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Subject: Failed to compare two elements in the array

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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:11533

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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