UpDate a Table

Question

How can I retrieve data from a Table in a SqlServer, populate a DataGrid, modify the data in the DataGrid and UpDate the Data of the table? I tried this: MyDataAdapter = new SqlDataAdapter("SELECT * FROM MyTable", MyConnection); //Public DataAdapter SqlCommand MyUpDateCommand = new SqlCommand("UPDATE MyTable SET Column1 = @Column1, Column2 = @Column2", MyConnection); MyCommand.Parameters.Add("@Column1",System.Data.SqlDbType.Bit, 1, "Column1"); MyCommand.Parameters.Add("@Column2",System.Data.SqlDbType.VarChar, 50, "Column2"); MyDataAdapter.UpdateCommand=MyUpDateCommand; MyDataSet = new DataSet(); //Public DataSet MyDataAdapter.Fill(MyDataSet, "MyTable"); MyDataGrid.SetDataBinding(MyDataSet, "MyTable");//Also I tried MyDataGrid.DataSource = MyDataSet.Tables["MyTable"]; //Method of de Save Button SaveButton_Click(object sender, System.EventArgs e) { MyDataAdapter.Update(MyDataSet, "MyTable"); } The above it doesn't work. What am I missing? Could Any1 help me? Thanx in advance.