C# problem I cant get this cash register to work correctly HELP!?

using System;


using System.Drawing;


using System.Collections;


using System.ComponentModel;


using System.Windows.Forms;


using System.Data;





namespace CashRegister


{


/// %26lt;summary%26gt;


/// Summary description for FrmCashRegister.


/// %26lt;/summary%26gt;


public class FrmCashRegister : System.Windows.Forms.Form


{


// Label and TextBox to display current price


private System.Windows.Forms.Label lblDollarSign;


private System.Windows.Forms.TextBox txtCurrentPrice;





// Buttons to input prices


private System.Windows.Forms.Button btnOne;


private System.Windows.Forms.Button btnTwo;


private System.Windows.Forms.Button btnThree;


private System.Windows.Forms.Button btnFour;


private System.Windows.Forms.Button btnFive;


private System.Windows.Forms.Button btnSix;


private System.Windows.Forms.Button btnSeven;


private System.Windows.Forms.Button btnEight;


private System.Windows.Forms.Button btnNine;


private System.Windows.Forms.Button btnZero;


private System.Windows.Forms.Button btnPoint;





// Buttons to enter a price, calculate the total,


// clear the price in the TextBox and clear all input,


// respectively.


private System.Windows.Forms.Button btnEnter;


private System.Windows.Forms.Button btnTotal;


private System.Windows.Forms.Button btnDelete;


private System.Windows.Forms.Button btnClear;





// Labels to display the subtotal


private System.Windows.Forms.Label lblSubtotal;


private System.Windows.Forms.Label lblSubTotalValue;





// Labels to display the tax


private System.Windows.Forms.Label lblTax;


private System.Windows.Forms.Label lblTaxValue;





// Labels to display the total price


private System.Windows.Forms.Label lblTotal;


private System.Windows.Forms.Label lblTotalValue;





/// %26lt;summary%26gt;


/// Required designer variable.


/// %26lt;/summary%26gt;


private System.ComponentModel.Container components = null;





public FrmCashRegister()


{


//


// Required for Windows Form Designer support


//


InitializeComponent();





//


// TODO: Add any constructor code after InitializeComponent call


//


}





/// %26lt;summary%26gt;


/// Clean up any resources being used.


/// %26lt;/summary%26gt;


protected override void Dispose( bool disposing )


{


if( disposing )


{


if (components != null)


{


components.Dispose();


}


}


base.Dispose( disposing );


}





#region Windows Form Designer generated code


/// %26lt;summary%26gt;


/// Required method for Designer support - do not modify


/// the contents of this method with the code editor.


/// %26lt;/summary%26gt;


private void InitializeComponent()


{


this.lblDollarSign = new System.Windows.Forms.Label();


this.txtCurrentPrice = new System.Windows.Forms.TextBox();


this.btnOne = new System.Windows.Forms.Button();


this.btnTwo = new System.Windows.Forms.Button();


this.btnThree = new System.Windows.Forms.Button();


this.btnFour = new System.Windows.Forms.Button();


this.btnFive = new System.Windows.Forms.Button();


this.btnSix = new System.Windows.Forms.Button();


this.btnSeven = new System.Windows.Forms.Button();


this.btnEight = new System.Windows.Forms.Button();


this.btnNine = new System.Windows.Forms.Button();


this.btnZero = new System.Windows.Forms.Button();


this.btnPoint = new System.Windows.Forms.Button();


this.btnEnter = new System.Windows.Forms.Button();


this.btnTotal = new System.Windows.Forms.Button();


this.btnDelete = new System.Windows.Forms.Button();


this.btnClear = new System.Windows.Forms.Button();


this.lblSubtotal = new System.Windows.Forms.Label();


this.lblSubTotalValue = new System.Windows.Forms.Label();


this.lblTax = new System.Windows.Forms.Label();


this.lblTaxValue = new System.Windows.Forms.Label();


this.lblTotal = new System.Windows.Forms.Label();


this.lblTotalValue = new System.Windows.Forms.Label();


this.SuspendLayout();


//


// lblDollarSign


//


this.lblDollarSign.Location = new System.Drawing.Point(16, 16);


this.lblDollarSign.Name = "lblDollarSign";


this.lblDollarSign.Size = new System.Drawing.Size(8, 21);


this.lblDollarSign.TabIndex = 55;


this.lblDollarSign.Text = "$";


this.lblDollarSign.TextAlign = System.Drawing.ContentAlignment.MiddleLe...


