Input string was not in a correct format, “double.parse(textbox.text);”

Question

Hi am quite new to visual studios.

This is my code so far to make an example of an atm, i have a text box and i put an amount in and then i have this button where i clic

Answer 1

String in textboxamount.Text can not be parsed as double. To avoid exception you can use double.TryParse instead.

double amount;

if(double.TryParse(textboxamount.Text, out amount))
{
    totalamount += amount;
}

Also, label2 seems to be Label and you must use

label2.Text = balance1 + totalamount;

instead.