P.S.: Also, you can consider to use ColumnView.ValidateRow event instead. Here is example: private void ValidatingEditor(object sender, BaseContainerValidateEditorEventArgs e) Also you need to put the validating value into this editor. You can use the GridView.ShowEditor method for that. So, the simple workaround is to show the editor after changing the width of column. But when you are changing the width of column, the editor is going to close, so there are no place to show the circle and this causes to show the message box instead. Any opinions on which one to choose How to print a form in vb.net with multiple tab pages Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages. ![]() StrataFrame has a DevExpress and Infragistics wrapper that provdes. When you validating the cell the in-place editor is actually validated and this nice circle with 'x' is shown in the editor instead of cell.Ģ. It looks like Infragistics and DevExpress are the most popular ones. NET error provider is automatically displayed when business rules are checked. You can get this editor through ColumnView.ActiveEditor property.ġ. This editor is based on BaseEdit class descendant and called in-place editor. When you are going to edit the cell the editor object is created in place of cell. The following steps describe the cause of the problem:Ġ. There is nothing to do with D圎rrorProvider. I am using Windows Forms and Error Provider to validate my Textbox, the validation works as it intended but even if the input matches the validation. How can I preserve the default behavior of D圎rrorProvider (the ( x )) and change column's width. If the Cancel property of the CancelEventArgs is set to true in. If the CausesValidation property is set to false, the Validating and Validated events are suppressed. These 2 lines make errorprovider go crazy When you change the focus by using the mouse or by calling the Focus method, focus events occur in the following order: Enter. If an error is associated with an editor, the DXErrorProvider will display an error icon. You can get this editor through ColumnView.ActiveEditor property. The following steps describe the cause of the problem: 0. It provides a mechanism for indicating to an end-user that an error is associated with an editor. There is nothing to do with D圎rrorProvider. If (Names.Any(x => x.FieldName = column.FieldName) & !((bool)e.Value)) The DXErrorProvider ‘s functionality is similar to the standard ErrorProvider component. tin hành tri nghim này, nhng bn cng có th xem thêm bí quyt làm ca t bên di ây: Các bn hãy kin to khung theo mu sau: call s kin Validating: Sau ó vit code x lý: Nu ko nhp công b vào ô tài. GridColumn column = view.GetDataSourceItem(view.FocusedRowHandle) Bn ang xem: Cách s dng errorprovider trong c. ![]() private void ValidatingEditor(object sender, BaseContainerValidateEditorEventArgs e) Those actions makes D圎rrorProvider (probably) show error in messagebox instead of nice circle with 'x' in cell.īelow you can see my implementation of event handler. It works fine, however one of the columns is very tight so when I want to show an error in that column's cell i try to change the width. Data is validated in GridControl's cells with help of ValidatingEditor event. Something like this would give you a textbox private void gridView1_ValidateRow(object sender,ĭ.ValidateRowEventArgs e)Īnd something like this would give you the red 'x' in the cell private void gridView1_ValidateRow(object sender,ĭ.I'm working on data validation with D圎rrorProvider class. both methods require you to subscribe to the Validate row event of the gridview, not the gridcontrol. but require slightly different implementations. or you can have that little red 'x' inside the cellīoth methods would work. either validate the row and return a messagebox displaying an error message.
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