Server Error in '/' Application.

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

Source Error:


Line 21: 	subdir = tourtype.Length>0 ? tourtype.Substring(0,tourtype.Length-1) : "";
Line 22: 	imglist = getImagesArrayList(baseimgdir + tour);
Line 23: 	img = (Request["img"]==null || Request["img"]=="") ? (string) imglist[0] : (string) Request["img"];
Line 24: 		
Line 25: 	DataBind();

Source File: i:\#FTP\Websites\TahoeProRoofing\gallery.aspx    Line: 23

Stack Trace:


[ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index]
   System.Collections.ArrayList.get_Item(Int32 index) +14814396
   ASP.gallery_aspx.Page_Load(Object Src, EventArgs E) in i:\#FTP\Websites\TahoeProRoofing\gallery.aspx:23
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4087.0