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Type of conditional expression cannot be determined because there is no implicit conversion between
... spec:
If only one of x and y has a type, and both x and y are implicitly convertible to that type, then that is the type of the conditional expression.
The issue here is that in
int? number = true ? 5 : null;
only one of the conditional results has a type. Here x is an int literal, and y is null...
Nullable type as a generic parameter possible?
...
I think you want to handle Reference types and struct types.
I use it to convert XML Element strings to a more typed type.
You can remove the nullAlternative with reflection.
The formatprovider is to handle the culture dependent '.' or ',' separator in e.g. decimals or ints and doubles.
This may w...
What is array to pointer decay?
...rrays are basically the same as pointers in C/C++, but not quite. Once you convert an array:
const int a[] = { 2, 3, 5, 7, 11 };
into a pointer (which works without casting, and therefore can happen unexpectedly in some cases):
const int* p = a;
you lose the ability of the sizeof operator to c...
Delegates: Predicate vs. Action vs. Func
...
There's also System.Converter<TInput, TOutput>, though it's rarely used.
– G-Wiz
Jan 4 '10 at 23:03
4
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Way to go from recursion to iteration
...sion where the last statement is the recursive call). Once you have that, converting it to iteration is generally pretty easy.
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Generic type conversion FROM string
...this one helps.
public class TypedProperty<T> : Property where T : IConvertible
{
public T TypedValue
{
get { return (T)Convert.ChangeType(base.Value, typeof(T)); }
set { base.Value = value.ToString();}
}
}
...
convert an enum to another type of enum
...n many developers giving up to the urge of using integer value of enums to convert them but this is very error prone. The old school method of writing 2 functions has proven its worth over time...
– Hemant
Nov 30 '09 at 6:33
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What is the JavaScript >>> operator and how do you use it?
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It doesn't just convert non-Numbers to Number, it converts them to Numbers that can be expressed as 32-bit unsigned ints.
Although JavaScript's Numbers are double-precision floats(*), the bitwise operators (<<, >>, &, | and ...
How can I easily view the contents of a datatable or dataview in the immediate window
...T ABOUT e.Message + e.StackTrace from Bromberg eggcafe
int output = System.Convert.ToInt16(System.Configuration.ConfigurationSettings.AppSettings["DebugOutput"] );
//0 - do not debug anything just run the code
switch (output)
{
//do not debug anything
case 0:
msg = String.Empty...
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...PHP-FPM说白了是一个管理FastCGI的一个管理器，它作为PHP的插件纯在，在安装PHP要想使用PHP-FPM时就需要把PHP-FPM以补丁的形式安装到PHP中，而且PHP要与PHP-FPM版本一致，这是必须的，切记！
首先我们把PHP和PHP-FPM...