calculator

Question

Hi  , this is my first code I wrote for the
calculator

double Operand=0;

 

String   currentOp="";

double operand2=0;

bool iscurrentOperand;

private void btnNumeric_Click(object
sender,EventArgs e)

{

Button button=(Button)sender;

txtSow.Text+=button.Text;

iscurrentOp=true;

}

private void
btnOperations_Click(object sender,EventArgs e)

{

Button button=(Button)sender;

if (Operand!=0){

operand2=double.Parse(txtSow.Text);

iscurrentOp=true;

switch(currentOp){

case "+":

 txtSow.Text=(Operand + operand2).ToString();

break;

case "-":

 txtSow.Text=(Operand- operand2).ToString();

break;

case "*":

 txtSow.Text=(Operand * operand2).ToString();

break;

}

}

else{

currentOp=button.Text

Operand=Convert.ToDouble(txtSow.Text);

iscurrentOp=true;

}

}

private void btnEqual_Click(object
sender,EventArgs e)

{

switch(currentOp)

{

 case "+"

txtSow.Text=(Operand +double.Parse(txSow.Text)).ToString();

break;

case "-"

txtSow.Text=(Operand -
double.Parse(txSow.Text)).ToString();

break;

case "*"

txtSow.Text=(Operand *
double.Parse(txSow.Text)).ToString();

break;

case "/"

txtSow.Text=(Operand /
double.Parse(txSow.Text)).ToString();

break;

 

}

 

 

}

 

    
}

 

    
}

 

   
}