单选题You are developing a Windows Forms application that contains a DataGridView control. The DataGridView capture the customer's name, address, and phone number. You have been asked to provide data validation in a DataGridView to prevent users from leaving the.. You need to ensure that users cannot tab out of the name field without entering data What should you do ?（）AValidate the name field in the CellValidating event. Set e.Cancel = true if the name field isBValidate the name field in the CellErrorTextChanged event. Get e.RowIndex if the name field ..CValidate the name field in the CellEnter event. Set the focus on the name field if the name ...DValidate the name field in the CancelRowEdit event. Set the focus on the name field if the name ...
单选题
You are developing a Windows Forms application that contains a DataGridView control. The DataGridView capture the customer's name, address, and phone number. You have been asked to provide data validation in a DataGridView to prevent users from leaving the.. You need to ensure that users cannot tab out of the name field without entering data What should you do ?（）
A
Validate the name field in the CellValidating event. Set e.Cancel = true if the name field is
B
Validate the name field in the CellErrorTextChanged event. Get e.RowIndex if the name field ..
C
Validate the name field in the CellEnter event. Set the focus on the name field if the name ...
D
Validate the name field in the CancelRowEdit event. Set the focus on the name field if the name ...
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