On Tuesday, February 25, 2014 3:50:43 PM UTC, Missy wrote:
>
> I am getting the "failed to draw" error on the client-end using the
> following code below:
>
> <script type="text/javascript">
> function drawVisualization(dataValues, chartTitle, columnNames,
> categoryCaption) {
> if (dataValues.length < 1)
> return;
>
> var data = new google.visualization.DataTable();
> data.addColumn('string', columnNames.split(',')[0]);
> data.addColumn('number', columnNames.split(',')[1]);
> data.addColumn('string', columnNames.split(',')[2]);
>
>
> for (var i = 0; i < dataValues.length; i++) {
> data.addRow([dataValues[i].ColumnName,
> dataValues[i].Value, dataValues[i].Type]);
> }
>
> // Define a category picker control for the Gender column
> var categoryPicker = new google.visualization.ControlWrapper({
> 'controlType': 'CategoryFilter',
> 'containerId': 'CategoryPickerContainer',
> 'options': {
> 'filterColumnLabel': columnNames.split(',')[2],
> 'ui': {
> 'labelStacking': 'horizontal',
> 'allowTyping': false,
> 'allowMultiple': false,
> 'caption': categoryCaption,
> 'label': columnNames.split(',')[2]
> }
> }
> });
>
> // Define a Pie chart
> var pie = new google.visualization.ChartWrapper({
> 'chartType': 'LineChart',
> 'containerId': 'PieChartContainer',
> 'options': {
> 'width': 950,
> 'height': 450,
> 'legend': 'right',
> 'title': chartTitle,
> 'chartArea': { 'left': 100, 'top': 100, 'right': 0,
> 'bottom': 100 },
> 'pieSliceText': 'label',
> 'tooltip': { 'text': 'percentage' }
> },
> 'view': { 'columns': [0, 1] }
> });
>
> new
> google.visualization.Dashboard(document.getElementById('PieChartExample')).bind([categoryPicker],[pie]).draw(data);
> }
>
>
> </script>
> <div id="PieChartExample">
> <table>
> <tr style='vertical-align: top'>
> <td>
> <div id="CategoryPickerContainer"></div>
> <div id="control1"></div>
> <div id="control2"></div>
> </td>
> </tr>
> <tr>
> <td >
> <div style="float: left;"
> id="PieChartContainer"></div>
> </td>
>
> </tr>
> </table>
> </div>
>
> Code behind - default.aspx.cs
> protected void Page_Load(object sender, EventArgs e)
> {
> if (!IsPostBack)
> {
>
> JavaScriptSerializer jss = new JavaScriptSerializer();
> ClientScript.RegisterStartupScript(this.GetType(),
> "TestInitPageScript",
> //string.Format("<script
> type=\"text/javascript\">google.load('visualization','1.0',{{'packages':['corechart','controls']}});google.setOnLoadCallback(function(){'drawVisualization'({0},'{1}','{2}');});</script>",
> string.Format("<script
> type=\"text/javascript\">google.load('visualization','1.0',{{'packages':['corechart','controls']}});google.setOnLoadCallback(function(){{drawVisualization({0},'{1}','{2}');}});</script>",
> jss.Serialize(GetData()),
> "Text Example",
> "Name,type,"));
>
>
> }
> }
>
> [WebMethod]
> public static List<Data> GetData()
> {
> SqlConnection conn = new SqlConnection("######");
>
>
> DataSet ds = new DataSet();
> DataTable dt = new DataTable();
> conn.Open();
> string cmdstr = "select top 100 Name, [Decimal price],Cover from
> [dbo].[database]";
> SqlCommand cmd = new SqlCommand(cmdstr, conn);
> SqlDataAdapter adp = new SqlDataAdapter(cmd);
> adp.Fill(ds);
> dt = ds.Tables[0];
> List<Data> dataList = new List<Data>();
> string cat="";
> float val=0;
> string typ = "";
>
> foreach (DataRow dr in dt.Rows)
> {
> try
> {
> cat = dr[0].ToString();
>
> val = Convert.ToInt32(dr[1]);
>
> typ = dr[2].ToString();
>
> }
> catch
> {
> }
> dataList.Add(new Data(cat, val, typ));
> }
> return dataList;
> }
>
> Any help would be very much appreciated. Thanks
>
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