dviewmanager definition missing(dataviewmanger)

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ASP.NET

I want to fetch my database values into controls.........

Here i retrieved the names from database to combobox but i cant display the respected details of name(like their ID,name,address) into the textbox..........

I got the error of "It does not have the definition of dviewmanager... "

System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection();
            conn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" +
                @"Data Source=C:\Documents and Settings\User1\My Documents\\test.mdb";
            System.Data.OleDb.OleDbCommand cmd = new System.Data.OleDb.OleDbCommand();
            OleDbDataAdapter da = new OleDbDataAdapter("select ID,Name from tab", conn);
            DataSet ds=new DataSet();
            da.TableMappings.Add("Table", "tab");
            da.Fill(ds);
            DataTable myDataTable = ds.Tables[0];
            comboBox1.DataSource = myDataTable;
            comboBox1.DisplayMember = "Name";
           // comboBox1.ValueMember = "Name";
            this.dviewmanager = ds.DefaultViewManager;
            this.textBox1.DataBindings.Add("Text", this.dviewmanager,
                                                   "tab.ID");
            this.textBox2.DataBindings.Add("Text", this.dviewmanager,
                                                   "tab.Name");
            this.textBox3.DataBindings.Add("Text", this.dviewmanager,
                                                   "tab.Pword");

Pls help me to clear this error.