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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace BackgroundWorker_Exemple
{
public partial class Form1 : Form
{
private delegate String GetTextDelegateHandler();
private GetTextDelegateHandler GetTextDelegate;
private delegate void SetTextDelegateHandler(String texte);
private SetTextDelegateHandler SetTextDelegate;
public Form1()
{
InitializeComponent();
GetTextDelegate = new GetTextDelegateHandler(GetText);
SetTextDelegate = new SetTextDelegateHandler(SetText);
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void SetLabel()
{
string sTexte = textBox1.Text;
char[] tableauLettres = sTexte.ToCharArray();
foreach (char l in tableauLettres)
{
String texte = (String)label1.Invoke(GetTextDelegate);
texte += l.ToString();
label1.Invoke(SetTextDelegate, texte);
Thread.Sleep(1000);
}
}
private String GetText()
{
return label1.Text;
}
private void SetText(String texte)
{
label1.Text = texte;
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
SetLabel();
}
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
}
}
} |
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