数据控件的使用心得
2010-01-23 19:34 三皮开发时 阅读(259) 评论(0) 编辑 收藏 举报1.DataList--实现了跨表传值方法
前台：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DataList.aspx.cs" Inherits="DataList" %>
<!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>
<style type="text/css">
.tab1 tr td
{
width: 900px;
text-align: center;
}
.tab1 tr th
{
width: 900px;
text-align: center;
}
.edit tr td
{
width: 100px;
}
.select tr td
{
width: 400px;
text-align: left;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div id="div1" class="tab1">
<asp:DataList ID="DataList1" runat="server" HorizontalAlign="Center" On
On
<EditItemTemplate>
<table id="edit" class="edit">
<tr>
<td>
voteItemID:
</td>
<td>
<asp:Label ID="lab1" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
voteID:
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
voteContent:
</td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
voteTotal:
</td>
<td>
<asp:TextBox ID="TextBox3" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
<asp:Button ID="button1" runat="server" Text="更新" CommandName="upda" CommandArgument='<%#Ev
</td>
<td>
<asp:Button ID="button4" runat="server" Text="取消" CommandName="cancel" />
</td>
</tr>
</table>
</EditItemTemplate>
<HeaderTemplate>
<table>
<tr>
<th>
项ID
</th>
<th>
voteID
</th>
<th>
内容
</th>
<th>
投票数
</th>
<th>
详细信息
</th>
<th>
编辑
</th>
<th>
删除
</th>
</tr>
</table>
</HeaderTemplate>
<SelectedItemTemplate>
<table id="select" class="select">
<tr>
<td>
<%#Ev
</td>
</tr>
<tr>
<td>
voteID:<asp:Label ID="lblVoteId" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
voteTitle:<asp:Label ID="Label9" runat="server" Text='<%#GetModel(Convert.ToInt32(Ev
</td>
</tr>
<tr>
<td>
<asp:Button ID="btn23" runat="server" Text="退出浏览详细信息" CommandName="exit" />
</td>
</tr>
</table>
</SelectedItemTemplate>
<ItemTemplate>
<table>
<tr on
<td>
<asp:Label ID="label1" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="Label2" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="Label3" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="Label4" runat="server" Text='<%#Ev
</td>
<td>
<asp:LinkButton ID="LinkButton1" runat="server" Text="详细信息" CommandName="information"></asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="LinkButton2" runat="server" Text="编辑" CommandName="ed"></asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="LinkButton3" runat="server" Text="删除" On
CommandName="del" CommandArgument='<%#Ev
</td>
</tr>
</table>
</ItemTemplate>
</asp:DataList>
</div>
</form>
</body>
</html>
后台：
using System;
using System.Collections;
using System.Configuration;
using System.Da
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Da
public partial class DataList : System.Web.UI.Page
{
public string strCon = ConfigurationManager.AppSettings["ConnectionString"].ToString();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Bind();
}
}
/// <summary>
/// 绑定
/// </summary>
public void Bind()
{
SqlConnection con = new SqlConnection(strCon);
SqlCommand cmd = new SqlCommand("select * from tb_VoteItem", con);
cmd.CommandText = "select * from tb_VoteItem";
SqlDataAdapter adapt = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
adapt.Fill(ds);
DataList1.DataSource = ds.Tables[0].DefaultView;
DataList1.DataBind();
}
public class Model
{
private int _voteID;
private string _voteTitle;
public int VoteID
{
get { return _voteID; }
set { _voteID = value; }
}
public string VoteTitle
{
get { return _voteTitle; }
set { _voteTitle = value; }
}
}
public Model GetModel(int voteID)
{
Model model=new Model ();
SqlConnection con=new SqlConnection (strCon);
SqlCommand cmd = new SqlCommand();
cmd.Connection=con;
if (cmd.Connection.State != ConnectionState.Open)
cmd.Connection.Open();
cmd.CommandText = "SELECT DISTINCT tb_Vote.voteTitle, tb_VoteItem.voteID FROM tb_Vote CROSS JOIN tb_VoteItem WHERE tb_Vote.voteID ="+voteID;
SqlDataReader dr=cmd.ExecuteReader(CommandBehavior.CloseConnection);
FillModel(ref model,dr);
return model;
}
protected void FillModel(ref Model model, SqlDataReader dr)
{
try
{
if (dr.Read())
{
model =new Model ();
model.VoteID=Convert.ToInt32(dr["voteID"]);
model.VoteTitle=dr["voteTitle"].ToString();
}
}
catch
{
throw;
}
finally
{
dr.Dispose();
}
}
protected void DataList1_DeleteCommand(object source, DataListCommandEventArgs e)
{
}
//啥操作都可在这完成 --GridView 不行和ListView部分行部分不行
protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
if (e.CommandName == "ed")
{
DataList1.EditItemIndex = e.Item.ItemIndex;
Bind();
}
if (e.CommandName == "cancel")
{
DataList1.EditItemIndex = -1;
Bind();
}
if (e.CommandName == "upda")
{
string voteID = ((TextBox)e.Item.FindControl("TextBox1")).Text.Trim();
string voteContent = ((TextBox)e.Item.FindControl("TextBox2")).Text.Trim();
string voteTotal = ((TextBox)e.Item.FindControl("TextBox3")).Text.Trim();
