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DataTrigger where value is NOT null?

I know that I can make a setter that checks to see if a value is NULL and do something. Example: 12 Answers ...
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What is the overhead of creating a new HttpClient per call in a WebAPI client?

...e the connection is bound to the HttpClientHandler. I know that to scale I don't want to destroy the connection so I need to either keep a HttpClientHandler around and create all of my HttpClient instances from that OR create a static HttpClient instance. However, If the CookieContainer is bound to...
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Change Checkbox value without triggering onCheckChanged

... No, you can't do it. The onCheckedChanged method is called directly from setChecked. What you can do is the following: mCheck.setOnCheckedChangeListener (null); mCheck.setChecked (false); mCheck.setOnCheckedChangeListener (mListener); S...
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How do I get user IP address in django?

How do I get user's IP in django? 11 Answers 11 ...
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Using success/error/finally/catch with Promises in AngularJS

...an error!",e); throw e; // rethrow to not marked as handled } // do more stuff with res } catch (e){ // handle errors in processing or in error. } The promisified version is very similar: $http.get("url"). then(someProcessingOf). catch(function(e){ console.log("got an error in i...
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How do I get the name of the current executable in C#?

... System.AppDomain.CurrentDomain.FriendlyName share | improve this answer | follow | ...
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Adjust UIButton font size to width

...kMode = NSLineBreakByClipping; //<-- MAGIC LINE I'm not sure why this does the trick but it does :) share | improve this answer | follow | ...
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When should I use malloc in C and when don't I?

... that allocated memory. Now this array is both read and write. You can now do: some_memory[0] = 'h'; and the array contents change to "hello World" share | improve this answer | ...
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How to run functions in parallel?

...functions still didn't start at the same time. – lmcadory Aug 26 '11 at 16:26 4 @Lamar McAdory: P...
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Git - Undo pushed commits

...nges already pushed to remote and pulled from the server. Now, I want to undo those changes. So I could just git checkout to the commit before the changes and commit the new changes, but I'm guessing that there will be problems to push them again to remote. Any suggestion on how should I proceed? ...