Asp.net Add Error To Validationsummary
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Add Error To Validationsummary From Code Behind
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Validationsummary Add Message Programmatically
to validation summary from code behind up vote 5 down vote favorite I am doing something like below on a web forms application; protected void button_transfer_search_Click(object sender, EventArgs e) { Page.Validate("val1"); if (!Page.IsValid && int.Parse(txtArrivalDateTrf.Text) + 5 < 10) { return; } also, I have following code on my aspx file;
Add Error Message To Validation Summary Using Jquery
an error message to the page before return so that validation summary can grab that and displays it. I know we can do this in mvc easily but I haven't figured out how to do that in web forms. thanks ! c# asp.net validation webforms share|improve this question asked May 6 '11 at 12:58 tugberk 28.9k31172263 By "before return", do you mean on the client before the form is submitted? –IrishChieftain May 6 '11 at 13:22 1 found the answer here : stackoverflow.com/questions/777889/… nearly the exact duplicate :S well, it sucks :S –tugberk May 6 '11 at 13:29 I voted my own question to close :S still need 4 votes guys. help me out here. –tugberk May 6 '11 at 13:30 add a comment| 1 Answer 1 active oldest votes up vote 9 down vote Whenever I find this situation this is what I do: var val = new CustomValidator() { ErrorMessage = "This is my error message.", Display = ValidatorDisplay.None, IsValid = false, ValidationGroup = vGroup }; val.ServerValidate += (object source, ServerValidateEventArgs args) => { args.IsValid = false; }; Page.Validators.Add(val); And in my ASPX code
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Add Error Message To Validation Summary Using Javascript
Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each add message to validation summary javascript other. Join them; it only takes a minute: Sign up Add error message to @Html.ValidationSummary up vote 19 down vote favorite 7 I'm using standard MVC3 Razor views with unobtrusive Javascript validation, using @Html.ValidationSummary to show them at http://stackoverflow.com/questions/5911789/adding-error-message-to-validation-summary-from-code-behind the top of the form. If the standard validations (things like [Required]) pass, I then run some very custom client-side validation that fires when the user hits the Submit button. (The validation looks across a number of form elements to make sure that the proper set of them have been checked, etc., so it's not as simple as just creating a new custom validator for a single field). I'd like the possible error(s) I construct there to be http://stackoverflow.com/questions/7882008/add-error-message-to-html-validationsummary shown in the ValidationSummary list, but I can't figure out how to get the error message to appear there. asp.net-mvc-3 unobtrusive-validation share|improve this question edited Aug 22 '12 at 9:08 Eranga 26.3k36478 asked Oct 24 '11 at 21:10 Kras 2432612 In client-side or server-side? –Javad_Amiry Oct 24 '11 at 21:16 add a comment| 2 Answers 2 active oldest votes up vote 32 down vote In client-side: function YourCustomValidator() { // do your validation logic here via JavaScript return true; // or false based on your validation logic } $(document).ready(function () { // take your own form-selector like ("form", this) $("form", this).first().submit(function () { return (YourCustomValidator() && $(this).valid()); }); }); OR In server-side: Think you have a model like this: public class Test { [Required] [StringLength(100)] public string FullName { get; set; } } and when you are validating it: if(ModelState.IsValid) { // default validations run here if(/* some custom validations run here, there is an error about "FullName" */){ // you should set the "key" for Model-Error to "FullName" ModelState.AddModelError("FullName","error-message goes here") } if(/* some custom validations run here, the error is global, not on "FullName" */){ // you should set the "key" for Model-Error to an empty-string ModelState.AddModelError("","error-message goes here") } // also you can test for model-errors again like this: if(ModelState.IsValid) { // if you add any error above, this will be "false" } } share|
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 with https://blogs.msdn.microsoft.com/simonince/2008/02/28/adding-messages-to-a-validation-summary/ a Validator. I’ve no idea where it came from – perhaps 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 have pre-validated. to validation 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 exception) how do I to validation summary 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;
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