CODEWITHSUNDEEP
c#
Divyaanand Sinha
Divyaanand Sinha

Reputation: 396

Input String not in correct Format error C#

I'm trying to Convert the string "5.7" (from a textbox) in to a float like this:

float m = float.Parse(TextBox9.Text);

But I'm getting the following error:

System.FormatException: Input string was not in a correct format.

what is wrong please?

Upvotes: 0

Views: 1860

Answers (2)

user3378165
user3378165

Reputation: 6896

float.Parse(Textbox9.Text, CultureInfo.InvariantCulture.NumberFormat);

Upvotes: 1

scher
scher

Reputation: 1923

You et the exception, because the text in the TextBox9 does not fit the "country-rules" for a correct decimal number. Usually this happens, if the dot represents a thousand seperator and not the decimal point. Maybe you can use:

float number = float.Parse(TextBox9.Text, CultureInfo.InvariantCulture);

or

float number = float.Parse(TextBox9.Text, Thread.CurrentThread.CurrentUICulture);

To avoid the exception you can use:

float number;
if (!float.TryParse(TextBox9.Text,  out number))
    MessageBox.Show("Input must be a decimal number.");

Upvotes: 0

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