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Type Checking: typeof, GetType, or is?
...ways what the type of the expression is. Remember, a generic method is basically a whole bunch of methods with the appropriate type. Example:
string Foo<T>(T parameter) { return typeof(T).Name; }
Animal probably_a_dog = new Dog();
Dog definitely_a_dog = new Dog();
Foo(probably_a_dog); //...
Creating a comma separated list from IList or IEnumerable
...t;T> source)
{
return new List<T>(source).ToArray();
}
Then call it like this:
IEnumerable<string> strings = ...;
string[] array = Helpers.ToArray(strings);
You can then call string.Join. Of course, you don't have to use a helper method:
// C# 3 and .NET 3.5 way:
string join...
Determine project root from a running node.js application
...ts, this method will fail.
global.X
Node has a a global namespace object called global — anything that you attach to this object will be available everywhere in your app. So, in your index.js (or app.js or whatever your main app file is named), you can just define a global variable:
// index.j...
Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
...u've actually got None. That usually means that an assignment or function call up above failed or returned an unexpected result.
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When to use: Java 8+ interface default method, vs. abstract method
Java 8 allows for default implementation of methods in interfaces called Default Methods .
15 Answers
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MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
... pParent = NULL); // 标准构造函数
// 对话框数据
enum { IDD = IDD_RADIOBUTTONINSTANCE_DIALOG };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
HICON m_hIcon;
// 生成的消息映射函数
...
UITableViewCell subview disappears when cell is selected
...s when cell is selected or highlighted ,You can Solve this problem by overriding Tableview cell's setSelected:animated and setHighlighted:animated and resetting view background color.
In Objective C :
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
UIColor *color = self.yourView.ba...
MySQL error code: 1175 during UPDATE in MySQL Workbench
...e MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
...
How to detect Windows 64-bit platform with .NET?
...ntPtr.Size), and if you are running in a 32-bit process, you still have to call the Win API function IsWow64Process. If this returns true, you are running in a 32-bit process on 64-bit Windows.
Microsoft's Raymond Chen:
How to detect programmatically whether you are running on 64-bit Windows
My solu...
How do I center a window onscreen in C#?
...
The documentation you reference does say "Do not call this directly from your code." though it doesn't say why.
– Stephen Turner
Jun 9 '14 at 13:11
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