自己写的一个分页控件类(WinForm)

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
namespace xYuanShian.ControlLibrary
{
/// <summary>
/// 翻页控件
/// </summary>
public partial class PageControl : UserControl
{
#region 私有成员
/// <summary>
/// 页长
/// </summary>
private int _PageSize = 50;
/// <summary>
/// 总记录数
/// </summary>
private int _RecordCount = 0;
/// <summary>
/// 当前页码
/// </summary>
private int _PageIndex = 1;
/// <summary>
/// 获取或设置页数量
/// </summary>
private int PageCount { get; set; }
/// <summary>
/// 获取或设置跳转页面
/// </summary>
private int GoIndex { get; set; }
#endregion 私有成员
#region 公有成员
/// <summary>
/// 获取或设置页显示数量
/// </summary>
public int PageSize
{
get { return _PageSize; }
set
{
if ( value <= 0 )
{
MessageBox.Show( "页码不正确!", "错误！" );
}
else
{
_PageSize = value;
this.SetPageCountValue();
}
}
}
/// <summary>
/// 获取或设置数据总条数
/// </summary>
public int RecordCount
{
get { return _RecordCount; }
set
{
_RecordCount = value;
this.SetPageCountValue();
}
}
/// <summary>
/// 获取页码
/// </summary>
public int CurrentIndex { get { return _PageIndex; } }
/// <summary>
/// 翻页事件
/// </summary>
public event PageControlEventHandler PageChange;
#endregion 公有成员
/// <summary>
/// 构造函数
/// </summary>
public PageControl()
{
InitializeComponent();
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="RecordCount">总记录数</param>
public void Init( int RecordCount, int pageSize )
{
/// 数据条数
_RecordCount = RecordCount;
/// 页长
_PageSize = pageSize;
//跳转页码
GoIndex = 0;
SetPageCountValue();
RefreshData();
}
/// <summary>
/// 刷新控件的显示
/// </summary>
public void RefreshText()
{
lblCustomInfo.Text = "第 " + CurrentIndex.ToString() + " 页／共 " + PageCount.ToString() + " 页";
txtPageSize.Text = _PageSize.ToString();
#region 设置按钮状态
if ( PageCount == 1 )
{
lbllPage.Enabled = false;
lblnPage.Enabled = false;
lblpPage.Enabled = false;
lblfPage.Enabled = false;
}
else if ( _PageIndex >= PageCount )
{
lblnPage.Enabled = false;
lbllPage.Enabled = false;
lblpPage.Enabled = true;
lblfPage.Enabled = true;
}
else if ( _PageIndex <= 1 )
{
lblnPage.Enabled = true;
lbllPage.Enabled = true;
lblpPage.Enabled = false;
lblfPage.Enabled = false;
}
else
{
lbllPage.Enabled = true;
lblnPage.Enabled = true;
lblpPage.Enabled = true;
lblfPage.Enabled = true;
}
#endregion 设置按钮状态
}
/// <summary>
/// 设置各种值
/// </summary>
private void SetPageCountValue()
{
/// 页总数
PageCount = ( _RecordCount / _PageSize ) + 1;
/// 如果总数刚才被页长整除，则页码减1
if ( _RecordCount % _PageSize == 0 ) PageCount--;
/// 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
if ( _PageIndex > PageCount )
_PageIndex = PageCount;
else if ( _PageIndex <= 0 )
_PageIndex = 1;
}
/// <summary>
/// 翻到首页
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lblfPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
{
//第一页
this.JumpPage( 1 );
}
/// <summary>
/// 上一页
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lblpPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
{
//上一页
this.JumpPage( _PageIndex - 1 );
}
/// <summary>
/// 下一页
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lblnPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
{
//下一页
this.JumpPage( _PageIndex + 1 );
}
/// <summary>
/// 末页
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lbllPage_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
{
//最后页
this.JumpPage( PageCount );
}
/// <summary>
/// 跳转
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lblGo_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
{
//跳转
int gpi = 0;
if ( String.IsNullOrEmpty( tbxGo.Text ) || !int.TryParse( tbxGo.Text, out gpi ) )
{
tbxGo.Text = "";
MessageBox.Show( "目标页码不正确！", "错误" );
return;
}
this.JumpPage( gpi );
}
/// <summary>
/// 翻页
/// </summary>
/// <param name="pIndex">目标页码</param>
private void JumpPage( int pIndex )
