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关于不同窗体之间的控件查询 - 方式一(静态的窗体数组)

2005-01-21 12:55 531 查看
关于不同窗体之间的控件查询 - 方式一

==============================================================
新建一个类 取名为 : UcFormCollector.cs
==============================================================
using System;
using System.Collections;
using System.Windows.Forms;

namespace QueryForm1
{

 //查询窗体的方式
 public enum UcQueryType{ Form , Control }

 /// <summary>
 /// 窗体收集者(采用数组收集方式)
 /// </summary>
 public sealed class UcFormCollector
 {
  
  private static ArrayList m_FormList = new ArrayList();

  //窗体数组集合
  public static ArrayList FormList
  {
   get
   {
    return m_FormList;
   }
  }

  /// <summary>
  /// 添加窗体
  /// </summary>
  /// <param name="p_Form">当前窗体</param>
  public static void AddForm( Form p_Form )
  {
   if( m_FormList.Contains( p_Form.Handle ) ){ return ; }

   m_FormList.Add( p_Form.Handle );
   AttachEvent( p_Form );
  }

  /// <summary>
  /// 移除窗体
  /// </summary>
  /// <param name="p_Form">当前窗体</param>
  public static void RemoveForm( Form p_Form )
  {
   m_FormList.Remove( p_Form.Handle );
  }

  /// <summary>
  /// 查询窗体
  /// </summary>
  /// <param name="p_FormName">窗体的名称</param>
  /// <returns>返回查找到的窗体,否则返回null</returns>
  public static Form QueryForm( string p_FormName )
  {
   IEnumerator myEnumerator = m_FormList.GetEnumerator();

   Form currForm = null;
   Form findForm = null;

   while( myEnumerator.MoveNext() )
   {

    currForm = ( Form ) Form.FromHandle( ( System.IntPtr ) myEnumerator.Current ) ;

    if( currForm.Name.ToLower() == p_FormName.ToLower() )
    {
     findForm = currForm;
    }
   }

   return findForm;

  }

  /// <summary>
  /// 查询窗体上的控件
  /// </summary>
  /// <param name="p_FormName">窗体的名称</param>
  /// <param name="p_ControlName">窗体上控件的名称</param>
  /// <returns>返回查找到的控件,否则返回null</returns>
  public static Control QueryControl( string p_FormName , string p_ControlName )
  {
   
   Form currForm  = QueryForm( p_FormName );
   Control findControl = null;

   if( currForm != null )
   {
    foreach( Control ctr in currForm.Controls )
    {
     if( ctr.Name.ToLower() == p_ControlName.ToLower() )
     {
      findControl = ctr;
     }
    }
   }

   return findControl;

  }

  /// <summary>
  /// 在添加的窗体事件委托事件
  /// </summary>
  /// <param name="p_CurrForm"></param>
  private static void AttachEvent( Form p_CurrForm )
  {
   p_CurrForm.Closed += new EventHandler( OnFormClosedRemoveItem );
  }

  //当窗体关闭后释放,窗体集合里的窗体
  private static void OnFormClosedRemoveItem( object sender, System.EventArgs e )
  {
   RemoveForm( ( Form ) sender );
  }

 }
}
==============================================================
新建窗体 取名为 : Form1.cs
==============================================================
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Threading;

namespace QueryForm1
{
 /// <summary>
 /// Form1 的摘要说明。
 /// </summary>
 public class Form1 : System.Windows.Forms.Form
 {
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.TextBox textBox2;
  private System.Windows.Forms.Button button1;
  private System.Windows.Forms.RadioButton radioButton1;
  private System.Windows.Forms.RadioButton radioButton2;
  /// <summary>
  /// 必需的设计器变量。
  /// </summary>
  private System.ComponentModel.Container components = null;

  //查询方式

  UcQueryType QueryType = new UcQueryType();

  public Form1()
  {
   //
   // 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
   //

   UcFormCollector.AddForm( this );

   Thread t1 = new Thread( new ThreadStart( ShowForm2 ) );
   Thread t2 = new Thread( new ThreadStart( ShowForm3 ) );

   t1.Start();
   t2.Start();

