GridView中添加一个CheckBox列
1
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridView_CheckBoxColumn.aspx.cs" Inherits="GridSamples_GridView_CheckBoxColumn" %>
2
3<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4
5<html xmlns="http://www.w3.org/1999/xhtml" >
6<head runat="server">
7 <title>无标题页</title>
8 <script language="javascript" type="text/javascript">
9
function selectAll(obj)
10
{
11 var theTable = obj.parentElement.parentElement.parentElement;
12 var i;
13 var j = obj.parentElement.cellIndex;
14
15 for(i=0;i<theTable.rows.length;i++)
16 {
17 var objCheckBox = theTable.rows[i].cells[j].firstChild;
18 if(objCheckBox.checked!=null)objCheckBox.checked = obj.checked;
19
}
20 }
21
</script>
22</head>
23<body>
24 <form id="form1" runat="server">
25 <div>
26 <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
27 DataKeyNames="id" DataSourceID="AccessDataSource1" AllowSorting="True" OnDataBinding="GridView1_DataBinding" OnRowDataBound="GridView1_RowDataBound">
28 <Columns>
29 <asp:TemplateField>
30 <ItemTemplate>
31 <asp:CheckBox ID="CheckBox1" runat="server" Checked="True" Text='<%#DataBinder.Eval(Container.DataItem,"id") %>' />
32 </ItemTemplate>
33 <HeaderTemplate>
34 <input id="CheckAll" type="checkbox" onclick="selectAll(this);" />本页全选
35 </HeaderTemplate>
36 </asp:TemplateField>
37 <asp:BoundField DataField="id" HeaderText="id" InsertVisible="False" ReadOnly="True"
38 SortExpression="id" />
39 <asp:BoundField DataField="name" HeaderText="name" SortExpression="name" />
40 <asp:BoundField DataField="sex" HeaderText="sex" SortExpression="sex" />
41 <asp:BoundField DataField="deptid" HeaderText="deptid" SortExpression="deptid" />
42 </Columns>
43 </asp:GridView>
44
45
46 <asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/test.mdb"
47 SelectCommand="SELECT [id], [name], [sex], [deptid] FROM [employees]"></asp:AccessDataSource>
48 <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="ShowAllSelectedItem" />
49 <asp:TextBox ID="TextBox1" runat="server" Width="200px"></asp:TextBox></div>
50 </form>
51</body>
52</html>
53
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridView_CheckBoxColumn.aspx.cs" Inherits="GridSamples_GridView_CheckBoxColumn" %>
2
3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">4
5
<html xmlns="http://www.w3.org/1999/xhtml" >6
<head runat="server">7
<title>无标题页</title>8
<script language="javascript" type="text/javascript">9
function selectAll(obj)10
{
11
var theTable = obj.parentElement.parentElement.parentElement;12
var i;13
var j = obj.parentElement.cellIndex;14
15
for(i=0;i<theTable.rows.length;i++)16
{17
var objCheckBox = theTable.rows[i].cells[j].firstChild;18
if(objCheckBox.checked!=null)objCheckBox.checked = obj.checked;19
}20
}21
</script>22
</head>23
<body>24
<form id="form1" runat="server">25
<div>26
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"27
DataKeyNames="id" DataSourceID="AccessDataSource1" AllowSorting="True" OnDataBinding="GridView1_DataBinding" OnRowDataBound="GridView1_RowDataBound">28
<Columns>29
<asp:TemplateField>30
<ItemTemplate>31
<asp:CheckBox ID="CheckBox1" runat="server" Checked="True" Text='<%#DataBinder.Eval(Container.DataItem,"id") %>' />32
</ItemTemplate>33
<HeaderTemplate>34
<input id="CheckAll" type="checkbox" onclick="selectAll(this);" />本页全选35
</HeaderTemplate>36
</asp:TemplateField>37
<asp:BoundField DataField="id" HeaderText="id" InsertVisible="False" ReadOnly="True"38
SortExpression="id" />39
<asp:BoundField DataField="name" HeaderText="name" SortExpression="name" />40
<asp:BoundField DataField="sex" HeaderText="sex" SortExpression="sex" />41
<asp:BoundField DataField="deptid" HeaderText="deptid" SortExpression="deptid" />42
</Columns>43
</asp:GridView>44
45
46
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/test.mdb"47
SelectCommand="SELECT [id], [name], [sex], [deptid] FROM [employees]"></asp:AccessDataSource>48
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="ShowAllSelectedItem" />49
<asp:TextBox ID="TextBox1" runat="server" Width="200px"></asp:TextBox></div>50
</form>51
</body>52
</html>53
1using System;
2using System.Data;
3using System.Configuration;
4using System.Collections;
