Have a trouble with DataSet

[nosebleed]

Form has dropdownlistbox.

I want add selected item from DDL to DataTable in dataset and assume it with DataGrid.

 

The first row adds normally, but when i add the second row grid consist only one row that i add last time.

For example:

1. choice is "ddd" --> in a grid one row "ddd"

2. choice is "lll" --> in a grid must be || "ddd" || "lll" ||

but there is only "lll" row in a grid.

code:

 

procedure TWebForm3.Button1_Click(sender: System.Object; e: System.EventArgs);

var nr:dataRow;

begin

nr:=datasetNew.Tables['new'].NewRow;

nr['name']:=DropDL.SelectedItem.Text;

dsNew.Tables['new'].Rows.Add(nr);

D_Grid.DataBind;

end;