C# 프로그램 개발

StreamWriter

toped2017 — Tue, 29 Dec 2020 17:34:32 +0900

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WinFormStreamWriter

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

SaveStreamWriter(DateTime.Now.ToString("yyyyMMddHHmmss") + ".log", "StreamWriter Test 내용");

}

public void SaveStreamWriter(string pFileName, string pTextStr)

{

try

{

string fleNm = Application.LocalUserAppDataPath + "\\" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".log";

using (StreamWriter sw = new StreamWriter(pFileName))

{

sw.WriteLine("---------------------------------------------------------------------");

sw.WriteLine(pTextStr);

sw.WriteLine("---------------------------------------------------------------------");

sw.Close();

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

SortedDictionary 사용법

toped2017 — Tue, 15 Oct 2019 22:57:19 +0900

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;

public void ExistKeyWord()

{

bool _KeyExists = false;

SortedDictionary _KeyWordList;

_KeyWordList = new SortedDictionary();

_KeyWordList.Add("public", 0);

_KeyWordList.Add("private", 1);

_KeyWordList.Add("abc", 2);

_KeyWordList.Add("abcdef", 3);

_KeyExists = _KeyWordList.Keys.Any(k => k.StartsWith("pu"));

Console.WriteLine(_KeyExists.ToString());

_KeyExists = _KeyWordList.Keys.Any(k => k.StartsWith("abck"));

Console.WriteLine(_KeyExists.ToString());

_KeyExists = _KeyWordList.Keys.Any(k => k.StartsWith("abcdef"));

Console.WriteLine(_KeyExists.ToString());

}

파일삭제

toped2017 — Mon, 16 Sep 2019 13:25:46 +0900

using System;

using System.IO;

using System.Windows.Forms;

public static bool DeleteFile(String FileName, bool pForce, ref String oErrMesg)

{

try

{

if (pForce == false)

{

DialogResult res = MessageBox.Show("Delete",

FileName + " Are you sure you want to delete the file",

MessageBoxButtons.YesNo);

if (res == DialogResult.Yes)

{

File.Delete(FileName);

return true;

}

else

return false;

}

else

{

File.Delete(FileName);

return true;

}

catch (System.IO.IOException e)

{

oErrMesg = e.Message;

return false;

}

파일 복사

toped2017 — Wed, 21 Aug 2019 09:37:31 +0900

using System;

using System.IO;

public static bool CopyFile(String pSourceFile, String pTargetFile, bool pOverWrite, ref String pErrorMessage)

{

try

{

File.Copy(pSourceFile, pTargetFile, pOverWrite);

return true;

}

catch (System.IO.IOException e)

{

pErrorMessage = e.Message;

return false;

}