C#.NET Business Logic Layer Class example

//here is the example of business logica layer class

public class UserBll
{
#region Private Memebers
private DashBoardData.UserData _objUserData;
private DashBoardCollection.UserCollection _objUserCol;
#endregion
#region Methods
public UserBll()
{
}
public UserBll(DashBoardCollection.UserCollection obj)
{
_objUserCol = obj;
}
#endregion
#region Methods
public void Add()
{
_objUserData = new DashBoardData.UserData(this._objUserCol);
_objUserData.Operation(DashBoardData.OpertaionType.Add);
}
public void Update()
{
_objUserData = new DashBoardData.UserData(this._objUserCol);
_objUserData.Operation(DashBoardData.OpertaionType.Update);
}
public void Delete()
{
_objUserData = new DashBoardData.UserData(this._objUserCol);
_objUserData.Operation(DashBoardData.OpertaionType.Delete);
}
public Boolean CheckUserLogin()
{
_objUserData = new DashBoardData.UserData(this._objUserCol);
return _objUserData.CheckUserLogin();
}
#endregion
}