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
发布时间:2020-12-15 05:57:29 所属栏目:百科 来源:网络整理
导读:本篇章节讲解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。供大家参考研究。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
本篇章节讲解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。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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