Error Summary Ivalidator
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about
Add Error To Validationsummary
Stack Overflow the company Business Learn more about hiring developers or posting ads with add error message to validation summary using jquery us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is
Add Error To Validationsummary From Code Behind
a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up IValidator.Validate method and adding error message to a custom type up vote 0 down add custom validator to validation summary vote favorite I have several server controls that implement the IValidator interface. As such, they have their own Validate() methods that look like this. public void Validate() { this.IsValid = true; if (someConditionFails()) { ErrorMessage = "Condition failed!"; this.IsValid = false; } } I understand that these Validate() methods are executed on postback before the load completed event that is executed before the save button's event handler. What I would validationsummary add message programmatically like to do is pass in a reference to an instance of a custom class that collects all the error messages that I can access from Save button event handler. In other words, I would like to do something like this: public void Validate(ref SummaryOfErrorMessages sum) I guess I can't do this as the signature is different from what the IValidator interface has. The other option I can think of is on Load Completed event, I would iterate through all the validators on page, get the ones with IsValid = false and create my SummaryOfErrorMessages there. Does this sound right? Is there a better way of doing it? .net asp.net validation share|improve this question asked Mar 31 '10 at 21:25 Nick 3,3511358115 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted I'd iterate through all the validators on the page after validation has been performed and get the summary. You can find all the validators from Page.Validators. As a warning, please note that validators that only use IValidator and don't inherit from BaseValidator do not support validation groups at all, so it would seem that not inheriting from BaseValidator is somewhat deprecated. I have been bitten by this once. share|improve this answer answ
Sign in Pricing Blog Support Search GitHub This repository Watch 181 Star 1,666 Fork 375 JeremySkinner/FluentValidation Code Issues 67 Pull requests 11 Projects
Add Error Message To Validation Summary Using Javascript
0 Wiki Pulse Graphs Permalink Branch: master Switch branches/tags Branches Tags gh-pages show validation summary from code behind master stable Nothing to show 6.2.1 6.2 6.1 6.0.2 6.0.1 6.0 5.6.2 5.6.1 5.6.0 5.5.0 5.4 5.3.0 5.2.0
Validationsummary Custom Message
5.1.0 5.1 5.0.0.1 5.0 4.0.0.1 4.0 3.4.6 3.4 3.3.1 3.3.0 3.2 3.1 3.0.0.1 3.0 2.0 2.0rc1 2.0b2 2.0b1 1.3 1.2 1.2rc1 Nothing to show Find file Copy path FluentValidation/src/FluentValidation/IValidator.cs http://stackoverflow.com/questions/2556583/ivalidator-validate-method-and-adding-error-message-to-a-custom-type fd6f7e3 Jul 1, 2016 JeremySkinner Begin fixing all the warnings 2 contributors Users who have contributed to this file JeremySkinner maksimkim Raw Blame History 98 lines (88 sloc) 3.72 KB #region License // Copyright (c) Jeremy Skinner (http://www.jeremyskinner.co.uk) // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance https://github.com/JeremySkinner/FluentValidation/blob/master/src/FluentValidation/IValidator.cs with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // // The latest version of this file can be found at https://github.com/jeremyskinner/FluentValidation #endregion namespace FluentValidation { using System; using System.Collections.Generic; using System.Threading; using System.Threading.Tasks; using Internal; using Results; ///
J InceFebruary 28, 200819 0 0 0 For a while now I’ve used this handy bit of code to add a message programmatically to a Validation Summary control, without associating it https://blogs.msdn.microsoft.com/simonince/2008/02/28/adding-messages-to-a-validation-summary/ with a Validator. I’ve no idea where it came from – perhaps http://www.martinwilley.com/net/code/code_businessvalidation.html my head, perhaps someone cleverer than I… so if it was from you, shout up! I was asked how to do this today by a customer, so I felt inspired to blog it. Anyway, sometimes you get an error from your business logic that it just isn’t practical to validation to have pre-validated. For example, when adding a new employee to a database, perhaps the employee name has a UNIQUE constraint on it. Validating this up front might not be easy… So if I get an error back from my business logic (either in the form of a list of validation errors, or in the worst case scenario as an to validation summary exception) how do I display this message to the user? Well it turns out this is quite easy – just add a validator that is reporting itself as “IsValid = false” to the Page.Validators collection. Consider the following class; public class ValidationError : IValidator { private ValidationError(string message) { ErrorMessage = message; IsValid = false; } public string ErrorMessage { get; set; } public bool IsValid { get; set; } public void Validate() { // no action required } public static void Display(string message) { Page currentPage = HttpContext.Current.Handler as Page; currentPage.Validators.Add(new ValidationError(message)); } } (Note: This is usingautomatic properties - a C# 3.0 feature. Alter the code to use standard properties if you're using an earlier version of .NET) This immediately allows me to use the following code; ValidationError.Display("Oops, some error occurred."); Succinct, eh?! Here’s a shot of it in action;
Tags ASP.NET C# Comments (19) Cancel rIValidator to enable server code messages to be added to a ValidationSummary /// public class BusinessValidationError : IValidator { ///