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 148:        cmdSel.Parameters.Add(new SqlParameter("@ID", selectedId));
Line 149:
Line 150:        isAlbum = (bool)cmdSel.ExecuteScalar();
Line 151:
Line 152:        if (isAlbum)

Source File: d:\Inetpub\vhosts\saffarian.ws\httpdocs\Articles.aspx.cs    Line: 150

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Articles.LoadPictureAlbum(Object selectedId, SqlConnection conn, SqlDataAdapter da) in d:\Inetpub\vhosts\saffarian.ws\httpdocs\Articles.aspx.cs:150
   Articles.Repeater_Binding(Object selectedId) in d:\Inetpub\vhosts\saffarian.ws\httpdocs\Articles.aspx.cs:237
   Articles.Page_Load(Object sender, EventArgs e) in d:\Inetpub\vhosts\saffarian.ws\httpdocs\Articles.aspx.cs:44
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3770.0