thank u dudes
EDIT: wtf guys, I installed all the stuff, I even made the Hello World program which is working fine. Now I'm trying to compile a calculator with a source code I found on the internet and I get errors like:
namespace 'Windows' doesn't exists on namespace 'System'
namespace 'Drawing' doesn't exists on namespace 'System'
Can't find namespace 'Form'
Can't find namespace 'Button'
Can't find namespace 'Panel'
etc etc
The source code is:
[quote]using System;
using System.Windows.Forms;
using System.Drawing;
public class win:Form {
Button[] b = new Button[10];
Button bDot,bPlus,bSub,bMul,bDiv,bEqu,bClr;
Panel panCalc;
TextBox txtCalc;
Double dblAcc;
Double dblSec;
bool blnClear,blnFrstOpen;
String strOper;
public win() {
try {
this.Text="Calculator";
panCalc=new Panel();
txtCalc = new TextBox();
txtCalc.Location = new Point(10,10);
txtCalc.Size=new Size(150,10);
txtCalc.ReadOnly=true;
txtCalc.RightToLeft=RightToLeft.Yes;
panCalc.Size=new Size(200,200);
panCalc.BackColor=Color.Aqua;
panCalc.Controls.Add(txtCalc);
addButtons(panCalc);
this.Size=new Size(200,225);
this.Controls.Add(panCalc);
dblAcc=0;
dblSec=0;
blnFrstOpen=true;
blnClear=false;
strOper=new String('=',1);
}
catch (Exception e) {
Console.WriteLine("error ...... " + e.StackTrace);
}
}
private void addButtons(Panel p) {
for (int i=0;i<=9;i++) {
b[i]=new Button();
b[i].Text=Convert.ToString(i);
b[i].Size=new Size(25,25);
b[i].BackColor=Color.White;
b[i].Click+=new EventHandler(btn_clk);
p.Controls.Add(b[i]);
}
b[0].Location=new Point(10,160);
b[1].Location=new Point(10,120);
b[4].Location=new Point(10,80);
b[7].Location=new Point(10,40);
b[2].Location=new Point(50,120);
b[5].Location=new Point(50,80);
b[8].Location=new Point(50,40);
b[3].Location=new Point(90,120);
b[6].Location=new Point(90,80);
b[9].Location=new Point(90,40);
bDot=new Button();
bDot.Size=new Size(25,25);
bDot.Location=new Point(50,160);
bDot.BackColor=Color.White;
bDot.Text=".";
bDot.Click+=new EventHandler(btn_clk);
bPlus=new Button();
bPlus.Size=new Size(25,25);
bPlus.Location=new Point(130,160);
bPlus.BackColor=Color.White;
bPlus.Text="+";
bPlus.Click+=new EventHandler(btn_Oper);
bSub=new Button();
bSub.Size=new Size(25,25);
bSub.Location=new Point(130,120);
bSub.BackColor=Color.White;
bSub.Text="-";
bSub.Click+=new EventHandler(btn_Oper);
bMul=new Button();
bMul.Size=new Size(25,25);
bMul.Location=new Point(130,80);
bMul.BackColor=Color.White;
bMul.Text="*";
bMul.Click+=new EventHandler(btn_Oper);
bDiv=new Button();
bDiv.Size=new Size(25,25);
bDiv.Location=new Point(130,40);
bDiv.BackColor=Color.White;
bDiv.Text="/";
bDiv.Click+=new EventHandler(btn_Oper);
bEqu=new Button();
bEqu.Size=new Size(25,25);
bEqu.Location=new Point(90,160);
bEqu.BackColor=Color.White;
bEqu.Text="=";
bEqu.Click+=new EventHandler(btn_equ);
bClr=new Button();
bClr.Size=new Size(20,45);
bClr.Location=new Point(170,40);
bClr.BackColor=Color.Orange;
bClr.Text="AC";
bClr.Click+=new EventHandler(btn_clr);
p.Controls.Add(bDot);
p.Controls.Add(bPlus);
p.Controls.Add(bSub);
p.Controls.Add(bMul);
p.Controls.Add(bDiv);
p.Controls.Add(bEqu);
p.Controls.Add(bClr);
}
private void btn_clk(object obj,EventArgs ea) {
if(blnClear)
txtCalc.Text="";
Button b3=(Button)obj;
txtCalc.Text+=b3.Text;
if (txtCalc.Text==".")
txtCalc.Text="0.";
dblSec=Convert.ToDouble(txtCalc.Text);
blnClear=false;
}
private static void Main() {
Application.Run(new win());
}
private void btn_Oper(object obj,EventArgs ea) {
Button tmp=(Button)obj;
strOper=tmp.Text;
if (blnFrstOpen)
dblAcc=dblSec;
else
calc();
blnFrstOpen=false;
blnClear=true;
}
private void btn_clr(object obj,EventArgs ea) {
clear();
}
private void btn_equ(object obj,EventArgs ea) {
calc();
}
private void calc() {
switch(strOper) {
case "+":
dblAcc+=dblSec;
break;
case "-":
dblAcc-=dblSec;
break;
case "*":
dblAcc*=dblSec;
break;
case "/":
dblAcc/=dblSec;
break;
}
strOper="=";
blnFrstOpen=true;
txtCalc.Text=Convert.ToString(dblAcc);
dblSec=dblAcc;
}
private void clear() {
dblAcc=0;
dblSec=0;
blnFrstOpen=true;
txtCalc.Text="";
txtCalc.Focus();
}
}[/quote]
