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The author:(作者)delv
published in(发表于) 2014/1/8 7:02:47
C#设计的一个向导程序（Wizard）框架_[Asp.Net教程]

在现实的软件中，经常可以看到一些向导（Wizard）的存在，如何给自己的应用程序实现一个向导呢？
下面给出一个使用面向对象的思想设计出来的应用程序向导框架，虽然很简单，但希望能给人帮助。

其中有三个比较关键的类，一个是向导窗体要收集的信息封装成的类Information，一个是所有向导窗体都要继承的窗体基类frmBase，还有一个就是最关键的类，向导控制类WizardController。

有了基类frmBase，设计一个子类窗体非常简单，只需从frmBase类中派生一个新窗体，设计完用户界面之后重写其UpdateInfo()方法即可。

所有代码（VS2003版）如下，通俗易懂，不再做说明：

Information类：

using System;

namespace Wizard
{
///

//姓名
public string Name = "";
//性别
public bool IsMale = true;
//学历
public string EduBackground = "";
//编程语言
public string ProgrameLanguage = "";
}
}

frmBase类：

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace Wizard
{
///

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

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

///

#region Windows 窗体设计器生成的代码
///

}
#endregion

public WizardController controller = null;

public void DisableButton()
{
if(this.controller == null)
return;
if(this.controller.IsFirstForm)
{
this.btnGoPrev.Enabled = false;
}
else
{
this.btnGoPrev.Enabled = true;
}
if(this.controller.IsLastForm)
{
this.btnGoNext.Enabled = false;
}
else
{
this.btnGoNext.Enabled = true;
}
}
protected virtual void UpdateInfo()
{

}
protected virtual void GoNext()
{
UpdateInfo();
controller.GoNext();
}
protected virtual void GoPrev()
{
UpdateInfo();
controller.GoPrev();
}
protected virtual void Finish()
{
UpdateInfo();
controller.FinishWizard();
this.Visible = false;
}
protected virtual void Cancel()
{
this.controller.info = null;
this.Close();
}

private void btnGoPrev_Click(object sender, System.EventArgs e)
{
GoPrev();
}

private void btnGoNext_Click(object sender, System.EventArgs e)
{
GoNext();
}

private void btnOver_Click(object sender, System.EventArgs e)
{
Finish();
}

private void btnCancel_Click(object sender, System.EventArgs e)
{
Cancel();
}
}
}

向导控制器WizardController类：

using System;
using System.Collections;

namespace Wizard
{
///

public bool IsFirstForm
{
get{ return curIndex == 0;}
}
public bool IsLastForm
{
get{return curIndex == this.WizardForms.Count - 1;}
}
public void GoNext()
{
if(curIndex+1 < WizardForms.Count)
{
((frmBase)WizardForms[curIndex]).Visible = false;
curIndex++;
}
else
{
return;
}
((frmBase)WizardForms[curIndex]).Show();
((frmBase)WizardForms[curIndex]).DisableButton();
}
public void GoPrev()
{
if(curIndex-1 >= 0)
{
((frmBase)WizardForms[curIndex]).Visible = false;
curIndex--;
}
else
{
return;
}
((frmBase)WizardForms[curIndex]).Show();
((frmBase)WizardForms[curIndex]).DisableButton();
}
public void BeginWizard()
{
((frmBase)WizardForms[0]).Show();
((frmBase)WizardForms[curIndex]).DisableButton();
}
public void FinishWizard()
{
curIndex = 0;
Dispose();
}

private void Dispose()
{
foreach(frmBase frm in WizardForms)
{
frm.Close();
}
}
}
}

第一个子窗体：

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace Wizard
{
public class frmStep1 : Wizard.frmBase
{
private System.Windows.Forms.TextBox txtName;
private System.Windows.Forms.RadioButton rdoMale;
private System.Windows.Forms.RadioButton radioButton1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.ComponentModel.IContainer components = null;

public frmStep1()
{
// 该调用是 Windows 窗体设计器所必需的。
InitializeComponent();

// TOD 在 InitializeComponent 调用后添加任何初始化
}

///

#region 设计器生成的代码
///

}
#endregion

protected override void UpdateInfo()
{
this.controller.info.Name = txtName.Text.Trim();
this.controller.info.IsMale = rdoMale.Checked;
}

}
}

第二个子窗体：

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace Wizard
{
public class frmStep2 : Wizard.frmBase
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.ComboBox cbbEduBackground;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.CheckBox checkBox2;
private System.Windows.Forms.CheckBox checkBox3;
private System.Windows.Forms.CheckBox checkBox4;
private System.ComponentModel.IContainer components = null;

public frmStep2()
{
// 该调用是 Windows 窗体设计器所必需的。
InitializeComponent();

// TOD 在 InitializeComponent 调用后添加任何初始化
}

///

#region 设计器生成的代码
///

}
#endregion

protected override void UpdateInfo()
{
this.controller.info.EduBackground = cbbEduBackground.GetItemText(cbbEduBackground.SelectedItem);
string lang = "";
foreach(Control ctl in this.Controls)
{
if(ctl is CheckBox && ((CheckBox)ctl).Checked)
{
lang += ctl.Text + ";";
}
}
this.controller.info.ProgrameLanguage = lang;
}

}
}

测试Demo：

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace Wizard
{
///

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

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

///

#region Windows 窗体设计器生成的代码
///

}
#endregion
///

private void button1_Click(object sender, System.EventArgs e)
{
this.wizard = new WizardController();
this.wizard.BeginWizard();
}using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace Wizard
{
///

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

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

///

#region Windows 窗体设计器生成的代码
///

}
#endregion
///

private void button1_Click(object sender, System.EventArgs e)
{
this.wizard = new WizardController();
this.wizard.BeginWizard();
}

private void button2_Click(object sender, System.EventArgs e)
{
if(this.wizard != null && this.wizard.info != null)
{
this.label1.Text = this.wizard.info.Name;
if(this.wizard.info.IsMale)
this.label2.Text = "男";
else
this.label2.Text = "女";
this.label3.Text = this.wizard.info.EduBackground;
this.label4.Text = this.wizard.info.ProgrameLanguage;
}
else
{
MessageBox.Show("NULL");
}
}
}
}

private void button2_Click(object sender, System.EventArgs e)
{
if(this.wizard != null && this.wizard.info != null)
{
this.label1.Text = this.wizard.info.Name;
if(this.wizard.info.IsMale)
this.label2.Text = "男";
else
this.label2.Text = "女";
this.label3.Text = this.wizard.info.EduBackground;
this.label4.Text = this.wizard.info.ProgrameLanguage;
}
else
{
MessageBox.Show("NULL");
}
}
}
}

来源:网络

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