I am using VB.net. Through coding I bound textboxes and datagrid to dataset columns. I am not using controls for dataadapter, dataset and connection. through coding I am assignin some values to some text boxes. and in some text boxes user will input the values. During the save, I found values which assigned to text boxes through coding is not saved in database. After assgining values to text boxes if I am clicking that text boxes values are saved in databse. Why it is happening like this ? what is solution for this problems??