Asp.Net 小型网站的制作（二），涵盖了asp.net里面所有的基础知识
2015-09-10 16:24
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上一边我们说到实现了接口里面的所有方法！
下面我们看一下数据的显示！
首先看一下前台页面的部分
在最上面我写了一个js的脚本，将js内嵌在网页里面，就是一个删除的提示框
下面是一个连接了一个css样式。
然后就是后台的代码
在后台的代码里面有几个页面，404异常的页面，登录的页面，对数据的操作就是调用之前写好的方法！在pageloda里面会有一个检查你是否已经登录的方法，这个以后会慢慢说到！
下面我们看一下数据的显示！
首先看一下前台页面的部分
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ClasswebView.aspx.cs" Inherits="WebSql.view.Classweb.ClasswebView" %>
<%@ Register src="../../myModel/Head.ascx" tagname="Head" tagprefix="uc1" %>
<%@ Register src="../../myModel/Foot.ascx" tagname="Foot" tagprefix="uc2" %>
<!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></title>
<script language="javascript" type="text/javascript">
function del() {
return confirm("是否删除"); <!--js选择控件-->
}
</script>
<link rel="Stylesheet" type="text/css" href="../../css/link.css" />
<script type="text/javascript" language="javascript" src="../../javascript/onunload.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<table border="0" cellpadding="0" cellspacing="0" width="781" align="center" ID="Table10">
<!--网页头部的位置：开始-->
<tr>
<td align="center">
<!--网页头部的位置-->
<uc1:Head ID="Head1" runat="server" />
</td>
</tr>
<!--网页头部的位置：结束-->
<!--DataGrid的位置：开始-->
<tr>
<td align="center">
<!--DataGrid的位置-->
<asp:GridView ID="GridView1" runat="server" Width="100%"
AllowPaging="True" AutoGenerateColumns="False" EnableViewState="False"
onpageindexchanging="GridView1_PageIndexChanging"
onselectedindexchanged="GridView1_SelectedIndexChanged"
DataKeyNames="ClassID" onrowdeleting="Delete" onrowediting="Edit"
onrowdatabound="GridView1_RowDataBound"
onrowcommand="GridView1_RowCommand" onrowcreated="GridView1_RowCreated">
<Columns>
<asp:BoundField DataField="ClassName" HeaderText="班级名称" />
<asp:BoundField DataField="Remark" HeaderText="注释" />
<asp:TemplateField HeaderText="操作">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Edit">编辑</asp:LinkButton>
<asp:LinkButton ID="LinkButton2" OnClientClick="del()" runat="server" CommandName="Delete">删除</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
<!--DataGrid的位置：结束-->
<tr>
<td align="right">
<asp:Button ID="Button5" runat="server" onclick="Button5_Click" Text="注册" />
<asp:Button ID="Button4" runat="server" onclick="Button4_Click" Text="AJAx" />
<asp:Button ID="Button3" runat="server" onclick="Button3_Click" Text="加密问题" />
<asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="注册" />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click"
Text="DownList" />
<asp:Button ID="btnadd" runat="server" onclick="btnadd_Click" Text="新增用户" />
</td>
</tr>
<!--网页尾部的位置：开始-->
<tr>
<td align="center">
<!--网页尾部的位置-->
<uc2:Foot ID="Foot1" runat="server" />
</td>
</tr>
<!--网页尾部的位置：结束-->
</table>
</div>
</form>
</body>
</html>在最上面我写了一个js的脚本，将js内嵌在网页里面，就是一个删除的提示框
下面是一个连接了一个css样式。
BODY {
PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-SIZE: 11pt; PADDING-BOTTOM: 0px; MARGIN: 0px; COLOR: #000000; PADDING-TOP: 0px; FONT-FAMILY: "Verdana", "宋体"; TEXT-DECORATION: none
}
TD {
FONT-SIZE: 11pt; COLOR: #554e35; FONT-FAMILY: "Verdana", "宋体"; TEXT-DECORATION: none
}
A:link {
FONT-SIZE: 11pt; COLOR: #000000; FONT-FAMILY: "Verdana", "宋体"; TEXT-DECORATION: none
}
A:visited {
FONT-SIZE: 11pt; COLOR: #000000; FONT-FAMILY: "Verdana", "宋体"; TEXT-DECORATION: none
}
A:active {
FONT-SIZE: 11pt; COLOR: #000000; FONT-FAMILY: "Verdana", "宋体"; TEXT-DECORATION: none
}
A:hover {
FONT-SIZE: 11pt; COLOR: #cc0000; FONT-FAMILY: "Verdana", "宋体"; TEXT-DECORATION: none
}
BUTTON
{
BORDER-RIGHT: #cccccc 1px solid; BORDER-TOP: #cccccc 1px solid; BORDER-LEFT: #cccccc 1px solid; COLOR: #ff3300; BORDER-BOTTOM: #cccccc 1px solid; HEIGHT: 22px; BACKGROUND-COLOR: #efefef
}然后就是后台的代码
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.Web.UI.WebControls;
