http://files.cnblogs.com/nosnowwolf/Pager.rar 控件下载
以前都是从事B/S开发，由于公司有个比较大的C/S项目，在使用DATAGRIDVIEW的时候，显示数据量比较大，所以才用分页模式，也不知道这样是否正确。
想找个C/S下面的分页控件，都没有什么好的，就自己跟B/S下的分页控件，修改成WINFORM下面的。
首先创建一个用户控件名称为pager,在控件中拖入bindingNavigator和bindingSource，修改bindingNavigator，加入必要的一些控件。
效果如下：
代码实现如下：
namespace
WindowsApp.MyControl
{
/// <summary>
申明委托
</summary><param name="e"></param>
<returns></returns>
public delegate int EventPagingHandler(EventPagingArg e);
分页控件呈现
</summary>
partial class Pager : UserControl
{
public Pager()
{
InitializeComponent();
}
event EventPagingHandler EventPaging;
每页显示记录数
</summary>
private int _pageSize = 20;
int PageSize
{
get { return _pageSize; }
set
{
_pageSize = value;
GetPageCount();
}
}
int _nMax = 0;
总记录数
int NMax
{
get { return _nMax; }
set
{
_nMax = value;
GetPageCount();
}
}
int _pageCount = 0;
页数=总记录数/每页显示记录数
int PageCount
{
get { return _pageCount; }
set { _pageCount = value; }
}
int _pageCurrent = 0;
@H_661_502@ 当前页号
int PageCurrent
{
get { return _pageCurrent; }
set { _pageCurrent = value; }
}
void GetPageCount()
{
if (this.NMax > 0)
{
this.PageCount = Convert.ToInt32(Math.Ceiling(Convert.Todouble(this.NMax) / Convert.Todouble(this.PageSize)));
}
else
{
this.PageCount = 0;
}
}
翻页控件数据绑定的方法
void Bind()
{
this.EventPaging != null)
{
this.NMax = this.EventPaging(new EventPagingArg(this.PageCurrent));
}
this.PageCurrent > this.PageCount)
{
this.PageCurrent = this.PageCount;
}
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();
this.PageCurrent == 1)
{
this.btnPrev.Enabled = false;
this.btnFirst.Enabled = false;
}
else
{
btnPrev.Enabled = true;
btnFirst.Enabled = true;
}
this.PageCurrent == this.PageCount)
{
this.btnLast.Enabled = this.btnNext.Enabled = else
{
btnLast.Enabled = true;
btnNext.Enabled = this.NMax == 0)
{
btnNext.Enabled = false;
btnLast.Enabled = false;
btnFirst.Enabled = false;
btnPrev.Enabled = false;
}
}
void btnFirst_Click(object sender, EventArgs e)
{
PageCurrent = 1;
this.Bind();
}
void btnPrev_Click(
{
PageCurrent -= if (PageCurrent <= 0)
{
PageCurrent = 1;
}
void btnNext_Click(
{
this.PageCurrent += if (PageCurrent > PageCount)
{
PageCurrent = PageCount;
}
void btnLast_Click(
{
PageCurrent = PageCount;
void btnGo_Click(
{
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！");
}
}
}
}
自定义事件数据基类
class EventPagingArg : EventArgs
{
int _intPageIndex;
public EventPagingArg(int PageIndex)
{
_intPageIndex = PageIndex;
}
}
}
控件功能基本实现。
如何绑定数据呢？
大数量分页，使用存储过程。
这个存储过程是网络上考的，呵呵。我把它给贴出来，希望原作者别砸我砖头。。。。。
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 Asc
4.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
500
),0)">@Sort
500
)
=
NULL
,0)">@CurrentPage
int
=
1
,0)">@PageSize
10
,0)">@Fields
2000
)
=
'
*
'
,0)">@Filter
1000
)
@Group
NULL
)
AS
默认排序*/
IF
IS
NULL
OR
@Sort
''
SET
@PrimaryKey
DECLARE
@SortTable
1000
)
@SortName
@strSortColumn
@operator
char
(
2
)
@type
@prec
int
设定排序语句.IF
CHARINDEX
(
DESC
@Sort
)
>
0
BEGIN
@strSortColumn
REPLACE
(
@Sort
,
''
)
@operator
<=
'
END
ELSE
ASC
@Sort
)
>=
.
