Date and Time

Get or set field value

Get or set the Date and Time field value.

//return field value as a string
fd.field('Field1').value;

//set the field value to the current date
fd.field('Field1').value = new Date();

//set the field value to the specific date and time
fd.field('Field1').value = new Date(2021, 11, 24, 10, 33, 30, 0);

Handle change event

Execute a function when a field value has been changed:

fd.field('Field1').$on('change', function(value) {
    //log changes to browser's console
    console.log('New value: ' + value);
});

Make field required

Make a field required or optional:

//make field required
fd.field('Field1').required = true;

//make field not required
fd.field('Field1').required = false;

Disable field

Make a field non-editable. The field value can still be changed with JavaScript and saved:

//disabled field
fd.field('Field1').disabled = true;

//enable field
fd.field('Field1').disabled = false;

Get HTML element

Access HTML element inside the field in order to modify it, hide it, or do something else.

//access field's control
var htmlField = fd.field('Field1').$el;

//access field's block, which includes title and control
var htmlFullField = fd.field('Field1').$parent.$el;

Hide field

Hide a field from a user. The field value can still be accessed and changed with JavaScript:

//hide field
fd.field('Field1').hidden = true;

//show field
fd.field('Field1').hidden = false;

Configure widget

You can access the widget used by the field. The widget is based on Kendo UI DateTimePicker.

// get the widget
fd.field('Field1').widget

// change the widget's configuration
fd.field('Field1').widgetOptions = {
    min: new Date()
}

widgetOptions is the same as widget.setOptions({}) but can be defined before widget initialization.

Calendar start view

Specify the initial view of the calendar:

fd.field('Field1').widgetOptions = {
    start: 'decade'
}

The following settings are available for the start property:

• ‘month’ - Shows the days of the month.

• ‘year’ - Shows the months of the year.

• ‘decade’ - Shows the years of the decade.

• ‘century’ - Shows the decades from the century.

Calendar navigation depth

Specify the navigation depth. By defining the start and depth properties for the calendar views, you can limit the navigation between views for a user.

//displays the calendar in decade view
//allows a user to select a date in month view
fd.field('Field1').widgetOptions = {
    start: 'decade',
    depth: 'year'
}

The following settings are available for the depth property:

• ‘month’ - Shows the days of the month.

• ‘year’ - Shows the months of the year.

• ‘decade’ - Shows the years of the decade.

• ‘century’ - Shows the decades from the century.

Disable dates in the calendar

An array or a function that will be used to determine which dates to be disabled for selection by the widget.

//disables certain week days in the calendar
fd.field('Field1').widgetOptions = {
    disableDates: ['we', 'th', 'mon'],
}

//disables specific dates
fd.field('Field1').widgetOptions = {
    disableDates: [new Date(2024,6,1), new Date(2024,7,1)],
}

//disables specific dates and certain week days
fd.field('Field1').widgetOptions = {
    disableDates: function(date) {
        //dates to disable
        var dates = [new Date(2024,6,1), new Date(2024,7,1), new Date(2024, 9, 28)];
        if (date) {
            //disable Sunday (0), Saturday (6) and specified dates
            return date.getDay() === 0 || date.getDay() === 6 || dates.map(Number).indexOf(+date) >= 0
        }
    }
}

Date format

Specify the format, which is used to format the value of the Date field:

fd.field('Field1').widgetOptions = {
    format: 'yyyy/MM/dd'
}

For more information on date formats, please refer to Date Formatting.

Calendar date range

Specify the date range that can be selected in the calendar:

var today = new Date();
var minDate = today.setDate(today.getDate()+2);
var maxDate = today.setDate(today.getDate()+30);

fd.field('Field1').widgetOptions = {
    min: new Date(minDate),
    max: new Date(maxDate)
}

Week number

Display a week of the year on the left side of the calendar:

fd.field('Field1').widgetOptions = {
    weekNumber: true
}

Time interval

Specify the interval between the time values in the popup list in minutes:

//set the 20 minutes time interval
fd.field('Field1').widgetOptions = {
    interval: 20
}