关于datagrid的几点简单应用,功能包括radio的单选,checkbox的多选,鼠标移动到行上颜色变深,链接传递多参数等功能。这里radio和checkbox都使用的是HTML控件。
有关checkbox的几个功能:全部选种、取消选种、没选中操作的检测等,这几个均使用js脚本实现。
运行效果图:
testdatagrid.aspx页面代码:
1
<%@ Page language="c#" Codebehind="testdatagrid.aspx.cs" AutoEventWireup="false" Inherits="localhost.fenpage.testdatagrid" %>2
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >3
<HTML>4
<HEAD>5
<title></title>6
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">7
<meta name="CODE_LANGUAGE" Content="C#">8
<meta name="vs_defaultClientScript" content="JavaScript">9
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">10
<script language="javascript">11
//全部选中12
function QuanXuan_Click()13
{14
if (document.Form1.checkboxname.length){15
for (var i=0;i<document.Form1.checkboxname.length;i++){16
document.Form1.checkboxname[i].checked = true;17
}18
}else{19
document.Form1.checkboxname.checked = true;20
}21
}22
23
//取消选中24
function QuXiao_Click()25
{26
if (document.Form1.checkboxname.length){27
for (var i=0;i<document.Form1.checkboxname.length;i++){28
document.Form1.checkboxname[i].checked = false;29
}30
}else{31
document.Form1.checkboxname.checked = false;32
}33
}34
35
///////////////判断没有选中的返回false36
function slcNo_click()37
{38
if (document.Form1.checkboxname.length){39
for (var i=0;i<document.Form1.checkboxname.length;i++){40
if(document.Form1.checkboxname[i].checked)41
{42
return true;43
}44
}45
}else{46
if(document.Form1.checkboxname.checked)47
{48
return true;49
}50
}51
alert("请选择后再操作!");52
return false;53
}54
55
//////////////////////////////////////改变行的颜色56
if (!objbeforeItem)57
{58
var objbeforeItem=null;59
var objbeforeItembackgroundColor=null;60
}61
function ItemOver(obj)62
{63
objbeforeItembackgroundColor=obj.style.backgroundColor;64
obj.style.backgroundColor="#B9D1F3";65
objbeforeItem=obj;66
}67
68
function ItemOut(obj)69
{70
if(objbeforeItem)71
{72
objbeforeItem.style.backgroundColor=objbeforeItembackgroundColor;73
}74
}75
</script>76
</HEAD>77
<body MS_POSITIONING="GridLayout">78
<form id="Form1" method="post" runat="server">79
<table>80
<tr>81
<td><FONT face="宋体"><asp:datagrid id="MyDataGrid" runat="server" Width="550px" AllowPaging="True" AutoGenerateColumns="False"82
OnPageIndexChanged="MyDataGrid_Page" PageSize="10" CellPadding="2" HorizontalAlign="Left" BorderColor="Gray"83
Font-Size="14px" Font-Names="新宋体">84
<AlternatingItemStyle BackColor="#F2F2F2"></AlternatingItemStyle>85
<ItemStyle Wrap="False" HorizontalAlign="Left" Height="22px" VerticalAlign="Middle"></ItemStyle>86
<HeaderStyle Wrap="False" Height="25px" BackColor="#DEE6F6"></HeaderStyle>87
<Columns>88
<asp:BoundColumn Visible="False" DataField="id" SortExpression="id" HeaderText="id"></asp:BoundColumn>89
<asp:TemplateColumn>90
<HeaderTemplate>91
选择92
</HeaderTemplate>93
<ItemTemplate>94
<input type=radio name="RadioName" value='<%# DataBinder.Eval(Container.DataItem, "id")%>'/>95
</ItemTemplate>96
</asp:TemplateColumn>97
<asp:TemplateColumn>98
<HeaderTemplate>99
选择100
</HeaderTemplate>101
<ItemTemplate>102
<INPUT type="checkbox" name="checkboxname" value='<%# DataBinder.Eval(Container.DataItem, "id")%>'>103
</ItemTemplate>104
</asp:TemplateColumn>105
<asp:TemplateColumn>106
<HeaderTemplate>107
模板列108
</HeaderTemplate>109
<ItemTemplate>110
<asp:Label ID="lblId" Runat="server" Text=''>111
</asp:Label>112
<a href="abc.aspx?id=<%#DataBinder.Eval(Container.DataItem, "id") %>&name=<%#DataBinder.Eval(Container.DataItem, "name") %>" target="_blank">连接</a>113
</ItemTemplate>114
</asp:TemplateColumn>115
<asp:HyperLinkColumn DataNavigateUrlField="id" DataNavigateUrlFormatString="aa.aspx?id={0}" DataTextField="name"116
SortExpression="name" HeaderText="姓名" Target="_blank">117
</asp:HyperLinkColumn>118
<asp:BoundColumn DataField="card" SortExpression="card" HeaderText="身份证号" DataFormatString="{0:yyyy-MM-dd hh:mm:ss}"></asp:BoundColumn>119
<asp:BoundColumn DataField="price" SortExpression="price" HeaderText="价格"></asp:BoundColumn>120
<asp:BoundColumn DataField="shijian" SortExpression="shijian" HeaderText="shijian" DataFormatString="{0:yyyy年MM月dd日}"></asp:BoundColumn>121
