Many Thank. there is no error in code thats why i cant point out where is the problem in code.
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Form1.cs
-----------------------------------------------------------
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.IO;
using System.Windows.Forms;
namespace testbaby
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btnBack_Click(object sender, EventArgs e)
{
this.txtDisplay.Text = (decimal.Parse(this.txtDisplay.Text) / decimal.Parse(this.txtRate.Text)).ToString("N");
this.just_cleared = true;
}
private void btnBackspace_click(object sender, EventArgs e)
{
if (this.txtDisplay.Text.Length > 1)
{
this.txtDisplay.Text = this.txtDisplay.Text.Substring(0, this.txtDisplay.Text.Length - 1);
}
else
{
this.txtDisplay.Text = "0";
this.just_cleared = true;
}
}
private void btnForward_Click(object sender, EventArgs e)
{
this.txtDisplay.Text = (decimal.Parse(this.txtDisplay.Text) * decimal.Parse(this.txtRate.Text)).ToString("N");
this.just_cleared = true;
}
private void btnPoint_Click(object sender, EventArgs e)
{
this.txtDisplay.AppendText(".");
this.just_cleared = false;
}
private void Button0_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "0";
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("0");
}
}
private void Button1_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "1";
this.just_cleared = false;
}
else if ((this.txtDisplay.Text != "0") && (this.txtDisplay.Text.Length < 9))
{
this.txtDisplay.AppendText("1");
}
}
private void Button2_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "2";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("2");
}
}
private void Button3_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "3";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("3");
}
}
private void Button4_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "4";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("4");
}
}
private void Button5_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "5";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("5");
}
}
private void Button6_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "6";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("6");
}
}
private void Button7_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "7";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("7");
}
}
private void Button8_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "8";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("8");
}
}
private void Button9_Click(object sender, EventArgs e)
{
if (this.just_cleared)
{
this.txtDisplay.Text = "9";
this.just_cleared = false;
}
else if (this.txtDisplay.Text.Length < 9)
{
this.txtDisplay.AppendText("9");
}
}
private void chkLock_CheckedChanged(object sender, EventArgs e)
{
if (this.chkLock.Checked)
{
this.txtRate.BackColor = Color.Silver;
this.txtRate.ReadOnly = true;
}
else
{
this.txtRate.BackColor = Color.White;
this.txtRate.ReadOnly = false;
}
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
string startupPath = Application.StartupPath;
try
{
StreamWriter writer = new StreamWriter(startupPath + @"\ccrate.dat");
writer.WriteLine(this.txtRate.Text);
writer.Close();
}
catch
{
}
}
private void Form1_Load(object sender, EventArgs e)
{
string startupPath = Application.StartupPath;
if (File.Exists(startupPath + @"\ccrate.dat"))
{
StreamReader reader = new StreamReader(startupPath + @"\ccrate.dat");
this.txtRate.Text = reader.ReadLine();
reader.Close();
}
else
{
this.txtRate.Text = "1.0";
}
}
private void button2_Click(object sender, EventArgs e)
{
}
private void txtDisplay_TextChanged(object sender, EventArgs e)
{
this.btnPoint.Enabled = !this.txtDisplay.Text.Contains(".");
}
private void txtRate_Leave(object sender, EventArgs e)
{
try
{
double num = double.Parse(this.txtRate.Text);
if (num > 0.0001)
{
this.txtRate.Text = num.ToString();
this.old_rate = num;
this.txtDisplay.Text = "0";
this.just_cleared = true;
}
else
{
this.txtRate.Text = this.old_rate.ToString();
}
}
catch
{
this.txtRate.Text = this.old_rate.ToString();
}
}
}
}
-----------------------------------------------------------------------
form1.Designer.cs
-----------------------------------------------------------------------
namespace testbaby
{
partial class Form1
{
///
/// Required designer variable.
///
private System.ComponentModel.IContainer components = null;
///
/// Clean up any resources being used.
///
/// true if managed resources should be disposed; otherwise, false.
