hi
this is my code and I am trying to write a simple code to generate total and grand total.
I have id,name,quantity,price,total,grand total
'total' works perfectly,but I am having problem getting GT to work.
here is the code....
the error I am getting is "Input string was not in correct format"
private void textBox3_TextChanged(object sender, EventArgs e)
{
if ((textBox3.Text != "") && (textBox4.Text != ""))
{
textBox5.Text = (Convert.ToDouble(textBox3.Text) * Convert.ToDouble(textBox4.Text)).ToString();
textBox6.Text = (Convert.ToDouble(textBox5.Text) + Convert.ToDouble(textBox6.Text)).ToString();
}
}
private void textBox4_TextChanged(object sender, EventArgs e)
{
if ((textBox3.Text !="") && (textBox4.Text!=""))
{
textBox5.Text = (Convert.ToDouble(textBox3.Text) * Convert.ToDouble(textBox4.Text)).ToString();
textBox6.Text = (Convert.ToDouble(textBox5.Text) + Convert.ToDouble(textBox6.Text)).ToString();
}
}