//


// txtCurrentPrice


//


this.txtCurrentPrice.Location = new System.Drawing.Point(24, 16);


this.txtCurrentPrice.Name = "txtCurrentPrice";


this.txtCurrentPrice.ReadOnly = true;


this.txtCurrentPrice.Size = new System.Drawing.Size(168, 21);


this.txtCurrentPrice.TabIndex = 57;


this.txtCurrentPrice.Text = "";


//


// btnOne


//


this.btnOne.Location = new System.Drawing.Point(32, 56);


this.btnOne.Name = "btnOne";


this.btnOne.Size = new System.Drawing.Size(24, 24);


this.btnOne.TabIndex = 58;


this.btnOne.Text = "1";


this.btnOne.Click += new System.EventHandler(this.btnOne_Click);


//


// btnTwo


//


this.btnTwo.Location = new System.Drawing.Point(56, 56);


this.btnTwo.Name = "btnTwo";


this.btnTwo.Size = new System.Drawing.Size(24, 24);


this.btnTwo.TabIndex = 59;


this.btnTwo.Text = "2";


this.btnTwo.Click += new System.EventHandler(this.btnTwo_Click);


//


// btnThree


//


this.btnThree.Location = new System.Drawing.Point(80, 56);


this.btnThree.Name = "btnThree";


this.btnThree.Size = new System.Drawing.Size(24, 24);


this.btnThree.TabIndex = 60;


this.btnThree.Text = "3";


this.btnThree.Click += new System.EventHandler(this.btnThree_Click)...


//


// btnFour


//


this.btnFour.Location = new System.Drawing.Point(32, 80);


this.btnFour.Name = "btnFour";


this.btnFour.Size = new System.Drawing.Size(24, 24);


this.btnFour.TabIndex = 61;


this.btnFour.Text = "4";


this.btnFour.Click += new System.EventHandler(this.btnFour_Click);


//


// btnFive


//


this.btnFive.Location = new System.Drawing.Point(56, 80);


this.btnFive.Name = "btnFive";


this.btnFive.Size = new System.Drawing.Size(24, 24);


this.btnFive.TabIndex = 62;


this.btnFive.Text = "5";


this.btnFive.Click += new System.EventHandler(this.btnFive_Click);


//


// btnSix


//


this.btnSix.Location = new System.Drawing.Point(80, 80);


this.btnSix.Name = "btnSix";


this.btnSix.Size = new System.Drawing.Size(24, 24);


this.btnSix.TabIndex = 63;


this.btnSix.Text = "6";


this.btnSix.Click += new System.EventHandler(this.btnSix_Click);


//


// btnSeven


//


this.btnSeven.Location = new System.Drawing.Point(32, 104);


this.btnSeven.Name = "btnSeven";


this.btnSeven.Size = new System.Drawing.Size(24, 24);


this.btnSeven.TabIndex = 64;


this.btnSeven.Text = "7";


this.btnSeven.Click += new System.EventHandler(this.btnSeven_Click)...


//


// btnEight


//


this.btnEight.Location = new System.Drawing.Point(56, 104);


this.btnEight.Name = "btnEight";


this.btnEight.Size = new System.Drawing.Size(24, 24);


this.btnEight.TabIndex = 65;


this.btnEight.Text = "8";


this.btnEight.Click += new System.EventHandler(this.btnEight_Click)...


