ImageClickEventArgs e)
      {
          ImageButton ib = (ImageButton)sender;
          string imgUrl = ib.ImageUrl;
          string imageUrlIndex = ib.ID;
  
          MainImage.ImageUrl = imgUrl;
  
          ib.BorderColor = Color.Black;        
          ib.BorderWidth = 3;
  
          foreach (Control c in pnlImgList.Controls)
          {            
              if (c is ImageButton)
              {
                  ImageButton ib2 = (ImageButton)pnlImgList.FindControl(c.ID);
                  if (c.ID != imageUrlIndex)
                  {                    
                      ib2.BorderColor = Color.Transparent;
                      ib2.BorderWidth = 0;
                  }
                  else
                  {
                      ib2.BorderColor = Color.Black;
                      ib2.BorderWidth = 3;
                  }  
              }                                                                     
          }        
      }

  • Marked as answer by Steven Cheng - MSFT on Jan 08, 2013 08:59 AM