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关于窗体的有关问题(2)

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{
Form2 frm = new Form2();
frm.Text = treeView1.SelectedNode.Text;
frm.MdiParent=this;
frm.Show();
}
}

public void addnode(string nodename)
{
treeView1.Nodes[0].Nodes.Add(new TreeNode(nodename));
}
}
}


Form2:
---------------------------------
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace TestTree
{
/// <summary>
/// Form2 的摘要说明。
/// </summary>
public class Form2 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Label label1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;

public Form2()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(80, 40);
this.textBox1.Name = "textBox1 ";
this.textBox1.Size = new System.Drawing.Size(168, 21);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "textBox1 ";
//
// button1
//
this.button1.Location = new System.Drawing.Point(72, 80);
this.button1.Name = "button1 ";
this.button1.TabIndex = 1;
this.button1.Text = "button1 ";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(8, 40);
this.label1.Name = "label1 ";
this.label1.Size = new System.Drawing.Size(66, 17);
this.label1.TabIndex = 2;
this.label1.Text = "Form Name: ";
//
// Form2
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 266);
this.Controls.Add(this.label1);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form2 ";
this.Text = "Form2 ";
this.ResumeLayout(false);

}
#endregion

private void button1_Click(object sender, System.EventArgs e)
{
Form2 frm = new Form2();
Form1 mainfrm = (Form1)this.MdiParent;
frm.Text = textBox1.Text.Trim();
frm.MdiParent = mainfrm;
mainfrm.addnode(frm.Text);
frm.Show();
this.Dispose();
}
}
}

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