• 自己写的一个分页控件类(WinForm)

    1. using System;
    2. using System.Collections.Generic;
    3. using System.ComponentModel;
    4. using System.Drawing;
    5. using System.Data;
    6. using System.Text;
    7. using System.Windows.Forms;
    9. namespace xYuanShian.ControlLibrary
    10. {
    11.         /// <summary>
    12.         /// 翻页控件
    13.         /// </summary>
    14.         public partial class PageControl : UserControl
    15.         {
    16.                 #region 私有成员
    17.                 /// <summary>
    18.                 /// 页长
    19.                 /// </summary>
    20.                 private int _PageSize = 50;
    21.                 /// <summary>
    22.                 /// 总记录数
    23.                 /// </summary>
    24.                 private int _RecordCount = 0;
    25.                 /// <summary>
    26.                 /// 当前页码
    27.                 /// </summary>
    28.                 private int _PageIndex = 1;
    29.                 /// <summary>
    30.                 /// 获取或设置页数量
    31.                 /// </summary>
    32.                 private int PageCount { get; set; }
    33.                 /// <summary>
    34.                 /// 获取或设置跳转页面
    35.                 /// </summary>
    36.                 private int GoIndex { get; set; }
    37.                 #endregion 私有成员
    38.  
    39.                 #region 公有成员
    40.                 /// <summary>
    41.                 /// 获取或设置页显示数量
    42.                 /// </summary>
    43.                 public int PageSize
    44.                 {
    45.                         get { return _PageSize; }
    46.                         set
    47.                         {
    48.                                 if ( value <= 0 )
    49.                                 {
    50.                                         MessageBox.Show( "页码不正确!", "错误！" );
    51.                                 }
    52.                                 else
    53.                                 {
    54.                                         _PageSize = value;
    55.                                         this.SetPageCountValue();
    56.                                 }
    57.                         }
    58.                 }
    59.                 /// <summary>
    60.                 /// 获取或设置数据总条数
    61.                 /// </summary>
    62.                 public int RecordCount
    63.                 {
    64.                         get { return _RecordCount; }
    65.                         set
    66.                         {
    67.                                 _RecordCount = value;
    68.                                 this.SetPageCountValue();
    69.                         }
    70.                 }
    71.                 /// <summary>
    72.                 /// 获取页码
    73.                 /// </summary>
    74.                 public int CurrentIndex { get { return _PageIndex; } }
    75.                 /// <summary>
    76.                 /// 翻页事件
    77.                 /// </summary>
    78.                 public event PageControlEventHandler PageChange;
    79.                 #endregion 公有成员
    81.                 /// <summary>
    82.                 /// 构造函数
    83.                 /// </summary>
    84.                 public PageControl()
    85.                 {
    86.                         InitializeComponent();
    87.                 }
    88.                 /// <summary>
    89.                 /// 构造函数
    90.                 /// </summary>
    91.                 /// <param name="RecordCount">总记录数</param>
    92.                 public void Init( int RecordCount, int pageSize )
    93.                 {
    94.                         /// 数据条数
    95.                         _RecordCount = RecordCount;
    97.                         /// 页长
    98.                         _PageSize = pageSize;
    100.                         //跳转页码
    101.                         GoIndex = 0;
    103.                         SetPageCountValue();
    104.                         RefreshData();
    105.                 }
    106.                 /// <summary>
    107.                 /// 刷新控件的显示
    108.                 /// </summary>
    109.                 public void RefreshText()
    110.                 {
    111.                         lblCustomInfo.Text = "第 " + CurrentIndex.ToString() + " 页／共 " + PageCount.ToString() + " 页";
    112.                         txtPageSize.Text = _PageSize.ToString();
    113.  
