Proxy scraper error

Question

I have made up a proxy program but I am having some problems with it - specifically these two errors.

Error 1

    Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement and this

Error 2

    'System.Windows.Forms.ListBox.ObjectCollection' does not contain a definition for 'Item' and no extension method 'Item' accepting a first argument of type 'System.Windows.Forms.ListBox.ObjectCollection' could be found (are you missing a using directive or an assembly reference?)

Here is my C# file:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Login
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            System.Net.WebRequest request = System.Net.HttpWebRequest.Create("http://awmproxy.net/freeproxy.php");
            System.Net.WebResponse response = request.GetResponse();
            System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
            string newestversion = sr.ReadToEnd();
            System.Text.RegularExpressions.Regex expression = new System.Text.RegularExpressions.Regex("[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}:[0-9]{1,5}");
            System.Text.RegularExpressions.MatchCollection mtac = expression.Matches(code);
            foreach (Match itemcode in mtac)
            {
                listBox1.Items.Add(itemcode);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if ((listBox1.Items.Count == 0))
            {
                MessageBox.Show("Please Scrape Proxies First.", "ALERT!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                System.IO.StreamWriter S_W;
                string[] itms;
                listBox1.Items.ToString;
                SaveFileDialog save = new SaveFileDialog();
                int it;
                save.FileName = "Grabbed Proxies";
                save.Filter = "Grabbed Proxies (*.txt)|*.txt|ALL Files (*.*)|*.*";
                save.CheckPathExists = true;
                save.ShowDialog(this);
                S_W = new System.IO.StreamWriter(save.FileName);
                for (it = 0; (it
                            <= (listBox1.Items.Count - 1)); it++)
                {
                    S_W.WriteLine(listBox1.Items.Item[it]);
                }

                S_W.Close();
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            listBox1.Items.Clear();
        }

        public string code { get; set; }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
    }


}

Answer 1

Q1. you need to drop "ListBox" UI Item to your form from toolbox.

"listBox1.Items.Item[it]" is wrong, you need to code "listBox1.Items[it]" like this

"listBox1.Items[].ToString" is wrong, you need to code "listBox1.SelectedItems[1].ToString()" like this

Q2.  I check your code has not got any problem.

Maybe you may check it .Net Framwork version.  (.Net framework 4 or later)

Because you have used LINQ. It depends on .Net framework 4.

To check your reference , you may add reference if it hasn't done it.

Or you may create windows form project again to check  where you did wrong in process.

Answer 2

thanks 4 getting back to me i'm using a login section and this is my forum 2 page and when i run it i get the above errors i'm not sure why i'm getting it i'm a bit lost

Answer 3

Your three buttons event-listener need to move on Form1.cs.

This my sample result：

Your Form1.Designer.cs I coded it and changed a little bit. It can run. Then you can code it.

partial class Form1
{
	/// <summary>
	/// Required designer variable.
	/// </summary>
	private System.ComponentModel.IContainer components = null;

	/// <summary>
	/// Clean up any resources being used.
	/// </summary>
	/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
	protected override void Dispose(bool disposing)
	{
		if (disposing && (components != null))
		{
			components.Dispose();
		}
		base.Dispose(disposing);
	}

