Data is loaded the first time when i generate the chart where i have passed
default dates in GetData()..but on button click i am getting the above
error. And the filter is not refreshed.
On Saturday, September 20, 2014 12:20:44 PM UTC+5:30, Shivani Kanakhara
wrote:
>
> var customerData = GetCustomerData("2013/01/01", "2014/12/30");
> var columnsTable = new
> google.visualization.DataTable(customerData);
> var initState = { selectedValues: [] };
>
> //initState.selectedValues.push(columnsTable.getColumnLabel(1));
>
> function GetCustomerData(startDate,endDate) {
> var jsondata = "";
> $.ajax({
> type: "POST",
> url: 'ColumnCharts.aspx/GetCustomerData',
> contentType: "application/json; charset=utf-8",
> dataType: "json",
> data: JSON.stringify({ startDate: startDate, endDate:
> endDate }),
>
> async: false,
> success: function (msg) {
> jsondata = msg.d;
> }
> });
>
>
> return jsondata;
>
> }
>
>
> var columnFilter = new google.visualization.ControlWrapper({
> controlType: 'CategoryFilter',
> containerId: 'colFilter_div',
> dataTable: columnsTable,
> options: {
> filterColumnLabel: 'Name',
> ui: {
> label: 'Customers',
> allowTyping: true,
> allowMultiple: true,
> allowNone: false,
> selectedValuesLayout: 'aside'
> }
> },
> state: initState
> });
>
>
>
> document.getElementById('btnGetTop10Cust').onclick = function
> () {
> var startDate = document.getElementById('TextBox1').value;
> var endDate = document.getElementById('TextBox2').value;
> var customerData = GetCustomerData(startDate, endDate);
>
> columnsTable = new
> google.visualization.DataTable(customerData);
>
> columnFilter.setDataTable(columnsTable);
> columnFilter.draw();
> }
>
>
>
> On Saturday, September 20, 2014 5:18:01 AM UTC+5:30, Andrew Gallant wrote:
>>
>> You need to call filter.setDataTable in the handler:
>>
>> document.getElementbyId('btnGetData').onclick = function()
>> {
>> data = GetData();
>> filter.setDataTable(data);
>> filter.draw();
>> }
>>
>> On Friday, September 19, 2014 12:16:23 PM UTC-4, Shivani Kanakhara wrote:
>>>
>>> I am using a category filter where i pass data using ajax.
>>> Now i want to change the data passed to the filter on button click.
>>> I am doing something like this but it is not working:
>>>
>>>
>>> var data;
>>> document.getElementbyId('btnGetData').onclick = function()
>>> {
>>>
>>> data = GetData()
>>> filter.draw();
>>> }
>>> var filter = new google.visulization.ControlWrapper({
>>> 'controlType': 'CategoryFilter',
>>> 'dataTable':data,
>>> ...
>>> ...
>>> });
>>>
>>>
>>> i guess there is something related to filter.getcontrol() in the ready
>>> event..
>>> but not exactly sure.
>>> How should exactly the code be?
>>>
>>>
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