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• How to edit boolean in a DataGridCheckBoxColumn in Silverlight 3

  - by Polo

  Hello, I have a datagrid with some TextColumn and one DataGridCheckBoxColumn. I bind it with à itemsource that contaned à boolean and i can see that my checkboxes or checked or not by the boolean everything is OK at this point. but the checkboxs cells are in ReadOnly even if i assigne IsReadOnly = False. I cant find the right and clean way to enable the editing. I dont need data validation but juste to be able to edit and check those checkboxes :) If anyone can help! thanks !!

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• Replace CAPICOM with .NET, validate certificate

  - by Zaky

  Hi My component is responsible for downloading files from the server. As part of file validation I have used CAPICOM (SignedCode object) to validate if a certificate contains a specific string and call to Validate method of the SignedCode object. In case the file contains certificate without a requested string in the name, user was prompted if he trust this file. Since CAPICOM going to be deprecated by Microsoft, I need to implement these logic using .NET libraries. How I can get the same functionality using .NET libraries? Is there any example on the web? Thanks Zaky

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• Where are the Entity Framework t4 templates for Data Annotations?

  - by JK

  I have been googling this non stop for 2 days now and can't find a single complete, ready to use, fully implemented t4 template that generates DataAnnotations. Do they even exist? I generate POCOs with the standard t4 templates. The actual database table has metadata that describes some of the validation rules, eg not null, nvarchar(25), etc. So all I want is a t4 template that can take my table and generate a POCO with DataAnnotations, eg public class Person { [Required] [StringLength(255)] public FirstName {get;set} } It is a basic and fundamental requirement, surely I can not be the first person in the entire world to have this requirement? I don't want to re-invent the wheel here. Yet I haven't found it after search high and low for days. This must be possible (and hopefully must be available somewhere to just download) - it would be criminally wrong to have to manually type in these annotations when the metadata for them already exists in the database.

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• Encryption Product Keys : Public and Private key encryption

  - by Aran Mulholland

  I need to generate and validate product keys and have been thinking about using a public/private key system. I generate our product keys based on a client name (which could be a variable length string) a 6 digit serial number. It would be good if the product key would be of a manageable length (16 characters or so) I need to encrypt them at the base and then distrubute the decryption/validation system. As our system is written in managed code (.NET) we dont want to distribute the encryption system, only the decryption. I need a public private key seems a good way to do this, encrypt with the one key that i keep and distribute the other key needed for decrpytion/verification. What is an appropriate mechanism to do this with the above requirements?

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• RIA Services versus WCF services: what is a difference

  - by Budda

  There are a lot of information how to build Silverlight application using .NET RIA services, but it isn't clear what is unique thing in RIA that is absent in WCF? Here are few topics that are talking around this topic: http://stackoverflow.com/questions/1647225/ria-services-versus-wcf-services http://stackoverflow.com/questions/945123/net-ria-services-wcf-services But they doesn't give an answer to the question. Sorry for the stupid question, but what does "RIA Services" layer bring into your app if you already have "Silverlight <-- WCF Service <-- Business Logic <-- Entity Framework Model <-- Database"? Authentication? Validation? Is it relly asset for you? At the moment the only thing I see: with RIA services usage you don't need to host WCF service manually and don't need to configure any references on the client side (clien side == Silverlight application). Probably I don't know some very useful features of the RIA Services? So could you please point me to the good doc for that? Many thanks.

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• rails paperclip and passenger `is not recognized by the 'identify' command`

  - by Joseph Silvashy

  When I upload a photo, my model fails validation, err well even without any validations I'm returned this error: /tmp/stream20100103-13830-ywmerx-0 is not recognized by the 'identify' command. and /tmp/stream20100103-13830-ywmerx-0 is not recognized by the 'identify' command. I'm confident this is not related to ImageMagick because I've removed any image processing from the uploading, also I've tried uploading different mime types, like .txt files and the such. Additionally, I found something that may work. A blog post claims that putting the following in my environment (in this case development.rb) Paperclip.options[:command_path] = "/opt/local/bin"

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• WPF: RenderOptions.EdgeMode="Unspecified" vs "Alias" override global setting with local setting

  - by msfanboy

  Hello, in the ressource-tag of my MainWindowView.xaml I have this markup: RenderOptions.EdgeMode="Aliased" to get a general sharp look of my whole application. Using mostly rectangular shapes/controls this works fine. But for my validation error symbols I use a red ellipse with a white cross or "X" in it. The ellipse is using now the global "Aliased" settings what looks not good because I can see the pixelated border of the ellipse. Using now does NOT change anything ??? I always set in wpf local settings override global settings ?

