Re: get array or datatable from codebehind to google line chart javascript

[asgallant]

You need to convert the array into a DataTable object.  I don't know what the ASP DataTable looks like, so I can't help with that, but if you post the javascript rendered by the server (open the page in a browser and view the source), then I can see what steps you will have to take to make it into a Visualization API DataTable.

On Sunday, November 11, 2012 2:34:22 PM UTC-5, Pradeep Bhat wrote:

So I'm trying to use this javascript with my asp.net website https://google-developers.appspot.com/chart/interactive/docs/gallery/linechart I have an array in codebehind that has my data which i converted to a multidimensional datatable like this. <in codebehind vb> Public Property datat As DataTable For outerIndex As Integer = 0 To 2 Dim newRow As DataRow = table.NewRow() For innerIndex As Integer = 0 To 2 newRow(innerIndex) = Array(outerIndex, innerIndex) Next table.Rows.Add(newRow) Next datat = table <in asp> function drawChart() { var data = <%=datat%> I always get an error datatable not defined.

[Pradeep Bhat]

I'm confused the above code I have is converting it into a datatable.

[asgallant]

I need to see what the javascript looks like to the browser in order to help you.

[Pradeep Bhat]

how do i do that what I have in the code is this exactly

<script type="text/javascript" src="https://www.google.com/jsapi"></script>

    <script type="text/javascript">

        google.load("visualization", "1", {packages:["corechart"]});

        google.setOnLoadCallback(drawcharts);

        function drawcharts(){

            var data = google.visualization.arrayToDataTable([

          [<%=mwtimepublic%>, <%=mwarraypublic%>]

            ]);

      

            var options = {

                title: 'MW Trend'

            };

            var chart = new google.visualization.LineChart(document.getElementById('chart_div'));

            chart.draw(data, options);

        }

    </script>

[asgallant]

Open the page in a browser and view the page source, then paste the javascript here.

[Pradeep Bhat]

Heres a link to everything I have.

http://stackoverflow.com/questions/13366301/using-javascript-google-line-chart-with-vb-and-asp-net

[asgallant]

Unfortunately, that doesn't help - I can't replicate the rendered javascript with your ASP code.  I need to see it the same way that the browser sees it.