asp.net 用Repeater控件制作的简单…
2014-11-25 17:59
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
发表留言模块
前台：
<%@ Page Language="C#"
CodeFile="Default.aspx.cs"
Inherits="_Default" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1"
runat="server">
<div>
<strong>发表留言：</strong><br
/>
用户名：<asp:TextBox ID="name"
runat="server"></asp:TextBox>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator1" runat="server"
ControlToValidate="name"
ErrorMessage="用户名不能为空"></asp:RequiredFieldValidator><br
/>
内容：<asp:TextBox ID="content"
runat="server"></asp:TextBox>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator3" runat="server"
ControlToValidate="content"
ErrorMessage="内容不能为空"></asp:RequiredFieldValidator>
<asp:Button ID="Button1" runat="server"
OnClick="Button1_Click" Text="发表" />
<a
href="admin.aspx">转到管理员登陆界面</a><br
/>
<br />
<asp:Repeater ID="MyRepeater"
runat="server">
<ItemTemplate>
<table width="800"
style="background-color:GrayText"><tr>
<td align="left">
<asp:Label ID="Label3" runat="server"
Text="主题："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"content")
%></td>
<td align="center">
<asp:Label ID="Label4" runat="server"
Text="作者："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"name")
%></td>
<td align="right">
<asp:Label ID="Label5" runat="server"
Text="发表时间："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"clienttime")
%></td></tr></table>
<table
width="800"><tr><td
align="center">
<asp:Label ID="Label1" runat="server"
Text="站长回复：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admincontent")
%></td>
<td align="right">
<asp:Label ID="Label2" runat="server"
Text="回复时间：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admintime")
%></td></tr></table>
<hr />
</ItemTemplate>
</asp:Repeater>
</div>
</form>
</body>
</html>
后台：
using System;
using System.Data;
using System.Configuration;
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 _Default : System.Web.UI.Page
{
protected
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Repeater();
}
}
private void
Repeater()
{
string str =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(str);
string sql = "select content,name,clienttime,admincontent,admintime
from message order by clienttime desc";
SqlDataAdapter adapter = new SqlDataAdapter(sql,connection);
DataSet myset = new DataSet();
adapter.Fill(myset,"message");
connection.Open();
MyRepeater.DataSource = myset;
MyRepeater.DataBind();
connection.Close();
}
protected
void Button1_Click(object sender, EventArgs e)
{
string str =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(str);
string sql = string.Format("select * from author where
clientname='{0}'",name.Text);
SqlCommand cmd = new SqlCommand(sql, connection);
connection.Open();
SqlDataReader datareader = cmd.ExecuteReader();
if (datareader.Read())
{
insert();
}
else
{
Response.Write("<script
language='javascript'>alert('无此用户名！请重新输入！')</script>");
name.Focus();
}
datareader.Close();
connection.Close();
}
private void
insert()
{
string conn =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(conn);
string sql = string.Format("insert into message(content,name)
values('{0}','{1}')",content.Text,name.Text);
SqlCommand cmd = new SqlCommand(sql,connection);
connection.Open();
cmd.ExecuteNonQuery();
connection.Close();
Repeater();
}
}
管理员模块：
前台：
<%@ Page Language="C#"
CodeFile="admin.aspx.cs" Inherits="admin" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1"
runat="server">
<div>
<strong><span
style="font-size:
14pt">管理员登陆<br
/>
</span></strong>姓名：
<asp:TextBox ID="author"
runat="server"></asp:TextBox><br
/>
密码：
<asp:TextBox ID="passwd"
runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server"
Text="登陆" OnClick="Button1_Click"
/>
<asp:Button ID="Button2" runat="server"
Text="转到用户发表留言界面" OnClick="Button2_Click"
/><br />
<br />
<asp:Repeater Visible="false" ID="Repeater1"
runat="server"
OnItemCommand="Repeater1_ItemCommand">
<ItemTemplate>
<table width="900"
style="background-color:GrayText"><tr>
<td align="left">
<asp:Label ID="id" runat="server"
Text="编号："></asp:Label>
<%#
DataBinder.eval_r(Container.DataItem,"id")%>
</td>
<td align="left">
<asp:Label ID="Label3" runat="server"
Text="主题："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"content")
%></td>
<td align="center">
<asp:Label ID="Label4" runat="server"
Text="作者："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"name")
%></td>
<td align="right">
<asp:Label ID="Label5" runat="server"
Text="发表时间："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"clienttime")
