1.图列展示

2.分页控件代码

Paging.Designer.cs

 partial class Paging
{
/// <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.components = new System.ComponentModel.Container();
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Paging));
this.bindingNavigator = new System.Windows.Forms.BindingNavigator(this.components);
this.btnFirst = new System.Windows.Forms.ToolStripButton();
this.btnPrev = new System.Windows.Forms.ToolStripButton();
this.btnNext = new System.Windows.Forms.ToolStripButton();
this.btnLast = new System.Windows.Forms.ToolStripButton();
this.toolStripLabel6 = new System.Windows.Forms.ToolStripLabel();
this.toolStripLabel4 = new System.Windows.Forms.ToolStripLabel();
this.txtCurrentPage = new System.Windows.Forms.ToolStripTextBox();
this.toolStripLabel1 = new System.Windows.Forms.ToolStripLabel();
this.btnGo = new System.Windows.Forms.ToolStripButton();
this.toolStripLabel5 = new System.Windows.Forms.ToolStripLabel();
this.toolStripLabel2 = new System.Windows.Forms.ToolStripLabel();
this.lblPageCount = new System.Windows.Forms.ToolStripLabel();
this.toolStripLabel3 = new System.Windows.Forms.ToolStripLabel();
this.lblMaxPage = new System.Windows.Forms.ToolStripLabel();
((System.ComponentModel.ISupportInitialize)(this.bindingNavigator)).BeginInit();
this.bindingNavigator.SuspendLayout();
this.SuspendLayout();
//
// bindingNavigator
//
this.bindingNavigator.AddNewItem = null;
this.bindingNavigator.CountItem = null;
this.bindingNavigator.DeleteItem = null;
this.bindingNavigator.Dock = System.Windows.Forms.DockStyle.Bottom;
this.bindingNavigator.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.btnFirst,
this.btnPrev,
this.btnNext,
this.btnLast,
this.toolStripLabel6,
this.toolStripLabel4,
this.txtCurrentPage,
this.toolStripLabel1,
this.btnGo,
this.toolStripLabel5,
this.toolStripLabel2,
this.lblPageCount,
this.toolStripLabel3,
this.lblMaxPage});
this.bindingNavigator.Location = new System.Drawing.Point(, );
this.bindingNavigator.MoveFirstItem = null;
this.bindingNavigator.MoveLastItem = null;
this.bindingNavigator.MoveNextItem = null;
this.bindingNavigator.MovePreviousItem = null;
this.bindingNavigator.Name = "bindingNavigator";
this.bindingNavigator.PositionItem = null;
this.bindingNavigator.RenderMode = System.Windows.Forms.ToolStripRenderMode.System;
this.bindingNavigator.Size = new System.Drawing.Size(, );
this.bindingNavigator.TabIndex = ;
this.bindingNavigator.Text = "bindingNavigator1";
//
// btnFirst
//
this.btnFirst.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.btnFirst.Image = ((System.Drawing.Image)(resources.GetObject("btnFirst.Image")));
this.btnFirst.ImageTransparentColor = System.Drawing.Color.Magenta;
this.btnFirst.Name = "btnFirst";
this.btnFirst.Size = new System.Drawing.Size(, );
this.btnFirst.Text = "首页";
this.btnFirst.Click += new System.EventHandler(this.btnFirst_Click);
//
// btnPrev
//
this.btnPrev.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.btnPrev.Image = ((System.Drawing.Image)(resources.GetObject("btnPrev.Image")));
this.btnPrev.ImageTransparentColor = System.Drawing.Color.Magenta;
this.btnPrev.Name = "btnPrev";
this.btnPrev.Size = new System.Drawing.Size(, );
this.btnPrev.Text = "上页";
this.btnPrev.Click += new System.EventHandler(this.btnPrev_Click);
//
// btnNext
//
this.btnNext.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.btnNext.Image = ((System.Drawing.Image)(resources.GetObject("btnNext.Image")));
this.btnNext.ImageTransparentColor = System.Drawing.Color.Magenta;
this.btnNext.Name = "btnNext";
this.btnNext.Size = new System.Drawing.Size(, );
this.btnNext.Text = "下页";