</Columns>122
<PagerStyle Mode="NumericPages"></PagerStyle>123
</asp:datagrid></FONT></td>124
</tr>125
<tr>126
<td>127
<asp:Button id="Button1" runat="server" Text="radio得到选择的行"></asp:Button>128
<INPUT type="button" value="全部选中" onclick="QuanXuan_Click()">129
<INPUT type="button" value="取消选中" onclick="QuXiao_Click()">130
<asp:Button id="Button2" runat="server" Text="checkbox得到选择的行"></asp:Button>131
</td>132
</tr>133
</table>134
</form>135
</body>136
</HTML>137
testdatagrid.aspx.cs页面代码:
1
using System;2
using System.Collections;3
using System.ComponentModel;4
using System.Data;5
using System.Data.SqlClient;6
using System.Drawing;7
using System.Web;8
using System.Web.SessionState;9
using System.Web.UI;10
using System.Web.UI.WebControls;11
using System.Web.UI.HtmlControls;12
using System.Configuration;13
14
namespace localhost.fenpage15
{16
/**//// <summary>17
/// testdgRadio 的摘要说明。18
/// </summary>19
public class testdatagrid : System.Web.UI.Page20
{21
protected System.Web.UI.WebControls.RadioButton RadioButton1;22
protected System.Web.UI.WebControls.Button Button1;23
protected System.Web.UI.WebControls.Button Button2;24
protected System.Web.UI.WebControls.DataGrid MyDataGrid;25
26
private void Page_Load(object sender, System.EventArgs e)27
{28
if (!IsPostBack)29
{30
BindGrid();31
}32
33
Button2.Attributes.Add("OnClick","return slcNo_click();");34
}35
36
public void MyDataGrid_Page(object sender, DataGridPageChangedEventArgs e)37
{38
MyDataGrid.CurrentPageIndex = e.NewPageIndex;39
BindGrid();40
}41
42
private void BindGrid()43
{44
string strSql="";45
DataSet ds = new DataSet();46
47
strSql="Select * from testDg";48
SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["ConnStr"]);49
if (conn.State.ToString() == "Closed")50
{51
conn.Open();52
}53
54
SqlDataAdapter Da = new SqlDataAdapter(strSql, conn);55
Da.Fill(ds, "testdg");56
MyDataGrid.DataSource = ds.Tables["testdg"].DefaultView;57
MyDataGrid.DataBind();58
59
Da.Dispose();60
if(conn.State.ToString()=="Open")61
{62
conn.Close();63
}64
conn.Dispose();65
}66
67
private void MyDataGrid_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)68
{69
//配合前台脚本实现鼠标移动到每行上变颜色#region //配合前台脚本实现鼠标移动到每行上变颜色70
if(e.Item.ItemIndex>=0)71
{72
e.Item.Attributes.Add("onmouseover","ItemOver(this)");/**///////在每行上增加脚本处理 onmouseover73
e.Item.Attributes.Add("onmouseout","ItemOut(this)");/**///////在每行上增加脚本处理 onmouseout74
}75
#endregion76
}77
78
Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码79
override protected void OnInit(EventArgs e)80
{81
//82
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。83
//84
InitializeComponent();85
base.OnInit(e);86
}87
88
/**//// <summary>89
/// 设计器支持所需的方法 - 不要使用代码编辑器修改90
/// 此方法的内容。91
/// </summary>92
private void InitializeComponent()93
{94
this.MyDataGrid.ItemCreated += new System.Web.UI.WebControls.DataGridItemEventHandler(this.MyDataGrid_ItemCreated);95
this.Button1.Click += new System.EventHandler(this.Button1_Click);96
this.Button2.Click += new System.EventHandler(this.Button2_Click);97
this.Load += new System.EventHandler(this.Page_Load);98
99
}100
#endregion101
102
private void Button1_Click(object sender, System.EventArgs e)103
{104
Page.Response.Write(Page.Request.Form.Get("RadioName"));105
}106
107
private void Button2_Click(object sender, System.EventArgs e)108
{109
string str="";110
string []ckb=null;111
112
str=Page.Request.Form.Get("checkboxname");113
ckb=str.Split(new char[]{','});114
115
Page.Response.Write("直接在页面中得到的值为:"+str+"<br>");116
117
Page.Response.Write("处理后存放在数组中,如下:<br>");118
for(int i=0;i<ckb.Length;i++)119
{120
Page.Response.Write("ckb["+i+"]的值为:"+ckb[i]+"<br>");121
}122
}123
}124
}125
生成数据库表用到的sql语句:
CREATE TABLE [dbo].[testDg] ( [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 , [price] [numeric](18, 2) NULL , [shijian] [datetime] NULL ) ON [PRIMARY] GO ALTER TABLE [dbo].[testDg] ADD CONSTRAINT [DF_testDg_shijian] DEFAULT (getdate()) FOR [shijian], CONSTRAINT [PK_testDg] PRIMARY KEY CLUSTERED ( [id] ) ON [PRIMARY] GO