public frmChild(cResult r):this() 谁能告诉我:this()是什么意思

Question

private cResult r;
public frmChild(cResult r):this()
{
this.r = r;
}
请问在这个代码中，所继承的this()是什么意思啊
谢谢了

Answer 1

当生成一个frmChild的时候。自动生成一个cResult对象。且cResult对象被赋值为frmChild的r？！？！????

Answer 2

晚上的代码在这里，请高手解释下:this()意思
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;namespace WinParam
{
/// <summary>
/// ChildForm 的摘要说明。
/// </summary>
public class frmChild : System.Windows.Forms.Form
{
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.GroupBox groupBox2;
private System.Windows.Forms.RadioButton optThree;
private System.Windows.Forms.RadioButton optOne;
private System.Windows.Forms.RadioButton optTwo;
private System.Windows.Forms.TextBox txtResult2;
private System.Windows.Forms.TextBox txtResult1;
private System.Windows.Forms.Button cmdOk;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public frmChild()
{
//
// 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
//
} private cResult r; public frmChild(cResult r):this()
{
this.r = r;
} /// <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.groupBox1 = new System.Windows.Forms.GroupBox();
this.optThree = new System.Windows.Forms.RadioButton();
this.optOne = new System.Windows.Forms.RadioButton();
this.optTwo = new System.Windows.Forms.RadioButton();
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.txtResult2 = new System.Windows.Forms.TextBox();
this.txtResult1 = new System.Windows.Forms.TextBox();
this.cmdOk = new System.Windows.Forms.Button();
this.groupBox1.SuspendLayout();
this.groupBox2.SuspendLayout();
this.SuspendLayout();
// 
// groupBox1
// 
this.groupBox1.Controls.Add(this.optThree);
this.groupBox1.Controls.Add(this.optOne);
this.groupBox1.Controls.Add(this.optTwo);
this.groupBox1.Location = new System.Drawing.Point(8, 8);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(144, 104);
this.groupBox1.TabIndex = 5;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "修改父窗体值";
// 
// optThree
// 
this.optThree.Location = new System.Drawing.Point(16, 72);
this.optThree.Name = "optThree";
this.optThree.Size = new System.Drawing.Size(104, 16);
this.optThree.TabIndex = 7;
this.optThree.Text = "Show \"Three\"";
this.optThree.CheckedChanged += new System.EventHandler(this.optThree_CheckedChanged);
// 
// optOne
// 
this.optOne.Location = new System.Drawing.Point(16, 24);
this.optOne.Name = "optOne";
this.optOne.Size = new System.Drawing.Size(104, 16);
this.optOne.TabIndex = 6;
this.optOne.Text = "Show \"One\"";
this.optOne.CheckedChanged += new System.EventHandler(this.optOne_CheckedChanged);
// 
// optTwo
// 
this.optTwo.Location = new System.Drawing.Point(16, 48);
this.optTwo.Name = "optTwo";
this.optTwo.Size = new System.Drawing.Size(104, 16);
this.optTwo.TabIndex = 5;
this.optTwo.Text = "Show \"Two\"";
this.optTwo.CheckedChanged += new System.EventHandler(this.optTwo_CheckedChanged);
// 
// groupBox2
// 
this.groupBox2.Controls.Add(this.txtResult2);
this.groupBox2.Controls.Add(this.txtResult1);
this.groupBox2.Location = new System.Drawing.Point(160, 8);
this.groupBox2.Name = "groupBox2";
this.groupBox2.Size = new System.Drawing.Size(136, 104);
this.groupBox2.TabIndex = 6;
this.groupBox2.TabStop = false;
this.groupBox2.Text = "回传的结果";
// 
// txtResult2
// 
this.txtResult2.Location = new System.Drawing.Point(16, 64);
this.txtResult2.Name = "txtResult2";
this.txtResult2.TabIndex = 3;
this.txtResult2.Text = "Result(2)";
// 
// txtResult1
// 
this.txtResult1.Location = new System.Drawing.Point(16, 32);
this.txtResult1.Name = "txtResult1";
this.txtResult1.TabIndex = 2;
this.txtResult1.Text = "Result(1)";
// 
// cmdOk
// 
this.cmdOk.DialogResult = System.Windows.Forms.DialogResult.OK;
this.cmdOk.Location = new System.Drawing.Point(224, 128);
this.cmdOk.Name = "cmdOk";
this.cmdOk.TabIndex = 7;
this.cmdOk.Text = "确定(&O)";
this.cmdOk.Click += new System.EventHandler(this.cmdOk_Click);
// 
// frmChild
// 
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(304, 157);
this.Controls.Add(this.cmdOk);
this.Controls.Add(this.groupBox2);
this.Controls.Add(this.groupBox1);
this.Name = "frmChild";
this.Text = "子窗体";
this.groupBox1.ResumeLayout(false);
this.groupBox2.ResumeLayout(false);
this.ResumeLayout(false); }
#endregion private void optOne_CheckedChanged(object sender, System.EventArgs e)
{
r.ChangeText("One");
} private void optTwo_CheckedChanged(object sender, System.EventArgs e)
{
r.ChangeText("Two");
} private void optThree_CheckedChanged(object sender, System.EventArgs e)
{
r.ChangeText("Three");
} private void cmdOk_Click(object sender, System.EventArgs e)
{
r.Result1 = txtResult1.Text;
r.Result2 = txtResult2.Text;
}
}
}

Answer 3

private cResult r; public frmChild(cResult r):this()
{
this.r = r;
}====
public frmChild(cResult r)
{
InitializeComponent();
this.r = r;
}

Answer 4

cResult 是声名的类，现在问题是不知道this()是什么东西
public delegate void TextChangedHandler(string s); public class cResult
{
public string Result1 = "";
public string Result2 = "";

public event TextChangedHandler TextChanged; public void ChangeText(string s)
{
if(TextChanged != null)
TextChanged(s);
}
}

Answer 5

public frmChild()
{
InitializeComponent();
}
public frmChild(cResult r):this()
{
this.r = r;
}---->public frmChild()
{
InitializeComponent();
}
public frmChild(cResult r)
{
InitializeComponent();
this.r = r;
}