本文实例讲述了C#实现winform用子窗体刷新父窗体及子窗体改变父窗体控件值的方法。分享给大家供大家参考。具体如下：

第一种方法:

用委托,Form2和Form3是同一组

Form2

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

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

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; } } }

希望本文所述对大家的C#程序设计有所帮助。