How to store database resultset? - vb.net

Question

I want to know which is the best way to store database value in vb.net, For example, I've this code:
Dim conn As MySqlConnection = Connection() 'Return a connection obj
conn.Open()
Dim transaction = conn.BeginTransaction
Dim cmd = New MySqlCommand("SELECT * FROM tb ORDER BY ID")
Dim ResultSet = Cmd.ExecuteReader
If ResultSet.HasRows Then
Do While ResultSet.Read
'Here the value should be store
Loop
End if
How you can see I take all table from my database, now I want store each records in a structure that allow me to access it like the table. An array is good for do this? A list? Which is the best way?

Answer 1

There is no best way. You have different options. For example:
As an option you can use a DataTable
Also you can store values in a generic List(Of T).
If you prefer working with DataTable it will be more simple to use DataAdapter to fill the DataTable. This way you can also create your List(Of T) from your DataTable.
Example of Using DataDapter to fill DataTable
Dim Connection = "Connection String"
Dim Command = "SELECT * FROM Category"
Dim Adapter = New SqlDataAdapter(Command, Connection)
Dim Table = New DataTable()
Adapter.Fill(Table)
This way the DataTable will have columns with name of columns in your result set.
Also you can fill your data in a List(Of T) using the DataTable this way:
Dim ListOfCategory = Table.Rows.Cast(Of DataRow) _
.Select(Function(Row)
Return New Category With
{
.Id = Row.Field(Of Integer)("Id"),
.Name = Row.Field(Of String)("Name")
}
End Function).ToList()
Note
If can change the way you are writing your application, you can use Entity Framework as a good option to work with data.