ASP.NET MVC3调用Controller.PartialView时添加HtmlField preFIX

问题描述

我渲染的局部视图作为Ajax请求的一部分。

I am rendering a partial view as part of an Ajax request.

当我打电话从视图局部视图：

When I call the partial view from a view:

int i=0;
foreach(var rule in Model.Rules) {
    @Html.Partial("ValidationRuleRow", rule, new ViewDataDictionary {
        TemplateInfo = new System.Web.Mvc.TemplateInfo { HtmlFieldPrefix = string.Format("Rules[{0}]", i) } })
    i++;
}

我能够设置HtmlField preFIX允许适当的模型绑定。

I am able to set the HtmlFieldPrefix to allow for proper Model binding.

我希望用户能够通过AJAX添加一个新的ValidationRuleRow动态，如：

I want the user to be able to add a new ValidationRuleRow on the fly via ajax, like:

$.ajax({
    type: "GET",
    url: "/Monitors/NewMonitorValidationRule",
    success: function (data, textStatus, jqXHR) {
        var element = $(data);
        $("#ValidationRuleContainer").append(element);
    }
});

所以，我有我的控制器的操作来获取HTML：

So I have an action in my controller to get the HTML:

public ActionResult NewMonitorValidationRule()
{
    ValidationRule rule = new ValidationRule{Id = TempSurrogateKey.Next};
    var view = PartialView("ValidationRuleRow", rule);
    // CODE TO SET PartialView field prefix
    return view;
}

返回的HTML没有一个preFIX。反正有没有设定一个控制器调用从一个动作PartialView时preFIX？

The returned HTML doesn't have a prefix. Is there anyway to set a prefix when calling a PartialView from an Action in a Controller?

推荐答案

您可以一起作为视图模型的一部分​​传递这样的信息：

You could pass this information along as part of the view model:

public ActionResult NewMonitorValidationRule()
{
    ValidationRule rule = new ValidationRule{Id = TempSurrogateKey.Next};
    // CODE TO SET PartialView field prefix
    rule.MyPrefix = "Rule[153]";
    return PartialView("ValidationRuleRow", rule);
}

和 ValidationRuleRow.cshtml 局部视图使用此视图模型属性来设置preFIX里面：

and inside the partial view ValidationRuleRow.cshtml use this view model property to set the prefix:

@{
    if (!string.IsNullOrEmpty(Model.MyPrefix))
    {
        ViewData.TemplateInfo.HtmlFieldPrefix = Model.MyPrefix;
    }
}

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