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
this.txtDisplay = new System.Windows.Forms.TextBox();
this.btnBackspace = new System.Windows.Forms.Button();
this.Button0 = new System.Windows.Forms.Button();
this.Button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.button6 = new System.Windows.Forms.Button();
this.button7 = new System.Windows.Forms.Button();
this.button8 = new System.Windows.Forms.Button();
this.button9 = new System.Windows.Forms.Button();
this.chkLock = new System.Windows.Forms.CheckBox();
this.txtRate = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.btnBack = new System.Windows.Forms.Button();
this.btnForward = new System.Windows.Forms.Button();
this.btnClear = new System.Windows.Forms.Button();
this.btnPoint = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// txtDisplay
//
this.txtDisplay.BackColor = System.Drawing.Color.Black;
this.txtDisplay.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.txtDisplay.ForeColor = System.Drawing.Color.Lime;
this.txtDisplay.Location = new System.Drawing.Point(26, 16);
this.txtDisplay.Name = "txtDisplay";
this.txtDisplay.Size = new System.Drawing.Size(155, 26);
this.txtDisplay.TabIndex = 0;
this.txtDisplay.TextChanged += new System.EventHandler(this.txtDisplay_TextChanged);
//
// btnBackspace
//
this.btnBackspace.Font = new System.Drawing.Font("Microsoft Sans Serif", 10.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.btnBackspace.Image = ((System.Drawing.Image)(resources.GetObject("btnBackspace.Image")));
this.btnBackspace.Location = new System.Drawing.Point(143, 87);
this.btnBackspace.Name = "btnBackspace";
this.btnBackspace.Size = new System.Drawing.Size(38, 64);
this.btnBackspace.TabIndex = 62;
this.btnBackspace.Text = "z";
this.btnBackspace.UseVisualStyleBackColor = true;
this.btnBackspace.Click += new System.EventHandler(this.btnBackspace_click);
//
// Button0
//
this.Button0.BackColor = System.Drawing.SystemColors.ActiveBorder;
this.Button0.Location = new System.Drawing.Point(29, 180);
this.Button0.Name = "Button0";
this.Button0.Size = new System.Drawing.Size(70, 24);
this.Button0.TabIndex = 2;
this.Button0.Text = "0";
this.Button0.UseVisualStyleBackColor = false;
this.Button0.Click += new System.EventHandler(this.Button0_Click);
//
// Button1
//
this.Button1.Location = new System.Drawing.Point(29, 147);
this.Button1.Name = "Button1";
this.Button1.Size = new System.Drawing.Size(32, 24);
this.Button1.TabIndex = 63;
this.Button1.Text = "1";
this.Button1.UseVisualStyleBackColor = true;
this.Button1.Click += new System.EventHandler(this.Button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(67, 147);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(32, 24);
this.button2.TabIndex = 64;
this.button2.Text = "2";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(105, 147);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(32, 24);
this.button3.TabIndex = 65;
this.button3.Text = "3";
this.button3.UseVisualStyleBackColor = true;
this.button3.Click += new System.EventHandler(this.Button3_Click);
//
// button4
//
this.button4.Location = new System.Drawing.Point(29, 117);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(32, 24);
this.button4.TabIndex = 66;
this.button4.Text = "4";
this.button4.UseVisualStyleBackColor = true;
this.button4.Click += new System.EventHandler(this.Button4_Click);
//
// button5
//
this.button5.Location = new System.Drawing.Point(67, 117);
this.button5.Name = "button5";
this.button5.Size = new System.Drawing.Size(32, 24);
this.button5.TabIndex = 67;
this.button5.Text = "5";
this.button5.UseVisualStyleBackColor = true;
this.button5.Click += new System.EventHandler(this.Button5_Click);
//
// button6
//
this.button6.Location = new System.Drawing.Point(105, 117);
this.button6.Name = "button6";
this.button6.Size = new System.Drawing.Size(32, 24);
this.button6.TabIndex = 68;
this.button6.Text = "6";
this.button6.UseVisualStyleBackColor = true;
this.button6.Click += new System.EventHandler(this.Button6_Click);
//
// button7
//
this.button7.Location = new System.Drawing.Point(29, 87);
this.button7.Name = "button7";
this.button7.Size = new System.Drawing.Size(32, 24);
this.button7.TabIndex = 69;
this.button7.Text = "7";
this.button7.UseVisualStyleBackColor = true;
this.button7.Click += new System.EventHandler(this.Button7_Click);
//
// button8
//
this.button8.Location = new System.Drawing.Point(67, 87);