//


// btnNine


//


this.btnNine.Location = new System.Drawing.Point(80, 104);


this.btnNine.Name = "btnNine";


this.btnNine.Size = new System.Drawing.Size(24, 24);


this.btnNine.TabIndex = 66;


this.btnNine.Text = "9";


this.btnNine.Click += new System.EventHandler(this.btnNine_Click);


//


// btnZero


//


this.btnZero.Location = new System.Drawing.Point(56, 128);


this.btnZero.Name = "btnZero";


this.btnZero.Size = new System.Drawing.Size(24, 24);


this.btnZero.TabIndex = 67;


this.btnZero.Text = "0";


this.btnZero.Click += new System.EventHandler(this.btnZero_Click);


//


// btnPoint


//


this.btnPoint.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));


this.btnPoint.Location = new System.Drawing.Point(80, 128);


this.btnPoint.Name = "btnPoint";


this.btnPoint.Size = new System.Drawing.Size(24, 24);


this.btnPoint.TabIndex = 68;


this.btnPoint.Text = ".";


this.btnPoint.Click += new System.EventHandler(this.btnPoint_Click)...


//


// btnEnter


//


this.btnEnter.Location = new System.Drawing.Point(120, 56);


this.btnEnter.Name = "btnEnter";


this.btnEnter.Size = new System.Drawing.Size(48, 24);


this.btnEnter.TabIndex = 69;


this.btnEnter.Text = "Enter";


this.btnEnter.Click += new System.EventHandler(this.btnEnter_Click)...


//


// btnTotal


//


this.btnTotal.Location = new System.Drawing.Point(120, 80);


this.btnTotal.Name = "btnTotal";


this.btnTotal.Size = new System.Drawing.Size(48, 24);


this.btnTotal.TabIndex = 70;


this.btnTotal.Text = "Total";


this.btnTotal.Click += new System.EventHandler(this.btnTotal_Click)...


//


// btnDelete


//


this.btnDelete.Location = new System.Drawing.Point(120, 104);


this.btnDelete.Name = "btnDelete";


this.btnDelete.Size = new System.Drawing.Size(48, 24);


this.btnDelete.TabIndex = 71;


this.btnDelete.Text = "Delete";


this.btnDelete.Click += new System.EventHandler(this.btnDelete_Click...


//


// btnClear


//


this.btnClear.Location = new System.Drawing.Point(120, 128);


this.btnClear.Name = "btnClear";


this.btnClear.Size = new System.Drawing.Size(48, 24);


this.btnClear.TabIndex = 72;


this.btnClear.Text = "Clear";


this.btnClear.Click += new System.EventHandler(this.btnClear_Click)...


//


// lblSubtotal


//


this.lblSubtotal.Location = new System.Drawing.Point(16, 176);


this.lblSubtotal.Name = "lblSubtotal";


this.lblSubtotal.Size = new System.Drawing.Size(56, 23);


this.lblSubtotal.TabIndex = 73;


this.lblSubtotal.Text = "Subtotal:";


this.lblSubtotal.TextAlign = System.Drawing.ContentAlignment.MiddleLe...


//


// lblSubTotalValue


//


this.lblSubTotalValue.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D...


this.lblSubTotalValue.Location = new System.Drawing.Point(88, 176);


this.lblSubTotalValue.Name = "lblSubTotalValue";


this.lblSubTotalValue.TabIndex = 74;


this.lblSubTotalValue.Text = "$0.00";


this.lblSubTotalValue.TextAlign = System.Drawing.ContentAlignment.MiddleRi...


//


// lblTax


//


this.lblTax.Location = new System.Drawing.Point(16, 216);


this.lblTax.Name = "lblTax";


this.lblTax.Size = new System.Drawing.Size(56, 23);


this.lblTax.TabIndex = 75;


this.lblTax.Text = "Tax:";


this.lblTax.TextAlign = System.Drawing.ContentAlignment.MiddleLe...


//


// lblTaxValue


//


this.lblTaxValue.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D...


this.lblTaxValue.Location = new System.Drawing.Point(88, 216);


this.lblTaxValue.Name = "lblTaxValue";


this.lblTaxValue.TabIndex = 76;


this.lblTaxValue.Text = "$0.00";


this.lblTaxValue.TextAlign = System.Drawing.ContentAlignment.MiddleRi...


//


// lblTotal


//


this.lblTotal.Location = new System.Drawing.Point(16, 256);


this.lblTotal.Name = "lblTotal";


this.lblTotal.Size = new System.Drawing.Size(56, 23);


this.lblTotal.TabIndex = 77;


this.lblTotal.Text = "Total:";


this.lblTotal.TextAlign = System.Drawing.ContentAlignment.MiddleLe...


