GridView 用法一

最新推荐文章于 2020-12-08 09:18:30 发布

qvyyy

最新推荐文章于 2020-12-08 09:18:30 发布

阅读量1k

点赞数

文章标签： asp server object string button html

本文链接：https://blog.youkuaiyun.com/qvyyy/article/details/1450766

版权

前台: testGridView.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="testGridView.aspx.cs" Inherits="testGridView" %>
2

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4

<html xmlns="http://www.w3.org/1999/xhtml" >
6

<head runat="server">
7

<title>无标题页</title>
8

td{
10

font-size:12px;
11

}
12

</style>
13

</head>
14

<body>
15

<form id="form1" runat="server">
16

<div>
17

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" PageSize="2" AutoGenerateColumns="False"
18

BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
19

CellPadding="3" DataKeyNames="id" DataSourceID="SqlDataSource1" OnRowCreated="GridView1_RowCreated" OnRowDataBound="GridView1_RowDataBound">
20

<FooterStyle BackColor="White" ForeColor="#000066" />
21

<Columns>
22

<asp:CommandField HeaderText="编辑" ShowDeleteButton="True" ShowEditButton="True" />
23

<asp:BoundField DataField="id" HeaderText="用户ID" InsertVisible="False" ReadOnly="True"
24

SortExpression="id" />
25

<asp:BoundField DataField="username" HeaderText="用户名" SortExpression="username" >
26

<ItemStyle BackColor="LightSkyBlue" BorderColor="#FFC0C0" BorderStyle="Dotted" ForeColor="Navy" />
27

</asp:BoundField>
28

<asp:BoundField DataField="TJname" HeaderText="性别" SortExpression="sex" />
29

<asp:BoundField DataField="age" HeaderText="年龄" SortExpression="age" />
30

<asp:BoundField DataField="intro" HeaderText="介绍" SortExpression="intro" />
31

<asp:BoundField DataField="submitTime" HeaderText="加入日期" SortExpression="submitTime" DataFormatString="{0:y}" HtmlEncode="False"/>
32

<asp:TemplateField HeaderText="注册时间">
33

<ItemTemplate>
34

<asp:Label ID="subTime" runat="server" Text='<%# Bind("submitTime", "{0:d}") %>'></asp:Label>
35

</ItemTemplate>
36

</asp:TemplateField>
37

<asp:CheckBoxField DataField="vip" HeaderText="vip会员" ShowHeader="False" SortExpression="vip" />
38

<asp:TemplateField HeaderText="自定义（Sex）">
39

<ItemTemplate>
40

<asp:Label ID="Label1" runat="server" Text='<%# Convert.ToInt32(Eval("sex"))==1?"推荐":"不推荐" %>'></asp:Label>
41

</ItemTemplate>
42

</asp:TemplateField>
43

<asp:TemplateField>
44

<HeaderTemplate>
45

<asp:CheckBox ID="chkAll" runat="server" AutoPostBack="True" OnCheckedChanged="chkAll_CheckedChanged"
46

Text="全选" />
47

</HeaderTemplate>
48

<ItemTemplate>
49

<asp:CheckBox ID="itemChk" runat="server" Text=""/>
50

</ItemTemplate>
51

</asp:TemplateField>
52

<asp:TemplateField HeaderText="此列显示HTML代码">
53

<ItemTemplate>
54

<asp:Literal ID="Literal1" runat="server" Mode="Encode" Text="<B><p>Html Code</p></B>"></asp:Literal>
55

</ItemTemplate>
56

</asp:TemplateField>
57

</Columns>
58

<RowStyle ForeColor="#000066" />
59

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
60

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
61

<HeaderStyle BackColor="#006699" Font-Bold="False" ForeColor="#FFFFC0" Font-Size="13px" />
62

<EmptyDataTemplate>
63

没有数据吗
64

</EmptyDataTemplate>
65

</asp:GridView>
66

<br />
67

共<asp:Label ID="Label2" runat="server" Text=""><%=GridView1.PageCount %></asp:Label>页,当前是第<asp:Label
68

ID="Label3" runat="server" Text=""><%=GridView1.PageIndex+1 %></asp:Label>页.<br />
69

<br />
70

<asp:DropDownList ID="DropDownList1" runat="server">
71

</asp:DropDownList>
72

<asp:Button ID="btnYuc" runat="server" OnClick="btnYuc_Click" Text="隐藏选定的列" />
74

<asp:Button ID="btnShow" runat="server" OnClick="btnShow_Click" Text="显示全部列" />
76

<asp:Button ID="btnDele" runat="server" Text="删除所选的列" OnClientClick=" return window.confirm('女人 ');" OnClick="btnDele_Click" /><br />
78

<br />
79

www.verycd.com
80

</div>
82

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:digConnectionString %>"
83

SelectCommand="select *, TJname=(CASE when sex=1 then '男人' when sex=0 then '女人' end) from test" DeleteCommand="DELETE FROM [test] WHERE [id] = @id" InsertCommand="INSERT INTO [test] ([id], [username], [sex], [age], [intro], [submitTime], [vip]) VALUES (@id, @username, @sex, @age, @intro, @submitTime, @vip)" UpdateCommand="UPDATE [test] SET [username] = @username, [sex] = @sex, [age] = @age, [intro] = @intro, [submitTime] = @submitTime, [vip] = @vip WHERE [id] = @id">
84

