Minor adjustment needed!

Question

i got this piece of code i need someone to do a minor modification for me. Its from searching a datagrid and i need a message box to appear when the record is not found: private void btnSearch_Click(object sender, System.EventArgs e) { // Verify that the user typed test to search for. if(txtSearch.Text == "") { MessageBox.Show("Enter some criteria to find."); txtSearch.Focus(); } else { // Create a SqlCommand OleDbCommand oleDbSelectCommand1 = oleDbConnection1.CreateCommand(); oleDbSelectCommand1.CommandType = CommandType.Text; oleDbSelectCommand1.CommandText = "SELECT * FROM Students"; // Use the Select method to get a **sorted** array of DataRows { DataRow[] adr = ds.Tables["Students"].Select( "FirstName = '" + txtSearch.Text + "'",""); // Dump the result to the user interface lbStudents.Items.Clear(); foreach(DataRow dr in adr) { //******************FORMATTING LISTBOX*********** //////////////////////////////////////////////// //////////////////////////////////////////////// lbStudents.Items.Add(""); lbStudents.Items.Add("Student ID : " + dr[5]); lbStudents.Items.Add("First Name : " + dr[3]); lbStudents.Items.Add("Last Name : " + dr[1]); lbStudents.Items.Add("Address : " + dr[0]); lbStudents.Items.Add("Phone : " + dr[4]); lbStudents.Items.Add("GPA : " + dr[2]); lbStudents.Items.Add(""); //////////////////////////////////////////////// //////////////////////////////////////////////// //////////////////////////////////////////////// } } thnx