Scenario: There is following controls in the form:datagridview, textbox1, textbox2, button(save,edit,update,delete)
1.By clicking on save button, data should be updated into datagridview at run-time.2.By selecting complete row and clicking on edit button, data should be retrieved into textboxes.3.By clicking on Update button, that data should be updated.4.By selecting a complete row, the row should be deleted.