Moduler>GUI-komponenter>Progress
Progress
Vi lager det nytt "project" av typen "Windows Application". Så bruker vi GUI-editoren til å lage en enkel form. Vi får igjen tre kildefiler:
- Program.cs
- Form1.cs
- Form1.Designer.cs
Vi konsentrerer oss om den ene fila som inneholder vår handskrevne kode
Form1.cs
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace control9 { public partial class Form1 : Form { Int32 MaxTime = 10000; Int32 TimeStep = 100; Int32 TimeLeft = 0; bool stopped = false; public Form1() { InitializeComponent(); } private void timer1_Tick(object sender, EventArgs e) { TimeLeft -= timer1.Interval; if ((TimeLeft < TimeStep)||(stopped)) Stop(); else progressBar1.Value += 1; } private void button1_Click(object sender, EventArgs e) { // start button Start(); } private void button2_Click(object sender, EventArgs e) { // stopp button stopped = true; } private void Start() { TimeLeft = MaxTime; timer1.Interval = TimeStep; button1.Hide(); button2.Show(); progressBar1.Maximum = MaxTime/TimeStep; progressBar1.Minimum = 0; progressBar1.Value = 0; progressBar1.Show(); stopped = false; timer1.Enabled = true; } private void Stop() { timer1.Enabled = false; button1.Show(); button2.Hide(); progressBar1.Hide(); } } }