Add Error To Validationsummary From Code Behind
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Mvc Add Error To Validationsummary
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Validationsummary Add Message Programmatically
minute: Sign up On postback, how can I add a error message to validation summary? up vote 49 down vote favorite 12 Two questions: On postback when a user clicks submit, how can I add a error message to validation summary? Is it also possible to highlight a particular textbox using the built in .net validation controls? asp.net validation share|improve this question add custom validator to validation summary edited Apr 22 '09 at 15:57 TStamper 22k85069 asked Apr 22 '09 at 15:39 Blankman 63.8k195560920 add a comment| 5 Answers 5 active oldest votes up vote 70 down vote Dynamically create a CustomValidator control and add it directly to the Page.Validators collection. Dim err As New CustomValidator err.ValidationGroup = "MyGroup" err.IsValid = False err.ErrorMessage = "The password is invalid" Page.Validators.Add(err) Unlike adding the CustomValidator to the markup, this method allows you to add any number of arbitrary error messages based on server-side business logic. Note that you can also add it to the page directly, but there are a couple of rules to follow: You must add the control to the same naming container as the controls of the validation group. If you don't want the validation message to appear in a random position in the page, you will either have to add the validator to a specific container or you will need to supress it using a CSS class or style. You can also create a custom class and implement IValidator, which enables you to add the message with one line o
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Add Error Message To Validation Summary Using Jquery
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Add Message To Validationsummary Mvc
developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join add error message to validation summary using javascript the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Get ValidationSummary Error Text from http://stackoverflow.com/questions/777889/on-postback-how-can-i-add-a-error-message-to-validation-summary Code Behind up vote 0 down vote favorite and thank you for reading this! I may be looking right past the answer for this, or it may be that it was never designed to happen since ValidationSummary is client-side logic, but is there any way to retrieve the error text of a validation summary field in ASP.NET from the C# code-behind? The goal here is to http://stackoverflow.com/questions/20360751/get-validationsummary-error-text-from-code-behind construct a message that includes various information entered by the user, plus any errors that might be preventing that user from completing an operation. It's fine if it can't be done since I am not expecting client side validation to be much of an issue for users in this program, but it would be nice to include for the sake of completion. Any advice would be appreciated. Thank you! c# asp.net validationsummary share|improve this question asked Dec 3 '13 at 20:13 user2912928 10514 add a comment| 2 Answers 2 active oldest votes up vote 0 down vote Your trouble is probably that these often validate on the client side and not the server side, if they don't actually cause postback. You may be best trying to switch to a CustomValidator and do your checks there. These happen on the server side and not the client side. Take a look at the documentation on MSDN http://msdn.microsoft.com/en-us/library/9eee01cx(v=vs.85).aspx I've never tried this, but here is a quick example of what may work. Front end
In general, field specific validation shows up next to a control that it is validating (assuming you put the validators next to it). But what about validation that happens in a Domain Service Class or your Custom BLL for example? These exceptions will by http://justgeeks.blogspot.com/2010/11/adding-item-to-validationsummary.html default be caught by the application and show as a nasty error to the user, or go to the error page. This is hardly the desired behavior for a validation error. First I like to change the default behavior of http://jonathanjungman.azurewebsites.net/blog/post/ASPNET-Add-New-Error-Message-to-Validation-Summary-Control.aspx bubbling up to the application to be caught to being handled at the button or page level. To do this I put a try-catch in my button action or other applicable event that you can tap into. In the catch, it to validation would be ideal to add a custom error message to the ValidationSummary. How do we do that though? Thankfully, it is quite easy to add an item to the ValidationSummary. The key is that the Page has a Validators property that all validators are automatically added to when you put them on your .aspx page. The problem is that we don't have a CustomValidator. Thus we need to create a CustomValidator, but what a pain really since we only want to use add error to it when we actually have an exception in our BLL. My solution is to create method to encapsulate the logic to create a new CustomValidator and add it to the Page's Validators collection. So that it can easily be accessed on any page, I have implemented it as an Extension to the Page class. Below is the code to do so. namespace MyExtensions { public static class PageExtensions { public static void AddValidationSummaryItem(this Page page, string errorMessage) { var validator = new CustomValidator(); validator.IsValid = false; validator.ErrorMessage = errorMessage; page.Validators.Add(validator); } } } To use this method just put the using MyExtensions; statement at the top of your code-behind of the page that you want to use it on. Then you can do the following: protected void btnSubmit_Click(object sender, EventArgs e) { try { // do some stuff like call my BLL that may throw an exception } catch (Exception ex) { if (ex.Message == "Some key string I want to handle") { Page.AddValidationSummaryItem("Password must be at least 6 characters in length."); } else { throw ex; } } } WARNING: Be careful with what you display to the end user. You should never catch an exception and display the Message directly to the user. It could have information that a hacker can use to compromise your applicati
from your code-behind page. Don't forget to use the proper ValidationGroup that your validation summary is using. protected void AddErrorToValidationSummary(string errorMessage){ CustomValidator custVal = new CustomValidator(); custVal.IsValid = false; custVal.ErrorMessage = errorMessage; custVal.EnableClientScript = false; custVal.Display = ValidatorDisplay.None; custVal.ValidationGroup = "MyValidationGroup"; this.Page.Form.Controls.Add(custVal);} Tags : asp.net, validation, validation summary, error Related posts ASP.NET: Add New Error Message to Validation Summary Control You can usethismethod to add a new error to an existing validation summary control from ... ASP.NET: Improving Your Error Logging & Handling One of the first things I like to setup when I am creating a new site is a customized error page and... Visual Studio: Build failed due to validation errors in dbml file Today, while attempting to build a class library on our build box I received the following error in ... Comments are closed About Me Just another .NET developer who happens to be named Jon Search Tag cloud .net advanced search ajax ajax control toolkit Application_Error archive ashx asp.net AutoComplete binary bind blob blog border bug button c# caching checkbox constraint convert css database datatextfield date dbml dialog directory dropdownlist dropshadowextender dynamic emptydatatemplate encoding enter enum error error handling error page fileupload firefox FreeTextTable gdi+ global.asax gridview handler html http handler ie8 iis image imagebutton imageurl JavaScript jquery jquery ui linq linq to sql linqdatasource linqkit logging management studio modal popup mvc paging panel partitionResolverType path Postback predicatebuilder regular expression Reporting Services request santa cruz scriptmanager session state sound card Source Safe sql sql server stored procedure System.IO System.Web.AspNetHostingPermission tab tabindex trigger turtle beach unique UpdatePanel updateprogress validation validation summary visual studio web service where windows 7 Month List 2009 May (3)June (4)July (4)August (2)September (3)November (2)December (1) 2010 January (1)February (2)March (3)April (1)Ma