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 26:         meupdDAL pdDAL = new meupdDAL();
Line 27:         productcat pd = pdDAL.FindByCondition(c => c.id.Equals(id)).FirstOrDefault();
Line 28:         return pd.url;
Line 29:     }
Line 30:     protected List<product> getdetail()

Source File: d:\vhosts\shopgao.vn\httpdocs\pddetail.aspx.cs    Line: 28

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   pddetail.Geturlcat(String id) in d:\vhosts\shopgao.vn\httpdocs\pddetail.aspx.cs:28
   ASP.pddetail_aspx.__RenderContent2(HtmlTextWriter __w, Control parameterContainer) in d:\vhosts\shopgao.vn\httpdocs\pddetail.aspx:23
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +88
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +25
   System.Web.UI.Control.Render(HtmlTextWriter writer) +10
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +52
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +198
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +27
   ASP.masterpage_master.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in d:\vhosts\shopgao.vn\httpdocs\MasterPage.master:362
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +88
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +25
   System.Web.UI.Control.Render(HtmlTextWriter writer) +10
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +52
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +198
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +27
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +189
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +25
   System.Web.UI.Page.Render(HtmlTextWriter writer) +30
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +52
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +198
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +27
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5792


Version Information: Microsoft .NET Framework Version:2.0.50727.9061; ASP.NET Version:2.0.50727.9062