ADO.NET :: Selecting Custom Columns To Bind Dropdown From A Generic List?
Feb 18, 2011
I have been facing this problem for a while now, what I exactly want to do is ->
I have a 3- Tier Application. For a table (say Employee) I have following classes in my BLL and DAL
1. Employee.cs (Contains database fields as properties)
2. EmployeeKeys.cs
3. EmployeeFactory.cs (Main BLL which make call to DAL method)
4. EmployeeDAL.cs (The DAL)
Suppose I have 6 columns in Employee table.
I know that the DAL returns List<Employee> to the BLL and then the BLL in turn gives me the Employee fields.
I have no problem accesing it.
But suppose I have a dropdownlist control and wish to bind EmplyeeName and EmployeeId with the Dropdown.
Is there any way that I can implement that my DAL returns a Generic list containing only the two fields required to bind the Dropdown.
In short i want my list to return only 2 columns, not all the 6 like the List<Employee>
How do i implement this???
Do I need to create a custom List<CustomEmployeeData>, if so how can i implement it in the 3 tier application.
Basically i m looking to increase the efficiency by getting less data from database. Am i on the right track????
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[code]....
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