this.button8.Name = "button8";
this.button8.Size = new System.Drawing.Size(32, 24);
this.button8.TabIndex = 70;
this.button8.Text = "8";
this.button8.UseVisualStyleBackColor = true;
this.button8.Click += new System.EventHandler(this.Button8_Click);
//
// button9
//
this.button9.Location = new System.Drawing.Point(105, 87);
this.button9.Name = "button9";
this.button9.Size = new System.Drawing.Size(32, 24);
this.button9.TabIndex = 71;
this.button9.Text = "9";
this.button9.UseVisualStyleBackColor = true;
this.button9.Click += new System.EventHandler(this.Button9_Click);
//
// chkLock
//
this.chkLock.AutoSize = true;
this.chkLock.Location = new System.Drawing.Point(153, 237);
this.chkLock.Name = "chkLock";
this.chkLock.Size = new System.Drawing.Size(62, 17);
this.chkLock.TabIndex = 72;
this.chkLock.Text = "Locked";
this.chkLock.UseVisualStyleBackColor = true;
this.chkLock.CheckedChanged += new System.EventHandler(this.chkLock_CheckedChanged);
//
// txtRate
//
this.txtRate.Location = new System.Drawing.Point(26, 240);
this.txtRate.Name = "txtRate";
this.txtRate.Size = new System.Drawing.Size(121, 20);
this.txtRate.TabIndex = 73;
this.txtRate.Leave += new System.EventHandler(this.txtRate_Leave);
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(26, 224);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(81, 13);
this.label1.TabIndex = 74;
this.label1.Text = "Exchange Rate";
//
// btnBack
//
this.btnBack.Location = new System.Drawing.Point(26, 48);
this.btnBack.Name = "btnBack";
this.btnBack.Size = new System.Drawing.Size(73, 31);
this.btnBack.TabIndex = 75;
this.btnBack.Text = "Convert <--";
this.btnBack.UseVisualStyleBackColor = true;
this.btnBack.Click += new System.EventHandler(this.btnBack_Click);
//
// btnForward
//
this.btnForward.Location = new System.Drawing.Point(105, 48);
this.btnForward.Name = "btnForward";
this.btnForward.Size = new System.Drawing.Size(76, 31);
this.btnForward.TabIndex = 76;
this.btnForward.Text = "Convert -->";
this.btnForward.UseVisualStyleBackColor = true;
this.btnForward.Click += new System.EventHandler(this.btnForward_Click);
//
// btnClear
//
this.btnClear.Location = new System.Drawing.Point(143, 157);
this.btnClear.Name = "btnClear";
this.btnClear.Size = new System.Drawing.Size(38, 48);
this.btnClear.TabIndex = 77;
this.btnClear.Text = "C";
this.btnClear.UseVisualStyleBackColor = true;
//
// btnPoint
//
this.btnPoint.Font = new System.Drawing.Font("Microsoft Sans Serif", 5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.btnPoint.Image = ((System.Drawing.Image)(resources.GetObject("btnPoint.Image")));
this.btnPoint.Location = new System.Drawing.Point(105, 180);
this.btnPoint.Name = "btnPoint";
this.btnPoint.Size = new System.Drawing.Size(32, 24);
this.btnPoint.TabIndex = 78;
this.btnPoint.Text = ".";
this.btnPoint.UseVisualStyleBackColor = true;
this.btnPoint.Click += new System.EventHandler(this.btnPoint_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(218, 273);
this.Controls.Add(this.btnPoint);
this.Controls.Add(this.btnClear);
this.Controls.Add(this.btnForward);
this.Controls.Add(this.btnBack);
this.Controls.Add(this.label1);
this.Controls.Add(this.txtRate);
this.Controls.Add(this.chkLock);
this.Controls.Add(this.button9);
this.Controls.Add(this.button8);
this.Controls.Add(this.button7);
this.Controls.Add(this.button6);
this.Controls.Add(this.button5);
this.Controls.Add(this.button4);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.Button1);
this.Controls.Add(this.Button0);
this.Controls.Add(this.btnBackspace);
this.Controls.Add(this.txtDisplay);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.TextBox txtDisplay;
private System.Windows.Forms.Button btnBackspace;
private System.Windows.Forms.Button Button0;
private System.Windows.Forms.Button Button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private System.Windows.Forms.Button button8;
private System.Windows.Forms.Button button9;
private System.Windows.Forms.CheckBox chkLock;
private System.Windows.Forms.TextBox txtRate;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button btnBack;
private System.Windows.Forms.Button btnForward;
private System.Windows.Forms.Button btnClear;
private System.Windows.Forms.Button btnPoint;
private bool just_cleared = true;
private double old_rate;
}
}
Hiren SoniPosted Jan 24, 2010, 10:34 PM
tell us inputs in which you get error.