The problem is here:
'filterColumnLabel': columnNames.split(',')[2],
Since you are not setting a label for the 3rd column, filterColumnLabel
gets set to an empty string, which the API does not like. Either set a
column label for the 3rd column, or use filterColumnIndex instead:
filterColumnIndex: 2,
Incidentally, you will have a problem in IE with the trailing comma in your
data array:
[{"ColumnName":"ADAGI","Value":59,"Type":"CVR"},{"ColumnName":"AXIUS","Value":32,"Type":"CVR"},{"ColumnName":"BACCH","Value":75,"Type":"CVR"}
,] <-- this comma
IE with throw a fit to rival a petulant 2-year-old child at the sight of
such a comma.
On Tuesday, February 25, 2014 11:29:19 AM UTC-5, Missy wrote:
>
> Thank you for your response back.
>
> Here is my sample of dataValues result:
>
> <script
> type="text/javascript">google.load('visualization','1.0',{'packages':['corechart','controls']});google.setOnLoadCallback(function(){drawVisualization([{"ColumnName":"ADAGI","Value":59,"Type":"CVR"},{"ColumnName":"AXIUS","Value":32,"Type":"CVR"},{"ColumnName":"BACCH","Value":75,"Type":"CVR"},],'Text
>
> Example','Name,type,');});</script><script type='text/javascript'>new
> Sys.WebForms.Menu({ element: 'NavigationMenu', disappearAfter: 500,
> orientation: 'horizontal', tabIndex: 0, disabled: false });</script>
> </form>
>
>
>
>
> On Tuesday, February 25, 2014 4:17:39 PM UTC, asgallant wrote:
>>
>> Can you post an example of what your server-side code outputs
>> for dataValues?
>>
>> On Tuesday, February 25, 2014 10:50:43 AM UTC-5, 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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