	#region Windows Form Designer generated code

	/// <summary>
	/// Required method for Designer support - do not modify
	/// the contents of this method with the code editor.
	/// </summary>
	private void InitializeComponent()
	{
		this.listBox1 = new System.Windows.Forms.ListBox();
		this.button1 = new System.Windows.Forms.Button();
		this.button2 = new System.Windows.Forms.Button();
		this.button3 = new System.Windows.Forms.Button();
		this.SuspendLayout();
		// 
		// listBox1
		// 
		this.listBox1.AccessibleName = "";
		this.listBox1.FormattingEnabled = true;
		this.listBox1.ItemHeight = 12;
		this.listBox1.Location = new System.Drawing.Point(83, 65);
		this.listBox1.Name = "listBox1";
		this.listBox1.Size = new System.Drawing.Size(120, 88);
		this.listBox1.TabIndex = 0;
		// 
		// button1
		// 
		this.button1.Location = new System.Drawing.Point(12, 207);
		this.button1.Name = "button1";
		this.button1.Size = new System.Drawing.Size(75, 23);
		this.button1.TabIndex = 1;
		this.button1.Text = "button1";
		this.button1.UseVisualStyleBackColor = true;
		this.button1.Click += new System.EventHandler(this.button1_Click_1);
		// 
		// button2
		// 
		this.button2.Location = new System.Drawing.Point(104, 207);
		this.button2.Name = "button2";
		this.button2.Size = new System.Drawing.Size(75, 23);
		this.button2.TabIndex = 2;
		this.button2.Text = "button2";
		this.button2.UseVisualStyleBackColor = true;
		this.button2.Click += new System.EventHandler(this.button2_Click_1);
		// 
		// button3
		// 
		this.button3.Location = new System.Drawing.Point(197, 207);
		this.button3.Name = "button3";
		this.button3.Size = new System.Drawing.Size(75, 23);
		this.button3.TabIndex = 3;
		this.button3.Text = "button3";
		this.button3.UseVisualStyleBackColor = true;
		this.button3.Click += new System.EventHandler(this.button3_Click_1);
		// 
		// Form1
		// 
		this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
		this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
		this.ClientSize = new System.Drawing.Size(284, 261);
		this.Controls.Add(this.button3);
		this.Controls.Add(this.button2);
		this.Controls.Add(this.button1);
		this.Controls.Add(this.listBox1);
		this.Name = "Form1";
		this.Text = "Form1";
		this.ResumeLayout(false);

	}

	public string code { get; set; }

	private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
	{

	}
	#endregion

	private ListBox listBox1;
	private Button button1;
	private Button button2;
	private Button button3;
}

Answer 4

do u think you could help me over skype please i would really appreciate it very much so i can understand what you are saying

Answer 5

This is my Login

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using BetterSeal;

namespace Login
{
    public partial class Form1 : Form
    {
        Seal Seal = new Seal();
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string username = textBox1.Text;
            string password = textBox2.Text;
            LoginResponse response = Seal.Login(username, password);
            Console.WriteLine(response.status);
            if (response.status)
            {
                MessageBox.Show("Success! Welcome" + response.username);
                this.Hide();
                Form2 f2 = new Form2();
                f2.FormClosing += (s, args) => this.Close();
                f2.Show();
            }
            else
                MessageBox.Show("ERROR: " + response.info); 
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            AuthResponse response = Seal.Authenticate("Better Seal Code Here");
            if (!response.status)
            {
                Console.WriteLine("Auth failed");
                Environment.Exit(0);
            }
            
            {
                
            }
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            string username = textBox1.Text;
            string password = textBox2.Text;
            string license = textBox3.Text;
            RegisterResponse responcse = Seal.Register(username, password, license);
            Console.WriteLine(responcse.status);
            if (responcse.status)
            {
                MessageBox.Show("Thank you for Redeeming a License!");
                //dsa/da
            }
            else
                MessageBox.Show(responcse.info);
        }

     }
    
}

Answer 6

do u think you could help me over skype please i would really appreciate it very much so i can understand what you are saying

I couldn't do it right now, but I can give you my sample project 

I don't change a lot, just make it can be run, so you can compare what different with it, you may download it.

Answer 7

ok i'm fixing it up know and i have one code error and it is

The method or operation is not implemented.

Error:

    The variable 'itms' is declared but never used   

Answer 8

ok i'm fixing it up know and i have one code error and it is

The method or operation is not implemented.

Error:

    The variable 'itms' is declared but never used   

It's just a notice that to tell you you have delared a variable but it's not be used. you can delete it. It still can run if you ignore it.

Answer 9

ok this has happened know sry to ask u all these questions

The method or operation is not implemented.

throw new System.NotImplementedException();

Answer 10

Debugger:Exception Intercepted: button1_Click_1, Form1.cs line 32
An exception was intercepted and the call stack unwound to the point before the call from user code where the exception occurred.  "Unwind the call stack on unhandled exceptions" is selected in the debugger options.
Time: 15/08/2017 5:13:33 PM
Thread:Main Thread[9720]

Answer 11

It's ok. it will be my honor. Hope can help you.

