winforms 如何在WinForm C#中绘制线(点)图

ghhaqwfi 于 11个月前发布在 C#

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我试图使一个winform应用程序，从数据库中提取数据加载到一个数据网格视图。enter image description here我想重量（公斤）作为X轴，和净重作为Y轴;并使用图表类型“线”。它应该创建列表红点（X，Y），图表将绘制它们之间的线。但图表是像柱形图绘制，我不知道如何修复它。我
下面是我绘制图表的方法代码

public Chart ConvertToChart(DataGridView dataGridView)
{
    
        // Create a new series for the chart
        Series series = new Series();
        series.Name = "Data Series";
        series.ChartType = SeriesChartType.Column;

        // Add data points to the series
        foreach (DataGridViewRow row in dataGridView.Rows)
        {
            // Get the data from the DataGridView
            int xValue = Convert.ToInt32(row.Cells[3].Value);
            int yValue = Convert.ToInt32(row.Cells[4].Value);

            // Add the data point to the series
            series.Points.AddXY(xValue, yValue);
        }

        // Add the series to the chart
        chart1.Series.Add(series);

        // Return the chart
        return chart1;
    
    }

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我希望它会是这样的：enter image description here任何帮助是非常appreaciated.谢谢！

winforms

来源：https://stackoverflow.com/questions/77516165/how-to-draw-linepoint-chart-in-winform-c-sharp

1条答案

按热度按时间

g0czyy6m1#

将图表控件从Visual Studio添加到Windows窗体应用程序（拖放控件）
注意：图表控件在VS 2022中已被弃用。
参考下面的代码：

using System;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;

namespace ChartExample
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            InitializeChart();
        }

        private void InitializeChart()
        {
            // Setting up chart parameters
            ChartArea chartArea = new ChartArea();
            chartArea.AxisX.Title = "X Axis";
            chartArea.AxisY.Title = "Y Axis";
            chart1.ChartAreas.Add(chartArea);

           
            Series series = new Series();
            series.ChartType = SeriesChartType.Line; // or SeriesChartType.Point
            series.Name = "MySeries";

            // Add some data points 
            series.Points.AddXY(1, 10);
            series.Points.AddXY(2, 20);
            series.Points.AddXY(3, 15);
            series.Points.AddXY(4, 25);

            // Add the series to the chart
            chart1.Series.Add(series);
        }
    }
}

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winforms 如何在WinForm C#中绘制线(点)图

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