C# Chart class not rendering in view

Question

I'm trying to test charting functionality in my C#.NET 4.0 MVC application following this guide.

Here is my View code:

@{
    Layout = null;
}

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


}

When I run the application it just gives me a bunch of ASCII characters:

JFIF``C $.' ",#(7),01444'9=82<.342C 2!!22222222222222222222222222222222222222222222222222X" }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B#3R$4&'()56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz? ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( +LL1VFwc@uQUn:j(((((((((((((((((((((((((((((((((((( P';ա2nd4x Iv {ͿKmv#Y@P;kݖ ^N7f+ =huE@co qG(ܒI)V0AA}{6ND!\CW 3Q 3Q}vN񦥭Z4 bcy?xZfFtfoNjG/CxZf9k2΂hhEş" c-Fg:CjҨV NH1yEsl?}"AEsl?}"AEsl?}"

Any thoughts on how to troubleshoot/proceed? I'm just looking for a simple bar graph solution. Thanks!

Yeah, the code is good which is why I'm puzzled as to why it's spewing out the ASCII garbage instead of rendering the simple graph? At a loss — Mason
– Mason, Commented Mar 17, 2016 at 21:30
Note that the tutorial you're following, which works perfectly well, is for a Web Site project template, not MVC. Each project template adds their own specific assemblies, folder/file structure, etc, so don't expect things to be fully interchangeable. — jsanalytics
– jsanalytics, Commented Mar 18, 2016 at 12:51

user3246175 · Accepted Answer · 2016-07-27 19:16:28Z

OK, I have the same problem, and I solve using another logic, and works fine:

I remove de partial view (cshtml) and change the signature on Controller to return a Chart type:

        public Chart GetGrafico(int dias, int idDepartamento, int idPgto)
    {
        try
        {
            int idEmpresa = login.GetUsuario(System.Web.HttpContext.Current.User.Identity.Name).IdEmpresa;
            DateTime inicial = DateTime.Today.Date;
            DateTime final = inicial.AddDays(dias);
            var grafico = service.GetGrafico(inicial, final, idEmpresa, idDepartamento, idPgto);

            Chart myChart = new Chart(800, 600)
                .AddTitle("Vencimentos futuros")
                .AddSeries(
                name: "Vencimentos",
                xValue: grafico.Select(x => x.Dia).ToArray(),
                yValues: grafico.Select(x => x.Valor).ToArray()).Write();                 

            return myChart;
        }
        catch (Exception)
        {
            throw;
        }
    }

Then in the Index.cshtml I just add a image tag:

<img id="img" />

<script type="text/javascript">
$('#gerarGrafico').click(function () {
    $('#img').attr('src', '/Erp/Grafico/GetGrafico?dias=30&idDepartamento=0&idPgto=0');
});

So now when a click in the button, the jQuery function just set the attr src of image, it works fine.

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