是否可以从加载的app.config文件的applicationSettings部分访问值?
我找到了一个示例如何检索appSettings,但我无法通过这种方式找到如何访问applicationSettings.
.net configuration app-config application-settings visual-studio
我写了这个扩展方法:
public static DataTable ToDataTable<T>(this IList<T> list)
{...}
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如果在编译时使用已知类型调用它,它的效果很好:
DataTable tbl = new List<int>().ToDataTable();
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但是如果通用类型未知,如何调用呢?
object list = new List<int>();
...
tbl = Extension.ToDataTable((List<object>)list); // won't work
Run Code Online (Sandbox Code Playgroud) I want to create an int[n] array of unique numbers:
int[] result = new int[24];
for(int i = 0; i<24; i++)
result[i] = 1;
return result;
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Is there a shorter way to accomplish this. May be something like this:
return (from i in new int[24]
select 1).ToArray();
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But not as ugly as this.
我有一个原生的C++ DLL,一些头文件和导入库.有没有办法如何在dll中定义的C#中实例化对象?
我所知道的两种方式是: