Error, cannot find OleDb [* Resolved *]

[steve_rm]

Hello

I have a problem with the following code. It gives an error saying that the OleDb could not be found. I have included using System.OleDb at the top of my form. But still get the error.

cnnTeacher.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\IBS Library System\LibrarySystem.mdb;Persist Security Info=False";
 
                OleDbCommand cmdTeacher = cnnTeacher.CreateCommand();
                cmdTeacher.CommandText = "Select * From Teacher Where TeacherID = txtIDNumber.text";
 
                cmdTeacher.Parameters.Add("ID", OleDb.VarWChar, 40).Value = txtIDNumber.Text; //OleDb could not be found
                OleDbDataAdapter daTeacher = new OleDbDataAdapter(cmdTeacher);
                OleDbCommandBuilder cbTeacher = new OleDbCommandBuilder(daTeacher);
 
                daTeacher.Fill(dtTeacher);

Many thanks in advance,

Steve