5using System.Web;
6using System.Web.Security;
7using System.Web.UI;
8using System.Web.UI.WebControls;
9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11
12public partial class GridSamples_GridView_CheckBoxColumn : System.Web.UI.Page
13{
14 /// <summary>
15 /// 获取或设置选中项的集合
16 /// </summary>
17 protected ArrayList SelectedItems
18 {
19 get
20 {
21 return (ViewState["mySelectedItems"] != null) ? (ArrayList)ViewState["mySelectedItems"] : null;
22 }
23 set
24 {
25 ViewState["mySelectedItems"] = value;
26 }
27 }
28
29 protected void Page_Load(object sender, EventArgs e)
30 {
31
32 }
33
34
35 protected void GridView1_DataBinding(object sender, EventArgs e)
36 {
37 //在每一次重新绑定之前，需要调用CollectSelected方法从当前页收集选中项的情况
38 CollectSelected();
39 }
40
41
42 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
43 {
44 //这里的处理是为了回显之前选中的情况
45 if (e.Row.RowIndex > -1 && this.SelectedItems!=null)
46 {
47 DataRowView row = e.Row.DataItem as DataRowView;
48 CheckBox cb = e.Row.FindControl("CheckBox1") as CheckBox;
49 if(this.SelectedItems.Contains(row["id"].ToString()))
50 cb.Checked = true;
51 else
52 cb.Checked = false;
53 }
54 }
55 /// <summary>
56 /// 从当前页收集选中项的情况
57 /// </summary>
58 protected void CollectSelected()
59 {
60 ArrayList selectedItems = null;
61 if (this.SelectedItems == null)
62 selectedItems = new ArrayList();
63 else
64 selectedItems = this.SelectedItems;
65
66 for (int i = 0; i < this.GridView1.Rows.Count; i++)
67 {
68 string id = this.GridView1.Rows[i].Cells[1].Text;
69 CheckBox cb = this.GridView1.Rows[i].FindControl("CheckBox1") as CheckBox;
70 if (selectedItems.Contains(id) && !cb.Checked)
71 selectedItems.Remove(id);
72 if (!selectedItems.Contains(id) && cb.Checked)
73 selectedItems.Add(id);
74 }
75 this.SelectedItems = selectedItems;
76 }
77
78 protected void Button1_Click(object sender, EventArgs e)
79 {
80 //最后，需要对选中项进行操作之前，不能忘了还要最后一次收集当前页的选中情况
81 CollectSelected();
82
83 this.TextBox1.Text = string.Empty;
84 foreach (object tmp in this.SelectedItems)
85 this.TextBox1.Text += tmp.ToString() + ",";
86 }
87}
using System;2
using System.Data;3
using System.Configuration;4
using System.Collections;5
using System.Web;6
using System.Web.Security;7
using System.Web.UI;8
using System.Web.UI.WebControls;9
using System.Web.UI.WebControls.WebParts;10
using System.Web.UI.HtmlControls;11
12
public partial class GridSamples_GridView_CheckBoxColumn : System.Web.UI.Page13
{14
/// <summary>15
/// 获取或设置选中项的集合16
/// </summary>17
protected ArrayList SelectedItems18
{19
get20
{21
return (ViewState["mySelectedItems"] != null) ? (ArrayList)ViewState["mySelectedItems"] : null;22
}23
set24
{25
ViewState["mySelectedItems"] = value;26
}27
}28
29
protected void Page_Load(object sender, EventArgs e)30
{31
32
}33
34
35
protected void GridView1_DataBinding(object sender, EventArgs e)36
{37
//在每一次重新绑定之前，需要调用CollectSelected方法从当前页收集选中项的情况38
CollectSelected();39
}40
41
42
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)43
{44
//这里的处理是为了回显之前选中的情况45
if (e.Row.RowIndex > -1 && this.SelectedItems!=null)46
{47
DataRowView row = e.Row.DataItem as DataRowView;48
CheckBox cb = e.Row.FindControl("CheckBox1") as CheckBox;49
if(this.SelectedItems.Contains(row["id"].ToString()))50
cb.Checked = true;51
else52
cb.Checked = false;53
}54
}55
/// <summary>56
/// 从当前页收集选中项的情况57
/// </summary>58
protected void CollectSelected()59
{60
ArrayList selectedItems = null;61
if (this.SelectedItems == null)62
selectedItems = new ArrayList();63
else64
selectedItems = this.SelectedItems;65
66
for (int i = 0; i < this.GridView1.Rows.Count; i++)67
{68
string id = this.GridView1.Rows[i].Cells[1].Text;69
CheckBox cb = this.GridView1.Rows[i].FindControl("CheckBox1") as CheckBox;70
if (selectedItems.Contains(id) && !cb.Checked)71
selectedItems.Remove(id);72
if (!selectedItems.Contains(id) && cb.Checked)73
selectedItems.Add(id);74
}75
this.SelectedItems = selectedItems;76
}77
78
protected void Button1_Click(object sender, EventArgs e)79
{80
//最后，需要对选中项进行操作之前，不能忘了还要最后一次收集当前页的选中情况81
CollectSelected();82
83
this.TextBox1.Text = string.Empty;84
foreach (object tmp in this.SelectedItems)85
this.TextBox1.Text += tmp.ToString() + ",";86
}87
}