    114.                         #region 设置按钮状态
    115.                         if ( PageCount == 1 )
    116.                         {
    117.                                 lbllPage.Enabled = false;
    118.                                 lblnPage.Enabled = false;
    119.                                 lblpPage.Enabled = false;
    120.                                 lblfPage.Enabled = false;
    121.                         }
    122.                         else if ( _PageIndex >= PageCount )
    123.                         {
    124.                                 lblnPage.Enabled = false;
    125.                                 lbllPage.Enabled = false;
    126.                                 lblpPage.Enabled = true;
    127.                                 lblfPage.Enabled = true;
    128.                         }
    129.                         else if ( _PageIndex <= 1 )
    130.                         {
    131.                                 lblnPage.Enabled = true;
    132.                                 lbllPage.Enabled = true;
    133.                                 lblpPage.Enabled = false;
    134.                                 lblfPage.Enabled = false;
    135.                         }
    136.                         else
    137.                         {
    138.                                 lbllPage.Enabled = true;
    139.                                 lblnPage.Enabled = true;
    140.                                 lblpPage.Enabled = true;
    141.                                 lblfPage.Enabled = true;
    142.                         }
    143.                         #endregion 设置按钮状态
    144.                 }
    145.                 /// <summary>
    146.                 /// 设置各种值
    147.                 /// </summary>
    148.                 private void SetPageCountValue()
    149.                 {
    150.                         /// 页总数
    151.                         PageCount = ( _RecordCount / _PageSize ) + 1;
    153.                         /// 如果总数刚才被页长整除，则页码减1
    154.                         if ( _RecordCount % _PageSize == 0 ) PageCount--;
    156.                         /// 当改页总数改变后，当前页码比最大的页码还大，则设置为最大页码
    157.                         if ( _PageIndex > PageCount )
    158.                                 _PageIndex = PageCount;
    159.                         else if ( _PageIndex <= 0 )
    160.                                 _PageIndex = 1;
    161.                 }
    162.                 /// <summary>
    163.                 /// 翻到首页
    164.                 /// </summary>
    165.                 /// <param name="sender"></param>
    166.                 /// <param name="e"></param>
    167.                 private void lblfPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
    168.                 {
    169.                         //第一页
    170.                         this.JumpPage( 1 );
    171.                 }
    172.                 /// <summary>
    173.                 /// 上一页
    174.                 /// </summary>
    175.                 /// <param name="sender"></param>
    176.                 /// <param name="e"></param>
    177.                 private void lblpPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
    178.                 {
    179.                         //上一页
    180.                         this.JumpPage( _PageIndex - 1 );
    181.                 }
    182.                 /// <summary>
    183.                 /// 下一页
    184.                 /// </summary>
    185.                 /// <param name="sender"></param>
    186.                 /// <param name="e"></param>
    187.                 private void lblnPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
    188.                 {
    189.                         //下一页
    190.                         this.JumpPage( _PageIndex + 1 );
    191.                 }
    192.                 /// <summary>
    193.                 /// 末页
    194.                 /// </summary>
    195.                 /// <param name="sender"></param>
    196.                 /// <param name="e"></param>
    197.                 private void lbllPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
    198.                 {
    199.                         //最后页
    200.                         this.JumpPage( PageCount );
    201.                 }
    202.                 /// <summary>
    203.                 /// 跳转
    204.                 /// </summary>
    205.                 /// <param name="sender"></param>
    206.                 /// <param name="e"></param>
    207.                 private void lblGo_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
    208.                 {
    209.                         //跳转
    210.                         int gpi = 0;
    211.                         if ( String.IsNullOrEmpty( tbxGo.Text ) || !int.TryParse( tbxGo.Text, out gpi ) )
    212.                         {
