C# Windows Form 刷新父窗体
第一种方法:
用委托,Form2和Form3是同一组
Form2
C#代码
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace TestMouseMove { public delegate void SetVisiableHandler(); public partial class Form2 : Form { public Form2() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { Form3 frm = new Form3(new SetVisiableHandler(SetVisiable)); frm.Show(); } private void SetVisiable() { SetVisiable(this.label1, !this.label1.Visible); } private void SetVisiable(Control control, bool visiable) { if (this.Controls.Contains(control)) { control.Visible = visiable; } } } }
Form3
C#代码
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace TestMouseMove { public partial class Form3 : Form { private SetVisiableHandler m_setVisible; public Form3(SetVisiableHandler setvisible) { InitializeComponent(); this.m_setVisible = setvisible; } private void btnVisible_Click(object sender, EventArgs e) { if (this.m_setVisible != null) { this.m_setVisible(); } } } }
第二种方法:
用变量,Form4和Form5是同一组
Form4
C#代码
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace TestMouseMove { public partial class Form4 : Form { public Form4() { InitializeComponent(); } #region 子窗口刷新父窗口的值 private string strLabel1 = ""; public string StrLabel1 { get { return strLabel1; } set { strLabel1 = value; this.label1.Text = strLabel1; } } #endregion private void button1_Click(object sender, EventArgs e) { Form5 form5 = new Form5(this);//这里注意传个this form5.Show(); } } }
Form5
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace TestMouseMove
{
public partial class Form5 : Form
{
Form4 form4 = new Form4();
public Form5(Form4 formFrm)//这个构造方法里有参数
{
form4 = formFrm; //这个必须要有
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
form4.StrLabel1 = this.textBox1.Text;
}
}
}
第3种方法
遍历窗体查找
foreach (Form frm in Application.OpenForms)
{
if (frm.Name == "要找的状体")
{
frm.Refresh();
}
}