本帖最后由 a470649690 于 2011-05-11 11:17:19 编辑

解决方案 »

  1.   

    加个文件判断是否选中了记住密码,比如ini,xml,txt 等
      

  2.   

    http://topic.csdn.net/u/20080831/10/337d2d10-d0b2-40d9-9bbb-1e56bf49556d.html
      

  3.   

    很久以前做过一个类似的功能
    是否自动登陆和是否记住密码我是这样做的:
    配置文件里 设置两个变量 
    一个是:isAutoLogon(bool)用来表示是否自动登陆
    另一个: autoLogonUser(string)存储自动登陆的用户名如果客户选择了记住密码,isAutoLogon=true; autoLogonUser=userName;
    当(isAutoLogon等于true)
    {
        txtUserName等于autoLogonUser;
        txtPassword等于(从数据库读取密码,where userName=autoLogonUser);
    }
      

  4.   

    进行序列化  登录成功后,把用户名和密码封装成实体类,利用BinaryFormat进行序列化保存在本地文件中等下次打开登录窗口,我进行反序列化。
      

  5.   

    这个东东有记住密码功能,可以看看源码去~[align=center]*****************************************
    本内容使用CSDN小秘书回复
    每天回帖即可得10分可用分!
    *****************************************[/align]
      

  6.   

    这种我看到之前有些帖子也讲过,但我想把密码存到bin文件里,密码是加密过的,存的时候是存了加密后的密码还有加密生成的key
      

  7.   

    以前做过,用ComboBox控件来显示用户名。
    窗体加载的时候,读取data.bin,把用户名加到ComboBox中。
    在ComboBox的SelectedValueChanged事件中,获取comboBox1.SelectedItem.ToString(),
    跟读取的用户名对比,取出密码。赋值给PassTextBox即可。
    其他跟正常登录一样。
      

  8.   

    是否保存密码(复选框)和用户名,密码保存到INI文件登陆时候,判断是否保存值,如果为真。读取INI中的用户名和密码。
      

  9.   

    读取INI或XML中的数据好了。对应一个账号一个节点。
      

  10.   

    C++是主修,C#不打算学太多,怕和C++混了.............
      

  11.   


