C#

c#: thread simple sample

F. Zomer — Mon, 01 Nov 2010 14:04:00 GMT

Thread tZH = new Thread(new ThreadStart(ZH308));
tZH.IsBackground = true;
tZH.Start();

Thread tHA = new Thread(new ThreadStart(HA304));
tHA.IsBackground = true;
tHA.Start();

----

void ZH308()
{ GetBerichtSoort("blabla"); }

void HA304()
{ GetBerichtSoort("blabla"); }

C#: Collect quickly directory names and loop through them

F. Zomer — Wed, 12 May 2010 12:32:00 GMT

//collect directory names and put them in an array
string[] mapnaam = System.IO.Directory.GetDirectories(@"C:\");

//loop through the array
foreach (string map in mapnaam)
{
//for each file found in the directory with the extension 'txt'
foreach (string filename in System.IO.Directory.GetFiles(map, "*.txt", System.IO.SearchOption.TopDirectoryOnly))
{
do something...
}
}

C#: using console colors

F. Zomer — Wed, 12 May 2010 12:27:00 GMT

Example:

Console.BackgroundColor = ConsoleColor.Blue;

Console.ForegroundColor = ConsoleColor.White;

Other colors are:(the colors are not exact, only an indication of it)

             Black
             DarkBlue
             DarkGreen
             DarkCyan
             DarkRed
             DarkMagenta
             DarkYellow
             Gray
             DarkGray
             Blue
             Green
             Cyan
             Red
             Magenta
             Yellow
             White

C#: using the sortedlist

F. Zomer — Mon, 10 May 2010 17:01:00 GMT

System.Collections.Generic.SortedDictionary<string, long> Dic = new SortedDictionary<string, long>();

.
..
...
....
...
..
.

Collect some key's and there values

//contains list already the key value (here represented by: ext)?
if (Dic.Keys.Contains(ext))
{
//found in list then add 1 to the value.
long i = Dic[ext]; // get the value for the key
i++;//add 1
Dic[ext] = i;//update value
}
else
{
//not? then add this key and set default value to 1.
Dic.Add(ext, 1);
}

.
..
...
....
...
..
.

Read out the sortedlist

//print dictionary e.g. to screen

foreach (var pair in Dic)
{
this.textBox1.AppendText(pair.ToString() + "\r\n");
Application.DoEvents();
}

//remove all entries
Dic.Clear();

Output will be like

[the key, the value]
[the key, the value]
[the key, the value]
[the key, the value]
etc, etc..

C#: function to write text to file

F. Zomer — Tue, 04 May 2010 15:56:00 GMT

//write value to given file
//value is the text to write
//path is the location of the text file

public void funcWriter(string value, string path)

{

using (System.IO.StreamWriter sw = new System.IO.StreamWriter(path, true))

{

sw.WriteLine(value);

sw.Flush();

}

C#: store all files from a directory in an array

F. Zomer — Tue, 04 May 2010 15:54:00 GMT

//read all files in directory and store them

string[] array1 = System.IO.Directory.GetFiles(lblPath.Text);

//process each file

foreach (string s in array1)

{

//do something

}

C#: read text file line by line

F. Zomer — Tue, 04 May 2010 10:02:00 GMT

using System;
using System.IO;

private void button1_Click(object sender, EventArgs e)

{

string path = @"c:\temp\MyTest.txt";

try

{

using ( System.IO.StreamReader sr = new System.IO.StreamReader(path))

{

while (sr.Peek() >= 0)

{

Console.WriteLine(sr.ReadLine());

}

catch (Exception)

{

Console.WriteLine("The process failed: {0}", e.ToString());

}

C#: folderbrowserdialog

F. Zomer — Tue, 04 May 2010 09:48:00 GMT

private void btnDirectory_Click(object sender, EventArgs e)

{

FolderBrowserDialog folderBrowserDialog1 = new FolderBrowserDialog();

string folderName="";

DialogResult result = folderBrowserDialog1.ShowDialog();

if (result == DialogResult.OK)

{

folderName = folderBrowserDialog1.SelectedPath;

}

Console.WriteLine("Selected path: {0}",folderName);

}

c#: my DAO class

F. Zomer — Wed, 14 Apr 2010 11:28:00 GMT

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Data;

using System.Data.SqlClient;

namespace CVZ_GGZ

{

class clDAO

{

static string connectionString = "server=XXX;database=XXX;uid=XXX;pwd=XXX";

static SqlConnection conn = new SqlConnection(connectionString);

//scalar

public static String execScalar(String querytext)

{

object result;

SqlCommand cmd = conn.CreateCommand();

cmd.CommandText = querytext;

try

{

if (conn.State != System.Data.ConnectionState.Open)

{

conn.Close();

conn.Open();

}

result = cmd.ExecuteScalar();

return result.ToString();

}

finally

{

if (conn.State != System.Data.ConnectionState.Closed)

{

conn.Close();

}

public static void execNonQuery(String querytext)

{

int rowCount;

if (conn.State != System.Data.ConnectionState.Open)

{

conn.Close();

conn.Open();

}

SqlCommand cmd = conn.CreateCommand();

cmd.CommandText = querytext;

try

{

rowCount = cmd.ExecuteNonQuery();

}

finally

{

if (conn.State != System.Data.ConnectionState.Closed)

{

conn.Close();

}

//returns in this case a filles strinbuilder

public static System.Text.StringBuilder ExecuteReader(String querytext)

{

System.Text.StringBuilder sb = new StringBuilder();

SqlCommand myCommand = new SqlCommand(querytext, conn);

           if (conn.State != System.Data.ConnectionState.Open)
           {
           conn.Close();
           conn.Open();
           }

SqlDataReader myReader = myCommand.ExecuteReader(CommandBehavior.CloseConnection);

while (myReader.Read())

{

//Console.WriteLine(myReader.GetString(0));

sb.Append(myReader.GetString(0).ToString().PadLeft(1, '0'));

sb.Append(myReader.GetString(1).ToString().PadLeft(9, '0'));

sb.Append(myReader.GetInt32(2).ToString().PadLeft(8, '0'));

// ...etc... fill in your own values.

}

myReader.Close();

//Implicitly closes the connection because CommandBehavior.CloseConnection was specified.

return sb;

}

c#: format a date

F. Zomer — Wed, 03 Mar 2010 16:13:00 GMT

DateTime d = DateTime.Parse("12/31/2010");
Console.WriteLine(d.ToString("dd/MM/yyyy"));
Console.ReadLine();

or

DateTime d = DateTime.Parse(System.DateTime.Now.ToString());
string date= d.ToString("yyyyMMdd");
Console.WriteLine(date);