Hello,

I am a novice .net user and I am trying to implement a dotnet based messenger application into my site. I am trying to integrate it into my existing database so that users can logon using their existing accounts. The application provides an example for integration into dotnetnuke like this

*******************


Public Overrides Function GetUserDisplayName(ByVal useruniquename As String) As String
     Return GetUser(useruniquename).UserName
End Function

Protected Function GetUser(ByVal uniquename As String) As DotNetNuke.Entities.Users.UserInfo
     Dim userid As Integer = Integer.Parse(uniquename)
     Dim ps As DotNetNuke.Entities.Portals.PortalSettings = CType(System.Web.HttpContext.Current.Items("Portal Settings"), DotNetNuke.Entities.Portals.PortalSettings)
     Return New DotNetNuke.Entities.Users.UserController().GetUser (ps.PortalId, userid)
End Function

Public Overrides Function ListUserUniqueName() As String()
    Dim ps As DotNetNuke.PortalSettings = CType(System.Web.HttpContext.Current.Items("Portal Settings"), DotNetNuke.PortalSettings)
    Dim names As New System.Collections.ArrayList
    For Each user As DotNetNuke.UserInfo In New DotNetNuke.UserController().GetUsers(ps.PortalId, "")
        names.Add(user.UserID.ToString())
    Next
    Return CType(names.ToArray(GetType(String)), String())
End Function


Public Overrides Function IsAdministrator(ByVal useruniquename As String) As Boolean
        Dim user As DotNetNuke.UserInfo = GetUser(useruniquename)
        If user.IsSuperUser Then
            Return True
        End If

        Dim ps As DotNetNuke.PortalSettings = CType(System.Web.HttpContext.Current.Items("Portal Settings"), DotNetNuke.PortalSettings)
        Dim roles() As String = New DotNetNuke.RoleController().GetRolesByUser(user.Us erID, ps.PortalId)

        For Each roleid As String In roles
            Dim role As DotNetNuke.RoleInfo = New DotNetNuke.RoleController().GetRole(Integer.Parse( roleid))
            If (role.RoleName = "Administrators") Then
                Return True
            End If
        Next

        Return False
End Function

public override string[] SearchUserUniqueNameByDisplayName(string userDisplaName)
{
    if(userDisplaName==null||userDisplaName=="")return new string[0];
    userDisplaName = userDisplaName.ToLower();

    AdminDB admin = new AdminDB();
    SqlDataReader reader = admin.GetUsers();

    ArrayList names = new ArrayList();
    while(reader.Read())
    {
       try
       {
          string val= reader.GetString(1);
          if(val.ToLower().IndexOf(userDisplaName)!=-1)
             names.Add(val);
       }
       catch{}
    }
    return (string[])names.ToArray(typeof(string));
}




Now to integrate it inot my system it just says that:


Derive a class from the CuteSoft.Chat.DataProvider abstract base class and name it MyDataProvider.

public class MyDataProvider : CuteSoft.Chat.DataProvider { }

To provide a complete implementation, we will need to provide overrides for all of the methods and properties of the CuteSoft.Chat.DataProvider class as followings:



Method
 Description

public override string GetUserDisplayName(string uniquename)
 Return user's display name.

public override string[] ListUserUniqueName()
 Retrieves all the user's unique names in the database.

public override bool IsAdministrator(string useruniquename)
 Check the user is an administrator or not.

public override string[] SearchUserUniqueNameByDisplayName(string name)
 Return an array of user names containing the input string.



Create a class which implements the CuteSoft.Chat.UserAdapter interface and name it MyUserAdapter.

public class MyUserAdapter : CuteSoft.Chat.UserAdapter { }


To provide a complete implementation, we will need to provide overrides for the method of the CuteSoft.Chat.UserAdapter class as followings:

public override string GetUserUniqueName(System.Web.HttpContext context)




My database name is MainUsers and table is UserInfo. Username field is Username and Password field is Password. Can somebody show me how to write my own dataprovider fo this thing. I have been trying to get this last three weeks now.

Thank you in advance