Winform数据即时更新 父窗体子窗体即时更新
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
- {
- publicdelegatevoid SetVisiableHandler();
- public partial class Form2 : Form
- {
- public Form2()
- {
- InitializeComponent();
- }
- privatevoid button1_Click(object sender, EventArgs e)
- {
- Form3 frm = new Form3(new SetVisiableHandler(SetVisiable));
- frm.Show();
- }
- privatevoid SetVisiable()
- {
- SetVisiable(this.label1, !this.label1.Visible);
- }
- privatevoid SetVisiable(Control control, bool visiable)
- {
- if (this.Controls.Contains(control))
- {
- control.Visible = visiable;
- }
- }
- }
- }
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;
- }
- privatevoid btnVisible_Click(object sender, EventArgs e)
- {
- if (this.m_setVisible != null)
- {
- this.m_setVisible();
- }
- }
- }
- }
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
- privatestring strLabel1 = "";
- publicstring StrLabel1
- {
- get
- {
- return strLabel1;
- }
- set
- {
- strLabel1 = value;
- this.label1.Text = strLabel1;
- }
- }
- #endregion
- privatevoid button1_Click(object sender, EventArgs e)
- {
- Form5 form5 = new Form5(this);//这里注意传个this
- form5.Show();
- }
- }
- }
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();
- }
- privatevoid button1_Click(object sender, EventArgs e)
- {
- form4.StrLabel1 = this.textBox1.Text;
- }
- }
- }
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; } } }
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