getting error when i try this following code

Question

1.00/5 (1 vote)

See more:

C#

double days = Convert.ToDouble(textbox1.Text);
           double sundays = Convert.ToDouble(textbox2.Text);
           double a = Convert.ToDouble(textbox3.text);
           textbox4.text = Convert.ToDouble((a / days) * sundays).ToString();

i try this code it is working but when i press clear button error occurs

the input string was not in correct format.in the first line.

clear button code as follows

C#

textbox1.text = "";
           textbox2.text = "";
           textbox3.text = "";
           textbox4.text = "";

please send the code. help me.

Posted 9-Jul-12 23:33pm

Member 8054539

Updated 9-Jul-12 23:34pm

Rahul Rajat Singh

v2

Add a Solution

Comments

S.Faizan.Ali 10-Jul-12 5:41am

where you have put the above code? I mean behind which event?

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rahul Rajat Singh · Accepted Answer · 2012-07-09T23:39:00

Is your conversion code running after clearing the textboxes too.

I think after clearing the textbox the conversion is happening and is giving exception.

I suggest use of Double.TryParse just to make it little robust. and before trying to convert check whether the textboxes are empty or filled with some value.

i.e.

C#

if(textbox1.Text != string.Empty)
{
  double days = Double.TryParse(textbox1.Text);
}