    213.                                 tbxGo.Text = "";
    214.                                 MessageBox.Show( "目标页码不正确！", "错误" );
    215.                                 return;
    216.                         }
    218.                         this.JumpPage( gpi );
    219.                 }
    220.                 /// <summary>
    221.                 /// 翻页
    222.                 /// </summary>
    223.                 /// <param name="pIndex">目标页码</param>
    224.                 private void JumpPage( int pIndex )
    225.                 {
    226.                         _PageIndex = pIndex;
    227.                         if ( _PageIndex <= 0 )
    228.                                 _PageIndex = 1;
    229.                         else if ( _PageIndex > PageCount )
    230.                                 _PageIndex = PageCount;
    232.                         /// 更新外观，以及调用数据
    233.                         RefreshData();
    234.                 }
    235.                 /// <summary>
    236.                 /// 刷新文本
    237.                 /// </summary>
    238.                 private void RefreshData()
    239.                 {
    240.                         if ( PageChange != null )
    241.                                 PageChange( this, new PageControlEventArgs( PageSize, CurrentIndex ) );
    243.                         this.RefreshText();
    244.                 }
    245.                 /// <summary>
    246.                 /// 页长改变
    247.                 /// </summary>
    248.                 /// <param name="sender"></param>
    249.                 /// <param name="e"></param>
    250.                 private void txtPageSize_TextChanged( object sender, EventArgs e )
    251.                 {
    252.                         if ( !String.IsNullOrEmpty( txtPageSize.Text ) )
    253.                         {
    254.                                 int ps = 0;
    255.                                 if ( int.TryParse( txtPageSize.Text, out ps ) )
    256.                                 {
    257.                                         PageSize = ps;
    258.                                 }
    259.                         }
    260.                 }
    261.                 /// <summary>
    262.                 /// 改变页长
    263.                 /// </summary>
    264.                 /// <param name="sender"></param>
    265.                 /// <param name="e"></param>
    266.                 private void lblShow_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
    267.                 {
    268.                         this.RefreshData();
    269.                 }
    270.         }
    271.         /// <summary>
    272.         /// 翻页事件
    273.         /// </summary>
    274.         /// <param name="Sender">事件调用者</param>
    275.         /// <param name="PageSize">页长</param>
    276.         /// <param name="PageIndex">页码</param>
    277.         public delegate void PageControlEventHandler( object Sender, PageControlEventArgs e );
    278.         /// <summary>
    279.         /// 翻页事件参数
    280.         /// </summary>
    281.         public class PageControlEventArgs : EventArgs
    282.         {
    283.                 /// <summary>
    284.                 /// 页长
    285.                 /// </summary>
    286.                 public int PageSize = 0;
    287.                 /// <summary>
    288.                 /// 页码
    289.                 /// </summary>
    290.                 public int CurrentIndex = 0;
    291.                 /// <summary>
    292.                 /// 构造函数
    293.                 /// </summary>
    294.                 /// <param name="PageSize"></param>
    295.                 /// <param name="PageIndex"></param>
    296.                 public PageControlEventArgs( int PageSize, int PageIndex )
    297.                 {
    298.                         this.PageSize = PageSize;
    299.                         this.CurrentIndex = PageIndex;
    300.                 }
    301.         }
    302. }

    PageControl.Designer.cs类

     

    1. namespace xYuanShian.ControlLibrary
    2. {
    3.         partial class PageControl
    4.         {
    5.                 /// <summary>
    6.                 /// 必需的设计器变量。
    7.                 /// </summary>
    8.                 private System.ComponentModel.IContainer components = null;
    10.                 /// <summary>
    11.                 /// 清理所有正在使用的资源。
    12.                 /// </summary>
    13.                 /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
    14.                 protected override void Dispose( bool disposing )
    15.                 {
    16.                         if ( disposing && ( components != null ) )
    17.                         {
    18.                                 components.Dispose();
    19.                         }
    20.                         base.Dispose( disposing );
    21.                 }
    22.  
