Range in Xamarin DateTime Range Navigator (SfDateTimeRangeNavigator)

13 May 20212 minutes to read

The left and right thumb of SfDateTimeRangeNavigator are used to indicate the selected range in the large collection of data. Following are the ways you can select a range.

Following code example shows how to configure the selected range using ViewRangeStart and ViewRangeEnd properties of SfDateTimeRangeNavigator.

<rangenavigator:SfDateTimeRangeNavigator x:Name ="dateTime" Minimum="1/1/2015" 
	Maximum="1/1/2017" ViewRangeStart="5/1/2015" ViewRangeEnd="10/1/2016"/>
SfDateTimeRangeNavigator dateTime = new SfDateTimeRangeNavigator(); 

dateTime.ViewRangeStart = new DateTime(2015, 5, 1);

dateTime.ViewRangeEnd = new DateTime(2016, 10, 1);

range_img1

Selected Data

The SelectedData property of SfDateTimeRangeNavigator used to get the underlying data collection of the selected range. You can directly bind this property to other data visualization control to visualize the selected range of data.

Overlay Color

The OverlayColor property of SfDateTimeRangeNavigator is used to customize the color of unselected area in date-time range navigator.

Deferred Update

RangeChanged event will be fired whenever you drag the thumbs. If you are doing some long running tasks in this event handler, then dragging the thumbs will not be smooth. You can delay this event by enabling EnableDeferredUpdate property. If this property is set to true, the RangeChanged event will get fired only when you stop dragging or if the thumb is held for more than 500 milliseconds. If it is false, the range will be updated for every movement of the thumb. However, It is true by default.

The delay of update is 500 milliseconds by default. However, it can be changed using DeferredUpdateDelay property of SfDateTimeRangeNavigator.

<rangenavigator:SfDateTimeRangeNavigator x:Name ="dateTime" Minimum="1/1/2015" 
	Maximum="1/1/2017" EnableDeferredUpdate="False" DeferredUpdateDelay="600" />
SfDateTimeRangeNavigator dateTime = new SfDateTimeRangeNavigator(); 

dateTime.EnableDeferredUpdate = false;

dateTime.DeferredUpdateDelay = 600;

RangeChanged Event

This event is triggered when the selected range of the SfDateTimeRangeNavigator is changed. The argument contains the following information.