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How to add Options Menu to Fragment in Android
...y has the Toolbar in its layout and declares it via setSupportActionBar(). Then the Fragments can participate in the menu population of this exact ActionBar:
Fragment.onCreateOptionsMenu(): Initialize the contents of the Fragment host's standard options menu.
If you want a standalone toolbar a...
DropDownList's SelectedIndexChanged event not firing
...
Set DropDownList AutoPostBack property to true.
Eg:
<asp:DropDownList ID="logList" runat="server" AutoPostBack="True"
onselectedindexchanged="itemSelected">
</asp:DropDownList>
sh...
How to get current user, and how to use User class in MVC5?
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If you're coding in an ASP.NET MVC Controller, use
using Microsoft.AspNet.Identity;
...
User.Identity.GetUserId();
Worth mentioning that User.Identity.IsAuthenticated and User.Identity.Name will work without adding the above mentioned using st...
How to return a 200 HTTP Status Code from ASP.NET MVC 3 controller
...contain this overload. msdn.microsoft.com/en-us/library/hh413957(v=vs.118).aspx
– MEMark
Feb 25 '14 at 14:27
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show 7 more comments
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What's the best way to trim std::string?
...first_not_of(t));
return s;
}
// trim from both ends of string (right then left)
inline std::string& trim(std::string& s, const char* t = ws)
{
return ltrim(rtrim(s, t), t);
}
By supplying the characters to be trimmed you have the flexibility to trim non-whitespace characters and ...
Type erasure techniques
...
so, if the shared_ptr then stores a Derived *, but the Base * did not declare the destructor as virtual, shared_ptr<void> still works as intended, since it never even knew about a base class to begin with. Cool!
– TamaM...
Asp.NET Web API - 405 - HTTP verb used to access this page is not allowed - how to set handler mappi
I wrote REST service using ASP.NET Web API.
I'm trying to send HttpDelete request, however I get the following error:
14 An...
How do I get the collection of Model State Errors in ASP.NET MVC?
How do I get the collection of errors in a view?
8 Answers
8
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How can I iterate over an enum?
...itly put the size in the type in the header: static const Type All[3]; and then I'm able to initialize in the source: const MyEnum::Type MyEnum::All[3] = { a, b, c }; Before doing that, I was getting obnoxious Error in range-based for... errors (because the array had an unknown size). Figured this...
为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...供已下载好的工程源码，关注页面底部公众号（或搜索“fun123cn”关注），回复“源码”即可免费下载。
代码编写
采用自己较为熟悉的java开发环境就行，这里推荐使用VSCode，拓展目录在 appinventor-sources/appinvent...