Showing System.Web.Helpers.Chart in a partial view from the model

Question

So I was trying out the Chart helpers in the System.Web.Helpers namespace.

according to http://www.asp.net/web-pages/tutorials/data/7-displaying-data-in-a-chart

Answer 1

<div>
    <h2>Some header above a graph</h2>
    <img src="@Url.Action("DrawChart")" />
</div>

and then you could have a controller action:

public ActionResult DrawChart()
{
    MyViewModel model = ...
    return View(model);
}

and a corresponding view that will draw the chart (DrawChart.cshtml):

@model MyViewModel

@{
    // TODO: use the data from the model to draw a chart

    var myChart = new Chart(width: 600, height: 400)
        .AddTitle("Chart Title")
        .AddSeries(
            name: "Employee",
            xValue: new[] {  "Peter", "Andrew", "Julie", "Mary", "Dave" },
            yValues: new[] { "2", "6", "4", "5", "3" })
        .Write();
}

and the rendered result:

---

Answer 2

<div>
<h2>Some header above a graph</h2>
<img src="@Url.Action("DrawChart")" />
</div>

public ActionResult DrawChart()
{
MyViewModel model = ...
return View(model);  

}

!!! To send the Model parameter to DrawChart

Change to

<div>
    <h2>Some header above a graph</h2>
    <img src="@Url.Action("DrawChart",Model)" />
</div>

public ActionResult DrawChart(MyViewModel _MyViewModel )
{
    MyViewModel model = MyViewModel ;
    return View(model);
}

MyViewModel is Null

Seek advice from those who know.