winform分页控件 附源码下载

namespace WindowsApp.MyControl{  /**//// <summary>  /// 申明委托  /// </summary>  /// <param name="e"></param>  /// <returns></returns>  public delegate int EventPagingHandler(EventPagingArg e);  /**//// <summary>  /// 分页控件呈现  /// </summary>  public partial class Pager : UserControl  {    public Pager()    {      InitializeComponent();    }    public event EventPagingHandler EventPaging;    /**//// <summary>    /// 每页显示记录数    /// </summary>    private int _pageSize = 20;    /**//// <summary>    /// 每页显示记录数    /// </summary>    public int PageSize    {      get { return _pageSize; }      set      {        _pageSize = value;        GetPageCount();      }    }    private int _nMax = 0;    /**//// <summary>    /// 总记录数    /// </summary>    public int NMax    {      get { return _nMax; }      set      {        _nMax = value;        GetPageCount();      }    }    private int _pageCount = 0;    /**//// <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 = 0;    /**//// <summary>    /// 当前页号    /// </summary>    public int PageCurrent    {      get { return _pageCurrent; }      set { _pageCurrent = value; }    }    private void GetPageCount()    {      if (this.NMax > 0)      {        this.PageCount = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(this.NMax) / Convert.ToDouble(this.PageSize)));      }      else      {        this.PageCount = 0;      }    }    /**//// <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 == 1)      {        this.PageCurrent = 1;      }      lblPageCount.Text = this.PageCount.ToString();      this.lblMaxPage.Text = "共"+this.NMax.ToString()+"条记录";      this.txtCurrentPage.Text = this.PageCurrent.ToString();      if (this.PageCurrent == 1)      {        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 == 0)      {        btnNext.Enabled = false;        btnLast.Enabled = false;        btnFirst.Enabled = false;        btnPrev.Enabled = false;      }    }    private void btnFirst_Click(object sender, EventArgs e)    {      PageCurrent = 1;      this.Bind();    }    private void btnPrev_Click(object sender, EventArgs e)    {      PageCurrent -= 1;      if (PageCurrent <= 0)      {        PageCurrent = 1;      }      this.Bind();    }    private void btnNext_Click(object sender, EventArgs e)    {      this.PageCurrent += 1;      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        {          Common.MessageProcess.ShowError("输入数字格式错误！");        }      }    }  }  /**//// <summary>  /// 自定义事件数据基类  /// </summary>  public class EventPagingArg : EventArgs  {    private int _intPageIndex;    public EventPagingArg(int PageIndex)    {      _intPageIndex = PageIndex;    }  }}

ALTER  PROCEDURE SP_Pagination/**//****************************************************************** 千万数量级分页存储过程 *****************************************************************参数说明:1.Tables :表名称,视图2.PrimaryKey :主关键字3.Sort :排序语句，不带Order By 比如：NewsID Desc,OrderRows Asc4.CurrentPage :当前页码5.PageSize :分页尺寸6.Filter :过滤语句，不带Where 7.Group :Group语句,不带Group By效果演示：http://www.cn5135.com/_App/Enterprise/QueryResult.aspx***************************************************************/(@Tables varchar(2000),@PrimaryKey varchar(500),@Sort varchar(500) = NULL,@CurrentPage int = 1,@PageSize int = 10,@Fields varchar(2000) = '*',@Filter varchar(1000) = NULL,@Group varchar(1000) = NULL)AS/**//*默认排序*/IF @Sort IS NULL OR @Sort = ''SET @Sort = @PrimaryKeyDECLARE @SortTable varchar(1000)DECLARE @SortName varchar(1000)DECLARE @strSortColumn varchar(1000)DECLARE @operator char(2)DECLARE @type varchar(1000)DECLARE @prec int/**//*设定排序语句.*/IF CHARINDEX('DESC',@Sort)>0BEGINSET @strSortColumn = REPLACE(@Sort, 'DESC', '')SET @operator = '<='ENDELSEBEGINIF CHARINDEX('ASC', @Sort) = 0SET @strSortColumn = REPLACE(@Sort, 'ASC', '')SET @operator = '>='ENDIF CHARINDEX('.', @strSortColumn) > 0BEGINSET @SortTable = SUBSTRING(@strSortColumn, 0, CHARINDEX('.',@strSortColumn))SET @SortName = SUBSTRING(@strSortColumn, CHARINDEX('.',@strSortColumn) + 1, LEN(@strSortColumn))ENDELSEBEGINSET @SortTable = @TablesSET @SortName = @strSortColumnENDSELECT @type=t.name, @prec=c.precFROM sysobjects o JOIN syscolumns c on o.id=c.idJOIN systypes t on c.xusertype=t.xusertypeWHERE o.name = @SortTable AND c.name = @SortNameIF CHARINDEX('char', @type) > 0SET @type = @type + '(' + CAST(@prec AS varchar) + ')'DECLARE @strPageSize varchar(500)DECLARE @strStartRow varchar(500)DECLARE @strFilter varchar(1000)DECLARE @strSimpleFilter varchar(1000)DECLARE @strGroup varchar(1000)/**//*默认当前页*/IF @CurrentPage < 1SET @CurrentPage = 1/**//*设置分页参数.*/SET @strPageSize = CAST(@PageSize AS varchar(500))SET @strStartRow = CAST(((@CurrentPage - 1)*@PageSize + 1) AS varchar(500))/**//*筛选以及分组语句.*/IF @Filter IS NOT NULL AND @Filter != ''BEGINSET @strFilter = ' WHERE ' + @Filter + ' 'SET @strSimpleFilter = ' AND ' + @Filter + ' 'ENDELSEBEGINSET @strSimpleFilter = ''SET @strFilter = ''ENDIF @Group IS NOT NULL AND @Group != ''SET @strGroup = ' GROUP BY ' + @Group + ' 'ELSESET @strGroup = ''/**//*执行查询语句*/EXEC('DECLARE @SortColumn ' + @type + 'SET ROWCOUNT ' + @strStartRow + 'SELECT @SortColumn=' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + 'SET ROWCOUNT ' + @strPageSize + 'SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '')