%></td></tr></table>
<asp:Label ID="Label10" runat="server"
Text="站长回复：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admincontent")
%>
<asp:TextBox ID="insert"
runat="server"></asp:TextBox>
<asp:Button ID="ins" runat="server"
CommandName="add" CommandArgument='<%# eval_r("id")
%>' Text="更改站长回复"
/>
<table
width="900"><tr>
<td align="right">
<asp:Label ID="Label2" runat="server"
Text="回复时间：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admintime")
%></td></tr></table>
<hr />
</ItemTemplate>
</asp:Repeater>
</div>
</form>
</body>
</html>
后台：
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 admin : System.Web.UI.Page
{
protected
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Repeater();
}
}
protected
void Button1_Click(object sender, EventArgs e)
{
string ttt =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(ttt);
string sql = string.Format("select * from author where
adminname='{0}' and adminpasswd='{1}'",author.Text,
passwd.Text);
SqlCommand cmd = new SqlCommand(sql, connection);
connection.Open();
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
Repeater1.Visible = true;
}
else
{
Response.Write("<script
language='javascript'>alert('登录失败！')</script>");
}
dr.Close();
}
private void
Repeater()
{
string str =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(str);
string sql = "select
id,content,name,clienttime,admincontent,admintime from message
order by clienttime desc";
SqlDataAdapter adapter = new SqlDataAdapter(sql,connection);
DataSet myset = new DataSet();
adapter.Fill(myset,"message");
connection.Open();
Repeater1.DataSource = myset;
Repeater1.DataBind();
connection.Close();
}
protected
void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs
e)
{
if (e.CommandName.ToString() == "add")
{
string text = ((TextBox)e.Item.FindControl("insert")).Text;
int id = int.Parse(e.CommandArgument.ToString());
string conn =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(conn);
string sql = string.Format("update message set admincontent='{0}'
where id={1}",text,id);
SqlCommand cmd = new SqlCommand(sql, connection);
connection.Open();
cmd.ExecuteNonQuery();
connection.Close();
Repeater();
}
}
protected
void Button2_Click(object sender, EventArgs e)
{
Response.Redirect("Default.aspx");
}
}
发表留言模块
前台：
<%@ Page Language="C#"
CodeFile="Default.aspx.cs"
Inherits="_Default" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1"
runat="server">
<div>
<strong>发表留言：</strong><br
/>
用户名：<asp:TextBox ID="name"
runat="server"></asp:TextBox>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator1" runat="server"
ControlToValidate="name"
ErrorMessage="用户名不能为空"></asp:RequiredFieldValidator><br
/>
内容：<asp:TextBox ID="content"
runat="server"></asp:TextBox>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator3" runat="server"
ControlToValidate="content"
ErrorMessage="内容不能为空"></asp:RequiredFieldValidator>
<asp:Button ID="Button1" runat="server"
OnClick="Button1_Click" Text="发表" />
<a
href="admin.aspx">转到管理员登陆界面</a><br
/>
<br />
<asp:Repeater ID="MyRepeater"
runat="server">
<ItemTemplate>
<table width="800"
style="background-color:GrayText"><tr>
<td align="left">
<asp:Label ID="Label3" runat="server"
Text="主题："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"content")
%></td>
<td align="center">
<asp:Label ID="Label4" runat="server"
Text="作者："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"name")
%></td>
<td align="right">
<asp:Label ID="Label5" runat="server"
Text="发表时间："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"clienttime")
%></td></tr></table>
<table
width="800"><tr><td
align="center">
<asp:Label ID="Label1" runat="server"
Text="站长回复：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admincontent")
%></td>
<td align="right">
<asp:Label ID="Label2" runat="server"
Text="回复时间：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admintime")
%></td></tr></table>
<hr />
</ItemTemplate>
</asp:Repeater>
</div>
</form>
</body>
</html>
后台：
using System;
using System.Data;
using System.Configuration;
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 _Default : System.Web.UI.Page
{
protected
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Repeater();
}
}
private void
Repeater()
{
string str =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(str);
string sql = "select content,name,clienttime,admincontent,admintime
from message order by clienttime desc";
SqlDataAdapter adapter = new SqlDataAdapter(sql,connection);
DataSet myset = new DataSet();
adapter.Fill(myset,"message");
connection.Open();
