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Selecting a row of pandas series/dataframe by integer index

... edited Jun 5 '18 at 12:40 marc_aragones 3,37644 gold badges2323 silver badges3333 bronze badges answered Apr 19 '13 at 12:20 ...
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Optional query string parameters in ASP.NET Web API

...ect using [FromUri] doesn't directly answer the original question. It basically says populate these models with the values from the Uri. The models properties would need to be nullable or a reference type in order for them to support being optional. Added additional information. ...
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How do you create different variable names while in a loop? [duplicate]

...can do this is with exec(). For example: for k in range(5): exec(f'cat_{k} = k*2') >>> print(cat_0) 0 >>> print(cat_1) 2 >>> print(cat_2) 4 >>> print(cat_3) 6 >>> print(cat_4) 8 Here I am taking advantage of the handy f string formatting in Pytho...
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How do I make a textbox that only accepts numbers?

... with this two event handlers on a standard TextBox: private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) && (e.KeyChar != '.')) { e.Handled = true; } // only allow one de...
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How to get Url Hash (#) from server side

...e with .ClientID but we found it simpler to just use the wrapper DIV as it allows all this Javascript to live in an external file and be used in a generic fashion. If the hidden input field has a valid value, set that as the URL hash (window.location.hash again) and/or perform other actions. We us...
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How to reference a .css file on a razor view?

... @Marc It's rendered on a place, where you call RenderSection (surprisingly :), not at the end of the header. – David Ferenczy Rogožan Mar 26 '15 at 22:13 ...
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How to git-cherry-pick only changes to certain files?

... This doesn't seem to preserve authorship (at all). In some cases that won't matter, in other cases it will. – AlanSE Sep 13 '19 at 17:42 ...
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C# pattern to prevent an event handler hooked twice [duplicate]

...ution and the best one (considering performance) is: private EventHandler _foo; public event EventHandler Foo { add { _foo -= value; _foo += value; } remove { _foo -= value; } } No Linq using required. No need to check for null before cancelling a subscrip...
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What are 'closures' in .NET?

...thod and the variable j [CompilerGenerated] private sealed class <>c__DisplayClass2 { public <>c__DisplayClass2(); public void <fillFunc>b__0() { Console.Write("{0} ", this.j); } public int j; } for the function: static void fillFunc(int count) { ...
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How do I find the install time and date of Windows?

...estion, but how can I find out (hopefully via an API/registry key) the install time and date of Windows? 19 Answers ...