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private Thread form;
private Form2 f;
private void CreatForm()
{
f = new Form2();
f.ShowDialog();
}
public delegate void ChangeLabelDelegate();
private void ChangeL()
{
f.label1.Text = "hello,I'am in the line1!";
}
public delegate void CloseFormDelegate();
private void CloseF()
{
f.Close();
}
private void button1_Click(object sender, EventArgs e)
{
form = new Thread(CreatForm);
form.Start();
}
private void button2_Click(object sender, EventArgs e)
{
CloseFormDelegate close = new CloseFormDelegate(CloseF);
Invoke(close, null); }
private void button3_Click(object sender, EventArgs e)
{
ChangeLabelDelegate change = new ChangeLabelDelegate(ChangeL);
Invoke(change, null);
}
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 WindowsApplication36
{
public partial class Form1 : Form
{
Form ThreadForm;
delegate void SetForm(Form F);
delegate void NewLabel();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
new Thread(new ThreadStart(Thread1)).Start(); // 创建Form
}
void Thread1()
{
SetForm PSetForm = new SetForm(DoSetForm);
this.Invoke(PSetForm, new Object[] { new Form() });
}
void DoSetForm(Form F)
{
ThreadForm = F;
ThreadForm.Show();
}
private void button2_Click(object sender, EventArgs e)
{
ThreadForm.Close(); // 关闭Form
}
private void button3_Click(object sender, EventArgs e)
{
new Thread(new ThreadStart(Thread2)).Start(); // 在创建的Form上创建Label并赋值
}
void Thread2()
{
NewLabel PNewLabel = new NewLabel(DoNewLabel);
this.Invoke(PNewLabel, null);
}
void DoNewLabel()
{
Label L = new Label();
L.Text = "AAA";
L.Parent = ThreadForm;
}
}
}