MyRepeater.DataSource = myset;
MyRepeater.DataBind();
connection.Close();
}
protected
void Button1_Click(object sender, EventArgs e)
{
string str =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(str);
string sql = string.Format("select * from author where
clientname='{0}'",name.Text);
SqlCommand cmd = new SqlCommand(sql, connection);
connection.Open();
SqlDataReader datareader = cmd.ExecuteReader();
if (datareader.Read())
{
insert();
}
else
{
Response.Write("<script
language='javascript'>alert('无此用户名！请重新输入！')</script>");
name.Focus();
}
datareader.Close();
connection.Close();
}
private void
insert()
{
string conn =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(conn);
string sql = string.Format("insert into message(content,name)
values('{0}','{1}')",content.Text,name.Text);
SqlCommand cmd = new SqlCommand(sql,connection);
connection.Open();
cmd.ExecuteNonQuery();
connection.Close();
Repeater();
}
}
管理员模块：
前台：
<%@ Page Language="C#"
CodeFile="admin.aspx.cs" Inherits="admin" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1"
runat="server">
<div>
<strong><span
style="font-size:
14pt">管理员登陆<br
/>
</span></strong>姓名：
<asp:TextBox ID="author"
runat="server"></asp:TextBox><br
/>
密码：
<asp:TextBox ID="passwd"
runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server"
Text="登陆" OnClick="Button1_Click"
/>
<asp:Button ID="Button2" runat="server"
Text="转到用户发表留言界面" OnClick="Button2_Click"
/><br />
<br />
<asp:Repeater Visible="false" ID="Repeater1"
runat="server"
OnItemCommand="Repeater1_ItemCommand">
<ItemTemplate>
<table width="900"
style="background-color:GrayText"><tr>
<td align="left">
<asp:Label ID="id" runat="server"
Text="编号："></asp:Label>
<%#
DataBinder.eval_r(Container.DataItem,"id")%>
</td>
<td align="left">
<asp:Label ID="Label3" runat="server"
Text="主题："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"content")
%></td>
<td align="center">
<asp:Label ID="Label4" runat="server"
Text="作者："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"name")
%></td>
<td align="right">
<asp:Label ID="Label5" runat="server"
Text="发表时间："></asp:Label>
<%#DataBinder.eval_r(Container.DataItem,"clienttime")
%></td></tr></table>
<asp:Label ID="Label10" runat="server"
Text="站长回复：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admincontent")
%>
<asp:TextBox ID="insert"
runat="server"></asp:TextBox>
<asp:Button ID="ins" runat="server"
CommandName="add" CommandArgument='<%# eval_r("id")
%>' Text="更改站长回复"
/>
<table
width="900"><tr>
<td align="right">
<asp:Label ID="Label2" runat="server"
Text="回复时间：">
</asp:Label><%#DataBinder.eval_r(Container.DataItem,"admintime")
%></td></tr></table>
<hr />
</ItemTemplate>
</asp:Repeater>
</div>
</form>
</body>
</html>
后台：
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 admin : System.Web.UI.Page
{
protected
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Repeater();
}
}
protected
void Button1_Click(object sender, EventArgs e)
{
string ttt =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(ttt);
string sql = string.Format("select * from author where
adminname='{0}' and adminpasswd='{1}'",author.Text,
passwd.Text);
SqlCommand cmd = new SqlCommand(sql, connection);
connection.Open();
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
Repeater1.Visible = true;
}
else
{
Response.Write("<script
language='javascript'>alert('登录失败！')</script>");
}
dr.Close();
}
private void
Repeater()
{
string str =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(str);
string sql = "select
id,content,name,clienttime,admincontent,admintime from message
order by clienttime desc";
SqlDataAdapter adapter = new SqlDataAdapter(sql,connection);
DataSet myset = new DataSet();
adapter.Fill(myset,"message");
connection.Open();
Repeater1.DataSource = myset;
Repeater1.DataBind();
connection.Close();
}
protected
void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs
e)
{
if (e.CommandName.ToString() == "add")
{
string text = ((TextBox)e.Item.FindControl("insert")).Text;
int id = int.Parse(e.CommandArgument.ToString());
string conn =
"server=localhost;uid=sa;pwd=123;database=message;";
SqlConnection connection = new SqlConnection(conn);
string sql = string.Format("update message set admincontent='{0}'
where id={1}",text,id);
SqlCommand cmd = new SqlCommand(sql, connection);
connection.Open();
cmd.ExecuteNonQuery();
connection.Close();
Repeater();
}
}
protected
void Button2_Click(object sender, EventArgs e)
{
Response.Redirect("Default.aspx");
}
}
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