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 410:	stringaSQL = "SELECT product_id, product_category, product_subcategory, product_name, product_produttore, product_desc, product_price, product_sconto, product_label, product_picture, product_quantity"
Line 411:	stringaSQL = stringaSQL & " FROM products WHERE product_produttore = '"
Line 412:	stringaSQL = stringaSQL & marca.Replace("'", "''")
Line 413:	stringaSQL = stringaSQL & "' AND product_label = 1 "
Line 414:	stringaSQL = stringaSQL & "GROUP BY product_id, product_category, product_subcategory, product_name, product_produttore, product_desc, product_price, product_sconto, product_label, product_picture, product_quantity "

Source File: D:\inetpub\webs\manuelstoreit\marche.aspx    Line: 412

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   ASP.marche_aspx.BindData() in D:\inetpub\webs\manuelstoreit\marche.aspx:412
   ASP.marche_aspx.Page_Load(Object sender, EventArgs e) in D:\inetpub\webs\manuelstoreit\marche.aspx:109
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +85
   System.Web.UI.Control.OnLoad(EventArgs e) +79
   System.Web.UI.Control.LoadRecursive() +130
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2847


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0