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Difference between two lists

...use SymmetricExceptWith method of HashSet. But it changes the set on which called: var list1 = new List<int> { 1, 2, 3, 4, 5}; var list2 = new List<int> { 3, 4, 5, 6, 7 }; var list1Set = list1.ToHashSet(); //.net framework 4.7.2 and .net core 2.0 and above otherwise new HashSet(list1) ...
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Stored procedure slow when called from web, fast from Management Studio

I have stored procedure that insanely times out every single time it's called from the web application. 7 Answers ...
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android button selector

...view and override the setPressed(Boolean) method. The method is internally called when the change of the pressed state happens. Then change the size of the text accordingly in the method call (don't forget to call the super). ...
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How to prevent a dialog from closing when a button is clicked

...alog. Every time no matter what the input is, the dialog should be automatically closed when I click on the "no" button. How can I disable this? By the way, I have used PositiveButton and NegativeButton for the button on dialog. ...
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What is event bubbling and capturing?

...outermost element and propagated to the inner elements. Capturing is also called "trickling", which helps remember the propagation order: trickle down, bubble up Back in the old days, Netscape advocated event capturing, while Microsoft promoted event bubbling. Both are part of the W3C Documen...
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Getting the current Fragment instance in the viewpager

...to update the fragment that is currently visible. To update that I have to call a method which is in the fragment class. Can someone please suggest how to call that method? ...
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How to define object in array in Mongoose schema correctly with 2d geo index

...s: 'await_approval' }; async.parallel({ //call the function get book model books: function(callback) { Book.findByIdAndUpdate(req.body.book_id, book_fields, {}).exec(callback); }, }, function(error, results) { ...
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How do I integrate Ajax with Django applications?

...sked (you probably know all this by now). Now let's talk about AJAX. AJAX calls are client-side code that does asynchronous requests. That sounds complicated, but it simply means it does a request for you in the background and then handles the response. So when you do an AJAX call for some URL, you...
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Select distinct using linq [duplicate]

...n't actually do all of the work until the enumerable is iterated. When you call ToList it actually walks the entire enumerable forcing all of the work to be done up front. (And may take a little while if your enumerable is infinitely long.) The flipside to this advice is that each time you enumerat...
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How can I take more control in ASP.NET?

...ut runat="server" and give them an ID. Then you can access them programmatically and code without a ViewState. The only downside is that you won't have access to many of the "helpful" ASP.NET server controls like GridViews. I included a Repeater in my example because I'm assuming that you want to ...