this.btnNext.Click += new System.EventHandler(this.btnNext_Click);
//
// btnLast
//
this.btnLast.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.btnLast.Image = ((System.Drawing.Image)(resources.GetObject("btnLast.Image")));
this.btnLast.ImageTransparentColor = System.Drawing.Color.Magenta;
this.btnLast.Name = "btnLast";
this.btnLast.Size = new System.Drawing.Size(, );
this.btnLast.Text = "未页";
this.btnLast.Click += new System.EventHandler(this.btnLast_Click);
//
// toolStripLabel6
//
this.toolStripLabel6.Name = "toolStripLabel6";
this.toolStripLabel6.Size = new System.Drawing.Size(, );
this.toolStripLabel6.Text = " ";
//
// toolStripLabel4
//
this.toolStripLabel4.Name = "toolStripLabel4";
this.toolStripLabel4.Size = new System.Drawing.Size(, );
this.toolStripLabel4.Text = "第";
//
// txtCurrentPage
//
this.txtCurrentPage.Name = "txtCurrentPage";
this.txtCurrentPage.Size = new System.Drawing.Size(, );
//
// toolStripLabel1
//
this.toolStripLabel1.Name = "toolStripLabel1";
this.toolStripLabel1.Size = new System.Drawing.Size(, );
this.toolStripLabel1.Text = "页";
//
// btnGo
//
this.btnGo.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text;
this.btnGo.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold);
this.btnGo.Image = ((System.Drawing.Image)(resources.GetObject("btnGo.Image")));
this.btnGo.ImageTransparentColor = System.Drawing.Color.Magenta;
this.btnGo.Name = "btnGo";
this.btnGo.Size = new System.Drawing.Size(, );
this.btnGo.Text = "GO";
this.btnGo.Click += new System.EventHandler(this.btnGo_Click);
//
// toolStripLabel5
//
this.toolStripLabel5.Name = "toolStripLabel5";
this.toolStripLabel5.Size = new System.Drawing.Size(, );
this.toolStripLabel5.Text = " ";
//
// toolStripLabel2
//
this.toolStripLabel2.Name = "toolStripLabel2";
this.toolStripLabel2.Size = new System.Drawing.Size(, );
this.toolStripLabel2.Text = "共";
//
// lblPageCount
//
this.lblPageCount.Name = "lblPageCount";
this.lblPageCount.Size = new System.Drawing.Size(, );
this.lblPageCount.Text = "lblPageCount";
//
// toolStripLabel3
//
this.toolStripLabel3.Name = "toolStripLabel3";
this.toolStripLabel3.Size = new System.Drawing.Size(, );
this.toolStripLabel3.Text = "页";
//
// lblMaxPage
//
this.lblMaxPage.Name = "lblMaxPage";
this.lblMaxPage.Size = new System.Drawing.Size(, );
this.lblMaxPage.Text = "lblMaxPage";
//
// Paging
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Controls.Add(this.bindingNavigator);
this.Name = "Paging";
this.Size = new System.Drawing.Size(, );
((System.ComponentModel.ISupportInitialize)(this.bindingNavigator)).EndInit();
this.bindingNavigator.ResumeLayout(false);
this.bindingNavigator.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout(); } #endregion public System.Windows.Forms.BindingNavigator bindingNavigator;
private System.Windows.Forms.ToolStripButton btnFirst;
private System.Windows.Forms.ToolStripButton btnPrev;
private System.Windows.Forms.ToolStripButton btnNext;
private System.Windows.Forms.ToolStripButton btnLast;
private System.Windows.Forms.ToolStripLabel toolStripLabel6;
private System.Windows.Forms.ToolStripLabel toolStripLabel4;
private System.Windows.Forms.ToolStripTextBox txtCurrentPage;
private System.Windows.Forms.ToolStripLabel toolStripLabel1;
private System.Windows.Forms.ToolStripButton btnGo;
private System.Windows.Forms.ToolStripLabel toolStripLabel5;
private System.Windows.Forms.ToolStripLabel toolStripLabel2;
private System.Windows.Forms.ToolStripLabel lblPageCount;
private System.Windows.Forms.ToolStripLabel toolStripLabel3;
private System.Windows.Forms.ToolStripLabel lblMaxPage;
}

