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
我不喜欢ActionSelectName的地方是IsValidName被控制器中的每个动作方法调用;我不知道为什么会这样。我喜欢一种解决方案,每个按钮都有一个不同的名称,基于它的功能,但我不喜欢这样的事实,你必须有许多参数在动作方法中的按钮在表单。我已经为所有按钮类型创建了一个枚举:
public enum ButtonType
{
Submit,
Cancel,
Delete
}
而不是ActionSelectName,我使用ActionFilter:
public class MultipleButtonsEnumAttribute : ActionFilterAttribute
{
public Type EnumType { get; set; }
public MultipleButtonsEnumAttribute(Type enumType)
{
EnumType = enumType;
}
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
foreach (var key in filterContext.HttpContext.Request.Form.AllKeys)
{
if (Enum.IsDefined(EnumType, key))
{
var pDesc = filterContext.ActionDescriptor.GetParameters()
.FirstOrDefault(x => x.ParameterType == EnumType);
filterContext.ActionParameters[pDesc.ParameterName] = Enum.Parse(EnumType, key);
break;
}
}
}
}
过滤器将在表单数据中找到按钮名称,如果按钮名称与枚举中定义的任何按钮类型匹配,它将在动作参数中找到ButtonType参数:
[MultipleButtonsEnumAttribute(typeof(ButtonType))]
public ActionResult Manage(ButtonType buttonPressed, ManageViewModel model)
{
if (button == ButtonType.Cancel)
{
return RedirectToAction("Index", "Home");
}
//and so on
return View(model)
}
然后在视图中,我可以使用:
<input type="submit" value="Button Cancel" name="@ButtonType.Cancel" />
<input type="submit" value="Button Submit" name="@ButtonType.Submit" />
其他回答
David Findley在他的ASP上写了3种不同的选择。网络博客。
阅读文章的多个按钮以相同的形式查看他的解决方案,以及每个方案的优缺点。恕我直言,他提供了一个非常优雅的解决方案,利用属性,你装饰你的行动。
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();
}
}
我已经为HtmlHelper创建了一个ActionButton方法。它将在OnClick事件中生成带有javascript的普通输入按钮,将表单提交给指定的控制器/动作。
像这样使用辅助器
@Html.ActionButton("MyControllerName", "MyActionName", "button text")
这将生成以下HTML
<input type="button" value="button text" onclick="this.form.action = '/MyWebsiteFolder/MyControllerName/MyActionName'; this.form.submit();">
下面是扩展方法代码:
VB。网
<System.Runtime.CompilerServices.Extension()>
Function ActionButton(pHtml As HtmlHelper, pAction As String, pController As String, pRouteValues As Object, pBtnValue As String, pBtnName As String, pBtnID As String) As MvcHtmlString
Dim urlHelperForActionLink As UrlHelper
Dim btnTagBuilder As TagBuilder
Dim actionLink As String
Dim onClickEventJavascript As String
urlHelperForActionLink = New UrlHelper(pHtml.ViewContext.RequestContext)
If pController <> "" Then
actionLink = urlHelperForActionLink.Action(pAction, pController, pRouteValues)
Else
actionLink = urlHelperForActionLink.Action(pAction, pRouteValues)
End If
onClickEventJavascript = "this.form.action = '" & actionLink & "'; this.form.submit();"
btnTagBuilder = New TagBuilder("input")
btnTagBuilder.MergeAttribute("type", "button")
btnTagBuilder.MergeAttribute("onClick", onClickEventJavascript)
If pBtnValue <> "" Then btnTagBuilder.MergeAttribute("value", pBtnValue)
If pBtnName <> "" Then btnTagBuilder.MergeAttribute("name", pBtnName)
If pBtnID <> "" Then btnTagBuilder.MergeAttribute("id", pBtnID)
Return MvcHtmlString.Create(btnTagBuilder.ToString(TagRenderMode.Normal))
End Function
c# (c#代码只是从VB DLL中反编译的,所以它可以得到一些美化…但是时间太短了:-)
public static MvcHtmlString ActionButton(this HtmlHelper pHtml, string pAction, string pController, object pRouteValues, string pBtnValue, string pBtnName, string pBtnID)
{
UrlHelper urlHelperForActionLink = new UrlHelper(pHtml.ViewContext.RequestContext);
bool flag = Operators.CompareString(pController, "", true) != 0;
string actionLink;
if (flag)
{
actionLink = urlHelperForActionLink.Action(pAction, pController, System.Runtime.CompilerServices.RuntimeHelpers.GetObjectValue(pRouteValues));
}
else
{
actionLink = urlHelperForActionLink.Action(pAction, System.Runtime.CompilerServices.RuntimeHelpers.GetObjectValue(pRouteValues));
}
string onClickEventJavascript = "this.form.action = '" + actionLink + "'; this.form.submit();";
TagBuilder btnTagBuilder = new TagBuilder("input");
btnTagBuilder.MergeAttribute("type", "button");
btnTagBuilder.MergeAttribute("onClick", onClickEventJavascript);
flag = (Operators.CompareString(pBtnValue, "", true) != 0);
if (flag)
{
btnTagBuilder.MergeAttribute("value", pBtnValue);
}
flag = (Operators.CompareString(pBtnName, "", true) != 0);
if (flag)
{
btnTagBuilder.MergeAttribute("name", pBtnName);
}
flag = (Operators.CompareString(pBtnID, "", true) != 0);
if (flag)
{
btnTagBuilder.MergeAttribute("id", pBtnID);
}
return MvcHtmlString.Create(btnTagBuilder.ToString(TagRenderMode.Normal));
}
这些方法具有各种参数,但是为了便于使用,您可以创建一些重载,只使用所需的参数。
它短小而紧凑:
Jeroen Dop回答了这个问题
<input type="submit" name="submitbutton1" value="submit1" />
<input type="submit" name="submitbutton2" value="submit2" />
在后面的代码中这样做
if( Request.Form["submitbutton1"] != null)
{
// Code for function 1
}
else if(Request.Form["submitButton2"] != null )
{
// code for function 2
}
祝你好运。
这个脚本允许指定一个data-form-action属性,它将在所有浏览器中作为HTML5 formaction属性(以一种不引人注目的方式):
$(document).on('click', '[type="submit"][data-form-action]', function(event) {
var $this = $(this),
var formAction = $this.attr('data-form-action'),
$form = $($this.closest('form'));
$form.attr('action', formAction);
});
包含按钮的表单将被发送到data-form-action属性中指定的URL:
<button type="submit" data-form-action="different/url">Submit</button>
这需要jQuery 1.7。对于以前的版本,您应该使用live()而不是on()。