[英]How to point a delegate to an extension method
public class UITestCtrl
{
}
public static class Ext
{
public static void FindElement(this UITestCtrl clas)
{
}
}
public class Brwsr : UITestCtrl
{
public void FindElement()
{
}
}
現在,我試圖將委托指向擴展方法
private delegate void MyDell_();
MyDell_ dell = new MyDell_(Ext.FindElement());
我收到錯誤:
錯誤CS7036沒有給出的參數對應於'Ext.FindElement(UITestCtrl)'所需的形式參數'clas'
謝謝
// Your extension method is simply a static method taking one parameter and returning void,
// so an action is appropriate delegate signature:
Action<UITestCtrl> dell = Ext.FindElement;
UITestCtrl control = new UITestCtrl();
dell(control);// calling the extension method via the assigned delegate, passing the one parameter
這是一個控制台應用程序,而不是UITestCtrl我使用了List:
static class Ext
{
public static void FindElement(List<string> test)
{
test.Add("blah");
}
}
class Program
{
static void Main(string[] args)
{
Action<List<string>> dell = Ext.FindElement;
var control = new List<string>();
dell(control);// calling the extension method via the assigned delegate
}
}
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