是否有一些简单的方法来处理来自同一个表单的多个提交按钮?例如:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" value="Send" />
<input type="submit" value="Cancel" />
<% Html.EndForm(); %>
知道如何在ASP中做到这一点吗?NET框架测试版?我在谷歌上搜索的所有例子中都有单个按钮。
是否有一些简单的方法来处理来自同一个表单的多个提交按钮?例如:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" value="Send" />
<input type="submit" value="Cancel" />
<% Html.EndForm(); %>
知道如何在ASP中做到这一点吗?NET框架测试版?我在谷歌上搜索的所有例子中都有单个按钮。
当前回答
给你的提交按钮一个名字,然后在你的控制器方法中检查提交的值:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" name="submitButton" value="Send" />
<input type="submit" name="submitButton" value="Cancel" />
<% Html.EndForm(); %>
发布到
public class MyController : Controller {
public ActionResult MyAction(string submitButton) {
switch(submitButton) {
case "Send":
// delegate sending to another controller action
return(Send());
case "Cancel":
// call another action to perform the cancellation
return(Cancel());
default:
// If they've submitted the form without a submitButton,
// just return the view again.
return(View());
}
}
private ActionResult Cancel() {
// process the cancellation request here.
return(View("Cancelled"));
}
private ActionResult Send() {
// perform the actual send operation here.
return(View("SendConfirmed"));
}
}
编辑:
要将此方法扩展到本地化站点,请将您的消息隔离在其他地方(例如将资源文件编译为强类型资源类)
然后修改代码,使其像这样工作:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" name="submitButton" value="<%= Html.Encode(Resources.Messages.Send)%>" />
<input type="submit" name="submitButton" value="<%=Html.Encode(Resources.Messages.Cancel)%>" />
<% Html.EndForm(); %>
你的控制器应该是这样的:
// Note that the localized resources aren't constants, so
// we can't use a switch statement.
if (submitButton == Resources.Messages.Send) {
// delegate sending to another controller action
return(Send());
} else if (submitButton == Resources.Messages.Cancel) {
// call another action to perform the cancellation
return(Cancel());
}
其他回答
Index.cshtml @using (Html.BeginForm(“Index”, “Home”, FormMethod.Post, new { id = “submitForm” })) { 按钮类型=“提交” id=“btn批准” 名称=“命令” 值=“批准”>批准 按钮类型=“提交” id=“btn拒绝” 名称=“命令” 值=“拒绝”>拒绝 }
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}
[HttpPost]
public ActionResult Index(FormCollection frm, string Command)
{
if (Command == "Approve")
{
}
else if (Command == "Reject")
{
}
return View();
}
}
我来派对已经很晚了,但现在开始… 我的实现借用了@mkozicki,但需要更少的硬编码字符串来出错。需要4.5+框架。实际上,控制器方法名应该是路由的关键。
标记。按钮名称必须以“action:[controllerMethodName]”为键
(注意使用c# 6的API名称,提供了对希望调用的控制器方法名称的特定类型引用。
<form>
... form fields ....
<button name="action:@nameof(MyApp.Controllers.MyController.FundDeathStar)" type="submit" formmethod="post">Fund Death Star</button>
<button name="action:@nameof(MyApp.Controllers.MyController.HireBoba)" type="submit" formmethod="post">Hire Boba Fett</button>
</form>
控制器:
namespace MyApp.Controllers
{
class MyController
{
[SubmitActionToThisMethod]
public async Task<ActionResult> FundDeathStar(ImperialModel model)
{
await TrainStormTroopers();
return View();
}
[SubmitActionToThisMethod]
public async Task<ActionResult> HireBoba(ImperialModel model)
{
await RepairSlave1();
return View();
}
}
}
属性的魔法。注意使用CallerMemberName功能。
[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class SubmitActionToThisMethodAttribute : ActionNameSelectorAttribute
{
public SubmitActionToThisMethodAttribute([CallerMemberName]string ControllerMethodName = "")
{
controllerMethod = ControllerMethodName;
actionFormat = string.Concat(actionConstant, ":", controllerMethod);
}
const string actionConstant = "action";
readonly string actionFormat;
readonly string controllerMethod;
public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo)
{
var isValidName = false;
var value = controllerContext.Controller.ValueProvider.GetValue(actionFormat);
if (value != null)
{
controllerContext.Controller.ControllerContext.RouteData.Values[actionConstant] = controllerMethod;
isValidName = true;
}
return isValidName;
}
}
你应该能够为按钮命名并赋予它们一个值;然后将此名称映射为操作的参数。或者,使用2个单独的动作链接或2个表单。
你可以这样写:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" name="button" value="Send" />
<input type="submit" name="button" value="Cancel" />
<% Html.EndForm(); %>
然后在页面中检查name == "Send"或者name == "Cancel"…
//model
public class input_element
{
public string Btn { get; set; }
}
//views--submit btn can be input type also...
@using (Html.BeginForm())
{
<button type="submit" name="btn" value="verify">
Verify data</button>
<button type="submit" name="btn" value="save">
Save data</button>
<button type="submit" name="btn" value="redirect">
Redirect</button>
}
//controller
public ActionResult About()
{
ViewBag.Message = "Your app description page.";
return View();
}
[HttpPost]
public ActionResult About(input_element model)
{
if (model.Btn == "verify")
{
// the Verify button was clicked
}
else if (model.Btn == "save")
{
// the Save button was clicked
}
else if (model.Btn == "redirect")
{
// the Redirect button was clicked
}
return View();
}