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    C datagrid cellvalidating

    I need to perform a task whenever the user ordinarily ends edit mode (no matter if the user actually modified the value or not; but not when the user cancels edit mode by pressing ESC) in a Text Box column of a is only set when the user actually changes the value.But I also need to perform the task when the user ordinarily ends edit mode without having changed anything.Any other suggestions for events I could register to and/or flags I could check to achieve the desired behaviour?causes the event to be canceled which blocks the gui. During databinding i have already unsubscribed from this event to disable it.These events are not fired when the user cancels edit mode, which is good. They do almost what I want but they are also fired when the user cancels edit mode by pressing ESC.

    c datagrid cellvalidating-63c datagrid cellvalidating-20c datagrid cellvalidating-22

    I display the data of the is datagridview in another interface and make the cells read-only. But the thing is when I click on a row that data was added previously and press the Add new row the cell validating event is triggered.How can I disable the cell validating event for the rows that was added before???thankxxxxxx There are two ways to manage unwanted execution of event handlers.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site. Canceling this event cancels the changes to the current cell.1) Add a conditional statement in the event handler code to only execute when required.2) Detach the event hander before the unwanted event triggers and re-attach after.Default behavior of a Data Grid View Combo Box Cell is that it doesn't support typing into the cell.But you could have a request from the client who wants to have enabled typing in a Combobox cell.現在、Cell Validatingイベントでセルの入力チェックを行っていたのですが、どうやら Cell Validating だけでチェックしたのではダメっぽいです。 たとえば複数列の Data Grid View で全列Null不可の条件かつ登録ボタンを押下すれば、DBに反映するというような場合、新規行のどっかのセルに値を入れて、そのまま登録ボタンを押下すれば、null値がDBに登録されてしまい、DBがnullを許してないため、例外が発生します。 なので、入力チェックは Cell Validating イベントだけでなく、Row Validating も使ってやる必要ありそうです。 Row Validating なら、ここで全セルをチェックしてやればいいだけですからね。 ということで、簡単なサンプルです。 これは、Cell Validating と、Row Validating で入力チェックを行っています。 Row Validating だけでもいいんでしょうが、こまかい制御をかけさせたいという要件もあると思うので Cell Validating でもチェックさせます。 DBにはMDBを、列IDはオートナンバー型なのでここの値の割り振りはJETエンジンに任せてます。 列name1は文字列、列name2は数値型で、両方とも空値は認めません。 Data Setは下記のようなイメージで作ってます。 .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.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.But now it is still triggered if the user clicks into the cell to edit the invalid value.

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