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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Text;
using System.Net.Sockets;
namespace MainSoftChatClient
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox txtNick;
private System.Windows.Forms.Button btnConnect;
private System.Windows.Forms.Button btnSend;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox txtIP;
private System.Windows.Forms.TextBox txtPort;
private System.Windows.Forms.Label label3;
internal System.Windows.Forms.TextBox txtChatroom;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
char crLF = (char) 10;
char crCR = (char) 13;
private TcpClient myClient;
private byte[] myData = new byte[1024];
string strMyName;
private System.Windows.Forms.TextBox txtSend;
private System.Windows.Forms.PictureBox pictureBox1;
private StringBuilder myText = new StringBuilder();
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (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()
{
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
this.label1 = new System.Windows.Forms.Label();
this.txtNick = new System.Windows.Forms.TextBox();
this.btnConnect = new System.Windows.Forms.Button();
this.txtSend = new System.Windows.Forms.TextBox();
this.btnSend = new System.Windows.Forms.Button();
this.label2 = new System.Windows.Forms.Label();
this.txtIP = new System.Windows.Forms.TextBox();
this.txtPort = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.txtChatroom = new System.Windows.Forms.TextBox();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.SuspendLayout();
//
// label1
//
this.label1.Location = new System.Drawing.Point(168, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(64, 24);
this.label1.TabIndex = 0;
this.label1.Text = "User Name:";
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// txtNick
//
this.txtNick.Location = new System.Drawing.Point(240, 8);
this.txtNick.MaxLength = 15;
this.txtNick.Multiline = true;
this.txtNick.Name = "txtNick";
this.txtNick.Size = new System.Drawing.Size(100, 24);
this.txtNick.TabIndex = 1;
this.txtNick.Text = "GrasshopperUser";
//
// btnConnect
//
this.btnConnect.BackColor = System.Drawing.Color.WhiteSmoke;
this.btnConnect.Location = new System.Drawing.Point(680, 8);
this.btnConnect.Name = "btnConnect";
this.btnConnect.Size = new System.Drawing.Size(104, 24);
this.btnConnect.TabIndex = 2;
this.btnConnect.Text = "Connect...";
this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
//
// txtSend
//
this.txtSend.Location = new System.Drawing.Point(176, 264);
this.txtSend.MaxLength = 60;
this.txtSend.Name = "txtSend";
this.txtSend.Size = new System.Drawing.Size(512, 20);
this.txtSend.TabIndex = 4;
this.txtSend.Text = "";
//
// btnSend
//
this.btnSend.BackColor = System.Drawing.Color.WhiteSmoke;
this.btnSend.Location = new System.Drawing.Point(712, 264);
this.btnSend.Name = "btnSend";
this.btnSend.Size = new System.Drawing.Size(72, 40);
this.btnSend.TabIndex = 5;
this.btnSend.Text = "Send";
this.btnSend.Click += new System.EventHandler(this.btnSend_Click);
//
// label2
//
this.label2.Location = new System.Drawing.Point(352, 8);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(56, 24);
this.label2.TabIndex = 6;
this.label2.Text = "Server IP:";
this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// txtIP
//
this.txtIP.Location = new System.Drawing.Point(416, 8);
this.txtIP.MaxLength = 15;
this.txtIP.Multiline = true;
this.txtIP.Name = "txtIP";
this.txtIP.Size = new System.Drawing.Size(100, 24);
this.txtIP.TabIndex = 7;
this.txtIP.Text = "192.168.0.255";
//
// txtPort
//
this.txtPort.Location = new System.Drawing.Point(568, 8);
this.txtPort.MaxLength = 15;
this.txtPort.Multiline = true;
this.txtPort.Name = "txtPort";
this.txtPort.Size = new System.Drawing.Size(100, 24);
this.txtPort.TabIndex = 8;
this.txtPort.Text = "1234";
//
// label3
//
this.label3.Location = new System.Drawing.Point(528, 8);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(32, 24);
this.label3.TabIndex = 9;
this.label3.Text = "Port:";
this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// txtChatroom
//
this.txtChatroom.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.txtChatroom.Location = new System.Drawing.Point(176, 40);
this.txtChatroom.Multiline = true;
this.txtChatroom.Name = "txtChatroom";
this.txtChatroom.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
this.txtChatroom.Size = new System.Drawing.Size(608, 216);
this.txtChatroom.TabIndex = 10;
this.txtChatroom.Text = "";
//
// pictureBox1
//
this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
