Tooltip in Blazor Range Selector Component

1 Oct 20216 minutes to read

The tooltip for sliders are supported by the Range Selector. Sliders are used in the Range Selector to select data from a specific range. The tooltip displays the selected start and end values.

Enable tooltip

The tooltip can be used to display information about the selected data and it is enabled by setting the Enable property to true.

@using Syncfusion.Blazor.Charts

<SfRangeNavigator Value="@Value" ValueType="RangeValueType.DateTime">
    <RangeNavigatorRangeTooltipSettings Enable="true" DisplayMode="TooltipDisplayMode.Always">
    </RangeNavigatorRangeTooltipSettings>
    <RangeNavigatorSeriesCollection>
        <RangeNavigatorSeries DataSource="@StockInfo" XName="Date" Type="RangeNavigatorType.Area" YName="Close">
        </RangeNavigatorSeries>
    </RangeNavigatorSeriesCollection>
</SfRangeNavigator>

@code {

    public class StockDetails
    {
        public DateTime Date { get; set; }
        public double Close { get; set; }
    }

    public DateTime[] Value = new DateTime[] { new DateTime(2006, 01, 01), new DateTime(2008, 01, 01) };

    public List<StockDetails> StockInfo = new List<StockDetails>
    {
        new StockDetails { Date = new DateTime(2005, 01, 01), Close = 21 },
        new StockDetails { Date = new DateTime(2006, 01, 01), Close = 24 },
        new StockDetails { Date = new DateTime(2007, 01, 01), Close = 36 },
        new StockDetails { Date = new DateTime(2008, 01, 01), Close = 38 },
        new StockDetails { Date = new DateTime(2009, 01, 01), Close = 54 },
        new StockDetails { Date = new DateTime(2010, 01, 01), Close = 57 },
        new StockDetails { Date = new DateTime(2011, 01, 01), Close = 70 }
    };
}

Blazor RangeNavigator displays Tooltip

Tooltip Customization

The tooltip can be customized using the following properties:

@using Syncfusion.Blazor.Charts

<SfRangeNavigator Value="@Value" ValueType="RangeValueType.DateTime">
    <RangeNavigatorRangeTooltipSettings Enable="true" Fill="red" Opacity="0.6" DisplayMode="TooltipDisplayMode.Always">
        <RangeNavigatorTooltipTextStyle Color="blue" Size="12px" FontStyle="italic"></RangeNavigatorTooltipTextStyle>
    </RangeNavigatorRangeTooltipSettings>
    <RangeNavigatorSeriesCollection>
        <RangeNavigatorSeries DataSource="@StockInfo" XName="Date" Type="RangeNavigatorType.Area" YName="Close">
        </RangeNavigatorSeries>
    </RangeNavigatorSeriesCollection>
</SfRangeNavigator>

@code {

    public class StockDetails
    {
        public DateTime Date { get; set; }
        public double Close { get; set; }
    }

    public DateTime[] Value = new DateTime[] { new DateTime(2006, 01, 01), new DateTime(2008, 01, 01) };

    public List<StockDetails> StockInfo = new List<StockDetails>
    {
        new StockDetails { Date = new DateTime(2005, 01, 01), Close = 21 },
        new StockDetails { Date = new DateTime(2006, 01, 01), Close = 24 },
        new StockDetails { Date = new DateTime(2007, 01, 01), Close = 36 },
        new StockDetails { Date = new DateTime(2008, 01, 01), Close = 38 },
        new StockDetails { Date = new DateTime(2009, 01, 01), Close = 54 },
        new StockDetails { Date = new DateTime(2010, 01, 01), Close = 57 },
        new StockDetails { Date = new DateTime(2011, 01, 01), Close = 70 }
    };
}

Blazor RangeNavigator with Custom Tooltip

Label Format

The LabelFormat property in the tooltip is used to format and parse the date to all globalize formats.

@using Syncfusion.Blazor.Charts

<SfRangeNavigator Value="@Value" ValueType="RangeValueType.DateTime">
    <RangeNavigatorRangeTooltipSettings Enable="true" DisplayMode="TooltipDisplayMode.Always" Format="y/M/d">
    </RangeNavigatorRangeTooltipSettings>
    <RangeNavigatorSeriesCollection>
        <RangeNavigatorSeries DataSource="@StockInfo" XName="Date" Type="RangeNavigatorType.Area" YName="Close">
        </RangeNavigatorSeries>
    </RangeNavigatorSeriesCollection>
</SfRangeNavigator>

@code {

    public class StockDetails
    {
        public DateTime Date { get; set; }
        public double Close { get; set; }
    }

    public DateTime[] Value = new DateTime[] { new DateTime(2006, 01, 01), new DateTime(2008, 01, 01) };

    public List<StockDetails> StockInfo = new List<StockDetails>
    {
        new StockDetails { Date = new DateTime(2005, 01, 01), Close = 21 },
        new StockDetails { Date = new DateTime(2006, 01, 01), Close = 24 },
        new StockDetails { Date = new DateTime(2007, 01, 01), Close = 36 },
        new StockDetails { Date = new DateTime(2008, 01, 01), Close = 38 },
        new StockDetails { Date = new DateTime(2009, 01, 01), Close = 54 },
        new StockDetails { Date = new DateTime(2010, 01, 01), Close = 57 },
        new StockDetails { Date = new DateTime(2011, 01, 01), Close = 70 }
    };
}

Changing Tooltip Format in Blazor RangeNavigator

The following table shows the results of applying some common date and time formats to the LabelFormat property.

Label Value Label Format Property Value Result Description
new Date(2000, 03, 10) EEEE Monday The date is displayed in the day format.
new Date(2000, 03, 10) yMd 04/10/2000 The date is displayed in the month/date/year format.
new Date(2000, 03, 10) MMM Apr The shorthand month for the date is displayed.
new Date(2000, 03, 10) hm 12:00 AM Time of the date value is displayed as label.
new Date(2000, 03, 10) hms 12:00:00 AM The label is displayed in hours:minutes:seconds format.