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• ASP.NET MVC Class level custom data-annotation and ModelState keys

  - by Neil

  Hi, I have custom class level validation attribute, inheriting from ValidationAttribute, on my model. How come it doesn't register a key in the ModelState when its IsValid is false? I can see the the error message in the ModelState.Values collection, but the ModelState.Keys collection only shows an empty string "". Can I provide a key for it - presumably this is because its not assigned to a property? I wanna be able to use ModelState.Remove in my controller to remove this error upon a certain condition, but I have no Key! Any ideas?

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• PHP Filter, how to filter input array

  - by esryl

  I am using PHP filter to perfom basic sanitization and validation of form data. The principle problem I am having is that I mark my form up so that all the data is in one array for the POST input. e.g. form fields, page[name], page[slug], page[body], page[status], etc. Using the following: filter_input(INPUT_POST, 'page[name]', FILTER_SANITIZE_STRING); OR filter_input(INPUT_POST, "page['name']", FILTER_SANITIZE_STRING); I am unable to access the variable. Can someone please tell me the correct name to use to access array data using filter_input()

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• Installing Recaptcha in Joomla 1.5 user registration

  - by Samuel

  I am trying to install ReCaptcha into the user registration of Joomla 1.5. This may just be an issue with Joomla but when i hit register nothing happens. I think it's doing some JavaScript form validation but there is nothing telling the user what went wrong. if, God forbid, they do fill out the form correctly Joomla will redirect the user to the homepage and give no notice of success. Is this a Joomla issue or is there something wrong with my install? Does anyone know of a plug-in or module for Joomla that would make this easier? Thanks in advance, Samuel UPDATE: Joomla does a lot of "stuff"/"something" to the $_POST and $_GET variables which was causing the reCaptcha to not function. This was for work which is past so I am not spending anymore time on it. Shameless Plug: use wordpress instead. this can be closed as I don't have time to verify which answer works

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• Windows Workflow Foundation 4.0 and WCF web service faults (soap fault)

  - by Lygpt

  In my Workflow Foundation 4.0 RC app I have a 'Receive' and 'SendReplyToReceive' WCF messaging pair that work fine with a simple request/response operation, but I'm having trouble attempting to perform validation on the request and reply with a fault. In WCF I am able to create a throw custom fault contracts (which in turn sent out SOAP faults) but I just can't see how to achieve this with the built-in workflow messaging activities. I can only seem to response with a data transfer object (I'm not even able to respond with a choice of object). Any ideas? (Can you save my day yet again Maurice!?) Thanks!

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• Security and authentication in web services

  - by King

  Lets say we have a website that uses a web service for all of its functionality (i.e. retrieving and updating data from/to db), how does the web service authenticate requests? As I understand it, in a traditional java "website" a user provides a username & password, and upon validation a jsessionid is assigned to the user (client browser). Every time the client browser asks the website for something, the site checks for the jsessionid ensuring that the user is registered and authenticated. Is there a web services equivalent of this? If yes, what?

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• ExtJS: Login with 'Remember me' functionality

  - by Chau

  I'm trying to create a simple login window with the very common 'Remember me' functionality. The login validation is done AJAX style, thus the browser won't remember my input. My approach is to use the built-in state functionality, but how to use it confuses me. Ext.state.Manager.setProvider(new Ext.state.CookieProvider({ expires: new Date(new Date().getTime()+(1000*60*60*24*7)), //7 days from now })); ... { xtype: 'textfield', fieldLabel: 'User name', id: 'txt-username', stateful: true, stateId: 'username' }, { xtype: 'textfield', fieldLabel: 'Password', id: 'txt-password', inputType: 'password', stateful: true, stateId: 'password' }, { xtype: 'button', text: 'Validate', stateEvents: 'click' } I know I have to implement the getState method, but on what component (my guess is on the two textfields)? Another thing I fail to realize is, how is my click event on the button connected to the state properties of my textfields?

