Format Exception_Input String was not in correct format - Programmers Heaven

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Categories

Welcome to the new platform of Programmer's Heaven! We apologize for the inconvenience caused, if you visited us from a broken link of the previous version. The main reason to move to a new platform is to provide more effective and collaborative experience to you all. Please feel free to experience the new platform and use its exciting features. Contact us for any issue that you need to get clarified. We are more than happy to help you.

Format Exception_Input String was not in correct format

mikernablemikernable Posts: 2Member
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)
{}
method.

I have tried the followings:
double a;

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??



Comments

  • masterakosmasterakos Posts: 7Member
    Hello.

    There is nothing wrong about : double a=double.parse(txtbox.text); thats for sure ...

    You get the error in run time i guess cause there is no numbers in text.

    Anyway you can try this...

    double a;
    bool parsed;

    parsed = double.tryParse(txtbox.text,a);

    If(parsed) { messagebox.show("a="+a.toString()); }
    else { messagebox.Show("Could not be parsed"); }
Sign In or Register to comment.