/**//// <summary>  /// 数据源提供  /// </summary>  public class PageData  {    private int _PageSize = 10;    private int _PageIndex = 1;    private int _PageCount = 0;    private int _TotalCount = 0;    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>    /// 总页数    /// </summary>    public int PageCount    {      get      {        return _PageCount;      }    }    /**//// <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;      }    }    /**//// <summary>    /// 查询条件    /// </summary>    public string QueryCondition    {      get      {        return _QueryCondition;      }      set      {        _QueryCondition = value;      }    }    /**//// <summary>    /// 主键    /// </summary>    public string PrimaryKey    {      get {        return _PrimaryKey;      }      set {        _PrimaryKey = value;      }    }    public DataSet QueryDataTable()    {      SqlParameter[] parameters = {          new SqlParameter("@Tables", SqlDbType.VarChar, 255),          new SqlParameter("@PrimaryKey" , SqlDbType.VarChar , 255),            new SqlParameter("@Sort", SqlDbType.VarChar , 255 ),          new SqlParameter("@CurrentPage", SqlDbType.Int),          new SqlParameter("@PageSize", SqlDbType.Int),                            new SqlParameter("@Fields", SqlDbType.VarChar, 255),          new SqlParameter("@Filter", SqlDbType.VarChar,1000),          new SqlParameter("@Group" ,SqlDbType.VarChar , 1000 )          };      parameters[0].Value = _TableName;      parameters[1].Value = _PrimaryKey;      parameters[2].Value = _OrderStr;      parameters[3].Value = PageIndex;      parameters[4].Value = PageSize;      parameters[5].Value =_QueryFieldName;      parameters[6].Value = _QueryCondition;      parameters[7].Value = string.Empty;      DataSet ds = DbHelperSQL.RunProcedure("SP_Pagination", parameters, "dd");      _TotalCount = GetTotalCount();      if (_TotalCount == 0)      {        _PageIndex = 0;        _PageCount = 0;      }      else      {        _PageCount = _TotalCount % _PageSize == 0 ? _TotalCount / _PageSize : _TotalCount / _PageSize + 1;        if (_PageIndex > _PageCount)        {          _PageIndex = _PageCount;          parameters[4].Value = _PageSize;          ds = QueryDataTable();        }      }      return ds;    }    public int GetTotalCount()    {      string strSql = " select count(1) from "+_TableName;      if (_QueryCondition != string.Empty)      {        strSql +=" where " + _QueryCondition;      }      return int.Parse(DbHelperSQL.GetSingle(strSql).ToString());    }  }

private void ReceiveOrderJLForm_Load(object sender, EventArgs e)    {      this.pager1.PageCurrent = 1;      this.pager1.Bind();    }    private int dgvBind()    {      WindowsApp.MyControl.PageData pageData = new WindowsApp.MyControl.PageData();      pageData.TableName = "T_ReceiveOrder";      pageData.PrimaryKey = "ReceiveOrderID";      pageData.OrderStr = "ReceiveOrderID desc";      pageData.PageIndex = this.pager1.PageCurrent;      pageData.PageSize = this.pager1.PageSize;      pageData.QueryCondition = _strSql + strWhere.ToString();      pageData.QueryFieldName = "*";      this.pager1.bindingSource.DataSource = pageData.QueryDataTable().Tables[0];      this.pager1.bindingNavigator.BindingSource = pager1.bindingSource;      dgvReceiveOrder.AutoGenerateColumns = false;      dgvReceiveOrder.DataSource = this.pager1.bindingSource;      return pageData.TotalCount;    }    private int pager1_EventPaging(WindowsApp.MyControl.EventPagingArg e)    {      return dgvBind();    }