{
_PageIndex = pIndex;
if ( _PageIndex <= 0 )
_PageIndex = 1;
else if ( _PageIndex > PageCount )
_PageIndex = PageCount;
/// 更新外观，以及调用数据
RefreshData();
}
/// <summary>
/// 刷新文本
/// </summary>
private void RefreshData()
{
if ( PageChange != null )
PageChange( this, new PageControlEventArgs( PageSize, CurrentIndex ) );
this.RefreshText();
}
/// <summary>
/// 页长改变
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void txtPageSize_TextChanged( object sender, EventArgs e )
{
if ( !String.IsNullOrEmpty( txtPageSize.Text ) )
{
int ps = 0;
if ( int.TryParse( txtPageSize.Text, out ps ) )
{
PageSize = ps;
}
}
}
/// <summary>
/// 改变页长
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lblShow_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
{
this.RefreshData();
}
}
/// <summary>
/// 翻页事件
/// </summary>
/// <param name="Sender">事件调用者</param>
/// <param name="PageSize">页长</param>
/// <param name="PageIndex">页码</param>
public delegate void PageControlEventHandler( object Sender, PageControlEventArgs e );
/// <summary>
/// 翻页事件参数
/// </summary>
public class PageControlEventArgs : EventArgs
{
/// <summary>
/// 页长
/// </summary>
public int PageSize = 0;
/// <summary>
/// 页码
/// </summary>
public int CurrentIndex = 0;
/// <summary>
/// 构造函数
/// </summary>
/// <param name="PageSize"></param>
/// <param name="PageIndex"></param>
public PageControlEventArgs( int PageSize, int PageIndex )
{
this.PageSize = PageSize;
this.CurrentIndex = PageIndex;
}
}
}

PageControl.Designer.cs类

namespace xYuanShian.ControlLibrary
{
partial class PageControl
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose( bool disposing )
{
if ( disposing && ( components != null ) )
{
components.Dispose();
}
base.Dispose( disposing );
}
#region 组件设计器生成的代码
/// <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.lblfPage = new System.Windows.Forms.LinkLabel();
this.lblpPage = new System.Windows.Forms.LinkLabel();
this.lblnPage = new System.Windows.Forms.LinkLabel();
this.lbllPage = new System.Windows.Forms.LinkLabel();
this.tbxGo = new System.Windows.Forms.TextBox();
this.lblGo = new System.Windows.Forms.LinkLabel();
this.txtPageSize = new System.Windows.Forms.TextBox();
this.label6 = new System.Windows.Forms.Label();
this.lblCustomInfo = new System.Windows.Forms.Label();
this.lblShow = new System.Windows.Forms.LinkLabel();
this.SuspendLayout();
//
// lblfPage
//
this.lblfPage.AutoSize = true;
this.lblfPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
this.lblfPage.LinkColor = System.Drawing.Color.Black;
this.lblfPage.Location = new System.Drawing.Point( 6, 10 );
this.lblfPage.Name = "lblfPage";
this.lblfPage.Size = new System.Drawing.Size( 29, 12 );
this.lblfPage.TabIndex = 0;
this.lblfPage.TabStop = true;
this.lblfPage.Text = "首页";
this.lblfPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblfPage_LinkClicked );
//
// lblpPage
//
this.lblpPage.AutoSize = true;
this.lblpPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
this.lblpPage.LinkColor = System.Drawing.Color.Black;
this.lblpPage.Location = new System.Drawing.Point( 41, 10 );
this.lblpPage.Name = "lblpPage";
this.lblpPage.Size = new System.Drawing.Size( 29, 12 );
this.lblpPage.TabIndex = 1;
this.lblpPage.TabStop = true;
this.lblpPage.Text = "上页";
this.lblpPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblpPage_LinkClicked );
//
// lblnPage
//
this.lblnPage.AutoSize = true;
this.lblnPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
this.lblnPage.LinkColor = System.Drawing.Color.Black;
this.lblnPage.Location = new System.Drawing.Point( 76, 10 );
this.lblnPage.Name = "lblnPage";
this.lblnPage.Size = new System.Drawing.Size( 29, 12 );
this.lblnPage.TabIndex = 2;
this.lblnPage.TabStop = true;
this.lblnPage.Text = "下页";
