Posted on 2007-04-22 22:16
停留的风 阅读(828)
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.NET技术
关于VS2005中GridView的自定义分页，单选、多选、排序、自增列的简单应用。
多选时，只有全部选中时“多选”才选中。
图片效果：
简单示例，代码如下，
fenpage.aspx的代码：
<%
@ Page Language="C#" AutoEventWireup="true" CodeFile="fenpage.aspx.cs" Inherits="gridview_fenpage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="javascript" type="text/javascript">
// 判断多选是否与选中项（没有选中的返回false）
function slcNo_click()
{
if (document.form1.checkboxname.length)
{
for (var i=0;i<document.form1.checkboxname.length;i++)
{
if(document.form1.checkboxname[i].checked)
{
return true;
}
}
}
else
{
if(document.form1.checkboxname.checked)
{
return true;
}
}
alert("请选择后再操作！");
return false;
}
// 鼠标经过改变行的颜色
if (!objbeforeItem)
{
var objbeforeItem=null;
var objbeforeItembackgroundColor=null;
}
function ItemOver(obj)
{
if(objbeforeItem)
{
objbeforeItem.style.backgroundColor = objbeforeItembackgroundColor;
}
objbeforeItembackgroundColor = obj.style.backgroundColor;
objbeforeItem = obj;
obj.style.backgroundColor = "#B9D1F3";
}
//
// 多选的全选与取消
function checkJs(boolvalue)
{
if(document.all.checkboxname.length>1)
{
for(var i=0;i<document.all.checkboxname.length;i++)
{
document.all.checkboxname[i].checked = boolvalue;
}
}
else
document.all.checkboxname.checked = boolvalue;
}
//
// 只有全部选中时“全选”选中
function SingleCheckJs()
{
var flag1=false;
var flag2=false;
if (document.form1.checkboxname.length)
{
for (var i=0;i<document.form1.checkboxname.length;i++)
{
if(document.form1.checkboxname[i].checked)
flag1 = true;
else
flag2 = true;
}
}
else
{
if(document.form1.checkboxname.checked)
flag1 = true;
else
flag2 = true;
}
if(flag1==true&&flag2==false)
document.getElementById("chk").checked = true;
else
document.getElementById("chk").checked = false;
}
//
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<table cellpadding="0" cellspacing="0" border="0" width="80%" style="font-size: 11px">
<tr>
<td align="center">
<asp:GridView ID="GridView1" runat="server" Width="100%" CellPadding="4" ForeColor="#333333"
AutoGenerateColumns="False" AllowPaging="True" PageSize="12" BorderColor="Silver"
BorderStyle="Solid" BorderWidth="1px" OnRowDataBound="GridView1_RowDataBound"
ShowFooter="True" EmptyDataText="没有数据记录！！" AllowSorting="True" OnSorting="GridView1_Sorting">
<Columns>
<asp:BoundField HeaderText="编号" DataField="id" Visible="False" />
<asp:TemplateField HeaderText="<input type='checkbox' id='chk' name='chk' onclick='checkJs(this.checked);' />全选" FooterText="全选">
<ItemTemplate>
<input type="checkbox" id="checkboxname" name="checkboxname" value='<%# DataBinder.Eval(Container.DataItem, "id")%>' onclick='SingleCheckJs();' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="单选" FooterText="单选">
<ItemTemplate>
<input type="radio" id="RadioName" name="RadioName" value='<%# Eval("id")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="自增列" FooterText="自增列">
<ItemTemplate>
<%# (Container.DataItemIndex+1).ToString()%>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField HeaderText="姓名" FooterText="姓名" DataField="name" SortExpression="name" />
<asp:BoundField HeaderText="身份证号" FooterText="身份证号" DataField="card" SortExpression="card" />
<asp:BoundField HeaderText="价格" FooterText="价格" DataField="price" DataFormatString="{0:￥#,##0.00}"
HtmlEncode="False" SortExpression="price" />
<asp:BoundField HeaderText="数字" FooterText="数字" DataField="price" DataFormatString="{0:0.00}"
HtmlEncode="False" SortExpression="price" />
<asp:BoundField HeaderText="建立时间" FooterText="建立时间" DataField="createdate" DataFormatString="{0:yyyy年MM月dd日 hh时mm分ss秒}"
HtmlEncode="False" SortExpression="createdate" />
</Columns>
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<EditRowStyle BackColor="#999999" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<PagerSettings Visible="False" />
<FooterStyle Font-Bold="True" />
<HeaderStyle Font-Bold="False" Font-Italic="False" />
</asp:GridView>
</td>
</tr>
<tr>
<td align="center" style="height: 25px">
<asp:LinkButton ID="btnFirst" CommandArgument="first" OnClick="PagerButtonClick"
