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python: check if url to jpg exists

In python, how would I check if a url ending in .jpg exists? ex: http://www.fakedomain.com/fakeImage.jpg thanks ...

jquery validation plugin - different treatment for display errors vs. clearing errors

I am using the popular jQuery Validation Plugin. It's very flexible with regards to when validations are run (onsubmit, onfocusout, onkeyup, etc.). When validations do run, as appropriate, errors are both displayed and cleared. Without hacking the plugin core, I'd like a way to split the behavior so: Errors are only displayed onsubmi...

Python TKinter connect variable to entry widget

Hi everyone, I'm trying to associate a variable with a Tkinter entry widget, in a way that: Whenever I change the value (the "content") of the entry, mainly by typing something into it, the variable automatically gets assigned the value of what I've typed. Without me having to push a button "Update value " or something like that first...

RedirectToAction and validate MVC 2

Hi, my problem is the View where the user typed, the validation. I have to take RedirectToAction on the site because on the site upload a file. Thats my code. My model class public class Person { [Required(ErrorMessage= "Please enter name")] public string name { get; set; } } My View <%@ Page Title="" Language="C#" MasterPageFil...

validate hostname string in Python

Following up to Regular expression to match hostname or IP Address? and using Restrictions on valid host names as a reference, what is the most readable, concise way to match/validate a hostname/fqdn (fully qualified domain name) in Python? I've answered with my attempt below, improvements welcome. ...

IValidator.Validate method and adding error message to a custom type

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 ...

jquery newbie: combine validate with hidding submit button.

I'm new a jQuery. I have gotten validate to work with my form (MVC 1.0 / C#) with this: <script type="text/javascript"> if (document.forms.length > 0) { document.forms[0].id = "PageForm"; document.forms[0].name = "PageForm"; } $(document).ready(function() { $("#PageForm").validate({ rules: { ...

validate that URI is valid http URI

Solution Okay I found 1 solution on Stackoverflow after a little more searching but I hope to do it with no extra libraries. http://stackoverflow.com/questions/2230676/how-to-check-for-a-valid-url-in-java/2230770#2230770 My problem: First of hopefully this is not a duplicate, but I could not find the right answer(right away). I would ...

jQuery Validate() special function

I'm using the jQuery validate() plugin for some forms and it goes great. The only thing is that I have an input field that requires a special validation process. Here is how it goes: The jQuery validate plugin is called in the domready for all the required fields. Here is an example for an input: <li> <label for="nome">Nome comple...

Why won't this PHP validate?

<?php $username = "@#*(#(*#($&*#$"; if (preg_match("/^[0-9a-z-A-Z-_@ !]*/", $username)) { echo "true"; } else { echo "false"; } ?> ...

How can I hide the label created by jQuery Validator ?

I am currently applying a simple simple to my validated forms (red background and border) although jQuery validator appends some label with : Field is required. I just dont want any text to appear. Thankyou! ...

Rails validating full_name

Hey... how would you validate a full_name field (name surname). ...

jQuery validate problem

Hi there. I have a jquery dialog box that pops up and takes user data through a form. Once the user is finished s/he clicks the 'ok' button. This dialog box has a few 'tabs' such that when 'ok' is clicked, we want to validate all the data given in each tab. If anything is invalid, we take the user to that tab and tell them what's wro...

jquery validate plugin: add a custom method

I need some guidance on how to add a validation method to the jquery validate plugin. I've gathered that i need to use the plugin's addMethod() function, but how exactly to have it do what i need... Here i am! My form 's first question is a radio input choice. Each radio input, if selected, shows a sub-question of several checkboxes. ...

jQuery sequence and function call problem

Hi everyone, I'm very new to jquery and programming in general but I'm still trying to achieve something here. I use Fullcalendar to allow the users of my web application to insert an event in the database. The click on a day, view changes to agendaDay, then on a time of the day, and a dialog popup opens with a form. I am trying to comb...

Suspend file validation on Zend Framework

Hi, Currently on my application I have a form where I ask the user to upload an image file to be used as a logo. I want to allow the user to reset that to nothing by supplying no file (by just pressing the upload button from the browser). In this scenario the only thing left is to suspend file validation when no file is included. Curren...

Drupal hook alter with hook validate

I have a CCK defined form called 'mytype_node_form'. I create a module called form_overrides I create a function called form_overrides_form_alter where I successfully check for $form_id = 'mytype_node_form' Question: What should be the name of my validation function (hook_validate) in module form_overrides that would allow me to add ...

Validate a WSDL using Ant and a third party API?

I'm using Axis2 WSDL2Java, and there appears to be no validate option flag for validating a WSDL before generating the stub. However, my stub generation is failing, and I'm pretty sure it is an issue with a malformed WSDL. The error we get is "can't serialize the policy", which after some research tends to lean toward an invalid WSDL. Ar...

validating href link to file

I am using JQuery to dynamically add a link for an image file. + "<td><a class='IconButton' id='trkimg" + k + "' href='IMSTORE\/" + trackings[k].Image + "'><span class='ui-icon ui-icon-image'></span></td>" This code checks that a value was returned from the database and hides the link if nothing was returned: if (trackings[k].Image =...

How can I validate form data using Google App Engine?

I have no idea about this. ...