سؤال في ال Threading

Cross-thread operation not valid: Control

'listBox1' accessed from a thread other than the thread it was created on.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Threading;



namespace _

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}



public void calc()

{

for (int x = 0; x < 100000 ; x++ )

{



listBox1.Items.Add(x);



}

}



ThreadStart d = null;

Thread t = null;

private void button1_Click(object sender, EventArgs e)

{

d = new ThreadStart(calc);

t = new Thread(d);

t.Start();

}



}

}

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