Server Error in '/' Application.

Input string was not in a correct format.

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.FormatException: Input string was not in a correct format.

Source Error:


Line 15:         seo = SiteClass.getClassInfoDetail(1006);
Line 16:         newstype = SiteClass.getClassInfoList(20, 2600, 1010);
Line 17:         cid = Convert.ToInt32("0" + Request["cid"]);
Line 18:         cid = cid == 0 ? newstype[0].ClassId : cid;
Line 19:     }

Source File: c:\webhosting\data\En\new.aspx.cs Line: 17

Stack Trace:


[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +12838615
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +122
   System.Convert.ToInt32(String value) +48
   new.Page_Load(Object sender, EventArgs e) in c:\webhosting\data\En\new.aspx.cs:17
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4330.0