To 「The method or operation is not implemented.
throw new Exception("The method or operation is not implemented.");」

That's mean you need to code some return Exception message  if your code runs wrong. 

So How can we get or do from those options?

1. You can deal erros or exception when your function run  by your logic and some sitation, Like user's Behaviors you.
2. Be able to get some infomation that you can know what happen when you're debuging.

Answer 12

i'm running your code that u gave me to see how it works but it keeps giving me the erorrs like this one

Debugger:Exception Intercepted: button1_Click_1, Form1.cs line 32

An exception was intercepted and the call stack unwound to the point before the call from user code where the exception occurred.  "Unwind the call stack on unhandled exceptions" is selected in the debugger options.

Answer 13

i'm running your code that u gave me to see how it works but it keeps giving me the erorrs like this one

Debugger:Exception Intercepted: button1_Click_1, Form1.cs line 32

An exception was intercepted and the call stack unwound to the point before the call from user code where the exception occurred.  "Unwind the call stack on unhandled exceptions" is selected in the debugger options.

Pardon me!

Is it a result that you need below the image？

Answer 14

yes but when i run it it's not working i don't understand what i'm doing wrong

Answer 15

if i could upload some pic i could show you what is happening so u can understand what is going wrong

Answer 16

when build it then run it from the debug folder i get this error

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentNullException: Value cannot be null.
Parameter name: input
   at System.Text.RegularExpressions.Regex.Matches(String input)
   at WFAExample1.Form1.button1_Click_1(Object sender, EventArgs e) in j:\Jdownloads\Cracking\Proxy.Project\BetterSeal\WFAExample1\WFAExample1\Form1.cs:line 32
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
WFAExample1
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///J:/Jdownloads/Cracking/Proxy.Project/BetterSeal/WFAExample1/WFAExample1/bin/Debug/WFAExample1.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1590.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Answer 17

You just change it below：

"System.Text.RegularExpressions.MatchCollection mtac = expression.Matches(code);"

to

"System.Text.RegularExpressions.MatchCollection mtac = expression.Matches(newestversion);"

Beacuae the result httprequest response is pass to "newestversion", so you don't need this "code" variable.

Answer 18

ok that worked know i'm going to add my login and then i will check the form around so it will login 1st then go to the scraper i will let you know how i go thanks so much m8 4 your help

Answer 19

ok that worked know i'm going to add my login and then i will check the form around so it will login 1st then go to the scraper i will let you know how i go thanks so much m8 4 your help

Your welcome！ :）　（Don't forget to give me as "as best answer"　ＸＤＤ）

Answer 20

ok that worked know i'm going to add my login and then i will check the form around so it will login 1st then go to the scraper i will let you know how i go thanks so much m8 4 your help

Your welcome！ :）　（Don't forget to give me as "as best answer"　ＸＤＤ）

Yes he is very help full well done m8 keep safe talk soon

Answer 21

ok that worked know i'm going to add my login and then i will check the form around so it will login 1st then go to the scraper i will let you know how i go thanks so much m8 4 your help

Your welcome！ :）　（Don't forget to give me as "as best answer"　ＸＤＤ）

Yes he is very help full well done m8 keep safe talk soon

you need to do "Mark as answer"

Answer 22

Hi m8 hows thing i have come up with another problem if you can help me i will finish this threat of

Type 'Proxy_Project.Form2' already defines a member called 'Form2_Load' with the same parameter types   

Answer 23

Hi m8 hows thing i have come up with another problem if you can help me i will finish this threat of

Type 'Proxy_Project.Form2' already defines a member called 'Form2_Load' with the same parameter types   

That means you have defined the same "Form2_Load", you could do "Shift+Ctrl+F", then it will show out a windows let you can search by keyword.

you could type it then find it out. remember, "Look in" you have to set up "Entire Solutaion".

