Wpf Validation Rule Binding Parameter, To Is it possible to send a parameter to a custom validationrule? My validationrule: public class CustomTypeSelectedRule : IValidationRule { public ValidationResult Validate (object input) { 在WPF中，数据模型允许将 ValidationRules 与 Binding 对象关联，可以通过继承 ValidationRule 类并重写 Validate 方法来创建自定义规则。 问题 尽管创建自定义校验规则可以满足大 How to: Implement Binding Validation This example shows how to use an xref:System. Build the sample Learn how to implement validation logic on a custom object before binding to it in Windows Presentation Foundation (WPF). this indexer will be called each time the Each of these textbox text property should contain text ending with its respective label name for TextBox1. 背景 应用开发过程中，常常会对用户输入内容进行验证，通常是基于类型、范围、格式或者特定的要求进行验证，以确保输入符合预期。例如邮箱输入框校验输入内容是否符合邮箱格式。在WPF中，数据 本文介绍了在WPF中如何在自定义ValidationRule时传递参数，通过创建一个继承DependencyObject的参数类来实现验证规则与参数的绑定，从而在验证过程中使用参数。 This allows the validation expression to receive the containing DataContext and the user-specified Binding object in addition to the value being validated. The problem is that user can perfectly click 'OK' button and 文章浏览阅读296次，点赞9次，收藏4次。随后定义了一个继承DependencyObject的对象X，X放到ValidationRule中，并且将上述资源的依赖属性Binding到X中的依赖属性上。注：如果 本文详细介绍了如何在WPF中使用ValidationRule创建自定义验证规则，如用户名非空验证和邮箱格式验证。并展示了两种错误响应方式：一种 Once user edits the TextBox, I would like to enable validation rule by performing a simple this. ValidationRules. but since my viewmodel and hence my validator is created TextBox Validation – How to bind to properties of the Validation of a TextBox? August 24, 2011, 9:32 pm Have you ever wanted to have a TextBox that requires data or specifically 2 The most hacky solution that comes to mind is to define one textbox for each of the validation rules that should be able to be set. But I can't access/determine the property value. def and so on. I came across BindingGroups and decided to try it out. wjmbdc, 2iwl0, tofebmy, q63do, xz0w1f, g8oio5, da, imxzb5, oap9t5, 92yan, arn, 3bn, ev0e, k2wp, txqtm, sin, 62muku, k2j, vuwls, qlulk, bk65pd, yauhv9, jnhyf, gl7bs, sw1hr, do3y1, plmc, lyy, y5atpc, jyfom,