Server Error in '/onlinesearch' 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 21:             ' btnPrint.Attributes.Add("onClick", "OpenWindow();return false;")
Line 22:             
Line 23:             customSchoolHeader = LoadHeaderFromSchooolInfo(Session("schoolid"))
Line 24: 
Line 25:             If Session("aceware") = "yes" Then

Source File: C:\Websites\JER_New_Search\admin\Course_Display.aspx    Line: 23

Stack Trace:


[FormatException: Input string was not in a correct format.]
   Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat) +308
   Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value) +100

[InvalidCastException: Conversion from string "" to type 'Integer' is not valid.]
   Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value) +284
   Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(Object Value) +1348
   ASP.admin_course_display_aspx.Page_Load(Object sender, EventArgs e) in C:\Websites\JER_New_Search\admin\Course_Display.aspx:23
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4494.0