Object Reference not set to an Instance of an Object

where does this get instantiated? most likely the name server property is null at that point.

by this i mean

hillContentDB...

sorry

how can I instantiate hillContentDB?  I made a derived class of a SPContentDB class from Sharepoint.  So, what I have is the following in the derived class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint.Administration;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using System.Collections.Generic;
using System.Data;
using System.Security;
using Microsoft.SharePoint.Administration.AccessControl;

namespace SiteCreateVisualWebPartSolution.VisualWebPart1
{
    class HillSpDatabase: SPDatabase
    {
        static void Main()
        {
            SPDatabase dBase = new SPDatabase();

           

           
        }

         public void GrantAccess(System.Security.Principal.SecurityIdentifier securitykey)
        {
            base.GrantAccess(securitykey);
        }
    }
}

Can't find any Server property in your HillSPDatabase class, is it a part of SPDatabase, if yes can we set empty string to Name as you have done...

where the code for Server property and its Name Property's Set Method and how does they behave....

HillSPDatabase class is derived from SPDatabase Sharepoint class.  The reason why I derived the SPDatabase class with HillSPDatabase class is because I wanted to be able to use the adduser protected method from SPDatabase class.  Are you wanting me to set the string name to empty in the HillSPDatabase class or in the code where I declare the HillSPDatabase variable as HillContentDB?

you are using default constructor of SPDatabase. As your class contains no constructor, it will automatically call base class's Default constructor.

This doesn't set the Server(SPServer type) property.
You need to use the one with SPDatabaseParameters option.

See Here:-

http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.administration.spdatabase.spdatabase.aspx
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.administration.spdatabaseparameters_members.aspx

Seems that The Server Property of SPDatabase is null, reason why it is giving you object reference not set.. error...

so what do I do?  Can you tell me where in my code I should change or correct?

I added the following to my base HillSpdatabase class:

 public HillSpDatabase();

        public HillSpDatabase(SPDatabaseParameters parameters);

        public HillSpDatabase(string name, SPDatabaseServiceInstance serviceInstance);

so now my class looks like the following...



using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint.Administration;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using System.Collections.Generic;
using System.Data;
using System.Security;
using Microsoft.SharePoint.Administration.AccessControl;

namespace SiteCreateVisualWebPartSolution.VisualWebPart1
{
    class HillSpDatabase: SPDatabase
    {
        static void Main()
        {
            SPDatabase dBase = new SPDatabase();

           
         
           
        }

        public HillSpDatabase();

        public HillSpDatabase(SPDatabaseParameters parameters);

        public HillSpDatabase(string name, SPDatabaseServiceInstance serviceInstance);
       
       
         public void GrantAccess(System.Security.Principal.SecurityIdentifier securitykey)
        {
            base.GrantAccess(securitykey);
        }
    }
}

looks ok, just use constructors with parameters, supply the values and it will work fine, trust me....

I never worked with SPDatabaseParameters type before.  So say I want to pass the following parameters:

server name = srv1
datbase name = dbn1
userid = dbcreator
password = pass123!

How would I pass these parameters to the SPDatabaseParameters so that it is able to use the parameter?

How would I pass the parameter strings, I'm not sure how it works?