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 313:
Line 314:        string cType = Page.RouteData.Values["CType"].ToString();
Line 315:        int cId = int.Parse( Page.RouteData.Values["CId"].ToString());
Line 316:
Line 317:        DBConnection.MyCommand.Parameters.AddWithValue("@CId", cId);

Source File: c:\Domains\125841\lda.academy\wwwroot\Course.aspx.cs    Line: 315

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.Int32.Parse(String s) +26
   Course.GetCId() in c:\Domains\125841\lda.academy\wwwroot\Course.aspx.cs:315
   Course.Page_Load(Object sender, EventArgs e) in c:\Domains\125841\lda.academy\wwwroot\Course.aspx.cs:55
   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:4.8.4494.0