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 301:    protected void SetTitle()
Line 302:    {
Line 303:        string title = product.SEOTitle;
Line 304:        string description = product.SEODescription;
Line 305:        string keyword = product.SEOKeyword;

Source File: c:\Website\pianotiendat.vn\ProductDetails.aspx.cs    Line: 303

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   ProductDetails.SetTitle() in c:\Website\pianotiendat.vn\ProductDetails.aspx.cs:303
   ProductDetails.Page_Load(Object sender, EventArgs e) in c:\Website\pianotiendat.vn\ProductDetails.aspx.cs:35
   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:4.8.4682.0