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Editor to share with you how to achieve the statistical chart of C# on the form, I believe that most people do not know much about it, so share this article for your reference. I hope you will learn a lot after reading this article. Let's learn about it!

The details are as follows

Suddenly need to use C # to make statistical charts, at first not very clear how to do, look at some code to achieve statistical charts of the document. Finally, the bar chart is set up, and then the pie chart is needed. I still wanted to draw it myself, and then I found out that C # has this kind of form control, and the control drawing is much better than me.

This is a function of my own bar chart:

Public static int width = 400, height = 400 beat / declare width and height Bitmap bitmap = new Bitmap (width, height); / / create a drawing object / / these four parameters are respectively the column names of the table, tp1,tp2,tp3 are all bar lengths, and S1 int tp1 s2ms3 represents the data public void createImage (string s, int tp1, int tp2,int tp3, string S1, string s2 and string s3) {Graphics g = Graphics.FromImage (bitmap) of each bar. G.FillRectangle (Brushes.Black, 0,0,400,400); / / Border try {g.Clear (Color.White); / / create 6 brush to fill the color Brush brush2 = new SolidBrush (Color.White); Brush brush3 = new SolidBrush (Color.Black) Brush brush4 = new SolidBrush (Color.Red); Brush brush5 = new SolidBrush (Color.Green); Brush brush6 = new SolidBrush (Color.Orange); Brush brush7 = new SolidBrush (Color.DarkBlue); / / create two Font objects to set the font Font font1 = new Font ("Arial", 16, FontStyle.Bold) Font font2 = new Font ("Courier New", 8); g.FillRectangle (brush2, 0,0, width, height); / / drawing background map g.DrawString (s, font1, brush3, new Point (90,20)); / / drawing title Point p1 = new Point (30,300); Point p2 = new Point (330,300) / / the subtraction used here is due to the difference between the canvas coordinate system and the mathematical coordinate system. Refer to the following figure g.DrawString (S1, font2, brush3, new Point (90,285-(tp1 * 10)); g.DrawString (S2, font2, brush3, new Point (150,285-(tp2 * 10) G.DrawString (S2, font2, brush3, new Point (210,285-(tp3 * 10)); g.FillRectangle (brush4, 90,300-(tp1 * 10), 50, tp1 * 10); / / g.FillRectangle (brush5, 150,300-(tp2 * 10), 50, tp2 * 10) / / g.FillRectangle (brush6, 210,300-(tp3 * 10), 50, tp3 * 10); g.DrawLine (new Pen (Color.Black), p1, p2); / / draw a straight line pictureBox1.Image = bitmap;} catch (Exception) {throw;}}

Coordinate system in the canvas:

It would be much easier to do it with the chart control in C#.

1. Find the Legends property of the control and change the Enabled to False.

two。 Find the Series property of the control and change the ChartType to the table form you need.

3. The next step is to add data to the chart control.

One of the ways to add data:

String [] xData = {"Manager", "Director", "sales"}; int [] yData = {10,20,30}; chart1.Series [0] ["PieLabelStyle"] = "Outside"; / / move the text to the outside chart1.Series [0] ["PieLineColor"] = "Black"; / / draw a black line. Chart1.Series [0] .Points.DataBindXY (xData, yData); the above is all the content of the article "how to implement the Statistical Chart on the form". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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