2008年1月小记 - 走看看

zoukankan html css js c++ java

2008年1月小记

1、使用List<T>.ConvertAll方法

        public List<string> GetDisallowedUserNames()
        {
            List<DisallowedUser> list = GetDisallowedUsers();
            return list.ConvertAll<string>(new Converter<DisallowedUser, string>(delegate(DisallowedUser u) { return u.UserName; }));
        }

    [Serializable]
    public class DisallowedUser
    {
        private string userName;
        private DateTime createdDate;

        /**//// <summary>
        /// 用户名
        /// </summary>
        public string UserName
        {
            get { return userName; }
            set { userName = value; }
        }

        /**//// <summary>
        /// 添加时间
        /// </summary>
        public DateTime CreatedDate
        {
            get { return createdDate; }
            set { createdDate = value; }
        }


    }

2、CheckBox全选例子。

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

<!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>禁用用户</title>
    <link href="Styles/BaseStyle.css" rel="stylesheet" type="text/css" />
    <script type="text/javascript" language="javascript">
        // <![CDATA[
        function doSelectThis()
        {
            var flag = true;
            var objs = getCheckBoxs();
            for(i=0; i<objs.length; i++)
            {
                //只要有一项没有选择，则不能设置为全选
                if(objs[i].checked == false)
                {
                    flag = false;
                    break;
                }
            }

            var obj = document.getElementById('chbSelectAll');
            if(flag)
            {
                obj.checked = true;
            }
            else
            {
                obj.checked = false;
            }
        }
        function doSelectAll()
        {
            var objs = getCheckBoxs();
            for(i=0; i<objs.length; i++)
            {
                objs[i].checked = isCheckAll() ? true : false;
            }
        }
        function isCheckAll()
        {
            var obj = document.getElementById('chbSelectAll');
            return obj.checked;
        }
        function getCheckBoxs()
        {
            var ids = document.getElementById('<%= hfClientIDs.ClientID %>').value + ']';
            var idArray = eval('(' + ids + ')');
            var objs = new Array();

            for(i=0; i<idArray.length; i++)
            {
                objs.push(document.getElementById(idArray[i]));
            }

            return objs;
        }
        // ]]>
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <div style="margin:0; padding:10px 0 10px 0;">
            用户名：<asp:TextBox ID="txtUserName" runat="server"></asp:TextBox>
            <asp:Button ID="btnInsert" runat="server" Text="禁用" CssClass="defaultButton" OnClick="btnInsert_Click" />
             
            <asp:HiddenField ID="hfClientIDs" runat="server" />
            <asp:LinkButton ID="lbtnDelete" runat="server" OnClick="lbtnDelete_Click" OnClientClick="return confirm('确定要解禁你选择的用户吗？');">解禁选定</asp:LinkButton>
        </div>
        <asp:Repeater ID="retDisallowedUsers" runat="server" OnItemDataBound="retDisallowedUsers_ItemDataBound">
            <HeaderTemplate>
                <table class="baseTable" cellpadding="0" cellspacing="0" border="0" width="500px">
                    <thead>
                        <tr>
                            <td style="80px;">
                                <input id="chbSelectAll" onfocus="this.blur()" onclick="doSelectAll()" value="全选" type="checkbox" /><a id="lblCheckall" >全选</a>
                            </td>
                            <td>被禁用用户</td>
                            <td>禁用时间</td>
                        </tr>
                    </thead>
                    <tbody>
            </HeaderTemplate>
            <ItemTemplate>
                <tr>
                    <td align="center"><asp:CheckBox ID="chbSelectedUser" runat="server" /></td>
                    <td><asp:Literal ID="litUserName" runat="server" /></td>
                    <td><asp:Literal ID="litCreatedDate" runat="server" /></td>
                </tr>
            </ItemTemplate>
            <FooterTemplate>
                    </tbody>
                </table>
            </FooterTemplate>
        </asp:Repeater>
    </div>
    </form>
</body>
</html>

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 CSDN.ServiceComponents.PermissionWrapper;
using CSDN.Profile.IBLL;
using CSDN.Profile.Components;
using System.Collections.Generic;
using CSDN.Profile.ComponentModel;
using CSDN.Profile.Lib;

public partial class Admin_DisallowedUserList : System.Web.UI.Page
{
    protected string UserName = "";

    protected void Page_Load(object sender, EventArgs e)
    {
        IUserExtension iUserExtension = ObjectFactory.CreateIUserExtension();
        if (!iUserExtension.IsLogin(out UserName))
        {
            SiteUrls siteUrls = SiteUrls.Instance();
            Response.Redirect(siteUrls.UserLogin(Request.RawUrl));
        }

        if (!HavePermission("select,insert,update,delete"))
        {
            Response.Output.Write("你没有访问此页面的相应的操作权限");
            Response.End();
        }

        if (!IsPostBack)
        {
            this.BindDisallowedUsers();
        }
    }
    protected void btnInsert_Click(object sender, EventArgs e)
    {
        string txt = txtUserName.Text.Trim();
        string[] names = txt.Split(',');

        IDisallowedUser iDisallowedUser = ObjectFactory.CreateIDisallowedUser();
        foreach (string name in names)
        {
            iDisallowedUser.AddDisallowedUser(name.Trim());
        }

