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V25.1
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    RangeSelectorValueChangedEventArgs Class

    Contains data for the ValueChanged event.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    #Declaration

    C#
    public class RangeSelectorValueChangedEventArgs :
        EventArgs

    #Remarks

    Handle the ValueChanged event to respond to selected range changes. In the event handler, you can use CurrentRange and PreviousRange argument properties to obtain information about current and previous range values, respectively.

    Use the DxRangeSelector.ValueChangeMode property to specify when the component raises the event (OnHandleRelease and OnHandleMove options are available).

    The following code snippet sets the value change mode to OnHandleMove, obtains values of the current range in a ValueChanged event handler, and displays the number of selected days:

    Range Selector - Value Change Mode

    Razor
    <span><b>@DaysCount days are selected</b></span>
    <DxRangeSelector Width="1100px"
                     Height="200px"
                     SelectedRangeStartValue="@(new DateTime(2024, 2, 1))"
                     SelectedRangeEndValue="@(new DateTime(2024, 2, 14))"
                     ValueChanged="@OnValueChanged"
                     ValueChangeMode="RangeSelectorValueChangeMode.OnHandleMove">
        <DxRangeSelectorScale StartValue="@(new DateTime(2024, 1, 1))"
                              EndValue="@(new DateTime(2024, 6, 1))"
                              TickInterval="ChartAxisInterval.Week"
                              MinorTickInterval="ChartAxisInterval.Day"
                              MinRange="ChartAxisInterval.Week"
                              MaxRange="ChartAxisInterval.Month"
                              ValueType="ChartAxisDataType.DateTime">
            <DxRangeSelectorScaleMarker>
                <DxRangeSelectorScaleMarkerLabel>
                    <DxTextFormatSettings Type="TextFormat.MonthAndYear" />
                </DxRangeSelectorScaleMarkerLabel>
            </DxRangeSelectorScaleMarker>
        </DxRangeSelectorScale>
        <DxRangeSelectorSliderMarker>
            <DxTextFormatSettings Type="TextFormat.MonthAndDay" />
        </DxRangeSelectorSliderMarker>
    </DxRangeSelector>
    
    @code {
        double DaysCount { get; set; } = 14;
        void OnValueChanged(RangeSelectorValueChangedEventArgs args) {
            var startDate = args.CurrentRange.FirstOrDefault() as DateTime?;
            var endDate = args.CurrentRange.LastOrDefault() as DateTime?;
            if (startDate != null && endDate != null)
                DaysCount = (endDate - startDate).Value.TotalDays;
        }
    }
    

    #Inheritance

    Object
    EventArgs
    RangeSelectorValueChangedEventArgs
    See Also