    23.                 #region 组件设计器生成的代码
    25.                 /// <summary>
    26.                 /// 设计器支持所需的方法 - 不要
    27.                 /// 使用代码编辑器修改此方法的内容。
    28.                 /// </summary>
    29.                 private void InitializeComponent()
    30.                 {
    31.                         this.lblfPage = new System.Windows.Forms.LinkLabel();
    32.                         this.lblpPage = new System.Windows.Forms.LinkLabel();
    33.                         this.lblnPage = new System.Windows.Forms.LinkLabel();
    34.                         this.lbllPage = new System.Windows.Forms.LinkLabel();
    35.                         this.tbxGo = new System.Windows.Forms.TextBox();
    36.                         this.lblGo = new System.Windows.Forms.LinkLabel();
    37.                         this.txtPageSize = new System.Windows.Forms.TextBox();
    38.                         this.label6 = new System.Windows.Forms.Label();
    39.                         this.lblCustomInfo = new System.Windows.Forms.Label();
    40.                         this.lblShow = new System.Windows.Forms.LinkLabel();
    41.                         this.SuspendLayout();
    42.                         // 
    43.                         // lblfPage
    44.                         // 
    45.                         this.lblfPage.AutoSize = true;
    46.                         this.lblfPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
    47.                         this.lblfPage.LinkColor = System.Drawing.Color.Black;
    48.                         this.lblfPage.Location = new System.Drawing.Point( 6, 10 );
    49.                         this.lblfPage.Name = "lblfPage";
    50.                         this.lblfPage.Size = new System.Drawing.Size( 29, 12 );
    51.                         this.lblfPage.TabIndex = 0;
    52.                         this.lblfPage.TabStop = true;
    53.                         this.lblfPage.Text = "首页";
    54.                         this.lblfPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblfPage_LinkClicked );
    55.                         // 
    56.                         // lblpPage
    57.                         // 
    58.                         this.lblpPage.AutoSize = true;
    59.                         this.lblpPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
    60.                         this.lblpPage.LinkColor = System.Drawing.Color.Black;
    61.                         this.lblpPage.Location = new System.Drawing.Point( 41, 10 );
    62.                         this.lblpPage.Name = "lblpPage";
    63.                         this.lblpPage.Size = new System.Drawing.Size( 29, 12 );
    64.                         this.lblpPage.TabIndex = 1;
    65.                         this.lblpPage.TabStop = true;
    66.                         this.lblpPage.Text = "上页";
    67.                         this.lblpPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblpPage_LinkClicked );
    68.                         // 
    69.                         // lblnPage
    70.                         // 
    71.                         this.lblnPage.AutoSize = true;
    72.                         this.lblnPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
    73.                         this.lblnPage.LinkColor = System.Drawing.Color.Black;
    74.                         this.lblnPage.Location = new System.Drawing.Point( 76, 10 );
    75.                         this.lblnPage.Name = "lblnPage";
    76.                         this.lblnPage.Size = new System.Drawing.Size( 29, 12 );
    77.                         this.lblnPage.TabIndex = 2;
    78.                         this.lblnPage.TabStop = true;
    79.                         this.lblnPage.Text = "下页";
    80.                         this.lblnPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblnPage_LinkClicked );
    81.                         // 
    82.                         // lbllPage
    83.                         // 
    84.                         this.lbllPage.AutoSize = true;
    85.                         this.lbllPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
    86.                         this.lbllPage.LinkColor = System.Drawing.Color.Black;
    87.                         this.lbllPage.Location = new System.Drawing.Point( 111, 10 );
    88.                         this.lbllPage.Name = "lbllPage";
    89.                         this.lbllPage.Size = new System.Drawing.Size( 29, 12 );
    90.                         this.lbllPage.TabIndex = 3;
    91.                         this.lbllPage.TabStop = true;
    92.                         this.lbllPage.Text = "末页";
    93.                         this.lbllPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lbllPage_LinkClicked );
    94.                         // 
    95.                         // tbxGo
    96.                         // 
    97.                         this.tbxGo.Location = new System.Drawing.Point( 326, 7 );
    98.                         this.tbxGo.Name = "tbxGo";
    99.                         this.tbxGo.Size = new System.Drawing.Size( 39, 21 );
    100.                         this.tbxGo.TabIndex = 5;
    101.                         // 
    102.                         // lblGo
    103.                         // 
    104.                         this.lblGo.AutoSize = true;
    105.                         this.lblGo.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
    106.                         this.lblGo.LinkColor = System.Drawing.Color.Black;
    107.                         this.lblGo.Location = new System.Drawing.Point( 371, 10 );
    108.                         this.lblGo.Name = "lblGo";
    109.                         this.lblGo.Size = new System.Drawing.Size( 29, 12 );
