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 140:            //strSlide = GetSliding();
Line 141:			int intGroupNo = 0;
Line 142:            int.TryParse(Request.QueryString[0].ToString(), out intGroupNo);
Line 143:			
Line 144:            BindGrid(intGroupNo);

Source File: d:\inetpub\mrcarmats.co.uk\httpdocs\car-mats.aspx.cs    Line: 142

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
   System.Collections.Specialized.NameValueCollection.GetKey(Int32 index) +19
   System.Web.HttpValueCollection.Get(Int32 index) +26
   WebForm1.Page_Load(Object sender, EventArgs e) in d:\inetpub\mrcarmats.co.uk\httpdocs\car-mats.aspx.cs:142
   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:4.7.4081.0