如何使用 C#.Net 在 DataGridView 单元格中 Create/Draw 圆周率图

Question

我的目标是在 DataGridView Cell 中实现 Pi Graph，它将显示销售点系统挂起订单的重命名时间。

当我们在 POS 系统下订单时，它可以是交货单或取货单。交货单和取货单包含完成时间。开发这个场景，其中重命名时间显示在 Pi Graph 中，并且当时间接近完成时间时它会减少。

当当前时间到达重命名时间图表时必须在图表上显示0

Answer 1

Step 1: How to Create Bar Graph in Datagridview Cell

首先我们有参数或值

下单时间
订单完成时间（完成订单所需的时间，例如 120 分钟）。
当前系统时间。

Select DatagridView 表单工具箱和图表。

此 Datagridview 有列：

然后创建一个函数

 private void GenerateGraphOfRemaingTiming()
{

    try
    {

        DateTime moment = DateTime.Now;
        
        chart1.Visible = false;

        chart1.ClientSize = new Size(37, 37);
        Bitmap bmp = new Bitmap(chart1.ClientSize.Width, chart1.ClientSize.Height);
        for (int row = 0; row < dataGridView_RecentOrder.RowCount; row++)
        {
            chart1.Series.Clear();
            chart1.Legends.Clear();
            int Hour = int.Parse(moment.Hour.ToString());
            int Min = int.Parse(moment.Minute.ToString());
            int Sec = int.Parse(moment.Second.ToString());
         
            //Add a new chart-series
            string seriesname = "MySeriesName";
            chart1.Series.Add(seriesname);
            //set the chart-type to "Pie"
            chart1.Series[seriesname].ChartType = SeriesChartType.Pie;

            //Add some datapoints so the series. in this case you can pass the values to this method

            chart1.Series[seriesname].LabelForeColor = Color.White;
            chart1.Series[seriesname].BackSecondaryColor = Color.FromArgb(192, 192, 255);
            
            string OrderDateTime = dataGridView_RecentOrder.Rows[row].Cells["Order_PlacingTime"].Value.ToString();
           
            var result = Convert.ToDateTime(OrderDateTime);

            int OHour = int.Parse(result.ToString("HH", System.Globalization.CultureInfo.CurrentCulture));
            int OMin = int.Parse(result.ToString("mm", System.Globalization.CultureInfo.CurrentCulture));
            int OnSec = int.Parse(result.ToString("ss", System.Globalization.CultureInfo.CurrentCulture));

            int OrderMinuts =Convert.ToInt32( (OHour * 60) + OMin + OnSec * 0.0166667);
            int NowTimeInMinuts = Convert.ToInt32( (Hour * 60) + Min + (Sec * 0.0166667));
            int FinalOrderMinutes = int.Parse(dataGridView_RecentOrder.Rows[row].Cells["Order_CompletionTime"].Value.ToString()) - (NowTimeInMinuts - OrderMinuts);
            if (FinalOrderMinutes <= 0)
            {
                FinalOrderMinutes = 0;
            }
            int OrderCompletionTime = int.Parse(dataGridView_RecentOrder.Rows[row].Cells["Order_CompletionTime"].Value.ToString());
            if (OrderCompletionTime == 0)
            {

                OrderCompletionTime = 1;
            }

            int OrderTimingDifference = OrderCompletionTime - FinalOrderMinutes;
            //  MessageBox.Show("Order Min: "+ OrderMinuts.ToString() +"\n Now Time in Min: "+NowTimeInMinuts.ToString());
            chart1.Series[seriesname].Points.AddXY("", OrderTimingDifference);
            chart1.Series[seriesname].Points.AddXY(FinalOrderMinutes.ToString(), FinalOrderMinutes);
         
            chart1.DrawToBitmap(bmp, chart1.ClientRectangle);

           // bmp = OvalImage(bmp);

            dataGridView_RecentOrder.Rows[row].Cells["Order_RemaningTime"].Value = bmp.Clone();
          
        }
    }
    catch (Exception ex)
    {

        MessageBox.Show(ex.ToString());
    }

}

输出出来会是这样的。

Step 2: How to automatically graph value decrease when system time increase.

    public void StartOrderTimingCounter()
    {

        System.Windows.Forms.Timer OrderRemaningTimer = new System.Windows.Forms.Timer();
        OrderRemaningTimer.Interval = 60000; // specify interval time as you want
        
        OrderRemaningTimer.Tick += new EventHandler(timer_Tick);
        OrderRemaningTimer.Start();
        


    }
  
    void timer_Tick(object sender, EventArgs e)
    {
// call above implemented function
        GenerateGraphOfRemaingTiming();
      
    }

如何使用 C#.Net 在 DataGridView 单元格中 Create/Draw 圆周率图

How to Create/Draw Pi Graph in DataGridView Cell using C#.Net

c#

datagridview

datagridviewcellstyle