Paging.cs

  /// <summary>
/// 申明委托
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
public delegate int EventPagingHandler(EventPagingArg e);
public partial class Paging : UserControl
{
public Paging()
{
InitializeComponent();
}
public event EventPagingHandler EventPaging;
/// <summary>
/// 每页显示记录数
/// </summary>
private int _pageSize = ;
/// <summary>
/// 每页显示记录数
/// </summary>
public int PageSize
{
get { return _pageSize; }
set
{
_pageSize = value;
GetPageCount();
}
} private int _nMax = ;
/// <summary>
/// 总记录数
/// </summary>
public int NMax
{
get { return _nMax; }
set
{
_nMax = value;
GetPageCount();
}
} private int _pageCount = ;
/// <summary>
/// 页数=总记录数/每页显示记录数
/// </summary>
public int PageCount
{
get { return _pageCount; }
set { _pageCount = value; }
} private int _pageCurrent = ;
/// <summary>
/// 当前页号
/// </summary>
public int PageCurrent
{
get { return _pageCurrent; }
set { _pageCurrent = value; }
}
private DataTable _dataSource;
/// <summary>
/// 数据源
/// </summary>
public DataTable DataSource
{
get { return _dataSource; }
set
{
_dataSource = value;
}
}
public BindingNavigator ToolBar
{
get { return this.bindingNavigator; }
}
private void GetPageCount()
{
if (this.NMax > )
{
this.PageCount = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(this.NMax) / Convert.ToDouble(this.PageSize)));
}
else
{
this.PageCount = ;
}
}
/// <summary>
/// 翻页控件数据绑定的方法
/// </summary>
public void Bind()
{
if (this.EventPaging != null)
{
this.NMax = this.EventPaging(new EventPagingArg(this.PageCurrent));
} if (this.PageCurrent > this.PageCount)
{
this.PageCurrent = this.PageCount;
}
if (this.PageCount == )
{
this.PageCurrent = ;
}
lblPageCount.Text = this.PageCount.ToString();
this.lblMaxPage.Text = "共" + this.NMax.ToString() + "条记录";
this.txtCurrentPage.Text = this.PageCurrent.ToString(); if (this.PageCurrent == )
{
this.btnPrev.Enabled = false;
this.btnFirst.Enabled = false;
}
else
{
btnPrev.Enabled = true;
btnFirst.Enabled = true;
} if (this.PageCurrent == this.PageCount)
{
this.btnLast.Enabled = false;
this.btnNext.Enabled = false;
}
else
{
btnLast.Enabled = true;
btnNext.Enabled = true;
} if (this.NMax == )
{
btnNext.Enabled = false;
btnLast.Enabled = false;
btnFirst.Enabled = false;
btnPrev.Enabled = false;
}
} private void btnFirst_Click(object sender, EventArgs e)
{
PageCurrent = ;
this.Bind();
} private void btnPrev_Click(object sender, EventArgs e)
{
PageCurrent -= ;
if (PageCurrent <= )
{
PageCurrent = ;
}
this.Bind();
} private void btnNext_Click(object sender, EventArgs e)
{
this.PageCurrent += ;
if (PageCurrent > PageCount)
{
PageCurrent = PageCount;
}
this.Bind();
} private void btnLast_Click(object sender, EventArgs e)
{
PageCurrent = PageCount;
this.Bind();
} private void btnGo_Click(object sender, EventArgs e)
{
if (this.txtCurrentPage.Text != null && txtCurrentPage.Text != "")
{
if (Int32.TryParse(txtCurrentPage.Text, out _pageCurrent))
{
this.Bind();
}
else
{
MessageBox.Show("输入数字格式错误!");
}
}
} private void txtCurrentPage_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
this.Bind();
}
} }
/// <summary>
/// 自定义事件数据基类
/// </summary>
public class EventPagingArg : EventArgs
{
private int _intPageIndex;
public EventPagingArg(int PageIndex)
{
_intPageIndex = PageIndex;
}
}

使用:
PagingHelper

 class PagingHelper
{ private int _PageSize = ;
private int _PageIndex = ;
private int _TotalCount = ;
private string _TableName;//表名
private string _QueryFieldName = "*";//表字段FieldStr
private string _OrderStr = string.Empty; //排序_SortStr
private string _QueryCondition = string.Empty;//查询的条件 RowFilter
private string _PrimaryKey = string.Empty;//主键 /// <summary>
/// 显示页数
/// </summary>
public int PageSize
{
get
{
return _PageSize; }
set
{
_PageSize = value;
}
}
/// <summary>
/// 当前页
/// </summary>
public int PageIndex
{
get
{
return _PageIndex;
}
set
{
_PageIndex = value;
}
} /// <summary>
/// 总记录数
/// </summary>
public int TotalCount
{
get
{
return _TotalCount;
}
}
/// <summary>
/// 表名,包括视图
/// </summary>
public string TableName
{
get
{
return _TableName;
}
set
{
_TableName = value;
}
}
/// <summary>
/// 表字段FieldStr
/// </summary>
public string QueryFieldName
{
get
{
return _QueryFieldName;
}
set
{
_QueryFieldName = value;
}
}
/// <summary>
/// 排序字段
/// </summary>
public string OrderStr
{
get
{
return _OrderStr;
}
set
{
_OrderStr = value;
}
}
public DataTable QueryDataTable()
{
//这里调用存储过程实现数据读取
//展示就用本地测试数据
DataTable dt = new DataTable();
dt.Columns.Add("ID", typeof(int));
dt.Columns.Add("Name", typeof(string));
_TotalCount = ; int index = PageIndex == ? : PageIndex * PageSize;
for (int i = index; i < index+PageSize; i++)
{
dt.Rows.Add(i, "Name" + i.ToString());
}
dt.AcceptChanges(); return dt;
}
}

测试页面调用:

 private void Form1_Load(object sender, EventArgs e)
{
this.paging1.PageCurrent = ;
this.paging1.Bind();
} private int paging1_EventPaging(EventPagingArg e)
{
return Bind(this.paging1.PageCurrent);
}
private int Bind(int pagecurrent)
{
PagingHelper phelper = new PagingHelper();
phelper.PageIndex = pagecurrent;
paging1.PageSize = ;
DataTable dt = phelper.QueryDataTable();
this.dataGridView1.DataSource = dt.DefaultView;
return phelper.TotalCount;
}

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