如何在MVC 3 PartialView负载执行JavaScript函数 [英] How to execute JavaScript function on PartialView load in MVC 3

问题描述

\\code
public ActionResult mapPartial(DataTable dt)
        {
            string strEvents = "[";
            foreach (DataRow row in dt.Rows)
            {
                strEvents += "[" + row["Lat"].ToString() + ", " + row["Long"].ToString() + ", " + "\"" +
                row["LastName"].ToString() + row["DateOfBirth"].ToString() + "\"" + "],";
            }
            strEvents = strEvents.Remove(strEvents.LastIndexOf(","));
            strEvents += "]";

            ViewBag.locpoints = strEvents;

            return PartialView(dt);
        }

//in the partial view page
<script type="text/javascript">
       function mapInit(Viewbag.locpoints) {

              var arr = $.parseJSON(Viewbag.locpoints);
              //more code which assigns a map to div map below 
       }
</script>

<div id="map" class="map"></div>

我怎么能立即调用JS的函数的局部视图加载时呈现我的地图。在控制器部分方法返回它用作在JS函数参数的字符串。希望这是有道理的。

How can i call the JS function immediately to render my map when the partial view is loaded. The partial method in the controller returns a string which is used as parameter in the JS function. Hope it makes sense.

推荐答案

在你定义它，你只需要调用它。不过，它看起来像要包括在JS函数定义中的MVC Viewbag值。你应该通过这些值，当你调用JS方法：

After you define it, you just call it. However, it looks like you are including the MVC Viewbag values in the JS function definition. You should be passing those values when you call the JS method:

<script type="text/javascript">
       function mapInit(locPoints) {    
              var arr = $.parseJSON(locPoints);
              //more code which assigns a map to div map below 
       }
       mapInit(@(Viewbag.locpoints));
</script>

请注意：这里假设你有jQuery的加载

Note: This assumes you have jQuery loaded.

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