DateTime Axis in Blazor Charts Component

4 Aug 20219 minutes to read

DateTime Axis

The DateTime axis uses a date time scale and displays date time values as axis labels in the format specified.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime">
    </ChartPrimaryXAxis>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" Type="ChartSeriesType.Line">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set;}
        public double YValue {get; set;}
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2005, 01, 01), YValue = 21 },
		new ChartData { XValue = new DateTime(2006, 01, 01), YValue = 24 },
		new ChartData { XValue = new DateTime(2007, 01, 01), YValue = 36 },
		new ChartData { XValue = new DateTime(2008, 01, 01), YValue = 38 },
	};
}

DateTime Axis

DateTime Category Axis

The DateTime Category axis is used to display date-time values with non-linear intervals. For example, the business days alone can be represented in a week here.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis Format="d MMM yyyy" ValueType="Syncfusion.Blazor.Charts.ValueType.DateTimeCategory">
    </ChartPrimaryXAxis>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" Type="ChartSeriesType.Line">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2005, 01, 01), YValue = 21 },
		new ChartData { XValue = new DateTime(2006, 01, 01), YValue = 24 },
		new ChartData { XValue = new DateTime(2007, 01, 01), YValue = 36 },
		new ChartData { XValue = new DateTime(2008, 01, 01), YValue = 38 },
	};
}

DateTime Category Axis

Range

The axis range will be calculated automatically based on the provided data; however, the axis range can also be customized using Minimum, Maximum, and Interval properties.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis  IntervalType="IntervalType.Years" ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime">
    </ChartPrimaryXAxis>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" Type="ChartSeriesType.Line">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2016, 4, 1), YValue = 21 },
		new ChartData { XValue = new DateTime(2016, 5, 1), YValue = 24 },
		new ChartData { XValue = new DateTime(2016, 6, 1), YValue = 36 },
		new ChartData { XValue = new DateTime(2016, 7, 1), YValue = 38 },
		new ChartData { XValue = new DateTime(2016, 8, 1), YValue = 46 },
		new ChartData { XValue = new DateTime(2016, 9, 1), YValue = 28 },
		new ChartData { XValue = new DateTime(2016, 10, 1), YValue = 68 }
	};
}

DateTime Axis - Range

Interval Customization

The Interval and IntervalType properties of the Axis can be used to customize date time intervals. When interval is set to 2 and interval type is set to Years, it considers 2 years to be the interval. The following interval types are supported by the DateTime axis:

  • Auto
  • Years
  • Months
  • Days
  • Hours
  • Minutes
  • Seconds
@using Syncfusion.Blazor.Charts

<SfChart>
    
	<ChartPrimaryXAxis Interval="2" IntervalType="IntervalType.Months" ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime">
    </ChartPrimaryXAxis>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" Type="ChartSeriesType.Line">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2016, 4, 1), YValue = 21 },
		new ChartData { XValue = new DateTime(2016, 5, 1), YValue = 24 },
		new ChartData { XValue = new DateTime(2016, 6, 1), YValue = 36 },
		new ChartData { XValue = new DateTime(2016, 7, 1), YValue = 38 },
		new ChartData { XValue = new DateTime(2016, 8, 1), YValue = 46 },
		new ChartData { XValue = new DateTime(2016, 9, 1), YValue = 28 },
		new ChartData { XValue = new DateTime(2016, 10, 1), YValue = 68 }
	};
}

DateTime Axis with interval customized

Applying padding to the Range

The RangePadding property can be used to apply padding to the minimum and maximum extremes of range. The following types of padding are supported by the DateTime axis:

  • None
  • Round
  • Additional

DateTime - None

When the RangePadding is set to None, the minimum and maximum of the axis is based on the data.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis RangePadding="ChartRangePadding.None" ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime">
    </ChartPrimaryXAxis>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" Type="ChartSeriesType.Line">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2005, 01, 01), YValue = 21 },
		new ChartData { XValue = new DateTime(2006, 01, 01), YValue = 24 },
		new ChartData { XValue = new DateTime(2007, 01, 01), YValue = 36 },
		new ChartData { XValue = new DateTime(2008, 01, 01), YValue = 38 },
    };
}

Range Padding - None

DateTime - Round

When the RangePadding property is set to Round, the minimum and maximum will be rounded to the nearest possible value divisible by interval.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis RangePadding="ChartRangePadding.Round" ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime">
    </ChartPrimaryXAxis>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" Type="ChartSeriesType.Line">
        </ChartSeries>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2005, 01, 01), YValue = 21 },
		new ChartData { XValue = new DateTime(2006, 01, 01), YValue = 24 },
		new ChartData { XValue = new DateTime(2007, 01, 01), YValue = 36 },
		new ChartData { XValue = new DateTime(2008, 01, 01), YValue = 38 },
    };
}

DateTime - Additional

When the RangePadding property is set to Additional, the interval of an axis will be padded to the minimum and maximum of the axis.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis RangePadding="ChartRangePadding.Additional" 
                       ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime"/>

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="@nameof(ChartData.XValue)" YName=@nameof(ChartData.YValue)/>
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2005, 01, 01), YValue = 21 },
		new ChartData { XValue = new DateTime(2006, 01, 01), YValue = 24 },
		new ChartData { XValue = new DateTime(2007, 01, 01), YValue = 36 },
		new ChartData { XValue = new DateTime(2008, 01, 01), YValue = 38 },
    };
}

Label Format

Using the LabelFormat property on an axis, it is possible to format and parse the date to all globalize formats.

@using Syncfusion.Blazor.Charts

<SfChart>
    <ChartPrimaryXAxis LabelFormat="d" ValueType="Syncfusion.Blazor.Charts.ValueType.DateTime"/>
    

    <ChartSeriesCollection>
        <ChartSeries DataSource="@WeatherReports" XName="XValue" YName="YValue" />        
    </ChartSeriesCollection>
</SfChart>

@code{
    public class ChartData
    {
        public DateTime XValue { get; set; }
        public double YValue { get; set; }
    }
	
    public List<ChartData> WeatherReports = new List<ChartData>
	{
		new ChartData { XValue = new DateTime(2005, 01, 01), YValue = 21 },
		new ChartData { XValue = new DateTime(2006, 01, 01), YValue = 24 },
		new ChartData { XValue = new DateTime(2007, 01, 01), YValue = 36 },
		new ChartData { XValue = new DateTime(2008, 01, 01), YValue = 38 },
    };
}

DateTime axis with label format

The table below shows the results of applying various popular 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 day format.
new Date(2000, 03, 10) yMd 04/10/2000 The date is displayed in 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.

Refer to our Blazor Charts feature tour page for its groundbreaking feature representations and also explore our Blazor Chart Example to know various chart types and how to represent time-dependent data, showing trends at equal intervals.

See Also