Question

I would like to create a list of objects in which there is a generic list.

So what I have is this object:

public class agieDBColumn<dataTp> where dataTp:IComparable{
 private string _header;
 private string _longHeaderName;
 private List<dataTp> _data;

 public string header {
  get { return _header; }
  set { _header = value; }
 }

 public string longHeaderName {
  get { return _longHeaderName; }
  set { _longHeaderName = value; }
 }

 public List<dataTp> data {
  get { return _data; }
  set { _data = value; }
 }

}

And this is how I would like to use it:

List<DBColumn> columns;

Then I would like to add new instances to the list “columns” specifying the type.

There does not seem to be a syntaxs that allows this though as I get “Error 1 Using the generic type Picker.DBColumn<dataTp> requires 1 type arguments Frm.cs 56 9 FCAgieStratPicker
” when trying to define the type of List I would like.

Is this even possible? Or would I need to use the base class object in this case?

Maybe there is a better way to handle the data I would like to represent in memory.

Answer 1

It seems what you eventually want to achieve is already provided by the System.Data.DataTable class.

Adding columns:

DataTable dataTable = new DataTable();
DataColumn column = dataTable.Columns.Add(header, type);
column.Caption = longHeaderName;

Adding rows:

dataTable.Rows.Add(someIntValue, someStringValue, ...)