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• Model Validation for record creation in rails

  - by Elliot

  Hey Guys, Lets say the model for books is: created_at user_id (int) author_id (int) genre_id (int) pages (int) I want to let people change the "created_at" field upon record creation. I also want to make sure that a record can't have the exact same created_at, user_id, and author_id as any other record (i.e. each needs its own date). Whats the best to perform this type of validation, and how should I go about doing it? Best, Elliot

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• Access Controls in Silverlight DataGrid Column Header from Code

  - by fuzzyman

  We have custom headers in the Silverlight DataGrid using the ContentTemplate. We've got a button in the header and need to programmatically access the button to hook up the event. We're using IronPython, so we can't statically bind the event in the xaml (plus we use the grid for many different views - so we dynamically generate the xaml). How can we get access to controls inside a datagrid column header?

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• ASP.NET XHTML Strict Validation & autocomplete=off

  - by Alyn

  We have an ASP.NET form with the following doctype:- We need to add autocomplete=off (by setting the TextBox property of AutoCompleteType="Disabled") to the input fields but still need the form to pass XHTML Validation (yes I know it's not XHTML valid because of this). Is there anythign we can do to ignore the autocomplete=off?? Something like:- !ATTLIST input autocomplete CDATA #IMPLIED Thanks in advance. Al.

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• Credit card validation and parsing utilities for .Net Compact framework 3.5

  - by Sundar

  I have payment gateway integration in my application developed using .Net Compact framework 3.5. Is there any "Credit card validation and parsing utilities" that i can use in my application or is there any class that i can use to identify the type of the card?

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• VB6 ActiveX controls into a TCL/tk application

  - by PeanutPower

  Whats the most common way of instantiating VB6 ActiveX controls inside of an Tcl/Tk wrapper application. Are there performance issues with this setup i.e. around GDI handles?

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• C# Win Forms Auto-Updating Controls

  - by Goober

  Hello! I have a datagridview and a combobox which get populated randomly with data. However, the new data is never displayed automatically. Someone mentioned the idea of invalidating the control to force the application to redraw it and thus iterate through the contents and populate the control with the new data. Does anyone know which is the best method for implementing auto-updating controls in windows forms applications? help greatly appreciated, regards.

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• MVC2 Clientside Validation and duplicate ID's problem

  - by Dusty Roberts

  I'm using MVC2 with VS2010 I have a view that has two partial views in it: "Login" and "Register" both partial views contains the Email address field i use the following in both partial views: <%: Html.TextBoxFor(model => model.EmailAddress ) %><br /><%: Html.ValidationMessageFor(model => model.EmailAddress) %> if i use both partial views on one page, it ends up having duplicate id's so validation happens across both views (even thopugh they are in seperate forms) how can i go about eliminating this

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• Cannot find System.Windows.Controls.dll for Silverlight 3

  - by Erica

  Where can I find System.Windows.Controls.dll for Silverlight 3? I need it to be able to use the TreeView control and the AutoCompleteBox control. Toolkit November 2009 is installed but the dll that I need was not included.

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• C++ Function arguments validation (pointer vs. reference arguments)

  - by Andrew

  Hello everyone, What do you consider a better programming practice: passing objects as pointers or references to functions. What do you do for input validation? Thanks.

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• Access properties controls of a window from a page in WPF

  - by toni

  Hi, My problem is that I want to access from a page to the properties of a control (button, textblock, label, or a menuitem of the window....) placed in a window. The page is placed into the window. How can I do this? Is there any method to find controls by name in a specific window or page or entire application? Thanks.

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• changing trigger event of MVC 2 client validation

  - by Muhammad Adeel Zahid

  Hi Everyone i m developing a website using .NET 3.5 with MVC 2.0. For server side validations i m using ComponentModel.DataAnnotations. these validations are reflected to client side by html helper's method Html.EnableClientValidation(). this scheme works fine for except that it triggers the validation on blur event of each form control whereas i want to have it triggered on form's submit event. any suggestions in this regard are highly appreciated regards

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• asp.net controls for iPhone development

  - by Tony_Henrich

  The ASP.NET iPhone controls from ComponentOne is an interesting idea. However $800 is beyond my budget. Is there anything similar in the open source/free/cheaper world?

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• How to set state of controls from viewstate on non PostBack page

  - by n1zero

  I am currently saving viewstate of pages in cache. I can see that viewstate is rebinding values and controls on PostBack. It is working properly on postback. However, I need to recreate state on a non-post back page.The key i'm using for loading viewstate from cache is being passed in the querystring but I am unable to find a way to force viewstate to load on a non-post back page. Is there any way to force a load of viewstate on a Non-Postbacked Page?

