Timothy's Space 君看一叶舟，出没风波里

DataClassDataContext ctx = new DataClassDataContext();
var result = ctx.Products.Where(p => p.ProductID >= 10);
 
foreach (var product in result)
{
    Console.WriteLine(product.ProductName);
}

DataClassDataContext ctx = new DataClassDataContext();
ctx.Products.Where(p => p.ProductID >= 10).ForEach(p => Console.WriteLine(p.ProductName));

public static void ForEach<T> (this IEnumerable<T> source, Action<T> action)
{
        foreach(var item in source)
        {
            action(item);
        }
}

string [] names = new string[] {"Andy", "Timothy", "Ben", "Rex", "Ven", "Ken"};
 
if(names.Contains("Timothy"))
{
    Console.WriteLine("Found!");
}

if ("Timothy".In("Andy", "Timothy", "Ben", "Rex", "Ven", "Ken"))
{
    Console.WriteLine("Found!");
}

public static bool <T>(this T t, params T[] c)
{
    return c.Contains(t);
}

public static IEnumerable<T> GetControls<T>(this Control control, Func<T, bool> filter) where T : Control
{
	foreach (Control c in control.Controls)
 	{
		if (c is T&&(filter == null||filter(c as T)))
		{
 			yield return c as T;
 		}
 		foreach (T _t in GetControls<T>(c, filter))
 		yield return _t;
 	}
}

this.GetControls<Button>(null).ForEach(b => b.Enabled = false);  //禁用界面上所有Button控件