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 WindowsFormsStyle { public partial class LoginForm : Form { protected string fileName = "login.dat"; string path = Directory.GetCurrentDirectory(); string file; /// <summary> /// /// </summary> public LoginForm() { InitializeComponent(); } /// <summary> /// 2011-11-2 塗聚文 /// 缔友计算机信息技术有限公司 /// 加载窗体 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void LoginForm_Load(object sender, EventArgs e) { file = path + "\\" + fileName; textBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend; textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource; if (File.Exists(file))//文件是否存在 { StreamReader sr = new StreamReader(file, true); string str = sr.ReadLine(); while (str != null) //判断是否为空 { if (!this.textBox1.AutoCompleteCustomSource.Contains(str))//记录是否存 { this.textBox1.AutoCompleteCustomSource.Add(str);//不存在添加 } str = sr.ReadLine(); } sr.Close(); } } /// <summary> /// 写入 /// 涂聚文 /// 缔友计算机信息技术有限公司 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sender, EventArgs e) { file = path + "\\" + fileName; textBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend; textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource; if (File.Exists(file)) { if(!this.textBox1.AutoCompleteCustomSource.Contains(this.textBox1.Text.Trim()))//判断记录是否存在 { StreamWriter sw=new StreamWriter(file,true); sw.WriteLine(this.textBox1.Text.Trim()); //写入记录 sw.Close();//关闭文件流 if(!this.textBox1.AutoCompleteCustomSource.Contains(this.textBox1.Text)) { this.textBox1.AutoCompleteCustomSource.Add(this.textBox1.Text); } } } this.Close(); } } }
时间: 2024-10-25 18:36:17