C# Add Error Message To Validation Summary
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Mvc Add Error To Validationsummary
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Asp.net Add Error To Validationsummary
you, helping each other. Join them; it only takes a minute: Sign up Adding error message to validation summary from code behind up vote 5 down vote favorite I am doing something like below on a web forms
C# Validationsummary Example
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;
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 a Validator. I’ve no idea where it came from – perhaps my head, perhaps someone validationsummary add message programmatically cleverer than I… so if it was from you, shout up! I was asked how add error message to validation summary using jquery to do this today by a customer, so I felt inspired to blog it. Anyway, sometimes you get an error from your business add message to validationsummary mvc logic that it just isn’t practical 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 http://stackoverflow.com/questions/5911789/adding-error-message-to-validation-summary-from-code-behind 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 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 : IValidatorhttps://blogs.msdn.microsoft.com/simonince/2008/02/28/adding-messages-to-a-validation-summary/ = "urn:schemas-microsoft-com:office:office" /> { 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 reply Name * Email * Website Jason says: February 29, 2008 at 12:07 pm Thanks for this. It definitely came in useful for me. Reply KA says: March 28, 2008 at 1:15 pm This works well - thanks for the tip. Reply Nicole says: April 7, 2008 at 2:06 pm Something similar to this can be done by adding a CustomValidator dynamically when the error occurs. For example: CustomValidator cv = new CustomValidator(); cv.IsValid = false; cv.ErrorMessage = "The error to display."; this.Page.Validators.Add(cv); Reply Simon J Ince says: April 8, 2008 at 5:13 am Nicole; Vervalidation on button or on another event. CustomValidator val = new CustomValidator(); val.IsValid = false; val.ErrorMessage = "Custom error message to add to the ValidationSummary"; this.Page.Validators.Add(val); https://maniish.wordpress.com/2010/11/24/add-custom-message-to-validationsummary-in-asp-net/ Like this:Like Loading... Related Written by Manish November 24, 2010 at 6:20 pm Posted in .NET, .NET 3.0, ASP.NET Tagged with ASP.NET, Custom Mesage, ValidationSummary « Simple Round Panel withoutImages element style cannot be nested in div–ASP.NET Masterpage » Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log in: Email to validation (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. (LogOut/Change) You are commenting using your Twitter account. (LogOut/Change) You are commenting using your Facebook account. (LogOut/Change) You are commenting using your Google+ account. (LogOut/Change) Cancel Connecting to %s Notify me of new comments via email. Notify me of new posts via email. Search for: Follow Blog message to validation via Email Enter your email address to follow this blog and receive notifications of new posts by email. Join 17 other followers Pages Books ( My Love ) – MyCollection Useful Blogs/Site Useful Softwares (Category-wise) Top Blog Dell laptop – FN function keys problem resolved Tesseract OCR Library - Successfully compiled in Window :) Resolved : Multiple controls with the same ID were found. FindControl requires that controls have unique IDs. 550 Cannot receive from specified address : Unauthenticated senders not allowed in SendGrid What's the Foundation of WPF ? (Windows Presentation Foundation) - WPF Tutorial #1 Blog Stats 457,234 hits Recent Blogs 221 See you later withsendgrid.net Create Temporary Table in SQLServer Magic Disk – Virtual Drive for ISOMount 550 Cannot receive from specified address : Unauthenticated senders not allowed inSendGrid Important features ofMVC4 Subscribe Register Log in Entries RSS Comments RSS WordPress.com My Twitter ASP.NET Core and CORS Gotchas :: ow.ly/epAx304RPrx 1hourago SQL SERVER – Performance Choice – Coding or Automation :: ow.ly/c8Ca304RPma 1hourago Animate Your React Native App :: ow.ly/GGcY304RPiR 1hourago New lower Azure pricing :: ow.ly/kssd304RPfx 1hourago ReSharper Ult