C#/.NET开发问题

Change printer default paper size(更改打印机默认纸张大小)
Change default audio device on Windows 7(更改 Windows 7 上的默认音频设备)
The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly(请求的性能计数器不是自定义计数器,它必须初始化为 ReadOnly)
Windows 7 style Dropshadow in borderless form(无边框形式的 Windows 7 样式 Dropshadow)
How to make a WPF Window to blink on the taskbar?(如何使 WPF 窗口在任务栏上闪烁?)
Invalid request BLR at offset 258 , function HASHMD5 is not defined?(偏移量 258 处的请求 BLR 无效,未定义函数 HASHMD5?)
Open a Windows 7 Library in Windows Explorer(在 Windows 资源管理器中打开 Windows 7 库)
Please Explain .NET Delegates(请解释 .NET 代表)
Difference between Funclt;gt; with delegate and lambda expression(Func 之间的区别使用委托和 lambda 表达式)
How can I dynamically create an Actionlt;Tgt; at runtime?(如何动态创建一个动作lt;Tgt;在运行时?)
Error in C#: quot;An object reference is required for the non-static field, method, or propertyquot;(C# 中的错误:“非静态字段、方法或属性需要对象引用)
Cannot convert lambda expression to type #39;System.Delegate#39; because it is not a delegate type?(无法将 lambda 表达式转换为类型“System.Delegate,因为它不是委托类型?)