        Response.Redirect(Request.RawUrl, true);
    }
    protected void retDisallowedUsers_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            DisallowedUser disallowedUser = e.Item.DataItem as DisallowedUser;
            if (disallowedUser != null)
            {
                Literal litUserName = (Literal)e.Item.FindControl("litUserName");
                Literal litCreatedDate = (Literal)e.Item.FindControl("litCreatedDate");
                CheckBox chbSelectedUser = (CheckBox)e.Item.FindControl("chbSelectedUser");

                litUserName.Text = disallowedUser.UserName;
                litCreatedDate.Text = disallowedUser.CreatedDate.ToString();

                //把当前的CheckBox的ClientID的值填充到hfClientIDs中
                if (String.IsNullOrEmpty(hfClientIDs.Value))
                {
                    //注意："[\""与JS代码function getCheckBoxs()中的']'对应，共同形式一个JSON字符串
                    hfClientIDs.Value = "[\"" + chbSelectedUser.ClientID + "\"";
                }
                else
                {
                    hfClientIDs.Value += String.Format(",\"{0}\"", chbSelectedUser.ClientID);
                }
                //设置CheckBox的客户端脚本
                chbSelectedUser.Attributes.Add("onclick", "doSelectThis()");
            }
        }
    }
    protected void lbtnDelete_Click(object sender, EventArgs e)
    {
        IDisallowedUser iDisallowedUser = ObjectFactory.CreateIDisallowedUser();
        List<string> list = GetSelecedUserNames();
        foreach (string name in list)
        {
            iDisallowedUser.RemoveDisallowedUser(name);
        }
        Response.Redirect(Request.RawUrl, true);
    }

    private void BindDisallowedUsers()
    {
        List<DisallowedUser> list = ObjectFactory.CreateIDisallowedUser().GetDisallowedUsers();

        retDisallowedUsers.DataSource = list;
        retDisallowedUsers.DataBind();
    }
    private List<string> GetSelecedUserNames()
    {
        List<String> userNames = new List<string>();

        foreach (RepeaterItem item in retDisallowedUsers.Items)
        {
            if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
            {
                CheckBox chbSelectedUser = (CheckBox)item.FindControl("chbSelectedUser");
                Literal litUserName = (Literal)item.FindControl("litUserName");

                if (chbSelectedUser.Checked)
                {
                    userNames.Add(litUserName.Text.Trim());
                }
            }
        }

        return userNames;
    }
    private bool HavePermission(string permissions)
    {
        string applicationId = ConfigurationManager.AppSettings["ApplicationId"];
        string targetId = "b6adda71-e3fb-4f27-bdb5-c201bdbabf77";
        string clientId = ConfigurationManager.AppSettings["ClientId"];
        string clientKey = ConfigurationManager.AppSettings["ClientKey"];

        return PermissionServices.HavePermission(clientId, clientKey, applicationId, targetId, this.UserName, permissions);
    }

}

3、使用svcutil 生成WCF客户端
打开Visual Studio 2008 Command Prompt
d:
cd temp
svcutil /language:c# /out:NotifyServiceClient.cs /config:app.config http://localhost:8000/Service/NotifyService.svc

4、手工书写WCF客户端

    public class CacheNotifiedUserClient : ClientBase<ICacheNotifiedUser>, ICacheNotifiedUser
    {
        public CacheNotifiedUserClient() : base() { }
        public CacheNotifiedUserClient(InstanceContext callbackInstance) : base(callbackInstance) { }
        public CacheNotifiedUserClient(string endpointConfigurationName) : base(endpointConfigurationName) { }
        public CacheNotifiedUserClient(Binding binding, EndpointAddress remoteAddress) : base(binding, remoteAddress) { }
        public CacheNotifiedUserClient(InstanceContext callbackInstance, string endpointConfigurationName) : base(callbackInstance, endpointConfigurationName) { }
        public CacheNotifiedUserClient(string endpointConfigurationName, EndpointAddress remoteAddress) : base(endpointConfigurationName, remoteAddress) { }
        public CacheNotifiedUserClient(string endpointConfigurationName, string remoteAddress) : base(endpointConfigurationName, remoteAddress) { }
        public CacheNotifiedUserClient(InstanceContext callbackInstance, Binding binding, EndpointAddress remoteAddress) : base(callbackInstance, binding, remoteAddress) { }
        public CacheNotifiedUserClient(InstanceContext callbackInstance, string endpointConfigurationName, EndpointAddress remoteAddress) : base(callbackInstance, endpointConfigurationName, remoteAddress) { }
        public CacheNotifiedUserClient(InstanceContext callbackInstance, string endpointConfigurationName, string remoteAddress) : base(callbackInstance, endpointConfigurationName, remoteAddress) { }

        public void Dispose() { this.Close();}

        public bool Contains(string userName)
        {
            return this.Channel.Contains(userName);
        }
    }

5、如何方便地自动生成WCF客户端及配置文件。
A、设置VS2008 X86 tools的环境：Call "C:\Program Files\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" x86
B、svcutil /language:c# /out:NotifyServiceClient.cs /config:app.config http://localhost:8000/Service/NotifyService.svc
C、写成一个生成后事件

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原文地址：https://www.cnblogs.com/chenjunbiao/p/1760224.html