WPF驗證手動將錯誤添加到Validation.Errors集合

Question

是否有任何方法可以手動/動態地將錯誤添加到Validation.Errors集合？

Answer 1

從http://www.wpftutorial.net/ValidationErrorByCode.html

ValidationError validationError = new ValidationError(regexValidationRule, 
    textBox.GetBindingExpression(TextBox.TextProperty)); 

validationError.ErrorContent = "This is not a valid e-mail address"; 

Validation.MarkInvalid(
    textBox.GetBindingExpression(TextBox.TextProperty), 
    validationError);