Vb net cellvalidating cancel
Canceling this event prevents the user from exiting the cell until a valid value is entered or the edit process is canceled (via Esc key).The Data Bound Item will be updated only if the cell is validated.
Net(213) Linux(127) ネットワーク(81) PHP(68) Open Office(48) Active Directory(40) ツール(35) Windows7(33) Windows Server2008(33) Data Grid View(30) ハードウェア(30) Windows Server2003(28) HTML(24) SQL(24) グループポリシー(24) セキュリティ(23) ADO. While this code snippet may solve the question, including an explanation really helps to improve the quality of your post.Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion.You can validate data by handling the Cell Validating event, which is raised by the Data Grid View when the current cell changes.In this walkthrough, you will retrieve rows from the column and tries to leave the cell, the Cell Validating event handler will examine new company name string to make sure it is not empty; if the new value is an empty string, the Data Grid View will prevent the user's cursor from leaving the cell until a non-empty string is entered.Note that only the Cell Validating event can keep the editor active,when the validation fails and it does not allow the user to exit the cell until a valid value is filled.
However, pressing the Esc key in this situation will revert the initial value of the cell and it will close the editor. The Row Validating event has a slightly different behavior.
When you display data entry functionality to users, you frequently have to validate the data entered into your form.
The Data Grid View class provides a convenient way to perform validation before data is committed to the data store.
To copy the code in this topic as a single listing, see How to: Validate Data in the Windows Forms Data Grid View Control.
column, its value is tested for validity by checking that it is not empty.
provides a convenient way to realize data validation before it is committed to the underlying data source.