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
视图中的代码是:
<script language="javascript" type="text/javascript">
function SubmeterForm(id)
{
if (id=='btnOk')
document.forms[0].submit(id);
else
document.forms[1].submit(id);
}
</script>
<% Html.BeginForm("ObterNomeBotaoClicado/1", "Teste01", FormMethod.Post); %>
<input id="btnOk" type="button" value="Ok" onclick="javascript:SubmeterForm('btnOk')" />
<% Html.EndForm(); %>
<% Html.BeginForm("ObterNomeBotaoClicado/2", "Teste01", FormMethod.Post); %>
<input id="btnCancelar" type="button" value="Cancelar" onclick="javascript:SubmeterForm('btnCancelar')" />
<% Html.EndForm(); %>
在Controller中,代码是:
public ActionResult ObterNomeBotaoClicado(string id)
{
if (id=="1")
btnOkFunction(...);
else
btnCancelarFunction(...);
return View();
}
其他回答
这是我使用的技巧,但我在这里还没有看到。链接(由Saajid Ismail发布 )启发这个解决方案的是http://weblogs.asp.net/dfindley/archive/2009/05/31/asp-net-mvc-multiple-buttons-in-the-same-form.aspx)。它适应Dylan Beattie的答案做本地化没有任何问题。
在视图中:
<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<button name="button" value="send"><%: Resources.Messages.Send %></button>
<button name="button" value="cancel"><%: Resources.Messages.Cancel %></button>
<% Html.EndForm(); %>
在控制器中:
public class MyController : Controller
{
public ActionResult MyAction(string button)
{
switch(button)
{
case "send":
this.DoSend();
break;
case "cancel":
this.DoCancel();
break;
}
}
}
当使用ajax表单时,我们可以使用ActionLinks与POST HttpMethod和 在AjaxOptions中序列化表单。OnBegin事件。
假设你有两个动作,InsertAction和UpdateAction:
<form>
@Html.Hidden("SomeField", "SomeValue")
@Ajax.ActionLink(
"Insert",
"InsertAction",
null,
new AjaxOptions {
OnBegin = "OnBegin",
UpdateTargetId = "yourDiv",
HttpMethod = "POST" })
@Ajax.ActionLink(
"Update",
"UpdateAction",
null,
new AjaxOptions {
OnBegin = "OnBegin",
UpdateTargetId = "yourDiv",
HttpMethod = "POST" })
</form>
Javascript
function OnBegin(xhr, settings) {
settings.data = $("form").serialize();
}
这是我发现的最好的方法:
http://iwayneo.blogspot.co.uk/2013/10/aspnet-mvc-action-selector-with-list.html
代码如下:
/// <summary>
/// ActionMethodSelector to enable submit buttons to execute specific action methods.
/// </summary>
public class AcceptParameterAttribute : ActionMethodSelectorAttribute
{
/// <summary>
/// Gets or sets the value to use to inject the index into
/// </summary>
public string TargetArgument { get; set; }
/// <summary>
/// Gets or sets the value to use in submit button to identify which method to select. This must be unique in each controller.
/// </summary>
public string Action { get; set; }
/// <summary>
/// Gets or sets the regular expression to match the action.
/// </summary>
public string ActionRegex { get; set; }
/// <summary>
/// Determines whether the action method selection is valid for the specified controller context.
/// </summary>
/// <param name="controllerContext">The controller context.</param>
/// <param name="methodInfo">Information about the action method.</param>
/// <returns>true if the action method selection is valid for the specified controller context; otherwise, false.</returns>
public override bool IsValidForRequest(ControllerContext controllerContext, MethodInfo methodInfo)
{
if (controllerContext == null)
{
throw new ArgumentNullException("controllerContext");
}
Func<NameValueCollection> formGetter;
Func<NameValueCollection> queryStringGetter;
ValidationUtility.GetUnvalidatedCollections(HttpContext.Current, out formGetter, out queryStringGetter);
var form = formGetter();
var queryString = queryStringGetter();
var req = form.AllKeys.Any() ? form : queryString;
if (!string.IsNullOrEmpty(this.ActionRegex))
{
foreach (var key in req.AllKeys.Where(k => k.StartsWith(Action, true, System.Threading.Thread.CurrentThread.CurrentCulture)))
{
if (key.Contains(":"))
{
if (key.Split(':').Count() == this.ActionRegex.Split(':').Count())
{
bool match = false;
for (int i = 0; i < key.Split(':').Count(); i++)
{
if (Regex.IsMatch(key.Split(':')[0], this.ActionRegex.Split(':')[0]))
{
match = true;
}
else
{
match = false;
break;
}
}
if (match)
{
return !string.IsNullOrEmpty(req[key]);
}
}
}
else
{
if (Regex.IsMatch(key, this.Action + this.ActionRegex))
{
return !string.IsNullOrEmpty(req[key]);
}
}
}
return false;
}
else
{
return req.AllKeys.Contains(this.Action);
}
}
}
享受一个没有代码气味的多提交按钮的未来。
谢谢你!
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。
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());
}