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
Eilon建议你可以这样做:
If you have more than one button you can distinguish between them by giving each button a name: <input type="submit" name="SaveButton" value="Save data" /> <input type="submit" name="CancelButton" value="Cancel and go back to main page" /> In your controller action method you can add parameters named after the HTML input tag names: public ActionResult DoSomeStuff(string saveButton, string cancelButton, ... other parameters ...) { ... } If any value gets posted to one of those parameters, that means that button was the one that got clicked. The web browser will only post a value for the one button that got clicked. All other values will be null. if (saveButton != null) { /* do save logic */ } if (cancelButton != null) { /* do cancel logic */ }
我喜欢这个方法,因为它不依赖于提交按钮的值属性,这个属性比分配的名称更有可能改变,并且不需要启用javascript
看到的: http://forums.asp.net/p/1369617/2865166.aspx#2865166
其他回答
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。
以下是最适合我的方法:
<input type="submit" value="Delete" name="onDelete" />
<input type="submit" value="Save" name="onSave" />
public ActionResult Practice(MyModel model, string onSave, string onDelete)
{
if (onDelete != null)
{
// Delete the object
...
return EmptyResult();
}
// Save the object
...
return EmptyResult();
}
Modified version of HttpParamActionAttribute method but with a bug fix for not causing an error on expired/invalid session postbacks. To see if this is a problem with your current site, open the your form in a window and just before you go to click Save or Publish, open a duplicate window, and logout. Now go back to your first window and try to submit your form using either button. For me I got an error so this change solves that problem for me. I omit a bunch of stuff for the sake of brevity but you should get the idea. The key parts are the inclusion of ActionName on the attribute and making sure the name passed in is the name of the View that shows the form
属性类
[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class HttpParamActionAttribute : ActionNameSelectorAttribute
{
private readonly string actionName;
public HttpParamActionAttribute(string actionName)
{
this.actionName = actionName;
}
public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo)
{
if (actionName.Equals(methodInfo.Name, StringComparison.InvariantCultureIgnoreCase))
return true;
if (!actionName.Equals(this.actionName, StringComparison.InvariantCultureIgnoreCase))
return false;
var request = controllerContext.RequestContext.HttpContext.Request;
return request[methodInfo.Name] != null;
}
}
控制器
[Authorize(Roles="CanAddContent")]
public ActionResult CreateContent(Guid contentOwnerId)
{
var viewModel = new ContentViewModel
{
ContentOwnerId = contentOwnerId
//populate rest of view model
}
return View("CreateContent", viewModel);
}
[Authorize(Roles="CanAddContent"), HttpPost, HttpParamAction("CreateContent"), ValidateAntiForgeryToken]
public ActionResult SaveDraft(ContentFormModel model)
{
//Save as draft
return RedirectToAction("CreateContent");
}
[Authorize(Roles="CanAddContent"), HttpPost, HttpParamAction("CreateContent"), ValidateAntiForgeryToken]
public ActionResult Publish(ContentFormModel model)
{
//publish content
return RedirectToAction("CreateContent");
}
View
@using (Ajax.BeginForm("CreateContent", "MyController", new { contentOwnerId = Model.ContentOwnerId }))
{
@Html.AntiForgeryToken()
@Html.HiddenFor(x => x.ContentOwnerId)
<!-- Rest of your form controls -->
<input name="SaveDraft" type="submit" value="SaveDraft" />
<input name="Publish" type="submit" value="Publish" />
}
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"…
如果您的浏览器支持输入按钮的属性格式操作(IE 10+,不确定其他浏览器),那么以下应该工作:
@using (Html.BeginForm()){
//put form inputs here
<input id="sendBtn" value="Send" type="submit" formaction="@Url.Action("Name Of Send Action")" />
<input id="cancelBtn" value="Cancel" type="submit" formaction="@Url.Action("Name of Cancel Action") />
}