//


// lblTotalValue


//


this.lblTotalValue.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D...


this.lblTotalValue.Location = new System.Drawing.Point(88, 256);


this.lblTotalValue.Name = "lblTotalValue";


this.lblTotalValue.TabIndex = 78;


this.lblTotalValue.Text = "$0.00";


this.lblTotalValue.TextAlign = System.Drawing.ContentAlignment.MiddleRi...


//


// FrmCashRegister


//


this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);


this.ClientSize = new System.Drawing.Size(208, 293);


this.Controls.Add(this.lblTotalValue);


this.Controls.Add(this.lblTotal);


this.Controls.Add(this.lblTaxValue);


this.Controls.Add(this.lblTax);


this.Controls.Add(this.lblSubTotalValue)...


this.Controls.Add(this.lblSubtotal);


this.Controls.Add(this.btnClear);


this.Controls.Add(this.btnDelete);


this.Controls.Add(this.btnTotal);


this.Controls.Add(this.btnEnter);


this.Controls.Add(this.btnPoint);


this.Controls.Add(this.btnZero);


this.Controls.Add(this.btnNine);


this.Controls.Add(this.btnEight);


this.Controls.Add(this.btnSeven);


this.Controls.Add(this.btnSix);


this.Controls.Add(this.btnFive);


this.Controls.Add(this.btnFour);


this.Controls.Add(this.btnThree);


this.Controls.Add(this.btnTwo);


this.Controls.Add(this.btnOne);


this.Controls.Add(this.txtCurrentPrice);


this.Controls.Add(this.lblDollarSign);


this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));


this.Name = "FrmCashRegister";


this.Text = "Cash Register";


this.ResumeLayout(false);





}


#endregion





/// %26lt;summary%26gt;


/// The main entry point for the application.


/// %26lt;/summary%26gt;


[STAThread]


static void Main()


{


Application.Run( new FrmCashRegister() );


}





private void btnZero_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "0"; // concatenate "0" to display





}// end method btnZero_Click





private void btnOne_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "1"; // concatenate "1" to display





}// end method btnOne_Click





private void btnTwo_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "2"; // concatenate "2" to display





}// end method btnTwo_Click





private void btnThree_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "3"; // concatenate "3" to display





}// end method btnThree_Click





private void btnFour_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "4"; // concatenate "4" to display





}// end method btnFour_Click





private void btnFive_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "5"; // concatenate "5" to display





}// end method btnFive_Click





private void btnSix_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "6"; // concatenate "6" to display





}// end method btnSix_Click





private void btnSeven_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "7"; // concatenate "7" to display





}// end method btnSeven_Click





private void btnEight_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "8"; // concatenate "8" to display





}// end method btnEight_Click





private void btnNine_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "9"; // concatenate "9" to display





}// end method btnNine_Click





private void btnPoint_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Text += "."; // concatenate "." to display





}// end method btnPoint_Click





private void btnEnter_Click(object sender, System.EventArgs e)


{


Decimal.Parse( lblSubTotalValue.Text.Substring(1) );





}// end method btnEnter_Click





private void btnTotal_Click(object sender, System.EventArgs e)


{


Decimal.Parse( decSubTotalValue.Text.Substring(1) );





switch (decSubTotalValue) / 100 ;





Decimal.Parse( decTax.Text.Substring(1) );


}





private void btnClear_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Clear(); // clear text from subtotal


txtCurrentPrice.Clear(); // clear text from tax


txtCurrentPrice.Clear(); // clear text from total





}// end method btnClear_Click





private void btnDelete_Click(object sender, System.EventArgs e)


{


txtCurrentPrice.Clear(); // clear text from textbox





}// end method btnDelete_Click





} // end class FrmCashRegister


}

C# problem I cant get this cash register to work correctly HELP!?
You need to say what the problem is, what you've done to try to fix it, and any information about other methods you tried. Don't just post your code and ask us to fix it... that's your job. You need to give some indication that you've tried to narrow down the problem to something more specific than "the entire program"