C# Profesyonel 2022: Ocak 2016

29 Ocak 2016 Cuma

Listbox eleman silme

try

{

//listboxda seçileni silmek için

int index = listBox1.SelectedIndex; // index değerini aldık

listBox1.Items.Remove(listBox1.SelectedItems[index]);

// alınan index değerine göre siler ( mouse ile istediğini seçmen lazm )

MessageBox.Show("silme başarılı");

}

catch

{

MessageBox.Show("Birşey Seç Lütfen");

}

c# email kontrol

public void emailkontrol(string emailadress)

{

string strRegex = @"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}" + // email tip

@"\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\" +

@".)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$";

Regex re = new Regex(strRegex);

if (re.IsMatch(emailadress)) // eğer gelen veri email tpinde ise

{

MessageBox.Show("Email formatında(UYGUN)");

}

else

{

MessageBox.Show("Email Formatında değil!");

}

}

28 Ocak 2016 Perşembe

c# paralel

List<string> sites = new List<string>

{

"www.yahoo.com",

"www.google.com",

"www.aspsnippets.com"

};

List<PingReply> pingReplies = new List<PingReply>();

System.Threading.Tasks.Parallel.ForEach(sites, site =>

{

    Ping p = new Ping();

    lock (pingReplies)

{

        pingReplies.Add(p.Send(site));

}

});

foreach (var s in pingReplies.ToList())

{

    Response.Write(s.Address + ": " + s.RoundtripTime + ": " + s.Status + "<br />");

}

c# list

string[] lines = File.ReadAllLines(txtProxyListPath.Text);
List<string> list_lines = new List<string>(lines);
Parallel.ForEach(list_lines, line =>
{
    //Your stuff
});

c# task

async Task<int> AccessTheWebAsync()
{ 
    // You need to add a reference to System.Net.Http to declare client.
    HttpClient client = new HttpClient();

    // GetStringAsync returns a Task<string>. That means that when you await the
    // task you'll get a string (urlContents).
    Task<string> getStringTask = client.GetStringAsync("http://msdn.microsoft.com");

    // You can do work here that doesn't rely on the string from GetStringAsync.
    DoIndependentWork();

    // The await operator suspends AccessTheWebAsync.
    //  - AccessTheWebAsync can't continue until getStringTask is complete.
    //  - Meanwhile, control returns to the caller of AccessTheWebAsync.
    //  - Control resumes here when getStringTask is complete. 
    //  - The await operator then retrieves the string result from getStringTask.
    string urlContents = await getStringTask;

    // The return statement specifies an integer result.
    // Any methods that are awaiting AccessTheWebAsync retrieve the length value.
    return urlContents.Length;
}




The numbers in the diagram correspond

26 Ocak 2016 Salı

yandex api

24 Ocak 2016 Pazar

shell32

Right click project
Click Add reference
Click .COM tab in Add reference dialogue
Select Microsoft Shell Controls and Automation

c# zip işlemi

using System;
using System.IO;
using System.IO.Compression;

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            string startPath = @"c:\example\start";
            string zipPath = @"c:\example\result.zip";
            string extractPath = @"c:\example\extract";

            ZipFile.CreateFromDirectory(startPath, zipPath);

            ZipFile.ExtractToDirectory(zipPath, extractPath);
        }
    }
}

net 4.5 gereklidir.

c# yüklü programların listesi

public partial class Form1 : Form 
    { 
        public Form1() 
        { 
            InitializeComponent(); 
        } 
             
 
    private void LoadSoftwareList() 
    { 
        listBox1.Items.Clear(); 
        ManagementObjectCollection moReturn;   
        ManagementObjectSearcher moSearch; 
 
        moSearch = new ManagementObjectSearcher("Select * from Win32_Product"); 
 
        moReturn = moSearch.Get(); 
       foreach(ManagementObject mo in moReturn) 
       { 
           listBox1.Items.Add(mo["Name"].ToString()); 
       } 
 
    } 
 
 
        private void Form1_Load(object sender, EventArgs e) 
        { 
            LoadSoftwareList(); 
        }

c# açık olan formların ismi

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.Data.SqlClient;
namespace WindowsFormsApplication1
{
public partial class Form3 : Form
{
public Form3()
{
InitializeComponent();
}
private void Form3_Load(object sender, EventArgs e)
{
label3.Text = Application.OpenForms.Count.ToString();
foreach (Form frm in Application.OpenForms)
{
label1.Text = frm.Name;
}
}
private void button1_Click(object sender, EventArgs e)
{
Form1 frm1 = new Form1();
frm1.Show();
}
private void button2_Click(object sender, EventArgs e)
{
Form2 frm2 = new Form2();
frm2.Show();
}
private void button3_Click(object sender, EventArgs e)
{
label3.Text = Application.OpenForms.Count.ToString();
label1.Text = "";
foreach (Form frm in Application.OpenForms)
{
label1.Text += frm.Name + "\n";
}
}
}
}