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 97:         baglanti.Open()
Line 98:         Dim emir As New SqlCommand("select resim from bravomed_distributor where marka=@a", baglanti)
Line 99:         emir.Parameters.Add("@a", marka.ToString)
Line 100:        Dim oku2 As SqlDataReader
Line 101:        oku2 = emir.ExecuteReader

Source File: C:\Inetpub\vhosts\bravomed.com.tr\httpdocs\urun.aspx.vb    Line: 99

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   urun.bilgiler() in C:\Inetpub\vhosts\bravomed.com.tr\httpdocs\urun.aspx.vb:99
   urun.Page_Load(Object sender, EventArgs e) in C:\Inetpub\vhosts\bravomed.com.tr\httpdocs\urun.aspx.vb:13
   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:4.8.4690.0