如何在同一控制器中调用方法并让调用函数在 return 视图上停止执行？

Question

我有这个，

public ActionResult IndexByName(string lastName)
{
    //find the name
    return View("Index", myObject);
}

public ActionResult SomeOtherAction(IFormCollection collection)
{
    if (collection["somekey"] == "search")
    {
        this.IndexByName(collection["lastname"]);
    }
    //other stuff in this method that I don't want to run if it says search
}

我怎样才能阻止方法 SomeOtherAction 的其余部分继续进行？我希望应用程序在另一种方法中 return 到 View("Index")。

Answer 1

在 C# 中，return 关键字将存在于当前方法中，return 控制它的调用方法。来自 documentation:

The return statement terminates execution of the method in which it appears and returns control to the calling method. It can also return an optional value. If the method is a void type, the return statement can be omitted.

例如，您可以使用这个：

public ActionResult IndexByName(string lastName)
{
    return View("Index", myObject);
}

public ActionResult SomeOtherAction(IFormCollection collection)
{
    if (collection["somekey"] == "search")
    {
        // This will return the result of IndexByName()
        // and exist the SomeOtherAction method
        return IndexByName(collection["lastname"]); 
    }
    else
    {
        // This will return the View SomeOtherView
        // and exist the SomeOtherAction method
        return View("SomeOtherView");
    }

    // In theorty this would  return an HTTP 200
    // but it is NEVER hit. All execution paths 
    // within this method resolved before we 
    // ever got here.
    return Ok();
}

如何在同一控制器中调用方法并让调用函数在 return 视图上停止执行？

How do I call a method in the same controller and have the calling function stop execution on a return View?

c#

action

controller

asp.net-core-2.0