datagrid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false
36 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" >
129 <INPUT type="button" value="取消选中" >
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：
1using System;
2using System.Collections;
3using System.ComponentModel;
4using System.Data;
5using System.Data.SqlClient;
6using System.Drawing;
7using System.Web;
8using System.Web.SessionState;
9using System.Web.UI;
10using System.Web.UI.WebControls;
11using System.Web.UI.HtmlControls;
12using System.Configuration;
13
14namespace localhost.fenpage
15{
16 /**//// <summary>
17 /// testdgRadio 的摘要说明。
18 /// </summary>
19 public class testdatagrid : System.Web.UI.Page
20 {
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 onmouseover
73 e.Item.Attributes.Add("onmouseout","ItemOut(this)");/**///////在每行上增加脚本处理 onmouseout
74 }
75 #endregion
76 }
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 #endregion
101
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+"
");
116
117 Page.Response.Write("处理后存放在数组中，如下：
");
118 for(int i=0;i<ckb.Length;i++)
119 {
120 Page.Response.Write("ckb["+i+"]的值为："+ckb[i]+"
");
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
关于datagrid的几点简单应用
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