<DeleteParameters>
85

<asp:Parameter Name="id" Type="Int32" />
86

</DeleteParameters>
87

<UpdateParameters>
88

<asp:Parameter Name="username" Type="String" />
89

<asp:Parameter Name="sex" Type="Byte" />
90

<asp:Parameter Name="age" Type="Int32" />
91

<asp:Parameter Name="intro" Type="String" />
92

<asp:Parameter Name="submitTime" Type="DateTime" />
93

<asp:Parameter Name="vip" Type="Boolean" />
94

<asp:Parameter Name="id" Type="Int32" />
95

</UpdateParameters>
96

<InsertParameters>
97

<asp:Parameter Name="id" Type="Int32" />
98

<asp:Parameter Name="username" Type="String" />
99

<asp:Parameter Name="sex" Type="Byte" />
100

<asp:Parameter Name="age" Type="Int32" />
101

<asp:Parameter Name="intro" Type="String" />
102

<asp:Parameter Name="submitTime" Type="DateTime" />
103

<asp:Parameter Name="vip" Type="Boolean" />
104

</InsertParameters>
105

</asp:SqlDataSource>
106

   
107

</form>
108

</body>
109

</html>
110

后台: testGridView.aspx.cs

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

public partial class testGridView : System.Web.UI.Page
13

{
14

protected void Page_Load(object sender, EventArgs e)
15

{
16

if (!IsPostBack)
17

{
18

for (int i = 1; i <= GridView1.Columns.Count;i++ )
19

{
20

DropDownList1.Items.Add(i.ToString());
21

}
22

}
23

}
24

public string returnSex(int i)
25

{
26

return i==0?"女":"男";
27

}
30

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
31

{
32

//效果:增加鼠标所在行的样式.
33

//先判断是否是数据行
34

if(e.Row.RowType==DataControlRowType.DataRow)
35

{
36

e.Row.Attributes.Add("onmouseover","c=this.style.backgroundColor;this.style.backgroundColor='#EFEFEF'");
37

e.Row.Attributes.Add("onmouseout","this.style.backgroundColor=c;");
38

}
39

}
40

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
41

{
42

//效果:特定列的样式,比如你的哪一个列的样式
43

for (int i = 0; i < GridView1.Rows.Count;i++)
44

{
45

//注意这里的写法,取得绑定的某列的值,要转换为字符串型.
46

//写法: Convert.String(DataBinder.Eval(e.Row.DataItem,"字段名"));
47

string lbl = Convert.ToString(DataBinder.Eval(e.Row.DataItem,"userName"));
48

if (lbl == "DotNet")
49

{
50

e.Row.BackColor = System.Drawing.Color.LightBlue; //指定颜色.
51

}
52

}
53

}
55

protected void btnYuc_Click(object sender, EventArgs e)
56

{
57

int clo=int.Parse(DropDownList1.SelectedValue)-1;
58

/*这样写有问题，当你点了一列隐藏后，再隐藏其他列，原来的列还是隐藏的
59

GridView1.Columns[clo].Visible = false;
61

*/
63

//下面这方法是每一种状态下,最多只能隐藏一个列
64

//如果第二次隐藏列,原来被隐藏的列又显示回来
65

for (int i = 0; i < GridView1.Columns.Count;i++ )
67

{
68

if (i == clo)
69

{
70

GridView1.Columns[i].Visible = false;
71

}
72

else
73

{
74

GridView1.Columns[i].Visible = true;
75

}
76

}
77

}
79

protected void btnShow_Click(object sender, EventArgs e)
80

{
81

//显示全部列.
82

for(int i=0;i<GridView1.Columns.Count;i++)
83

{
84

GridView1.Columns[i].Visible = true;
85

}
86

}
87

protected void chkAll_CheckedChanged(object sender, EventArgs e)
89

{
90

//注意这里的写法／
91

//CheckBox chkAll = (CheckBox)GridView1.Cells[10].FindControl("chkAll");
92

CheckBox chkAll = (CheckBox)GridView1.HeaderRow.Cells[10].FindControl("chkAll");
93

if (chkAll.Checked)
95

{
96

foreach (GridViewRow gr in GridView1.Rows)
97

{
98

CheckBox chk = (CheckBox)gr.Cells[10].FindControl("itemChk");
99

if (!chk.Checked)//如果没选中，就让它选中
100

{
101

chk.Checked = true;
102

}
103

////else //这里我把它注释掉了，因为加了的话,选中的会被不选中了
104

////{
105

//// chk.Checked = false;
106

////}
107

}
108

}
109

else //取消全选
110

{
111

foreach (GridViewRow gr in GridView1.Rows)
112

{
113

CheckBox chk = (CheckBox)gr.Cells[10].FindControl("itemChk");
114

chk.Checked = false;
115

}
116

}
117

}
118

119

protected void btnDele_Click(object sender, EventArgs e)
120

{
121

string id = "";
122

foreach(GridViewRow gr in GridView1.Rows)
123

{
124

CheckBox chk = (CheckBox)gr.Cells[10].FindControl("itemChk");
125

if(chk.Checked) //如果选中,则删除
126

{
127

if (id == "")
128

{
129

id += GridView1.DataKeys[gr.DataItemIndex].Value.ToString();
130

}
131

else
132

{
133

id += "," + GridView1.DataKeys[gr.DataItemIndex].Value.ToString();
134

}
135

}
136

}
137

// Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", " alert('" + id + "')");
138

Response.Write("您要删除的记录是:"+id);
139

}
140

}