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Custom DateTime Editor looses value when Cascading Listiew is selected

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HCT-CERT
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HCT-CERT asked on 17 Jan 2017, 12:44 PM

Hi,

Could you please help in solving this issue.I have 4 parameters:

-StartDate is a custom datetime picker param

-EndDate is a custom datetime picker param

-Campus is a builtin param bound to an sql datasource with both value and display text.

-Vehicle Numbers is is a builtin param bound to an sql datasource with both value and display text and mutilvalue enabled.This param is cascading from Campus param,so when picking a campus the vehicle numbers gets filtered

 

The problem I am facing is that when I pick a campus, the vehicle numbers are filtered but the start and end date values are lost.I feel the whole parameter area in being refreshed so the values entered are not restored.

.ParameterEditors(pe => pe.DateTimeEditor("createDateTimeEditor"))

 

function createDateTimeEditor(placeholder, options) {
       
        var dateTimePickerElement = $("<input type='text' style='width: 100%;' />");
        dateTimePickerElement.appendTo(placeholder);
      
        var parameter,
              valueChangedCallback = options.parameterChanged,
              dateTimePicker;
 
        function onChange() {
            var val = dateTimePicker.value();                
          
            valueChangedCallback(parameter, val);
        }
 
        return {
            beginEdit: function (param) {
 
                parameter = param;
                 
                $(dateTimePickerElement).kendoDateTimePicker({
                     
                    change: onChange
                });
 
                dateTimePicker = $(dateTimePickerElement).data("kendoDateTimePicker");
            }
        };

Environment:

-ASP.NET MVC 5

.-NET 4.5

-Latest Reporting package

 

Thanks in advance

Madani

 

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Stef
Telerik team
answered on 19 Jan 2017, 03:45 PM
Hello Madani,

The custom parameter editor is not configured to preserve the selected values when the cascading parameters are updating the viewer's Parameters area. Please test the custom editor settings from Report Parameter DateTime Picker Format on UI.


Regards,
Stef
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HCT-CERT
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answered on 22 Jan 2017, 09:39 AM

Thanks Stef, I kept my code as is and edited beginEdit function to get the value from the param and assign it to the widget value property:

beginEdit: function (param) {             
                parameter = param;
                var dt = null;
                try {
                    if (parameter.value) {
                        dt = parameter.value;
                    }
                } catch (e) {
                    dt = null;
                }             
                dateTimePicker = $(dateTimePickerElement).kendoDateTimePicker({
                    change: onChange
                }).data("kendoDateTimePicker");              
                dateTimePicker.value(dt);
            }
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