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Format Exception_Input String was not in correct format
I am using windows forms and i am trying to get some doubles as input to do some calculations
The input is in textBox which is by default String, it needs to be converted to the type i am using,
I am doing this on the
public void textBox2_TextChanged(object sender, EventArgs e)
I have tried the followings:
a = Convert.ToDouble(textBox2.Text);
a = Double.Parse(textBox2.Text);
but both of them have a runtime error, Format Exception was unhandled
Input string was not in a correct format.
Any idea to solve the problem??