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Detecting WPF Validation Errors

...The posted code did not work for me when using a ListBox. I rewrote it and now it works: public static bool IsValid(DependencyObject parent) { if (Validation.GetHasError(parent)) return false; // Validate all the bindings on the children for (int i = 0; i != VisualTreeHelper.Ge...
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SQLite DateTime comparison

...f today. I arrived at the following. WHERE dateTimeRecorded between date('now', 'start of day','-2 days') and date('now', 'start of day', '+1 day') Ok, technically I also pull in midnight on tomorrow like the original poster, if there was any data, but my data is all...
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PHP json_decode() returns NULL with valid JSON?

... Nah, this should work. I can't do more testing right now, if I get to it later I'll post here. There are also a few hints in the user contributed notes: de.php.net/json_decode maybe something helps. – Pekka Mar 9 '10 at 16:09 ...
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twitter bootstrap typeahead ajax example

...ed' ? false : process(json.options); } }); } }); Now you can make a unified code, placing "json-request" links in your HTML-code. share | improve this answer | ...
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#ifdef #ifndef in Java

...with "final" modifier Java compiler itself solves the problem. Because it knows in advance what would be the result of testing this condition. For example this code: boolean flag1 = true; boolean flag2 = false; int j=0; for(int i=0;i<1000000000;i++){ if(flag1) ...
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How can I access “static” class variables within class methods in Python?

... bar = 1 @classmethod def bah(cls): print cls.bar Now if bah() has to be instance method (i.e. have access to self), you can still directly access the class variable. class Foo(object): bar = 1 def bah(self): print self.bar ...
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MySQL Workbench: How to keep the connection alive

... From the now unavailable internet archive: Go to Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400. Close and reopen MySQL Workbe...
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Mercurial Eclipse Plugin

... Prorper link is now vectrace.com/projects/mercurialeclipse but its only a redirect to the new proper project place bitbucket.org/mercurialeclipse/main – zingo Mar 13 '13 at 12:28 ...
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The import org.junit cannot be resolved

... I added JUnit 4 via Properties -> Java Build Path, but every now and then Eclipse still shows me this error, though running the tests is possible without problems. Restarting Eclipse resolves the problem - for a while. Any explanation for this? – Thomas W ...
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Get the device width in javascript

...max-width value of the html tag: maxwidth = $('html').css('max-width'); Now you can use this value to make conditional changes: If (maxwidth == '480px') { do something } If putting the max-width value on the html tag seems scary, then maybe you can put on a different tag, one that is only used...