runat="server">首 页</asp:LinkButton>
<asp:LinkButton ID="btnPrev" CommandArgument="prev" OnClick="PagerButtonClick" runat="server">上一页</asp:LinkButton>
<asp:LinkButton ID="btnNext" CommandArgument="next" OnClick="PagerButtonClick" runat="server">下一页</asp:LinkButton>
<asp:LinkButton ID="btnLast" CommandArgument="last" OnClick="PagerButtonClick" runat="server">尾 页</asp:LinkButton>
<asp:Label ID="LblCurrentIndex" runat="server"></asp:Label>
<asp:Label ID="LblPageCount" runat="server"></asp:Label>
<asp:Label ID="LblRecordCount" runat="server"></asp:Label></td>
</tr>
<tr>
<td>
<asp:Button ID="Button2" runat="server" Text="checkbox得到选择的行" OnClick="Button2_Click">
</asp:Button>
<asp:Button ID="Button1" runat="server" Text="radio得到选择的行" OnClick="Button1_Click"></asp:Button>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>：
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class gridview_fenpage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Button2.Attributes["onclick"] = "return slcNo_click();";
GridViewBind("");
}
private void GridViewBind(string Sqlsort)
{
string connStr = ConfigurationManager.ConnectionStrings["ConnString1"].ConnectionString;
string SqlStr = "SELECT * FROM test01 where id<1000" + Sqlsort;
DataSet ds = new DataSet();
try
{
SqlConnection conn = new SqlConnection(connStr);
if (conn.State.ToString() == "Closed") conn.Open();
SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
da.Fill(ds, "test01");
if (conn.State.ToString() == "Open") conn.Close();
GridView1.DataSource = ds.Tables[0].DefaultView;
GridView1.DataBind();
LblCurrentIndex.Text = "第 " + (GridView1.PageIndex + 1).ToString() + " 页";
LblPageCount.Text = "共 " + GridView1 .PageCount.ToString()+ " 页";
LblRecordCount.Text = "总共 "+ds.Tables[0].Rows.Count.ToString()+" 条";
if (ds.Tables[0].Rows.Count == 0)
{
btnFirst.Visible = false;
btnPrev.Visible = false;
btnNext.Visible = false;
btnLast.Visible = false;
LblCurrentIndex.Visible = false;
LblPageCount.Visible = false;
LblRecordCount.Visible = false;
}
else if (GridView1.PageCount == 1)
{
btnFirst.Visible = false;
btnPrev.Visible = false;
btnNext.Visible = false;
btnLast.Visible = false;
}
// 计算生成分页页码,分别为："首 页" "上一页" "下一页" "尾 页"
btnFirst.CommandName = "1";
btnPrev.CommandName = (GridView1.PageIndex == 0 ? "1" : GridView1.PageIndex.ToString());
btnNext.CommandName = (GridView1.PageCount == 1 ? GridView1.PageCount.ToString() : (GridView1.PageIndex + 2).ToString());
btnLast.CommandName = GridView1.PageCount.ToString();
//
}
catch(Exception ex)
{
Response.Write("数据库错误，错误原因："+ex.Message);
Response.End();
}
}
protected void PagerButtonClick(object sender, EventArgs e)
{
GridView1.PageIndex = Convert.ToInt32(((LinkButton)sender).CommandName)-1;
GridViewBind("");
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
e.Row.Attributes["onmouseover"] = "ItemOver(this)";
}
protected void Button2_Click(object sender, EventArgs e)
{
string str="";
string []ckb=null;
str=Request.Form.Get("checkboxname");
ckb=str.Split(new char[]{','});
Response.Write("直接在页面中得到的值为："+str+"<br>");
Response.Write("处理后存放在数组中，如下：<br>");
for(int i=0;i<ckb.Length;i++)
{
Response.Write("ckb["+i+"]的值为："+ckb[i]+"<br>");
}
}
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write(Request.Form.Get("RadioName"));
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
string sql = "";
if (ViewState["SortDirection"] == null || ViewState["SortDirection"].ToString().CompareTo("") == 0)
{
ViewState["SortDirection"] = " desc";
}
else
ViewState["SortDirection"] = "";
sql = " order by " + e.SortExpression + ViewState["SortDirection"];
GridViewBind(sql);
}
}
数据库中表的生成代码：
CREATE TABLE [dbo].[test01] (
[id] [decimal](18, 0) IDENTITY (1, 1) NOT NULL ,
[name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[card] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[createdate] [datetime] NULL
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[test01] ADD
CONSTRAINT [DF_test01_createdate] DEFAULT (getdate()) FOR [createdate],
CONSTRAINT [PK_test01] PRIMARY KEY CLUSTERED
(
[id]
) ON [PRIMARY]
GO