in Microsoft.VisualBasic.CompilerServices.Conversions.ToString(Object Value)
in PWM_NET.NSC_Login.GetActivationCode(String InstallationCode)
in PWM_NET.NSC_Login.ManageMobileAppDownload()
in PWM_NET.NSC_Login.Page_Load(Object sender, EventArgs e)
Cast non valido dal tipo 'DBNull' al tipo 'String'. in Microsoft.VisualBasic.CompilerServices.Conversions.ToString(Object Value)
in PWM_NET.NSC_Login.GetActivationCode(String InstallationCode)
in PWM_NET.NSC_Login.ManageMobileAppDownload()
in PWM_NET.NSC_Login.Page_Load(Object sender, EventArgs e)
Cast non valido dal tipo 'DBNull' al tipo 'String'.