    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;
    using System.IO;namespace StudyWinform
    {
        public partial class Form2 : Form
        {
            string dataPath = Application.StartupPath + "\\data.bin";        private List<UserInfo> userlist = new List<UserInfo>();        public Form2()
            {
                InitializeComponent();
            }        private void button1_Click(object sender, EventArgs e)
            {
                if (chkIsSave.Checked)
                {
                    if (cboxUsername.SelectedItem.ToString() != "")
                    {
                        UserInfo user = userlist.Find(t => t.UserName == cboxUsername.SelectedItem.ToString());
                        if (user != null)
                        {
                            user.Paaaword = tbPassword.Text;
                        }
                        File.WriteAllText(dataPath, "");
                        File.AppendAllText(dataPath, user.UserName + ";" + user.Paaaword + "\r\n", Encoding.UTF8);
                        for (int i = 0; i < userlist.Count; i++)
                        {
                            if (userlist[i].UserName != user.UserName)
                            {
                                File.AppendAllText(dataPath, userlist[i].UserName + ";" + userlist[i].Paaaword + "\r\n", Encoding.UTF8);
                            }
                        }
                    }            }
            }        private void cboxUsername_SelectedValueChanged(object sender, EventArgs e)
            {
                if (cboxUsername.SelectedItem.ToString() != "")
                {
                    UserInfo user = userlist.Find(t => t.UserName == cboxUsername.SelectedItem.ToString());
                    if (user != null)
                    {
                        tbPassword.Text = user.Paaaword;
                    }
                }
            }        private void Form2_Load(object sender, EventArgs e)
            {            string[] data = File.ReadAllLines(dataPath);
                for (int i = 0; i < data.Length; i++)
                {
                    if (data[i] != "" && data[i].Contains(";"))
                    {
                        UserInfo user = new UserInfo();
                        user.UserName = data[i].Split(';')[0];
                        user.Paaaword = data[i].Split(';')[1];
                        cboxUsername.Items.Add(user.UserName);
                        userlist.Add(user);
                    }
                }
            }
        }    public class UserInfo
        {
            public string UserName { get; set; }
            public string Paaaword { get; set; }
        }
    }
    namespace StudyWinform
    {
        partial class Form2
        {
            /// <summary>
            /// Required designer variable.
            /// </summary>
            private System.ComponentModel.IContainer components = null;        /// <summary>
            /// Clean up any resources being used.
            /// </summary>
            /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
            protected override void Dispose(bool disposing)
            {
                if (disposing && (components != null))
                {
                    components.Dispose();
                }
                base.Dispose(disposing);
            }        #region Windows Form Designer generated code        /// <summary>
            /// Required method for Designer support - do not modify
            /// the contents of this method with the code editor.
            /// </summary>
            private void InitializeComponent()
            {
                this.tbPassword = new System.Windows.Forms.TextBox();
                this.cboxUsername = new System.Windows.Forms.ComboBox();
                this.chkIsSave = new System.Windows.Forms.CheckBox();
                this.btnLogin = new System.Windows.Forms.Button();
                this.label1 = new System.Windows.Forms.Label();
                this.label2 = new System.Windows.Forms.Label();
                this.SuspendLayout();
                // 
                // tbPassword
                // 
                this.tbPassword.Location = new System.Drawing.Point(59, 70);
                this.tbPassword.Name = "tbPassword";
                this.tbPassword.Size = new System.Drawing.Size(121, 20);
                this.tbPassword.TabIndex = 0;
                this.tbPassword.UseSystemPasswordChar = true;
                // 
                // cboxUsername
                // 
                this.cboxUsername.FormattingEnabled = true;
                this.cboxUsername.Location = new System.Drawing.Point(59, 25);
                this.cboxUsername.Name = "cboxUsername";
                this.cboxUsername.Size = new System.Drawing.Size(121, 21);
                this.cboxUsername.TabIndex = 1;
                this.cboxUsername.SelectedValueChanged += new System.EventHandler(this.cboxUsername_SelectedValueChanged);
                // 
                // chkIsSave
                // 
                this.chkIsSave.AutoSize = true;
                this.chkIsSave.Location = new System.Drawing.Point(13, 126);
                this.chkIsSave.Name = "chkIsSave";
                this.chkIsSave.Size = new System.Drawing.Size(62, 17);
                this.chkIsSave.TabIndex = 2;
                this.chkIsSave.Text = "记住我";
                this.chkIsSave.UseVisualStyleBackColor = true;
                // 
                // btnLogin
                // 
                this.btnLogin.Location = new System.Drawing.Point(105, 122);
                this.btnLogin.Name = "btnLogin";
                this.btnLogin.Size = new System.Drawing.Size(75, 23);
                this.btnLogin.TabIndex = 3;
                this.btnLogin.Text = "登录";
                this.btnLogin.UseVisualStyleBackColor = true;
                this.btnLogin.Click += new System.EventHandler(this.button1_Click);
                // 
                // label1
                // 
                this.label1.AutoSize = true;
                this.label1.Location = new System.Drawing.Point(10, 28);
                this.label1.Name = "label1";
                this.label1.Size = new System.Drawing.Size(43, 13);
                this.label1.TabIndex = 4;
                this.label1.Text = "用户名";
                // 
                // label2
                // 
                this.label2.AutoSize = true;
                this.label2.Location = new System.Drawing.Point(10, 73);
                this.label2.Name = "label2";
                this.label2.Size = new System.Drawing.Size(43, 13);
                this.label2.TabIndex = 5;
                this.label2.Text = "密 码";
                // 
                // Form2
                // 
                this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
                this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                this.ClientSize = new System.Drawing.Size(209, 160);
                this.Controls.Add(this.label2);
                this.Controls.Add(this.label1);
                this.Controls.Add(this.btnLogin);
                this.Controls.Add(this.chkIsSave);
                this.Controls.Add(this.cboxUsername);
                this.Controls.Add(this.tbPassword);
                this.Name = "Form2";
                this.Text = "Form2";
                this.Load += new System.EventHandler(this.Form2_Load);
                this.ResumeLayout(false);
                this.PerformLayout();        }        #endregion        private System.Windows.Forms.TextBox tbPassword;
            private System.Windows.Forms.ComboBox cboxUsername;
            private System.Windows.Forms.CheckBox chkIsSave;
            private System.Windows.Forms.Button btnLogin;
            private System.Windows.Forms.Label label1;
            private System.Windows.Forms.Label label2;
        }
    }