I think you will find two defined of names if you do search keyword.

Answer 24

ok i got it to work but it wont scrap the proxies i'm lost atm

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Proxy_Project
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            System.Net.WebRequest request = System.Net.HttpWebRequest.Create("http://awmproxy.net/777proxy.txt");
            System.Net.WebResponse response = request.GetResponse();
            System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
            string newestversion = sr.ReadToEnd();
            System.Text.RegularExpressions.Regex expression = new System.Text.RegularExpressions.Regex("[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}:[0-9]{1,5}");
            System.Text.RegularExpressions.MatchCollection mtac = expression.Matches(newestversion);
            foreach (Match itemcode in mtac)
            {
                listBox1.Items.Add(itemcode);
            }
        }

        private void button2_Click_1(object sender, EventArgs e)
        {
            if ((listBox1.Items.Count == 0))
            {
                MessageBox.Show("Please Scrape Proxies First.", "ALERT!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                System.IO.StreamWriter S_W;
                string[] itms;
                SaveFileDialog save = new SaveFileDialog();
                int it;
                save.FileName = "Grabbed Proxies";
                save.Filter = "Grabbed Proxies (*.txt)|*.txt|ALL Files (*.*)|*.*";
                save.CheckPathExists = true;
                save.ShowDialog(this);
                S_W = new System.IO.StreamWriter(save.FileName);
                for (it = 0; (it
                            <= (listBox1.Items.Count - 1)); it++)
                {
                    S_W.WriteLine(listBox1.Items[it]);
                }

                S_W.Close();
            }
        }

        private void button3_Click_1(object sender, EventArgs e)
        {
            listBox1.Items.Clear();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void Form2_Load(object sender, EventArgs e)
        {

        }
    }
}

Answer 25

You can't use url "http://awmproxy.net/777proxy.txt"

you must use awmproxy.net gives you one api url such as "http://awmproxy.net/freeproxy.php". this api will give you regular result.

Unless you change your code logic to analysis result of string.

Answer 26

how can i change it to txt not php can you do this or not i hope so i really need this to be TxT

Answer 27

how can i change it to txt not php can you do this or not i hope so i really need this to be TxT

Is it a result that you want below the image？

Answer 28

Yes this is it can you please send it to me please thanks so much

can u make it as the code as above so then i can just copy and paste it in

Answer 29

Yes this is it can you please send it to me please thanks so much

can u make it as the code as above so then i can just copy and paste it in

Done

Answer 30

can u send i private link so i can send you my project to make it work all togeather

Answer 31

can u send i private link so i can send you my project to make it work all togeather

you could upload it to google drive then give me a public url.

Answer 32

register and add the forum 2 part for me please so then i know it will work

Done

Answer 33

thanks so much your the best

Answer 34

Can you please delete this link so no body try to change it on me I have downloaded it and it works very well

Answer 35

Can you please delete this link so no body try to change it on me I have downloaded it and it works very well

Done

Answer 36

register and add the forum 2 part for me please so then i know it will work

Done

And this one to please and I will finish this off

Answer 37

Done

Answer 38

Thanks so much for your time and knowledge you know you stuff I thanks you very much keep safe talk soon

Answer 39

Thanks so much for your time and knowledge you know you stuff I thanks you very much keep safe talk soon

your welcome : )

Answer 40

Can i ask you one more thing if i want to add another

System.Net.WebRequest request = System.Net.HttpWebRequest.Create

so it will scrape from 2 site not just one what will i have to add to make that do that.

Answer 41

Thanks so much for your time and knowledge you know you stuff I thanks you very much keep safe talk soon

your welcome : )

How do I add another URL so I can download from more the one site

Answer 42

Hi  Punisher75,

I am glad to know you solved. Thank you for closed the thread by marking helpful solution as an answer. This will help other members to find the solution quickly if they have faced the similar issue.

Note: Please remember to close your threads by marking helpful posts as answer and then start a new thread if you have a new question. Please don't ask several questions in the same thread.

Best Regards,

Yohann Lu

---

MSDN Community Support
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