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LINQ with groupby and count

... After calling GroupBy, you get a series of groups IEnumerable<Grouping>, where each Grouping itself exposes the Key used to create the group and also is an IEnumerable<T> of whatever items are in your original data set. You just have to call Count() on that Grouping ...
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Remove specific commit

...project, and he edited a bunch of files that shouldn't have been edited. Somehow I merged his work into mine, either when I pulled it, or when I tried to just pick the specific files out that I wanted. I've been looking and playing for a long time, trying to figure out how to remove the commits that...
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How to kill an Android activity when leaving it so that it cannot be accessed from the back button?

...n Android activity, I would like to start a new activity for the user at some point. Once they leave the first activity and arrive at the second, the first activity is stale and I want to remove it completely so it can not be accessed again from the back button. ...
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how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)

...d like to add a jQuery way, if this can help anyone. <script> $(document).ready(function() { $(".backup_picture").on("error", function(){ $(this).attr('src', './images/nopicture.png'); }); }); </script> <img class='backup_picture' src='./images/nonexistent_image_file...
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Can I get a list of files marked --assume-unchanged?

What have I marked as --assume-unchanged ? Is there any way to find out what I've tucked away using that option? 5 Answers...
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“Application tried to present modally an active controller”?

I just came across a crash showing a NSInvalidArgumentException with this message on an app which wasn't doing this before. ...
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How to change the foreign key referential action? (behavior)

...two step process: Suppose, a table1 has a foreign key with column name fk_table2_id, with constraint name fk_name and table2 is referred table with key t2 (something like below in my diagram). table1 [ fk_table2_id ] --> table2 [t2] First step, DROP old CONSTRAINT: (reference) A...
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How to simulate a click by using x,y coordinates in JavaScript?

... You can dispatch a click event, though this is not the same as a real click. For instance, it can't be used to trick a cross-domain iframe document into thinking it was clicked. All modern browsers support document.elementFromPoint and HTMLElement.prototype.click(), since at least...
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How to get relative path from absolute path

...pace to display the whole path, but I don't want to display only the filename as it might be ambiguous. So I would prefer to show the file path relative to the assembly/exe directory. ...
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submit a form in a new tab

I'd like (just to test some functions, after I'll avoid this behaviour) to load the page called by submit on a new tab : is it possible? ...