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• How to enable ActiveX controls in firefox?

  - by Guru1985

  I have an application which uses ActiveX controls. I want to automate this using Selenium IDE. But when i launch the application i end up in an error message "Turn on you ActiveX control". Is there any way to enable ActiveX in FireFox? Note: I am using User Agent Switcher(as IE7) Addon of firefox to run my application.

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• Slow rendering of pages due to User Controls.

  - by Rahul Soni

  How would you troubleshoot a page that is rendering slowly in ASP.NET? This issue is happening on only specific pages with a few user controls. Other pages work fine. Tracing has clarified that the issue is happening between "Begin Render" and "End Render".

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• Developing a custom-validation in asp.net for specific control and criteria

  - by Gaurav

  Hello There is another relevant question asked Validation Check in asp.net In the same scenario we need a custom validator control which will alert user for any wrong entry. This will work like this : Developer will pass the control-name, input-value and format-required For instance like for textbox it can be: txtName,txtName.Text, allow-alphabets-only The accordingly format if the user input is invalid he/she will be got prompt. Please suggest the right way to do the smae. Thanks in advance.

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• jQuery Validation Arguments

  - by Idsa

  jQuery Validation plugin has "element" argument for required rule. I know how to use it for inline functions but what if I want to pass it to out-of-line JS function? I tried this: rules: { startHours: { required: startTimeRequired(element) }, but it didn't work.

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• Are there any hierarchical, multi select controls that use check boxes in .NET

  - by Daniel

  I need to be able to select multiple options on a web form, but those options are hierarchical. For example: Option 1 Option 1 a Option 1 b Option 2 The user should be able to select Option 1, or Option 1a, etc. Selecting Option 1 a should automatically select Option 1. Any controls/solutions out there that fit the bill? (I'm not looking to spend $)

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• Web data grid of infragistic controls

  - by Vishal Srivastava

  Hi, I am working on a web project where i need to use web data grid of infragistic controls. I have problem to customise the header layout. I did not find event like InisalizeLayOut in ultrawebgrid. My problem is that i want to row in header. Please give me your valuable suggations. Thanks

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• Dynamic pages and controls with Asp .NET

  - by Abhilash

  Hi, We are starting with the design of an ASP .NET Web UI using WCSF as the UI FW. We are evaluating some FW which will allow us to build dynamic pages, dynamic as in, deciding at runtime what user controls will be displayed and in what order. Also possibly, the pages and order in which they will be displayed. We are looking at Page Flow Application Block, but there's limited documentation around it, we were interested in knowing what other options could be considered. Thanks for your help guys...

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• jQuery - How to dynamically add a validation rule

  - by Justin

  Hey, I'm trying to dynamically add a validation rule to some dynamic controls: $("input[id*=Hours]").rules("add", "required"); However this line gives me the following error: $.data(element.form, "validator") is null Defining rules the static way with the validate function works fine. What am I doing wrong? Thanks, Justin

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• Sending postback to ajax loaded user controls.

  - by Paul Knopf

  I have a set of tabs, which all of them together contain alot of data. I am making the tabs load async. I have one button above the tabs used to save changes. I need this button to send a postback to all the loaded user controls (using this). I need the user control to handle this postback so it can save changes. What do you think? Any suggestions?

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• please help me with rad controls in sharepoint

  - by Diane Headen

  I want to use rad editor in sharepoint I have tried to install tellerik controls in sharepoint and i am getting this error "Could not load file or assembly 'Telerik.Web.UI\,' or one of its dependencies. The system cannot find the file specified". could anyone help me in trying to figure out this error. Please let me know if any one know how to use rad editor in sharepoint

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• Enterprise Library validation messages and localization

  - by Sir Psycho

  I am trying to configure the validation block in enterprise library 5, however, when selecting a template for the error messages, the selected assemlby is not listing the Resources file. Do resource files have to be in a certain location in the project to be visible?

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• CSS rgba Background Color Validation

  - by SHiNKiROU

  I found a weird CSS validation result: when rgba() is used to background, it does not validate, however, the workaround is rgba() for background-color. Why that rule exists? Is it a validator's bug? Try to validate the following there, and you can see the result: div { background: rgba(0, 0, 0, 0.5); } and div { background-color: rgba(0, 0, 0, 0.5); }

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