6.2ActionResult的使用
ActionResult
public abstract class ActionResult
{
public abstract void ExecuteResult(ControllerContextcontext);
}
命令模式
容器对象
ActionResult的重载
-EmptyResult 没有任何匹配和执行
-ContentResult 输出纯文本 AJAX
-JsonResult
-RedirectResult
-RedirectToRouteResult
-ViewResult
-PartialViewResult
-FileResult －File操作 FilePathResult FileContentResult FileStreamResult
-FileContentResult
-FileStreamResult
-JavaScriptResult
JsonResult
public ActionResultPartialJson()
{
varcategory = new ProductCategory{ Name=”Partial”};
varresult = new {
Name = category.Name,
ProductCount= category.Products.Count};
return Json(result);
}
JavaScriptResult
public ActionResultDoSomething() {
script s = “$(‘#some-div’).html(‘Updated!’);”
;return JavaScript(s);
}
<%: Ajax.ActionLink(“click”, “DoSomething”, new AjaxOptions()) %>
<div id=”some-div”></div>
RedirectResult
自动跳转
RedirectToRouteResult
－RedirectToRoute
－RedirectToAction
ViewResult和PartialViewResult
使用字典类返回结果
Action Result Helper函数
输出结果帮助函数
方法描述
Redirect
RedirectToAction
RedirectToRoute
View
PartialView
Content
File
Json
JavaScript
隐式调用Action Results
public double Distance(int x1, int y1, int x2, int y2)
{
double xSquared= Math.Pow(x2 -x1, 2);
double ySquared= Math.Pow(y2 -y1, 2);
return Math.Sqrt(xSquared+ ySquared);
}
public ActionResultDistance(intx1, inty1, intx2, inty2)
{
double xSquared= Math.Pow(x2 -x1, 2);
double ySquared= Math.Pow(y2 -y1, 2);
double distance = Math.Sqrt(xSquared+ ySquared);
return Content(distance.ToString(CultureInfo.InvariantCulture));
}
2011-4-17 16:16 danny