@strSortColumn
)
>
@SortTable
SUBSTRING
(
@strSortColumn
,
0
,0)">@strSortColumn
))
@SortName
+
LEN
(
@Tables
@strSortColumn
SELECT
@type
=
t.name,0)">@prec
=
c.prec
FROM
sysobjects o
JOIN
syscolumns c
on
o.id
=
c.id
JOIN
systypes t
on
c.xusertype
=
t.xusertype
WHERE
o.name
AND
c.name
@SortName
char
@type
)
@type
+
(
'
CAST
(
AS
varchar
)
)
@strPageSize
500
)
@strStartRow
@strFilter
@strSimpleFilter
@strGroup
1000
)
默认当前页@CurrentPage
<
1
1
设置分页参数.@strPageSize
500
))
@strStartRow
CAST
(((
-
1
)
*
@PageSize
1
)
500
))
@H_404_2385@筛选以及分组语句.IS
NOT
AND
@Filter
!=
@strFilter
WHERE
+
@strSimpleFilter
AND
@Group
@strGroup
GROUP BY
''
执行查询语句EXEC
(
DECLARE @SortColumn
SET ROWCOUNT
SELECT @SortColumn=
FROM
@Tables
ORDER BY
SELECT
@Fields
@SortColumn
'
)
使用该存储过陈，得到数据，将数据绑定到数据控件，提供了一个pageData类
数据源提供
</summary>
public
class
PageData
{
int _PageSize = 10;
int _PageIndex = 1;
int _PageCount = 0;
int _TotalCount = string _TableName;//表名
string _QueryFieldName = *";表字段FieldStrstring _OrderStr = string.Empty; 排序_SortStrstring _QueryCondition = string.Empty;查询的条件 RowFilterstring _PrimaryKey = 主键
显示页数
int PageSize
{
get
{
return _PageSize;
}
set
{
_PageSize = value;
}
}
当前页
int PageIndex
{
get
{
return _PageIndex;
}
set
{
_PageIndex = value;
}
}
总页数
int PageCount
{
get
{
return _PageCount;
}
}
int TotalCount
{
get
{
return _TotalCount;
}
}
表名，包括视图
string TableName
{
get
{
return _TableName;
}
set
{
_TableName = value;
}
}
表字段FieldStr
string QueryFieldName
{
get
{
return _QueryFieldName;
}
set
{
_QueryFieldName = value;
}
}
排序字段
string OrderStr
{
get
{
return _OrderStr;
}
set
{
_OrderStr = value;
}
}
查询条件
string QueryCondition
{
get
{
return _QueryCondition;
}
set
{
_QueryCondition = value;
}
}
主键
string PrimaryKey
{
get {
return _PrimaryKey;
}
set {
_PrimaryKey = value;
}
}
public DataSet QueryDataTable()
@H_502_3472@{
sqlParameter[] parameters = {
new sqlParameter(@Tables", sqlDbType.VarChar, 255),
@PrimaryKey" , sqlDbType.VarChar ,
@Sort255 ),0)">@CurrentPage@PageSize
@Fields@Filter1000),0)">@Group1000 )
};
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_Paginationdd");
_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;
}
int GetTotalCount()
{
string strsql = select count(1) from "+_TableName;
if (_QueryCondition != string.Empty)
{
strsql += where " + _QueryCondition;
}
return int.Parse(DbHelpersql.GetSingle(strsql).ToString());
}
}
好了，在页面放个DATAGRIDVIEW 拖入控件pager
private
void
ReceiveOrderJLForm_Load(
object
sender, EventArgs e)
{
this.pager1.PageCurrent = this.pager1.Bind();
}
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;
}
int
pager1_EventPaging(WindowsApp.MyControl.EventPagingArg e)
{
return dgvBind();
}
效果如下
http://files.cnblogs.com/nosnowwolf/Pager.rar 控件下载
