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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?

...Available overloads are 1, 2 or 3 object parameters, 4 object parameters + __arglist and a params object array version. – Wormbo May 30 '12 at 17:20 ...
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Is there any way to git checkout previous branch?

... wow, I totally should have just tried it! figured - was a shell-ism, and that if the functionality was in git, it would be something different – Matt Briggs Aug 26 '11 at 16:17 ...
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Extension methods cannot be dynamically dispatched

...el IEnumerable<dynamic> @PartialExtensions.Partial(Html, "~/link/to/_partialView.cshtml", Model) Wrapping it in a class. public class DynamicQueryResult { public dynamic QueryResults {get; set;} } Then in your MVC View: @model Namespace.DynamicQueryResult @Html.Partial("~/link/to/_...
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Android and XMPP: Currently available solutions [closed]

... Edited comments > hi all > I am using asmack for developing my xmpp client,I am facing a problem > When i come from 1st time login I start my chatting with user B and receiving messages from user B also that is fine.i switch off my wifi and...
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Google OAuth 2 authorization - Error: redirect_uri_mismatch

...JavaScript origins empty and Authorized redirect URIs as 127.0.0.1/google_account/authentication and it worked from me. – Krishh Apr 13 '16 at 10:59 1 ...
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What is Linux’s native GUI API?

...heir own APIs to handle windows, events and other OS stuff. I have never really got a clear answer as to what Linux’s equivalent is? ...
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Write applications in C or C++ for Android? [closed]

... Normally, you have to: Install Google Android NDK. It contains libs, headers, makfile examples and gcc toolchain Build an executable from your C code for ARM, optimize and link it with provided libs if required Connect to a pho...
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What's the use/meaning of the @ character in variable names in C#?

...terfacing with other programming languages. The character @ is not actually part of the identifier, so the identifier might be seen in other languages as a normal identifier, without the prefix. An identifier with an @ prefix is called a verbatim identifier. ...
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Pandas: drop a level from a multi-level column index?

... @yoonghm It is there, you are probably just calling it on columns that don't have a multi-index – matt harrison Dec 18 '18 at 14:59 1 ...
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How to urlencode data for curl command?

... @kberg actually, this will only work for query data. curl will append a '?' followed by the urlencoded params. If you want to urlencode some url postfix (such as a CouchDB GET for some document id), then '--data-urlencode' won't work. ...