In this short tutorial, I am going to show how to validate a Dropdownlist in MVC3 using Razor Syntax. Our Model Class – using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.ComponentModel.DataAnnotations; using System.Web.Mvc; namespace DropdownListValidation.Models { public class DropdownListModel { [Required( ErrorMessage = "Selection is a MUST" )] public string SelectedItem { [...]
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JumpStart Tutorials
- JumpStart # 11 - Xml Comments for code using GhostDoc Extension
- JumpStart # 10 – Display Validation Error Messages in different formats using JavaScript
- JumpStart # 9 – Make Response.Redirect() open in New Blank Window
- JumpStart # 8 – Making Client CallBacks by Implementing ICallBackEventHandler Interface
- JumpStart # 7 – Handling UserControl’s Event from Parent Page
- JumpStart # 6 – Accessing CheckBoxList Control in JavaScript and making a Mandatory Selection Enabled
- JumpStart # 5 – Access Properties of a UserControl from other UserControl in ASP.Net Page
- JumpStart # 4 – validateRequest in ASP.Net
- JumpStart # 3 – ViewStateMode in ASP.Net 4.0
- JumpStart # 2 – OUT Parameter in C#
- JumpStart # 1 - Using Optional And Named Parameters in C#
Latest Entries
Dropdownlist Validation in ASP.Net MVC 3–Razor
RamiVemula on May 12, 2012 at 9:39 pm
Filed under:ARTICLE, ASP.Net MVC, C#
AJAX HTML Editor based Contact Form inside UpdatePanel along with UpdateProgress
RamiVemula on September 7, 2010 at 11:47 pm
In this tutorial, we see how to develop a simple Contact Page webform. This Contact Page is going to be a similar one to what we usually see in our day to day experience out in internet. Here we use AJAX HTML editor to enable Html email to the owner of the website. The basic outline would be – Users provide their general details like name and email, and also they can provide Html Message (using AJAX HTML Editor) in the Contact Page, where a basic validation is done as first step. Then we take the Html string, and send the same in the email to the authorized person of the website (typically owner) using SMTP settings (System.Net.Mail namespace). For ease of use, we use Gmail SMTP settings (host and port) for sending email. For better interactivity UpdateProgress control is used to show the progress of email routine.
JumpStart # 10 – Display Validation Error Messages in different formats using JavaScript
RamiVemula on September 3, 2010 at 1:24 pm
At times, instead of normal display of validation error messages (or even in the validation summary) on the page, we tend to display them in more user friendly manner. This Jumpstart deals with the using JavaScript to get the above shown validation error display formats. The main concentration laid on especially 3 different formats – 1) Water Marking 2) Error Images (beside TextBox) and 3) Alert Dialog. The before mentioned effects can be easily achieved with some quick JavaScript. In this tutorial, we use 3 JavaScript functions to get more flexible user interactivity with the page, they are – validate(), resetValidation(event) and singleValidation(event). In the following code sample we use three simple TextBox and RequiredFieldValidator pairs to demonstrate the validation error effects.