using BusinessRules;
namespace WebSql.view.Classweb
{
public partial class ClasswebView : WebSql.Mypublic.MyPage
{
int currentPage
{
get
{
return GridView1.PageIndex + 1;
}
set
{
GridView1.PageIndex = value - 1;
}
}
int totalPageCount
{
get
{
return GridView1.PageCount;
}
}
protected void Page_Load(object sender, EventArgs e)
{
// this.Button5.Enabled = false;
// this.Button5.PostBackUrl = "http://www.baidu.com";
CheckLogin();//检查是否登录
this.Button5.Visible = false;
init();
}
void init()
{
ClassTable myClasstable = new ClassTable();
DataTable dt = new DataTable();
GridView1.Visible = true;
GridView1.AllowPaging = true;
GridView1.PagerSettings.Mode = PagerButtons.NextPrevious;
GridView1.PagerSettings.NextPageText = "";
GridView1.PageSize = myPageSize;
GridView1.PagerSettings.PreviousPageText = "";
GridView1.PagerSettings.Position = PagerPosition.TopAndBottom;
GridView1.PagerStyle.HorizontalAlign = HorizontalAlign.Center;
try
{
dt = myClasstable.Query();
}
catch (Exception e)
{
string url = "../Error/404.aspx";
Response.Redirect(url,true);
}
GridView1.DataSource = dt;
GridView1.DataBind();
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
//GridView1.DataBind();
}
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
}
protected void Delete(object sender, GridViewDeleteEventArgs e)
{
ClassTable myClassTable = new ClassTable();
string myKey = GridView1.DataKeys[e.RowIndex].Value.ToString();//获取删除行的索引
bool tishi = false;
string IsDeleteResult = null;
try
{
IsDeleteResult = myClassTable.IsDelete(myKey);//错误日志信息
if (myClassTable.IsDelete(myKey) == null)
{
tishi = myClassTable.Delete(myKey);//判断能否删除
if (tishi)
{
string myMessage = myKey + "：删除成功";
Response.Write("<script language=javascript> alert('" + myMessage + "') </script>");
init();
}
else
{
string myMessage = "删除失败,发送错误报告";
Response.Write("<script language=javascript> alert('" + myMessage + "')</script>");
}
}
else
{
string myMessage = "删除失败原因是：" + IsDeleteResult;
Response.Write("<script language=javascript> alert('" + myMessage + "')</script>");
}
}
catch
{
string url = "../Error/404.aspx";
Response.Redirect(url, true);
}
}
protected void Edit(object sender, GridViewEditEventArgs e)
{
string myKey = GridView1.DataKeys[e.NewEditIndex].Value.ToString();
myKey = Server.UrlEncode(myKey).ToString();//进行编码，防止特殊符号的出现
string url = "ClasswebEdit.aspx?myID=" + myKey;//网页用来传值的方法！问号传值，？名称 = 值！
Response.Redirect(url, true);
}
protected void btnadd_Click(object sender, EventArgs e)
{
string url = "ClasswebAdd.aspx";
Response.Redirect(url, true);
}
protected void Button1_Click(object sender, EventArgs e)
{
string url = "../List/DownList.aspx";
Response.Redirect(url, true);
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
//设置鼠标移动“行上”的颜色
e.Row.Attributes.Add("onmouseover", "bgColor='#97CFF7'");
//设置鼠标移动“行外”的颜色
e.Row.Attributes.Add("onmouseout", "bgColor='#E9F1F3'");
//设置每行的背景色
e.Row.Attributes.Add("bgColor", Color);
}
}
protected void Button2_Click(object sender, EventArgs e)
{
string url = "../List/zhuce.aspx";
Response.Redirect(url, true);
}
protected void GridView1_RowCreated(object sender, System.Web.UI.WebControls.GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Pager)
{
LinkButton lbtnFirstPage = new System.Web.UI.WebControls.LinkButton();//生成一个linkButton
lbtnFirstPage.EnableViewState = false;
lbtnFirstPage.Text = "首页";
lbtnFirstPage.ID = "lbtnFirstPage";
lbtnFirstPage.CommandName = "lbtnFirstPage";
if (this.currentPage != 1)
{
lbtnFirstPage.Enabled = true;
}
else
{
lbtnFirstPage.Enabled = false;
}
//上一页
LinkButton lbtnPreviousPage = new LinkButton();
lbtnPreviousPage.EnableViewState = false;
lbtnPreviousPage.Text = "上一页";
lbtnPreviousPage.ID = "lbtnPreviousPage";
lbtnPreviousPage.CommandName = "lbtnPreviousPage";
if (this.currentPage > 1)
{
