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Forums > Ultra Media Gallery > General Questions
Subject: Failed to compare two elements in the array
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Author Messages
soona rai
Posts:1
New Member
10/04/2008 4:58 AM  
Hi everybody,


i create own module for image slides . the selected images will show in  flash slide using

 dotnetnuke4.2.8 .


I have critical error :

    when i click the sort options(button move up slide and move down slide) in my module .

    This error shown:

  "Failed to compare two elements in the array."

 I checked my source code . i didnt found any mistake in my source code.

So, Please check where i made mistake in my source or else.

This is my module source :

/********************************************/
  .ascx
       

        .ascx.cs
protected void Previous_Routine(object sender, CommandEventArgs e)
        {
            Controller obj = new Controller();
            List lstItems = objs.Gets(this.ModuleId);
            lstItems.Sort();
            int Sorter = 0;
            foreach (Info obj in lstItems)
            {
                obj.SortId = Sorter;
                objs.Update(obj);              
                Sorter++;
            }
            for (int i = 0; i < lstItems.Count; i++)
            {
                Info obj = (Info)lstItems[i]
                if (obj.ItemId == Convert.ToInt32(e.CommandArgument.ToString()))
                {
                    if (i == 0)
                    {
                        break;
                    }
                     obj.SortId--;
                     objs.Update(obj);                

                     obj = (Info)lstItems[i - 1]
                     obj.SortId++;
                     objs.Update(obj);                   
                }
            }

            //refresh cache
            SynchronizeModule();

            ExportXml(false);

            Response.Redirect(Request.Url.AbsoluteUri, true);
}


/****************************************************/

Please replay with good solution.

This help will  give 100% God Blessing.....


Thanks everybody
Pengtsen R
Posts:5179
10/04/2008 9:11 AM  
let me try to analyze your problem, you are going to sort a arraylist, and you get "Failed to compare two elements in the array." when run the sort code. your code is only a part of your control but please note to sort a arraylist you need to implement IComparer.Compare interface, did you?
Pengtsen R
http://www.bizmodules.net
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Forums > Ultra Media Gallery > General Questions > Failed to compare two elements in the array
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