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The Windows Forms Error Provider component allows you to show the user in a non-intrusive way that something is wrong.
It is typically used in conjunction with validating user input on a form, or displaying errors within a dataset.
The Icon property can be set to a custom error icon instead of the default.
I see the message boxes "before" and "after" but the form doesn't close... Thanks, [Phyle] Philippe Bdard Hello Philippe, To avoid the Validation, you may set the form and all control's Causes Validation property to false before you close the window. -------------------- Subject: error Provider with Causes Validation in a Win Form Date: Sun, -0700 Keywords: error Provider Causes Validation Win Form close C# Lines: 62 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-Mimeole: Produced By Microsoft Mime OLE V6.00.2600.0000 Newsgroups: microsoft.public.dotnet.languages.csharp NNTP-Posting-Host: hse-london-ppp35094.18.152 Path: cpmsftngxa08! Event Args e) private void Validate Required Field(Control c, string field Name) private void btn Cancel_Click(object sender, System.The Container Control property must be set to the appropriate container (usually the Windows Form) in order for the Error Provider component to display an error icon on the form.When the component is added in the designer, the Container Control property is set to the containing form; if you add the control in code, you must set it yourself.Select control you want to assign validation to and change its Validator1 property to choose desired validation type.In previous example you’ve seen required field validator.
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You can use this for example to ensure that password entered matches the confirmation password on input form or to ensure that numeric input value is greater than number you specify.