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How to save an HTML5 Canvas as an image on a server?

I'm working on a generative art project where I would like to allow users to save the resulting images from an algorithm. The general idea is: ...
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Update relationships when saving changes of EF4 POCO objects

...ost to context. After attaching object to context the state of the object, all related objects and all relations is set to Unchanged. Use context.ObjectStateManager.ChangeObjectState to set your BlogPost to Modified Iterate through Tag collection Use context.ObjectStateManager.ChangeRelationshipStat...
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What are the differences between WCF and ASMX web services?

I am totally confused between WCF and ASMX web services. I have used a lot of web services in my earlier stage, and now there is this new thing introduced called WCF. I can still create WCF that function as a web service. I think there will be more stuff in WCF. ...
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How to run an EXE file in PowerShell with parameters with spaces and quotes

...mand starting with a string it just evaluates the string, that is, it typically echos it to the screen, for example: PS> "Hello World" Hello World If you want PowerShell to interpret the string as a command name then use the call operator (&) like so: PS> & 'C:\Program Files\IIS\Mi...
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Java Keytool error after importing certificate , “keytool error: java.io.FileNotFoundException & Acc

...mmand prompt in administrator mode. If not, you can also go to start -> all programs -> accessories -> right click command prompt and click 'run as administrator'. share | improve this ans...
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How do I access the request object or any other variable in a form's clean() method?

... but how can I access the request object? Can I modify the clean method to allow variables input? 11 Answers ...
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How do I import a namespace in Razor View Page?

... Finally found the answer. @using MyNamespace For VB.Net: @Imports Mynamespace Take a look at @ravy amiry's answer if you want to include a namespace across the app. ...
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Converting Long to Date in Java returns 1970

...ime.Instant // Represent a moment as seen in UTC. Internally, a count of nanoseconds since 1970-01-01T00:00Z. .ofEpochSecond( 1_220_227_200L ) // Pass a count of whole seconds since the same epoch reference of 1970-01-01T00:00Z. Know Your Data People use various precisions in...
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Checking network connection

...t have a working internet connection, the DNS lookup itself may block the call to urllib_request.urlopen for more than a second. Thanks to @rzetterberg for pointing this out. If the fixed IP address above is not working, you can find a current IP address for google.com (on unix) by running % dig...
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What is the difference between an Azure Web Site and an Azure Web Role

...pps (formerly Web Sites): Ability to run elevated startup scripts to install apps, modify registry settings, install performance counters, fine-tune IIS, etc. Ability to split an app up into tiers (maybe Web Role for front end, Worker Role for backend processing) and scale independently Ability to...