this.pictureBox1.Location = new System.Drawing.Point(0, 0);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(168, 312);
this.pictureBox1.TabIndex = 11;
this.pictureBox1.TabStop = false;
//
// Form1
//
this.AcceptButton = this.btnSend;
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.BackColor = System.Drawing.Color.WhiteSmoke;
this.ClientSize = new System.Drawing.Size(794, 312);
this.Controls.Add(this.pictureBox1);
this.Controls.Add(this.txtChatroom);
this.Controls.Add(this.label3);
this.Controls.Add(this.txtPort);
this.Controls.Add(this.txtIP);
this.Controls.Add(this.label2);
this.Controls.Add(this.btnSend);
this.Controls.Add(this.txtSend);
this.Controls.Add(this.btnConnect);
this.Controls.Add(this.txtNick);
this.Controls.Add(this.label1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.Opacity = 0.95;
this.Text = "Grasshopper Chat! ";
this.Closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void btnConnect_Click(object sender, System.EventArgs e)
{
StringBuilder strTemp = new StringBuilder();
if(!txtIP.Text.Equals("") && !txtPort.Text.Equals(""))
{
txtChatroom.AppendText("Requesting Connection");
txtChatroom.AppendText(crCR.ToString());
txtChatroom.AppendText(crLF.ToString());
myClient = new TcpClient(txtIP.Text,Convert.ToInt16(txtPort.Text));
myClient.GetStream().BeginRead(myData,0,1024,new System.AsyncCallback(this.doRead),null);
txtChatroom.AppendText("Connected...");
txtChatroom.AppendText(crCR.ToString());
txtChatroom.AppendText(crLF.ToString());
strTemp.Append("nick:");
strMyName = txtNick.Text;
strTemp.Append(strMyName);
send(strTemp.ToString());
}
btnConnect.Enabled = false;
txtNick.Enabled = false;
txtIP.Enabled = false;
txtPort.Enabled = false;
txtSend.Enabled = true;
btnSend.Enabled = true;
}
private void send(string t)
{
StringBuilder strSendString = new StringBuilder();
strSendString.Append(t);
strSendString.Append(crCR);
strSendString.Append(crLF);
System.IO.StreamWriter w = new System.IO.StreamWriter(myClient.GetStream());
w.Write(strSendString.ToString());
w.Flush();
}
private void doRead(IAsyncResult ar)
{
int nCount;
StringBuilder strTemp = new StringBuilder();
try
{
nCount = myClient.GetStream().EndRead(ar);
if(nCount<1)
{
strTemp.Append("Disconnected ");
strTemp.Append(crCR);
strTemp.Append(crLF);
txtChatroom.AppendText(strTemp.ToString());
}
else
{
buildString(myData,0,nCount);
myClient.GetStream().BeginRead(myData,0,1024,new AsyncCallback(this.doRead),null);
}
}
catch(Exception e)
{
if (strTemp.Length>0)
strTemp.Remove(0,strTemp.Length);
strTemp.Append("Disconnected :");
strTemp.Append(e.ToString());
strTemp.Append(crCR);
strTemp.Append(crLF);
txtChatroom.AppendText(strTemp.ToString());
}
}
private void buildString(byte[] bytes, int offset, int count)
{
int nIndex;
for(nIndex=offset; nIndex<=(offset+count-1); nIndex++)
{
if (bytes[nIndex]==10)
{
myText.Append(crLF);
displayText(myText.ToString());
myText.Remove(0,myText.Length);
}
else
{
myText.Append(Convert.ToChar(bytes[nIndex]));
}
}
}
private void displayText(string strMessage)
{
if(strMessage.IndexOf("clear")>=0)
{
txtChatroom.AppendText("");
}
else
{
if(strMessage.IndexOf("client:")>=0)
{
StringBuilder strBuddyName = new StringBuilder();
strBuddyName.Append(strMessage.ToString().Substring(7,strMessage.Length-9));
txtChatroom.AppendText("");
}
else
{
if( (strMessage.IndexOf("closenow")>=0) || (strMessage.IndexOf("nick:")>=0) )
{
txtChatroom.AppendText("");
}
else
{
txtChatroom.AppendText(strMessage);
txtChatroom.AppendText(crCR.ToString());
txtChatroom.AppendText(crLF.ToString());
}
}
}
}
private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
StringBuilder strTemp = new StringBuilder();
strTemp.Append("closenow");
strTemp.Append(strMyName);
send(strTemp.ToString());
}
private void btnSend_Click(object sender, System.EventArgs e)
{
if (txtSend.Text.Length>0)
{
StringBuilder strTemp = new StringBuilder();
strTemp.Append(strMyName);
strTemp.Append(" says: ");
strTemp.Append(txtSend.Text);
send(strTemp.ToString());
txtSend.Clear();
}
}
}
}
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Laurence Moroney is the Director of Product Evangelism for Mainsoft. He joined Mainsoft from Reuters, where he was a Senior Architect in their CTO Office, specializing in Enterprise Architecture and Web Services Interoperability. Laurence has also worked extensively in the financial services and security fields. He is the author of several computer books, including ‘Expert Web Services Security in the .NET Platform’ and ‘ASP.NET 1.1 with VB.NET’ as well as several dozen technology articles.
You can find his blog at:
philotic.com/blog
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