Question

I have a datatable with two columns. I want to store the rows of each column in an array so that I can return rows for each individual column. This way I believe I can populate a list box(the option text as one column and the option value as the other column).

Here is what I started out with:

public object dbAccess2()
{
    ArrayList arg = new ArrayList();
    DataTable myTable = GenericDataAccess.ExecuteSelectCmd("Vehicle_GetMakes");


        foreach (DataRow dRow in myTable.Rows)
        {
            arg.Add(dRow["VehicleMake"]);
            arg.Add(dRow["VehicleMakeId"]);
        }

    return arg.ToArray();   
}

Answer 1

You can make a class to hold each individual row in this case and use a List<T> to hold the data, like this:

public class Vehicle
{
    public string Make { get, set };
    public string MakeId { get, set };
}

..

List<Vehicle> Vehicles = new List<Vehicle>();

..

foreach (DataRow dRow in myTable.Rows)
{
    Vehicles.Add(
        new Vehicle {
            Make = arg.Add(dRow["VehicleMake"]),
            MakeId = arg.Add(dRow["VehicleMakeId"])
        });
}

And later, you can easily populate a listbox with this list:

listBox.DataSource = Vehicles;
listBox.DisplayMember = "Make";

But I think you may want to use a ListView probably.