delete row method of the dataset

Question

I have the Following code: myDataSet.Tables[0].rows[10].delete(); This code deletes the record. but when i again try to go forward from 9 to 10 record, it displays error: "Data row information can't be accessed through the row." if i call the update method with data adapter, it actually updates the database as well, which i don't want. i want to call the update method later in the code, which actually updates the database at that time, so what should i do.