    110.                         this.lblGo.TabIndex = 6;
    111.                         this.lblGo.TabStop = true;
    112.                         this.lblGo.Text = "跳转";
    113.                         this.lblGo.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblGo_LinkClicked );
    114.                         // 
    115.                         // txtPageSize
    116.                         // 
    117.                         this.txtPageSize.Location = new System.Drawing.Point( 234, 7 );
    118.                         this.txtPageSize.Name = "txtPageSize";
    119.                         this.txtPageSize.Size = new System.Drawing.Size( 40, 21 );
    120.                         this.txtPageSize.TabIndex = 15;
    121.                         this.txtPageSize.TextChanged += new System.EventHandler( this.txtPageSize_TextChanged );
    122.                         // 
    123.                         // label6
    124.                         // 
    125.                         this.label6.AutoSize = true;
    126.                         this.label6.Location = new System.Drawing.Point( 146, 11 );
    127.                         this.label6.Name = "label6";
    128.                         this.label6.Size = new System.Drawing.Size( 89, 12 );
    129.                         this.label6.TabIndex = 14;
    130.                         this.label6.Text = "每页显示记录数";
    131.                         // 
    132.                         // lblCustomInfo
    133.                         // 
    134.                         this.lblCustomInfo.AutoSize = true;
    135.                         this.lblCustomInfo.Location = new System.Drawing.Point( 406, 10 );
    136.                         this.lblCustomInfo.Name = "lblCustomInfo";
    137.                         this.lblCustomInfo.Size = new System.Drawing.Size( 35, 12 );
    138.                         this.lblCustomInfo.TabIndex = 16;
    139.                         this.lblCustomInfo.Text = "第1页";
    140.                         // 
    141.                         // lblShow
    142.                         // 
    143.                         this.lblShow.AutoSize = true;
    144.                         this.lblShow.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
    145.                         this.lblShow.LinkColor = System.Drawing.Color.Black;
    146.                         this.lblShow.Location = new System.Drawing.Point( 278, 11 );
    147.                         this.lblShow.Name = "lblShow";
    148.                         this.lblShow.Size = new System.Drawing.Size( 29, 12 );
    149.                         this.lblShow.TabIndex = 17;
    150.                         this.lblShow.TabStop = true;
    151.                         this.lblShow.Text = "显示";
    152.                         this.lblShow.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblShow_LinkClicked );
    153.                         // 
    154.                         // PageControl
    155.                         // 
    156.                         this.AutoScaleDimensions = new System.Drawing.SizeF( 6F, 12F );
    157.                         this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
    158.                         this.Controls.Add( this.lblShow );
    159.                         this.Controls.Add( this.lblCustomInfo );
    160.                         this.Controls.Add( this.txtPageSize );
    161.                         this.Controls.Add( this.label6 );
    162.                         this.Controls.Add( this.lblGo );
    163.                         this.Controls.Add( this.tbxGo );
    164.                         this.Controls.Add( this.lbllPage );
    165.                         this.Controls.Add( this.lblnPage );
    166.                         this.Controls.Add( this.lblpPage );
    167.                         this.Controls.Add( this.lblfPage );
    168.                         this.Name = "PageControl";
    169.                         this.Size = new System.Drawing.Size( 553, 30 );
    170.                         this.ResumeLayout( false );
    171.                         this.PerformLayout();
    173.                 }
    174.  
    175.                 #endregion
    177.                 private System.Windows.Forms.LinkLabel lblfPage;
    178.                 private System.Windows.Forms.LinkLabel lblpPage;
    179.                 private System.Windows.Forms.LinkLabel lblnPage;
    180.                 private System.Windows.Forms.LinkLabel lbllPage;
    181.                 private System.Windows.Forms.TextBox tbxGo;
    182.                 private System.Windows.Forms.LinkLabel lblGo;
    183.                 private System.Windows.Forms.TextBox txtPageSize;
    184.                 private System.Windows.Forms.Label label6;
    185.                 private System.Windows.Forms.Label lblCustomInfo;
    186.                 private System.Windows.Forms.LinkLabel lblShow;
    187.         }
    188. }

    使用方法

    1.                 private void test()
    2.                 {
    3.                         PageControl pageControl1 = new PageControl();
    4.                         pageControl1.Init( 总记录数, 页长 );          // 或者用下面的方式
    5.                         pageControl1.RecordCount = 设置记录数;
    6.                         pageControl1.PageSize = 页长;
    7.                         pageControl1.PageChange += new PageControlEventHandler( myDataBinder );
    8.                 }
    10.                 private void myDataBinder(object Sender, PageControlEventArgs e)
    11.                 {
    12.                         //绑定数据源操作 e.CurrentIndex, e.PageSize
    13.                 }
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  • 原文地址：https://www.cnblogs.com/rr163/p/3955938.html
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