Server Error in '/' Application.

Data is Null. This method or property cannot be called on Null values.

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.Data.SqlTypes.SqlNullValueException: Data is Null. This method or property cannot be called on Null values.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[SqlNullValueException: Data is Null. This method or property cannot be called on Null values.]
   System.Data.SqlClient.SqlBuffer.get_Int32() +135
   ASP.views_navigator_barmenu_ascx.<OnInit>b__1(SqlDataReader r) +470
   W7ML.<>c__DisplayClass3.<ExecSqlAsync>b__0(SqlDataReader r) +83
   W7ML.DataAccess.ExecReader(Action`1 handler) +86
   W7ML.DataAccess.ExecSqlAsync(String connection) +277
   ASP.default_aspx.Page_Load(Object sender, EventArgs e) +2513
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +154
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4082


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0