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• Is the usage of Isolated Storage in Silverlight 3 a security concern

  - by Prashant

  I am using Silverlight 3 on my website. I have a Login Page for role based authentication, that routes users with different privileges to different parts of the website. I want to use something analogous to the Session Variables available in standard ASP.Net applications. I intend to use Isolated Storage to achieve this. But I am skeptical about security in this option, as the Isolated Storage exists on the client side, and can be manipulated on client side. I am new to the Isolated Storage concept and don't know about the security options provided by it in terms of Encryption and server-side validation etc. If any of you have used it or are aware of the security provided in this case, could you please shed some light on the same. Thanks

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• C# Pragma to suppress break on thrown error

  - by Courtney de Lautour

  First off I run my applications with exceptions thrown on any error (handled or not). Second I am using a TypeConverter to convert from a user input string to the actual object. Third TypeConverter offers no TryConvert method so I'm stuck using exceptions for validation, using this rather ugly bit of code here: try { this._newValue = null; #pragma Magic_SuppressBreakErrorThrown System.Exception this._newValue = this.Converter.ConvertFromString(this._textBox.Text); #pragma Magic_ResumeBreakErrorThrown System.Exception this.HideInvalidNotification(); } catch (Exception exception) { if (exception.InnerException is FormatException) { this.ShowInvalidNotification(this._textBox.Text); } else { throw; } } I'm finding it rather distracting to have VS break execution every-time I type the - of -1, or some other invalid character. I could use something similar to this but not all the types I'm converting to have a TryParse method either. I'm hoping there may be some way to disable breaking for the section of code within the try without changing my exception settings.

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• Removing non-alphanumeric characters in an Access Field.

  - by Jacques Tardie

  I need to remove hyphens from a string in a large number of access fields. What's the best way to go about doing this? Currently, the entries are follow this general format: 2010-54-1 2010-56-1 etc. I'm trying to run append queries off of this field, but I'm always getting validation errors causing the query to fail. I think the cause of this failure is the hypens in the entries, which is why I need to remove them. I've googled, and I see that there are a number of formatting guides using vbscript, but I'm not sure how I can integrate vb into Access. It's new to me :) Thanks in advance, Jacques

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• Regular expressions in findstr

  - by Johannes Rössel

  I'm doing a little string validation with findstr and its /r flag to allow for regular expressions. In particular I'd like to validate integers. The regex ^[0-9][0-9]*$ worked fine for non-negative numbers but since I now support negative numbers as well I tried ^([1-9][0-9]*|0|-[1-9][0-9]*)$ for either positive or negative integers or zero. The regex works fine theoretically. I tested it in PowerShell and it matches what I want. However, with findstr /r /c:"^([1-9][0-9]*|0|-[1-9][0-9]*)$" it doesn't. While I know that findstr doesn't have the most advanced regex support (even below Notepad++ which is probably quite an achievement), I would have expected such simple expressions to work. Any ideas what I'm doing wrong here?

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• How can I customise Zend_Form regex error messages?

  - by Matt

  I have the following code: $postcode = $form-createElement('text', 'postcode'); $postcode-setLabel('Post code:'); $postcode-addValidator('regex', false, array('/^[a-z]{1,3}[0-9]{1,3} ?[0-9]{1,3}[a-z]{1,3}$/i')); $postcode-addFilters(array('StringToUpper')); $postcode-setRequired(true); It creates an input field in a form and sets a regex validation rule and works just fine. The problem is that the error message it displays when a user enters an invalid postcode is this: 'POSTCODE' does not match against pattern '/^[a-z]{1,3}[0-9]{1,3} ?[0-9]{1,3}[a-z]{1,3}$/i' (where input was POSTCODE) How can I change this message to be a little more friendly?

