.Nettiers的事件:Page_Load,Search,Delete,Edit,翻页【原创】
此文章包含Page_Load,Search,Delete,Edit,翻页事件, 只用了.nettiers 的Data,Entites,Service层,没有用Web层
<%@ 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 id="Head1" runat="server">
<title>Home Page</title>
<link href="App_Themes/Default/Default.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div>
<br />
<strong>Look For CompanyName:</strong><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" OnClick="btnSearch_Click" Text="Search" /><br />
<br />
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" CellPadding="3" ForeColor="#333333" GridLines="None" DataKeyNames="CustomerId" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowDataBound="GridView1_RowDataBound" OnPageIndexChanging="GridView1_PageIndexChanging" Height="100%" Width="100%">
<Columns>
<asp:BoundField DataField="CustomerId" HeaderText="Customer Id" SortExpression="CustomerID" ReadOnly=True />
<asp:BoundField DataField="CompanyName" HeaderText="Company Name" SortExpression="CompanyName" />
<asp:BoundField DataField="ContactName" HeaderText="Contact Name" SortExpression="ContactName" />
<asp:BoundField DataField="ContactTitle" HeaderText="Contact Title" />
<asp:BoundField DataField="Address" HeaderText="Address" Visible="False" />
<asp:BoundField DataField="City" HeaderText="City" SortExpression="City" />
<asp:BoundField DataField="Region" HeaderText="Region" SortExpression="Region" />
<asp:BoundField DataField="PostalCode" HeaderText="Postal Code" SortExpression="PostalCode" />
<asp:BoundField DataField="Country" HeaderText="Country" SortExpression="Country" />
<asp:BoundField DataField="Phone" HeaderText="Phone" SortExpression="Phone" Visible="False" />
<asp:BoundField DataField="Fax" HeaderText="Fax" />
<asp:BoundField DataField="CustomerPs" HeaderText="CustomerPs" />
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<PagerSettings Mode="NumericFirstLast" />
</asp:GridView>
<br />
<asp:Button ID="btnCustomers" runat="server" OnClientClick="javascript:location.href='EditDefault.aspx?CustomerId='; return false;" Text="Add New" />
<asp:Label ID="Label1" runat="server" ForeColor="Red"></asp:Label></div>
</form>
</body>
</html>
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 Northwind.Services;
using Northwind.Data;
using Northwind.Entities;
public partial class _Default : System.Web.UI.Page
{
/// <summary>
/// Handles the Load event of the Page class.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
CustomersService customersService = new CustomersService();
protected void Page_Load( object sender, EventArgs e)
{
/* 页面加载GridView */
if ( ! IsPostBack)
{
this .GridView1.DataSource = customersService.GetAll();
this .GridView1.DataBind();
this .Label1.Text = "" ;
}
// Response.Write(ValidateCustomers("BOTTM", "Bottom-Dollar Markets").CustomerId);
}
/* 查询Gridview某条记录 */
protected void btnSearch_Click( object sender, EventArgs e)
{
// 查询方法一:
// ParameterizedSqlFilterBuilder<CustomersColumn> sFB = new ParameterizedSqlFilterBuilder<CustomersColumn>();
// sFB.Junction = SqlUtil.AND;
// sFB.AppendGreaterThan("CompanyName", this.TextBox1.Text);
// sFB.AppendLessThan("CompanyName", this.TextBox1.Text);
/// /sFB.AppendRange(OpinionsColumn.OpinionDate, startDate.ToString(), endDate.ToString());
// TList<Customers> customers = DataRepository.CustomersProvider.Find(sFB.GetParameters());
// 查询方法五:
SqlFilterBuilder < CustomersColumn > sqlfilter = new SqlFilterBuilder < CustomersColumn > ();
// sqlfilter.Append(CustomersColumn.CompanyName, this.TextBox1.Text);
sqlfilter.AppendContains(CustomersColumn.CompanyName, this .TextBox1.Text);
int cnt = 0 ;
TList < Customers > customersList = DataRepository.CustomersProvider.GetPaged(sqlfilter.ToString(), null , 0 , 20 , out cnt);
this .GridView1.DataSource = customersList;
this .GridView1.DataBind();
// 查询方法二:
// this.GridView1.DataSource = customersService.GetByCompanyName(this.TextBox1.Text); // 精确查询
// 查询方法三:
// this.GridView1.DataSource = customersService.Find(string.Format("[CompanyName] LIKE '%{0}%'", this.TextBox1.Text));
// this.GridView1.DataBind();
}
// 查询方法四:
public Customers ValidateCustomers( string CustomerId, string CompanyName)
{
SqlFilterBuilder < CustomersColumn > filter = new SqlFilterBuilder < CustomersColumn > ();
filter.Junction = SqlUtil.AND;
filter.AppendEquals(CustomersColumn.CustomerId, CustomerId);
filter.AppendEquals(CustomersColumn.CompanyName, CompanyName);
int count = 0 ;
TList < Customers > customers = DataRepository.CustomersProvider.GetPaged(filter.ToString(), null , 0 , 20 , out count);
if (customers.Count > 0 )
return customers[ 0 ];
else
return null ;
}
/* 删除Gridview某条记录 */
protected void GridView1_RowDeleting( object sender, GridViewDeleteEventArgs e)
{
string ID = ( string )GridView1.DataKeys[e.RowIndex].Value;
bool isok = customersService.Delete(ID);
if (isok)
{
this .Label1.Text = " 删除数据成功！ " ;
this .GridView1.DataSource = customersService.GetAll();
this .GridView1.DataBind();
}
else
{
this .Label1.Text = " 删除数据失败！ " ;
}
}
/* 点击'编辑',页面根据"ID值"转到编辑页面 */
protected void GridView1_RowEditing( object sender, GridViewEditEventArgs e)
{
string urlParams = string .Format( " CustomerId={0} " , ( string )GridView1.DataKeys[e.NewEditIndex].Value);
Response.Redirect( " EditDefault.aspx? " + urlParams, true );
}
protected void GridView1_RowDataBound( object sender, GridViewRowEventArgs e)
{
/// //找到删除按钮
// LinkButton deleteBtn = (LinkButton)e.Row.FindControl("Delete");
// if (deleteBtn != null)
// { // /添加删除确认对话框
// deleteBtn.Attributes.Add("onclick", "return confirm('你确定要删除所选择的数据项吗？');");
// }
}
/* Gridview翻页 */
protected void GridView1_PageIndexChanging( object sender, GridViewPageEventArgs e)
{
this .GridView1.PageIndex = e.NewPageIndex;
this .GridView1.DataSource = customersService.GetAll();
this .GridView1.DataBind();
}
}