将变量从VB.Net传递到Javascript？

Question

I have some charts that are created client-side using Javascript. I would like them to use data queried and calculated server-side in my .net codebehind.

Each chart only needs passed 2 numbers, and I suppose a third variable (its name).

This is proving harder than I expected as I haven't found a working answer by googling?

I know I could create some hidden values on the page, but since the chart drawing script is in the head of the document surely it would try to create the charts before reading these values

Answer 1

If you are using ASP.NET MVC and Razor, you could use the following method
1. Calculate the needed values for the charts in code behind and assign it to model properties.
2. Put Razor code to render chart variables above the chart drawing script.

<!-- Render chart variables -->   
<script type="text/javascript">   
    var chartVariable1 = @Html.Raw(@Model.ChartVariable1);  
</script>
<!-- Chart drawing script -->