an怎么做淡入_ASP.NET--窗体实现淡入淡出效果

以下是TransForm.cs源码:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace TransForm

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

timer1.Enabled = false;

inspeed = 10;

outspeed = 10;

}

private System.Windows.Forms.Timer timer1;

public System.Windows.Forms.Button button1;

#region Windows 窗体设计器生成的代码

///

/// 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。

///

private void InitializeComponent()

{

this.components = new System.ComponentModel.Container();

this.timer1 = new System.Windows.Forms.Timer(this.components);

this.button1 = new System.Windows.Forms.Button();

this.SuspendLayout();

//

// timer1

//

this.timer1.Tick += new System.EventHandler(this.timer1_Tick);

//

// button1

//

this.button1.Location = new System.Drawing.Point(342, 205);

this.button1.Name = "button1";

this.button1.Size = new System.Drawing.Size(62, 23);

this.button1.TabIndex = 0;

this.button1.Text = "关闭";

this.button1.UseVisualStyleBackColor = true;

this.button1.Click += new System.EventHandler(this.button1_Click);

//

// Form1

//

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(416, 240);

this.ControlBox = false;

this.Controls.Add(this.button1);

this.Name = "Form1";

this.Text = "Transform";

this.Load += new System.EventHandler(this.Form1_Load);

this.ResumeLayout(false);

}

#endregion

private int state;//淡入淡出状态

private double inspeed;

private double outspeed;

public double InSpeed //淡入速度属性(0---100)

{

get

{

return inspeed;

}

set

{

inspeed = value;

}

}

public double OutSpeed //淡出速度属性(0---100)

{

get

{

return outspeed;

}

set

{

outspeed = value;

}

}

private void Form1_Load(object sender, EventArgs e)

{

state = 0;

timer1.Enabled = true;

this.Opacity = 0;

}

private void timer1_Tick(object sender, EventArgs e)

{

if (state >= 0)

{

this.Opacity += inspeed/100 ;

if (this.Opacity == 1)

{

timer1.Enabled = false;

}

}

else if (state < 0)

{

this.Opacity -= outspeed/100 ;

if (this.Opacity == 0)

{

this.Close();

timer1.Enabled = false;

}

}

}

public void FormClose()//窗体关闭时,调用此函数实现淡出效果

{

state = -1;

timer1.Enabled = true;

}

private void button1_Click(object sender, EventArgs e)

{

FormClose();

}

}

}

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