  }

  private void ShowForm2()
  {
   Application.Run( new Form2() );
  }

  private void ShowForm3()
  {
   Application.Run( new Form3() );
  }

  /// <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.textBox2 = new System.Windows.Forms.TextBox();
   this.button1 = new System.Windows.Forms.Button();
   this.radioButton1 = new System.Windows.Forms.RadioButton();
   this.radioButton2 = new System.Windows.Forms.RadioButton();
   this.SuspendLayout();
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(24, 40);
   this.textBox1.Name = "textBox1";
   this.textBox1.TabIndex = 0;
   this.textBox1.Text = "FormName";
   //
   // textBox2
   //
   this.textBox2.Location = new System.Drawing.Point(24, 88);
   this.textBox2.Name = "textBox2";
   this.textBox2.TabIndex = 1;
   this.textBox2.Text = "ControlName";
   //
   // button1
   //
   this.button1.Location = new System.Drawing.Point(24, 200);
   this.button1.Name = "button1";
   this.button1.TabIndex = 2;
   this.button1.Text = "查询";
   this.button1.Click += new System.EventHandler(this.button1_Click);
   //
   // radioButton1
   //
   this.radioButton1.Checked = true;
   this.radioButton1.Location = new System.Drawing.Point(24, 136);
   this.radioButton1.Name = "radioButton1";
   this.radioButton1.Size = new System.Drawing.Size(136, 24);
   this.radioButton1.TabIndex = 3;
   this.radioButto
4000
n1.TabStop = true;
   this.radioButton1.Text = "查询窗体(Form)";
   this.radioButton1.CheckedChanged += new System.EventHandler(this.radioButton1_CheckedChanged);
   //
   // radioButton2
   //
   this.radioButton2.Location = new System.Drawing.Point(24, 160);
   this.radioButton2.Name = "radioButton2";
   this.radioButton2.Size = new System.Drawing.Size(192, 24);
   this.radioButton2.TabIndex = 4;
   this.radioButton2.Text = "查询窗体上的控件(Control)";
   this.radioButton2.CheckedChanged += new System.EventHandler(this.radioButton2_CheckedChanged);
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(292, 273);
   this.Controls.Add(this.radioButton2);
   this.Controls.Add(this.radioButton1);
   this.Controls.Add(this.button1);
   this.Controls.Add(this.textBox2);
   this.Controls.Add(this.textBox1);
   this.Name = "Form1";
   this.Text = "窗体与控件查询(窗体收集方式)";
   this.ResumeLayout(false);

  }

  #endregion

  static void Main()
  {
   Application.Run( new Form1() );
  }

  private void button1_Click(object sender, System.EventArgs e)
  {
   string FormName  = textBox1.Text.Trim();
   string ControlName = textBox2.Text.Trim();
   string str = "";

   str = "QueryType : " + QueryType.ToString() + "/n/n";

   if( QueryType == UcQueryType.Form )
   {
    Form currForm = UcFormCollector.QueryForm( FormName );

    if( currForm == null )
    {
     str += "Object is not found!";
    }
    else
    {
     str += "Text is : /"" + currForm.Text + "/"";
    }
   }
   else if( QueryType == UcQueryType.Control )
   {
    Control currControl = UcFormCollector.QueryControl( FormName , ControlName );

    if( currControl == null )
    {
     str += "Object is not found!";
    }
    else
    {
     str += "Text is : /"" + currControl.Text + "/"";
    }
   }

   MessageBox.Show( str );

  }

  private void radioButton1_CheckedChanged(object sender, System.EventArgs e)
  {
   QueryType = UcQueryType.Form;
  }

  private void radioButton2_CheckedChanged(object sender, System.EventArgs e)
  {
   QueryType = UcQueryType.Control;
  }

 }
}
==============================================================
新建窗体 取名为 : Form2.cs
==============================================================
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace QueryForm1
{
 /// <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;
  /// <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
   //
   
   UcFormCollector.AddForm( this );
   UcFormCollector.AddForm( this ); //重复无效

  }

  /// <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.SuspendLayout();
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(56, 64);
   this.textBox1.Name = "textBox1";
   this.textBox1.Size = new System.Drawing.Size(192, 21);
   this.textBox1.TabIndex = 0;
   this.textBox1.Text = "被查询窗体2的文本框:textBox1";
   //
   // button1
   //
   this.button1.Location = new System.Drawing.Point(56, 104);
   this.button1.Name = "button1";
   this.button1.Size = new System.Drawing.Size(192, 23);
   this.button1.TabIndex = 1;
   this.button1.Text = "被查询窗体2的按钮:button1";
   //
   // Form2
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(292, 273);
   this.Controls.Add(this.button1);
   this.Controls.Add(this.textBox1);
   this.Name = "Form2";
   this.Text = "被查询窗体2";
   this.ResumeLayout(false);

  }
  #endregion

 }
}

==============================================================
新建窗体 取名为 : Form3.cs
==============================================================
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace QueryForm1
{
 /// <summary>
 /// Form3 的摘要说明。
 /// </summary>
 public class Form3 : System.Windows.Forms.Form
 {
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.Button button1;
  /// <summary>
  /// 必需的设计器变量。
  /// </summary>
  private System.ComponentModel.Container components = null;

  public Form3()
  {
   //
   // 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
   //

   UcFormCollector.AddForm( this );

  }

  /// <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.SuspendLayout();
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(56, 72);
   this.textBox1.Name = "textBox1";
   this.textBox1.Size = new System.Drawing.Size(200, 21);
   this.textBox1.TabIndex = 0;
   this.textBox1.Text = "被查询窗体3的文本框:textBox1";
   //
   // button1
   //
   this.button1.Location = new System.Drawing.Point(56, 112);
   this.button1.Name = "button1";
   this.button1.Size = new System.Drawing.Size(200, 23);
   this.button1.TabIndex = 1;
   this.button1.Text = "被查询窗体3的按钮:button1";
   //
   // Form3
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(292, 273);
   this.Controls.Add(this.button1);
   this.Controls.Add(this.textBox1);
   this.Name = "Form3";
   this.Text = "被查询窗体3";
   this.ResumeLayout(false);

  }
  #endregion
 }
}

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