/// <summary> /// 添加 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sender, EventArgs e) { BinaryWriter binWriter = new BinaryWriter(File.OpenWrite(datfile), Encoding.Unicode);//StreamWriter binWriter.Seek(0, SeekOrigin.End); num =int.Parse(this.textBox1.Text.Trim()); strsex = this.textBox2.Text.Trim(); strname = this.textBox3.Text.Trim(); creatdate =this.dateTimePicker1.Value; binWriter.Write(num); binWriter.Write(strsex); binWriter.Write(strname); binWriter.Write(creatdate.ToShortDateString() + Environment.NewLine); binWriter.Flush(); binWriter.Close(); } /// <summary> /// 顯示全部 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button2_Click(object sender, EventArgs e) { //創建文件 //Write out to binary file //if (!File.Exists(datfile)) //{ // FileStream myFile = File.Create(datfile); // myFile.Close(); //} //strsex = "男"; //num = 124; //creatdate = DateTime.Now; //strname = "塗聚文geovindu"; //BinaryWriter binWriter = new BinaryWriter(File.OpenWrite(datfile), Encoding.Unicode);//StreamWriter //binWriter.Write(num); //binWriter.Write(strsex); //binWriter.Write(strname); //binWriter.Write(creatdate.ToShortDateString() + Environment.NewLine); ////binWriter.Seek(1, SeekOrigin.Begin); //strsex = "男"; //num = 125; //creatdate = DateTime.Now; //strname = "劉志軍"; ////BinaryWriter binWriter = new BinaryWriter(File.OpenWrite(datfile)); //binWriter.Write(num); //binWriter.Write(strsex); //binWriter.Write(strname); //binWriter.Write(creatdate.ToShortDateString() + Environment.NewLine); ////binWriter.Seek(2, SeekOrigin.Current); //strsex = "女"; //num = 126; //creatdate = DateTime.Now; //strname = "孩子"; ////BinaryWriter binWriter = new BinaryWriter(File.OpenWrite(datfile)); //binWriter.Write(num); //binWriter.Write(strsex); //binWriter.Write(strname); //binWriter.Write(creatdate.ToShortDateString() + Environment.NewLine); ////binWriter.Seek(3, SeekOrigin.Current); //binWriter.Flush(); //binWriter.Close(); //Read from binary file //最一條 //byte[] bs; //using (FileStream fs = new FileStream(datfile, FileMode.Open, FileAccess.Read)) //{ // using (BinaryReader br = new BinaryReader(fs)) // { // bs = br.ReadBytes((int)fs.Length); // } //} //foreach (byte detail in bs) //{ // Console.WriteLine(detail); //} dt = null; dt = new DataTable(); dt.Columns.Add("ID", typeof(int)); dt.Columns.Add("Sex", typeof(string)); dt.Columns.Add("ReName", typeof(string)); dt.Columns.Add("CreateTime", typeof(DateTime)); using (BinaryReader binaryReader = new BinaryReader(File.Open(datfile, FileMode.Open), Encoding.Unicode)) { //binaryReader.BaseStream.Seek(0, SeekOrigin.Begin); //1 //while (true) //{ // num = binaryReader.ReadInt32(); // strsex = binaryReader.ReadString(); // strname = binaryReader.ReadString(); // creatdate = DateTime.Parse(binaryReader.ReadString()); // //data.Add(k, v); // if (binaryReader.BaseStream.Position == binaryReader.BaseStream.Length) // break; //} // //2 while (binaryReader.PeekChar() != -1) { try { num = binaryReader.ReadInt32(); strsex = binaryReader.ReadString(); strname = binaryReader.ReadString(); creatdate = DateTime.Parse(binaryReader.ReadString()); dt.Rows.Add(num, strsex, strname, creatdate); } catch (Exception ex) { ex.Message.ToString(); break; } } binaryReader.Close(); } //BinaryReader binReader = new BinaryReader(File.OpenRead(datfile), Encoding.Unicode); //num = binReader.ReadInt32(); //strsex = binReader.ReadString(); //strname = binReader.ReadString(); //creatdate = DateTime.Parse(binReader.ReadString()); this.textBox1.Text = num.ToString(); this.textBox2.Text = strsex; this.textBox3.Text = strname; this.dateTimePicker1.Value = creatdate; //binReader.PeekChar(); //num = binReader.ReadInt32(); //this.textBox4.Text = num.ToString(); //binReader.Close(); this.dataGridView1.DataSource = dt; } /// <summary> /// /// </summary> /// <param name="FilePath"></param> /// <param name="buff"></param> public static void WriteBuffer(string FilePath, byte[] buff) { StreamWriter Writer = File.AppendText(FilePath); foreach (byte i in buff) Writer.BaseStream.WriteByte(i); Writer.Close(); } /// <summary> /// 查找 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button3_Click(object sender, EventArgs e) { string s = this.textBox4.Text.Trim(); using (BinaryReader binaryReader = new BinaryReader(File.Open(datfile, FileMode.Open), Encoding.Unicode)) { //binaryReader.BaseStream.Seek(0, SeekOrigin.Begin); //1 //while (true) //{ // num = binaryReader.ReadInt32(); // strsex = binaryReader.ReadString(); // strname = binaryReader.ReadString(); // creatdate = DateTime.Parse(binaryReader.ReadString()); // //data.Add(k, v); // if (binaryReader.BaseStream.Position == binaryReader.BaseStream.Length) // break; //} // //2 while (binaryReader.PeekChar() != -1) { try { num = binaryReader.ReadInt32(); strsex = binaryReader.ReadString(); strname = binaryReader.ReadString(); creatdate = DateTime.Parse(binaryReader.ReadString()); if (strname.Contains(s)) { this.label2.Text=binaryReader.BaseStream.Position.ToString(); this.label3.Text =(binaryReader.BaseStream.Length-binaryReader.BaseStream.Seek(0, SeekOrigin.Current)).ToString(); setCurrent = binaryReader.BaseStream.Seek(0, SeekOrigin.Current); //binaryReader.BaseStream.Seek((binaryReader.BaseStream.Position / 50) * 50, 0); this.textBox1.Text = num.ToString(); this.textBox2.Text = strsex; this.textBox3.Text = strname; this.dateTimePicker1.Value = creatdate; } } catch (Exception ex) { ex.Message.ToString(); break; } } binaryReader.Close(); } } /// <summary> /// 修改,創建 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button4_Click(object sender, EventArgs e) { #region 創建 塗聚文 20130329 //if (File.Exists(datfile)) //{ // File.Delete(datfile); //} //dt = null; //dt = new DataTable(); //dt.Columns.Add("ID", typeof(int)); //dt.Columns.Add("Sex", typeof(string)); //dt.Columns.Add("ReName", typeof(string)); //dt.Columns.Add("CreateTime", typeof(DateTime)); //dt.Rows.Add(1, "男", "塗聚文", "2013-03-1"); //dt.Rows.Add(2, "女", "王熙鳳", "2013-03-11"); //dt.Rows.Add(3, "女", "劉麗", "2013-03-21"); //dt.Rows.Add(4, "男", "劉海粟", "2013-03-3"); //dt.Rows.Add(5, "男", "高春輝", "2013-03-5"); //BinaryWriter binWriter = new BinaryWriter(File.OpenWrite(datfile), Encoding.Unicode);//StreamWriter ////binWriter.BaseStream.Seek(0, SeekOrigin.Current); //////binWriter.Seek((int)setCurrent, SeekOrigin.Current);//定位有問題 //foreach (DataRow dr in dt.Rows) //{ // num=(int)dr["ID"]; // strsex =(string) dr["Sex"]; // strname = (string)dr["ReName"]; // creatdate =(DateTime)dr["CreateTime"]; // binWriter.Write(num); // binWriter.Write(strsex); // binWriter.Write(strname); // binWriter.Write(creatdate.ToShortDateString() + Environment.NewLine); //+ Environment.NewLine //加一行，成了現在的行 //} //binWriter.Flush(); //binWriter.Close(); #endregion //num = int.Parse(this.textBox1.Text.Trim()); //strsex = this.textBox2.Text.Trim(); //strname = this.textBox3.Text.Trim(); //creatdate = this.dateTimePicker1.Value; //binWriter.Write(num); //binWriter.Write(strsex); //binWriter.Write(strname); //binWriter.Write(creatdate.ToShortDateString()); //+ Environment.NewLine //加一行，成了現在的行 //binWriter.Flush(); //binWriter.Close(); //using (BinaryReader binaryReader = new BinaryReader(File.Open(datfile, FileMode.Open), Encoding.Unicode)) //{ // while (binaryReader.PeekChar() != -1) // { // //binaryReader.BaseStream.Seek(setCurrent, SeekOrigin.Begin); // num = binaryReader.ReadInt32(); // strsex = binaryReader.ReadString(); // strname = binaryReader.ReadString(); // creatdate = DateTime.Parse(binaryReader.ReadString()); // this.textBox1.Text = num.ToString(); // this.textBox2.Text = strsex; // this.textBox3.Text = strname; // this.dateTimePicker1.Value = creatdate; // } //} #region 修改 BinaryWriter binWriter = new BinaryWriter(File.OpenWrite(datfile), Encoding.Unicode);//StreamWriter binWriter.BaseStream.Position = 0; num = 8;// int.Parse(this.textBox1.Text.Trim()); strsex = "女";// this.textBox2.Text.Trim(); //strname = this.textBox3.Text.Trim(); //creatdate = this.dateTimePicker1.Value; binWriter.Write(num); binWriter.BaseStream.Position = 4; binWriter.Write(strsex); //binWriter.Write(strname); //binWriter.Write(creatdate.ToShortDateString()); //+ Environment.NewLine //加一行，成了現在的行 binWriter.Flush(); binWriter.Close(); #endregion #region 查找數據位置 cudt = null; cudt = new DataTable(); cudt.Columns.Add("ID", typeof(int)); cudt.Columns.Add("Position", typeof(int)); cudt.Columns.Add("Legnth", typeof(int)); cudt.Columns.Add("Sart", typeof(int)); cudt.Columns.Add("End", typeof(int)); cudt.Columns.Add("Name", typeof(string)); cudt.Columns.Add("Value", typeof(string)); int pos = 0; int row = 0; int p = 0; int br = 0; string s = ""; int starpos = 0; int endpos = 0; // 1. using (BinaryReader b = new BinaryReader(File.Open(datfile, FileMode.Open, FileAccess.Read),Encoding.Unicode)) { // 2. // Position and length variables. // 2A. // Use BaseStream. int length = (int)b.BaseStream.Length; int k = 0; while (b.PeekChar() != -1)//pos < length { try { starpos = (int)b.BaseStream.Position; // num = b.ReadInt32(); p = (int)b.BaseStream.Position; endpos = (int)b.BaseStream.Position; pos = p; // b.BaseStream.Seek(pos, SeekOrigin.Current); br = (int)b.BaseStream.Length-p; s = b.GetType().ToString(); cudt.Rows.Add(row, pos, br, starpos, endpos, s,num.ToString());//添加第一記錄 //第二條記錄 starpos = (int)b.BaseStream.Position; strsex = b.ReadString(); p = (int)b.BaseStream.Position; endpos = p; pos = p; br = (int)b.BaseStream.Length-p; s = b.GetType().ToString(); cudt.Rows.Add(row, pos, br, starpos, endpos, s,strsex);//添加第二條記錄 //第三第記錄 starpos=(int)b.BaseStream.Position; strname = b.ReadString(); p = (int)b.BaseStream.Position; endpos = p; pos = p; // b.BaseStream.Seek(pos, SeekOrigin.Current); br = (int)b.BaseStream.Length - p; s = b.GetType().ToString(); cudt.Rows.Add(row, p, br, starpos, endpos, s,strname);//添加第三條記錄 //第四條記錄 starpos = (int)b.BaseStream.Position; creatdate = DateTime.Parse(b.ReadString()); p = (int)b.BaseStream.Position; endpos = p; pos = p; br = (int)b.BaseStream.Length - p; s = b.GetType().ToString(); cudt.Rows.Add(row, p, br, starpos, endpos, s, creatdate);//第四記錄 k++; } catch (Exception ex) { ex.Message.ToString(); break; } // 4. // Advance our position variable. pos += sizeof(int); row++; } //b.BaseStream.Seek(7, SeekOrigin.Current); //string f=b.ReadString(); //MessageBox.Show(f); //指定位顯示 b.BaseStream.Position = 0; MessageBox.Show(b.ReadInt32().ToString()); b.BaseStream.Position = 4; MessageBox.Show(b.ReadString()); b.BaseStream.Position = 7; MessageBox.Show(b.ReadString()); b.Close(); } this.dataGridView2.DataSource = cudt; #endregion } /// <summary> /// /// </summary> /// <param name="sectorid"></param> /// <returns></returns> //public string getclientid(string sectorid) //{ // try // { // DataSet dsobj = new DataSet(); // bllobj = new ConverterClass(); // string retclientval = "0"; // dsobj = bllobj.BinaryDeSerialize(strDataPath + "\\" + "BinaryClientlocation.dat"); // DataRow[] dr = dsobj.Tables[0].Select("client_location_id in(" + locationid + ")"); // if (dr.Length > 0) // { // foreach (DataRow drow in dr) // { // retclientval = retclientval + "," + drow["client_id"].ToString(); // } // } // return retclientval; // } // catch (Exception ex) // { // ex.Message.ToString(); // } //} }