lbtnPreviousPage.Enabled = true;
}
else
{
lbtnPreviousPage.Enabled = false;
}
//下一页
LinkButton lbtnNextPage = new LinkButton();
lbtnNextPage.EnableViewState = false;
lbtnNextPage.Text = "下一页";
lbtnNextPage.ID = "lbtnNextPage";
lbtnNextPage.CommandName = "lbtnNextPage";
if (this.currentPage < this.totalPageCount)
{
lbtnNextPage.Enabled = true;
}
else
{
lbtnNextPage.Enabled = false;
}
//末页
LinkButton lbtnLastPage = new LinkButton();
lbtnLastPage.EnableViewState = false;
lbtnLastPage.Text = "末页";
lbtnLastPage.ID = "lbtnLastPage";
lbtnLastPage.CommandName = "lbtnLastPage";
if (this.currentPage != this.totalPageCount)
{
lbtnLastPage.Enabled = true;
}
else
{
lbtnLastPage.Enabled = false;
}
Label lblFirstPage = new Label();
lblFirstPage.EnableViewState = false;
lblFirstPage.ID = "lblFirstPage";
lblFirstPage.Text = " ";
//上一页后的文字
Label lblPreviousPage = new Label();
lblPreviousPage.EnableViewState = false;
lblPreviousPage.ID = "lblPreviousPage";
lblPreviousPage.Text = " ";
//下一页后的文字
Label lblNextPage = new Label();
lblNextPage.EnableViewState = false;
lblNextPage.ID = "lblNextPage";
lblNextPage.Text = " ";
//末页后的文字
Label lblLastPage = new Label();
lblLastPage.EnableViewState = false;
lblLastPage.ID = "lblLastPage";
lblLastPage.Text = " ";
//当前第几页文字
Label lblCurrentPage = new Label();
lblCurrentPage.EnableViewState = false;
lblCurrentPage.ID = "lblCurrentPage";
int j = this.currentPage;
lblCurrentPage.Text = "当前第 " + j.ToString() + " 页 跳转到 ";
//跳转的DropdownList
DropDownList drpJump = new DropDownList();
drpJump.EnableViewState = false;
drpJump.ID = "drpJump";
drpJump.AutoPostBack = true;
for (int i = 1; i < this.totalPageCount + 1; i++)
{
drpJump.Items.Add(i.ToString());
}
drpJump.SelectedIndex = this.currentPage - 1;
//注册SelectedIndexChanged事件对应的方法drpJump_SelectedIndexChanged
drpJump.SelectedIndexChanged += new EventHandler(drpJump_SelectedIndexChanged);
//总页数文字
Label lblTotalPageCount = new Label();
lblTotalPageCount.EnableViewState = false;
lblTotalPageCount.ID = "lblTotalPageCount";
lblTotalPageCount.Text = " 页 总页数 " + this.totalPageCount;
//将上面的定义加入分页区域
e.Row.Cells[0].Controls.Add(lbtnFirstPage);
e.Row.Cells[0].Controls.Add(lblFirstPage);
e.Row.Cells[0].Controls.Add(lbtnPreviousPage);
e.Row.Cells[0].Controls.Add(lblPreviousPage);
e.Row.Cells[0].Controls.Add(lbtnNextPage);
e.Row.Cells[0].Controls.Add(lblNextPage);
e.Row.Cells[0].Controls.Add(lbtnLastPage);
e.Row.Cells[0].Controls.Add(lblLastPage);
e.Row.Cells[0].Controls.Add(lblCurrentPage);
e.Row.Cells[0].Controls.Add(drpJump);
e.Row.Cells[0].Controls.Add(lblTotalPageCount);
}
}
void drpJump_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList drp = (DropDownList)sender;
this.currentPage = drp.SelectedIndex + 1;
init();
}
protected void GridView1_RowCommand(object sender, System.Web.UI.WebControls.GridViewCommandEventArgs e)
{
if (e.CommandName == "lbtnFirstPage")
{
this.currentPage = 1;
init();
}
if (e.CommandName == "lbtnPreviousPage")
{
if (this.currentPage != 1)
{
this.currentPage = this.currentPage - 1;
init();
}
}
if (e.CommandName == "lbtnNextPage")
{
if (this.currentPage < this.totalPageCount)
{
this.currentPage = this.currentPage + 1;
init();
}
}
if (e.CommandName == "lbtnLastPage")
{
this.currentPage = this.totalPageCount;
init();
}
}
protected void Button3_Click(object sender, EventArgs e)
{
string url = "../List/PasswordEdcode.aspx";
Response.Redirect(url, true);
}
protected void Button4_Click(object sender, EventArgs e)
{
string url = "../List/PageAjax.aspx";
Response.Redirect(url, true);
}
protected void Button5_Click(object sender, EventArgs e)
{
string url = "../List/Login.aspx";
Response.Redirect(url, true);
}
}
}在后台的代码里面有几个页面，404异常的页面，登录的页面，对数据的操作就是调用之前写好的方法！在pageloda里面会有一个检查你是否已经登录的方法，这个以后会慢慢说到！
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