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Onkar Singh

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Top Stories by Onkar Singh

.NET Compact Framework doesnt provide builtin double buffering for forms. In case you have multiple custom drawn user controls on a form, loading will mostly show flickr. Overriding OnPaint and drawing the form and its child controls to an offscreen bitmap before putting it out to actual display is expected to solve this. But, once a child control is added to another container control, overriding OnPaint of the parent container control doesnt allow you to paint the child as the child's client rect is clipped out from the graphics object passed to parent's OnPaint. The solution to this problem is to avoid adding the custom user control to the forms. Instead, maintain your own list of such controls. Form's constructor should make these changes. //this.Controls.Add(customControl); //don't do this control_list.Add(customControl); //control_list is Forms own custom list for... (more)

Difference between SureFox iOS and SureFox Lite iOS

Applies to: Product SureFox Platform iOS SureFox Kiosk Browser iPad and iPhone is available in two versions - SureFox and SureFox Lite. Following are the differences between the two versions: Main Features  SureFox Lite  SureFox Allow browsing of only allowed websites √ √ Change SureFox Admin Password √ √ Restrict Access to SureFox Settings  √ √ Prevent Device Suspend √ √ Allowed Website's Icon Customization √ √ Brightness Control √ √ Enable Browser Plugins √ √ Set Screen Orientation √ √ Enable Upload Server √ √ Enable/Disable Zoom √ √ Enable Upload Server √ √ Set Customized Wal... (more)

How to activate Supervised Mode on iPads/iPhones?

Applies to: Product SureLock Platform iOS To activate Supervised Mode on your iOS device, follow below mentioned steps: Note: Enabling Supervised Mode will wipe all data from your device. 1. Download and install the Apple Configurator on your Mac 2. Attach your iOS device to the Mac 3. Run the Apple Configurator 4. In the header of the configurator, click on the Prepare tab 5. Make sure the Supervision option is switched ON 6. Click Prepare on the bottom of the configurator 7. The device will now be wiped and will reboot as a new iOS device 8. After the process goes through succes... (more)

Windows Azure Tips & Tricks

So you deployed your brand-new ASP.NET web application to Azure cloud. All seems to be working perfectly until a user tried to upload large amount of data (approx. over 30MB) through your application UI. Unfortunately the operation failed. Surprisingly small file uploads works just fine. To fix the problem you need to ensure that the following configuration is made in the web.config file. Here value of maxRequestLength is in KB so that makes it 100MB. Having a bigger executionTimeOut value ensures that the file uplo... (more)

Writing 'Hello World' Program for Windows Phone 7

Windows Phone 7 (WP7) is a cool new mobile platform from Microsoft. Developers can use Silverlight, XNA Framework and of course .NET compact framework for developing applications for WP7. What Do You Need To get started, download and install the following tools on your Windows 7 or Vista PC. http://www.microsoft.com/downloads/details.aspx?FamilyId=2338b5d1-79d8-46af-b828-380b0f854203&displaylang=en Installation includes Visual Studio 2010, Expression Blend, Windows Phone Emulator, XNA Game studio along with all the documentation required for writing your next great app. Note that... (more)