Start a new project. There are no controls for this project.
Add this code to declare the arrays for the budget:
public partial class Form1 : Form { String[] budgetItems = { "Rent", "Food", "Transportation" }; int[] cost = { 500, 275, 300 }; Color[] colors = { Color.Red, Color.Blue, Color.Green }; ...
Remember that you can not draw in form load. Add the code below for the paint event:
private void Form1_Paint(object sender, PaintEventArgs e) { // Find and display the total int total = cost.Sum(); this.Text = "Total Budget: " + total.ToString("$0.00"); // Get the graphics of the form. Graphics g = this.CreateGraphics(); // Create a Black Brush. SolidBrush myBrush = new SolidBrush(Color.Black); // Create a rectangle 200x200 (square) for the circle. Rectangle myRect = new Rectangle(10, 10, 200, 200); g.FillPie(myBrush, myRect, 0, 360); // Set the starting point for the legend and the pie: int top = 220; float startAngle=0.0F; // Draw the pie for each budget item and draw the string for the legend. for (int i = 0; i < cost.Length; i++) { // Draw the pie for item float percent = 1.0F* cost[i] / total; float degrees = 360 * percent; // Change the brush color for each item. myBrush.Color = colors[i]; g.FillPie(myBrush, myRect, startAngle, degrees); // Change the start angle for next item. startAngle += degrees; // Draw the string for item g.FillRectangle(myBrush, 10, top, 10, 10); g.DrawString(budgetItems[i]+cost[i].ToString(" $0.00"), this.Font,myBrush, 25, top); // Move the position for the legend down. top += 15; } }
