DxChartStepLineSeries<T, TArgument, TValue> Class

Defines a step line series.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public class DxChartStepLineSeries<T, TArgument, TValue> :
    DxChartLineSeriesBase<T, TArgument, TValue>

Type Parameters

Name	Description
T	The type of data.
TArgument	The type of series arguments.
TValue	The type of series values.

Remarks

The step line series displays data as points joined by horizontal and vertical line segments, looking like steps.

Use the chart’s Data property to specify an IEnumerable<T> data source, and the ArgumentField and ValueField properties to specify data source fields that contain arguments and values for chart points. For a sample data source, refer to our GitHub repository.

Razor

<DxChart Data="@SalesData">
    <DxChartStepLineSeries Name="2017" 
                           Filter="@((SaleInfo s) => s.Date.Year == 2017)"
                           ArgumentField="@(s => s.City)" 
                           ValueField="@(s => s.Amount)"
                           SummaryMethod="Enumerable.Sum" />
    <DxChartStepLineSeries Name="2018" 
                           Filter="@((SaleInfo s) => s.Date.Year == 2018)"
                           ArgumentField="@(s => s.City)" 
                           ValueField="@(s => s.Amount)"
                           SummaryMethod="Enumerable.Sum" />
    <DxChartStepLineSeries Name="2019" 
                           Filter="@((SaleInfo s) => s.Date.Year == 2019)"
                           ArgumentField="@(s => s.City)" 
                           ValueField="@(s => s.Amount)"
                           SummaryMethod="Enumerable.Sum" />
    <DxChartLegend Position="RelativePosition.Outside" HorizontalAlignment="HorizontalAlignment.Right" />
</DxChart>

@code {
    IEnumerable<SaleInfo> SalesData;

    protected override async Task OnInitializedAsync() {
        SalesData = await Sales.GetSalesAsync();
    }
}

SaleInfo

using System;

public class SaleInfo {
    public int OrderId { get; set; }
    public string Region { get; set; }
    public string Country { get; set; }
    public string City { get; set; }
    public int Amount { get; set; }
    public DateTime Date { get; set; }
}

Sales

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

public class Sales {
    static IList<SaleInfo> dataSource;
    static Sales() {
        CreateDataSource();
    }

    public static Task<IQueryable<SaleInfo>> GetSalesAsync() {
        return Task.FromResult(dataSource.AsQueryable());
    }

    static void CreateDataSource() {
        dataSource = new List<SaleInfo> {
        new SaleInfo {
                OrderId = 10248,
                Region = "North America",
                Country = "United States",
                City = "New York",
                Amount = 1740,
                Date = DateTime.Parse("2017/01/06")
            },
            new SaleInfo {
                OrderId = 10249,
                Region = "North America",
                Country = "United States",
                City = "Los Angeles",
                Amount = 850,
                Date = DateTime.Parse("2017/01/13")
            },
            new SaleInfo {
                OrderId = 10250,
                Region = "North America",
                Country = "United States",
                City = "Denver",
                Amount = 2235,
                Date = DateTime.Parse("2017/01/07")
            },
            new SaleInfo {
                OrderId = 10251,
                Region = "North America",
                Country = "Canada",
                City = "Vancouver",
                Amount = 1965,
                Date = DateTime.Parse("2017/01/03")
            },
            new SaleInfo {
                OrderId = 10252,
                Region = "North America",
                Country = "Canada",
                City = "Edmonton",
                Amount = 880,
                Date = DateTime.Parse("2017/01/10")
            },
            new SaleInfo {
                OrderId = 10253,
                Region = "South America",
                Country = "Brazil",
                City = "Rio de Janeiro",
                Amount = 5260,
                Date = DateTime.Parse("2017/01/17")
            },
            new SaleInfo {
                OrderId = 10254,
                Region = "South America",
                Country = "Argentina",
                City = "Buenos Aires",
                Amount = 2790,
                Date = DateTime.Parse("2017/01/21")
            },
            new SaleInfo {
                OrderId = 10255,
                Region = "South America",
                Country = "Paraguay",
                City = "Asuncion",
                Amount = 3140,
                Date = DateTime.Parse("2017/01/01")
            },
            new SaleInfo {
                OrderId = 10256,
                Region = "Europe",
                Country = "United Kingdom",
                City = "London",
                Amount = 6175,
                Date = DateTime.Parse("2017/01/24")
            },
            new SaleInfo {
                OrderId = 10257,
                Region = "Europe",
                Country = "Germany",
                City = "Berlin",
                Amount = 4575,
                Date = DateTime.Parse("2017/01/11")
            },
            // ...
    };
    }
}

Run Demo: Charts - Line Series

Implements

IComponent

IHandleEvent

IHandleAfterRender

IDisposable

IChartSeries

IChartSeriesBase

Inheritance

Object

ComponentBase

DxSettingsComponent<DevExpress.Blazor.Internal.IXYChartSeriesModel>

DxComplexSettingsComponent<DxChartSeries, DevExpress.Blazor.Internal.IXYChartSeriesModel>

DxChartSeries

DxChartXYSeries<T, TArgument, TValue, TValue>

DxChartLineSeriesBase<T, TArgument, TValue>

DxChartStepLineSeries<T, TArgument, TValue>