this.lblnPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblnPage_LinkClicked );
//
// lbllPage
//
this.lbllPage.AutoSize = true;
this.lbllPage.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
this.lbllPage.LinkColor = System.Drawing.Color.Black;
this.lbllPage.Location = new System.Drawing.Point( 111, 10 );
this.lbllPage.Name = "lbllPage";
this.lbllPage.Size = new System.Drawing.Size( 29, 12 );
this.lbllPage.TabIndex = 3;
this.lbllPage.TabStop = true;
this.lbllPage.Text = "末页";
this.lbllPage.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lbllPage_LinkClicked );
//
// tbxGo
//
this.tbxGo.Location = new System.Drawing.Point( 326, 7 );
this.tbxGo.Name = "tbxGo";
this.tbxGo.Size = new System.Drawing.Size( 39, 21 );
this.tbxGo.TabIndex = 5;
//
// lblGo
//
this.lblGo.AutoSize = true;
this.lblGo.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
this.lblGo.LinkColor = System.Drawing.Color.Black;
this.lblGo.Location = new System.Drawing.Point( 371, 10 );
this.lblGo.Name = "lblGo";
this.lblGo.Size = new System.Drawing.Size( 29, 12 );
this.lblGo.TabIndex = 6;
this.lblGo.TabStop = true;
this.lblGo.Text = "跳转";
this.lblGo.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblGo_LinkClicked );
//
// txtPageSize
//
this.txtPageSize.Location = new System.Drawing.Point( 234, 7 );
this.txtPageSize.Name = "txtPageSize";
this.txtPageSize.Size = new System.Drawing.Size( 40, 21 );
this.txtPageSize.TabIndex = 15;
this.txtPageSize.TextChanged += new System.EventHandler( this.txtPageSize_TextChanged );
//
// label6
//
this.label6.AutoSize = true;
this.label6.Location = new System.Drawing.Point( 146, 11 );
this.label6.Name = "label6";
this.label6.Size = new System.Drawing.Size( 89, 12 );
this.label6.TabIndex = 14;
this.label6.Text = "每页显示记录数";
//
// lblCustomInfo
//
this.lblCustomInfo.AutoSize = true;
this.lblCustomInfo.Location = new System.Drawing.Point( 406, 10 );
this.lblCustomInfo.Name = "lblCustomInfo";
this.lblCustomInfo.Size = new System.Drawing.Size( 35, 12 );
this.lblCustomInfo.TabIndex = 16;
this.lblCustomInfo.Text = "第1页";
//
// lblShow
//
this.lblShow.AutoSize = true;
this.lblShow.Font = new System.Drawing.Font( "宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ( ( byte )( 134 ) ) );
this.lblShow.LinkColor = System.Drawing.Color.Black;
this.lblShow.Location = new System.Drawing.Point( 278, 11 );
this.lblShow.Name = "lblShow";
this.lblShow.Size = new System.Drawing.Size( 29, 12 );
this.lblShow.TabIndex = 17;
this.lblShow.TabStop = true;
this.lblShow.Text = "显示";
this.lblShow.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler( this.lblShow_LinkClicked );
//
// PageControl
//
this.AutoScaleDimensions = new System.Drawing.SizeF( 6F, 12F );
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Controls.Add( this.lblShow );
this.Controls.Add( this.lblCustomInfo );
this.Controls.Add( this.txtPageSize );
this.Controls.Add( this.label6 );
this.Controls.Add( this.lblGo );
this.Controls.Add( this.tbxGo );
this.Controls.Add( this.lbllPage );
this.Controls.Add( this.lblnPage );
this.Controls.Add( this.lblpPage );
this.Controls.Add( this.lblfPage );
this.Name = "PageControl";
this.Size = new System.Drawing.Size( 553, 30 );
this.ResumeLayout( false );
this.PerformLayout();
}
#endregion
private System.Windows.Forms.LinkLabel lblfPage;
private System.Windows.Forms.LinkLabel lblpPage;
private System.Windows.Forms.LinkLabel lblnPage;
private System.Windows.Forms.LinkLabel lbllPage;
private System.Windows.Forms.TextBox tbxGo;
private System.Windows.Forms.LinkLabel lblGo;
private System.Windows.Forms.TextBox txtPageSize;
private System.Windows.Forms.Label label6;
private System.Windows.Forms.Label lblCustomInfo;
private System.Windows.Forms.LinkLabel lblShow;
}
}