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• Magic quotes in PHP

  - by VirtuosiMedia

  According to the PHP manual, in order to make code more portable, they recommend using something like the following for escaping data: if (!get_magic_quotes_gpc()) { $lastname = addslashes($_POST['lastname']); } else { $lastname = $_POST['lastname']; } I have other validation checks that I will be performing, but how secure is the above strictly in terms of escaping data? I also saw that magic quotes will be deprecated in PHP 6. How will that affect the above code? I would prefer not to have to rely on a database-specific escaping function like mysql_real_escape_string().

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• ASP.Net MVC 2: How to keep values in the model between posts

  - by Andreas

  I have an edit view that is displaying some model properties as plain text and other model properties as input fields. My problem is that the model properties displayed as plain text are null when the model is returned to the view after a validation error. How do I retain the model values when I don't have input fields for all properties? What is best practice? My first thought is to keep the values of these properties in hidden input elements. <%= Html.HiddenFor(model => model.CustomerName) %> Is this considered a correct solution? Thanks Andreas

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• Display subform after validate main form

  - by bahamut100

  Hi, I want to display a new form after the validation of a form. I use Zend_Form_SubForm to do it (I Try to Zend_Form too), but this new form is not displaying. Why ?? This is the code in question : if ($this->_request->isPost()) { $formData = $this->_request->getPost(); if ($form->isValid($formData)) { $subForm = new Zend_Form_SubForm(); $subForm ->setAction('') ->setMethod('post'); $nom=new Zend_Form_Element_Text('nom'); $submit = new Zend_Form_Element_Submit('submit'); $submit->setLabel('OK'); $subForm->addElements(array($nom,$submit)); } else { $form->populate($formData); } }

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• ASP.Net double-click problem

  - by David Archer

  Hi there, having a slight problem with an ASP.net page of mine. If a user were to double click on a "submit" button it will write to the database twice (i.e. carry out the 'onclick' method on the imagebutton twice) How can I make it so that if a user clicks on the imagebutton, just the imagebutton is disabled? I've tried: <asp:ImageButton runat="server" ID="VerifyStepContinue" ImageUrl=image src ToolTip="Go" TabIndex="98" CausesValidation="true" OnClick="methodName" OnClientClick="this.disabled = true;" /> But this OnClientClick property completely stops the page from being submitted! Any help? Sorry, yes, I do have Validation controls... hence the icky problem.

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• Isset and PHP Global Variable

  - by justjoe

  i have doubt on this particular problem : Global variabe initiation. i got this code and has global variable named conditional_random here : function hello_testing() { global $conditional_random; if (isset($conditional_random)) { echo "foo is inside"; } } As it's name, the global variable (conditional_random) can be or not initiate before the hello_testing function been called. So, what happen to my validation via isset() when $conditional_random is not initiate before the hello_testing function ? will it failed to check or it will always be true cause by the 'global' ?

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• Why is invalid value being thrown?

  - by Nathan Koop

  I've got a DevExpress TextEdit which is databound to a dataset. The field is an optional percentage, (datatype double). When the record gets loaded and there is no value in the field, everything is fine. However, if you type something into the field (IE 100) and then want to remove it afterwards, I get an Invalid Value, error. Why does this occur, and how can I remove it? I do not have any mask or any sort of explicit validation on this field.

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• jQuery closing pop-up after successful form submit

  - by RyanP13

  Hi, I have a pop up form that i wish to close on successfull submit of the form. Currently we are only validating on the server side which will create an unordered list of validation errors with the class .error_message. Once the form has been successfully submitted i want to close the window. Currently the jQuery i am using for this is as follows but does not work because the first time the form has been submitted the number of error messages will always be zero. $(document).ready(function() { $('form#emailQuote').submit(function() { var $emailErrors = $('form#emailQuote ul.error_message').length; alert($emailErrors); if ($emailErrors == 0) { //window.close(); alert('no errors'); } else { //alert('errors'); alert('errors'); } }); });

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