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 44:             //读取某个栏目的SEO设置信息
Line 45:             ClientColumnSEO clientcolumnseo = common.showColumnSEO(intClassID);
Line 46:             if (clientcolumnseo.ColumnTitle.Length > 0)
Line 47:             {
Line 48:                 this.Title = clientcolumnseo.ColumnTitle;

Source File: c:\webhosting\data\About.aspx.cs    Line: 46

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Content.Page_Load(Object sender, EventArgs e) in c:\webhosting\data\About.aspx.cs:46
   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