string str = "update tb_VoteItem set voteID='" + voteID + "', voteContent='" + voteContent + "', voteTotal='" + voteTotal + "' where voteItemID=" + e.CommandArgument;
SqlConnection con = new SqlConnection(strCon);
SqlCommand cmd = new SqlCommand(str, con);
if (cmd.Connection.State != ConnectionState.Open)
cmd.Connection.Open();
if (cmd.ExecuteNonQuery() > 0)
{
Response.Write("<script>alert('更新成功 !')</script>");
DataList1.EditItemIndex = -1;
Bind();
cmd.Connection.Close();
}
else
{
Response.Write("<script>alert('更新失败 !')</script>");
}
}
if (e.CommandName == "del")
{
SqlConnection con = new SqlConnection(strCon);
SqlCommand cmd = new SqlCommand("delete tb_VoteItem where voteItemID=" + e.CommandArgument, con);
if (cmd.Connection.State != ConnectionState.Open)
cmd.Connection.Open();
if (cmd.ExecuteNonQuery() > 0)
{ Response.Write("<script>alert('删除成功!')</script>"); Bind(); }
else Response.Write("<script>alert('删除失败 !')</script>");
cmd.Connection.Close();
}
if (e.CommandName == "information")
{
DataList1.SelectedIndex = e.Item.ItemIndex;
Bind();
}
if (e.CommandName == "exit")
{
DataList1.SelectedIndex = -1;
Bind();
}
}
}
2.ListView
前台：
<%@ Page Language="C#" AutoEventWireup="true" 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>
<link href="css/StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ListView ID="ListView1" runat="server" On
On
On
<ItemTemplate>
<table id="item" class="item">
<tr on
<td>
<asp:Label ID="labVote" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="labVoteTitle" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="lblContent" runat="server" Text='<%#(Ev
ToolTip='<%#Ev
</td>
<td>
<asp:Label ID="lblTotal" runat="server" Text='<%#Ev
</td>
<td>
<asp:LinkButton ID="lnkbtnSelect" runat="server" Text="详细信息" CommandName="select"></asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="lnkbtnEdit" runat="server" Text="编辑" CommandName="edit"></asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="lnkbtnDel" runat="server" Text="删除" CommandName="del" CommandArgument='<%#Ev
On
</td>
</tr>
</table>
</ItemTemplate>
<EmptyItemTemplate>
<table runat="server">
<tr>
<td>
未返回数据
</td>
</tr>
</table>
</EmptyItemTemplate>
<InsertItemTemplate>
<table id="insert" class="insert">
<tr on
<td colspan="2">
添加信息
</td>
</tr>
<tr on
<td>
voteID:
</td>
<td>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</td>
</tr>
<tr on
<td>
voteContent:
</td>
<td>
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
</td>
</tr>
<tr on
<td>
voteTotal:
</td>
<td>
<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
</td>
</tr>
<tr on
<td colspan="2">
<asp:Button ID="btnAdd" runat="server" Text="添加" CommandName="insert" />
</td>
</tr>
</table>
</InsertItemTemplate>
<LayoutTemplate>
<table runat="server" id="layout" class="layout">
<tr runat="server">
<td runat="server">
<table id="itemPlaceholderContainer" runat="server" border="0" style="">
<tr runat="server">
<th runat="server">
项ID
</th>
<th runat="server">
投票ID
</th>
<th id="Th2" runat="server">
投票选项内容
</th>
<th id="Th3" runat="server">
投票总和
</th>
<th runat="server">
详细信息
</th>
<th runat="server">
编辑
</th>
<th id="Th1" runat="server">
删除
</th>
</tr>
<tr id="itemPlaceholder" runat="server">
</tr>
</table>
</td>
</tr>
</table>
</LayoutTemplate>
<EditItemTemplate>
<table id="edit" class="edit">
<tr>
<td>
项ID
</td>
<td>
<asp:Label ID="txtVoteId" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
投票ID
</td>
<td>
<asp:TextBox ID="txtVoteTitle" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
投票选项
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
投票总数
</td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Text='<%#Ev
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnUpdate" runat="server" Text="更新" CommandName="up" CommandArgument='<%#Ev
</td>
<td>
<asp:Button ID="btnCancel" runat="server" Text="取消" CommandName="can" />
</td>
</tr>
</table>
</EditItemTemplate>
<SelectedItemTemplate>
<table id="sel" class="sel">
<tr>
?查看详细信息<td>
<asp:Label ID="lblVoteId" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="lblVoteTitle" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="Label1" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="Label2" runat="server" Text='<%#Ev
</td>
<td>
<asp:Label ID="lblDis" runat="server" Text="详细信息专栏"></asp:Label>
</td>
<td>
<asp:Button ID="btn1" runat="server" Text="退出Select模板" CommandName="es" />
</td>
</tr>
</table>
</SelectedItemTemplate>
</asp:ListView>
<asp:Button ID="displayInsTem" runat="server" Text="显示插入框" On
<asp:Button ID="noneInsTem" runat="server" Text="隐藏插入框" On
</div>
</form>
</body>
</html>
后台：
和DataList 差不多 ，只不过 编辑模板、选择模板、插入模板 要在他提供的事件中写并且固定CommondName
是编辑的就edit 等。 另外插入模板 显示形式是： <asp:ListView ID="ListVIew1" **** InsertItemTemplatePosition=>
自己选就可以出来，也可以在后台控制 button 事件下 ListView1.InsertItemTemplatePosition=InsertItemTemplatePosition.属性; 既可.
其他的操作，如删除的操作，更新的操作等。都可以在ItemCommand下完成.
