Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 269: case "rules": Line 270: var queryRules = (from m in db.Rules4 where m.ID == ContentID select m).FirstOrDefault(); Line 271: ltContents.Text = queryRules.Contents; Line 272: //lblPageName.Text = "بانک قوانین و مقررات"; Line 273: pnlchart.Visible = false;

Source File: c:\inetpub\vhosts\ashayer-bushehr.ir\httpdocs\Do.aspx.cs    Line: 271

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.] Do.ShowContents(Int32 ContentID, String Key) in c:\inetpub\vhosts\ashayer-bushehr.ir\httpdocs\Do.aspx.cs:271 Do.Page_Load(Object sender, EventArgs e) in c:\inetpub\vhosts\ashayer-bushehr.ir\httpdocs\Do.aspx.cs:30 System.Web.UI.Control.OnLoad(EventArgs e) +107 System.Web.UI.Control.LoadRecursive() +89 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1532


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