How can I convert String to Int?

turki2009 picture turki2009 · Jun 19, 2009 · Viewed 1.6M times · Source

I have a TextBoxD1.Text and I want to convert it to an int to store it in a database.

How can I do this?

Answer

Andrew Hare picture Andrew Hare · Jun 19, 2009

Try this:

int x = Int32.Parse(TextBoxD1.Text);

or better yet:

int x = 0;

Int32.TryParse(TextBoxD1.Text, out x);

Also, since Int32.TryParse returns a bool you can use its return value to make decisions about the results of the parsing attempt:

int x = 0;

if (Int32.TryParse(TextBoxD1.Text, out x))
{
    // you know that the parsing attempt
    // was successful
}

If you are curious, the difference between Parse and TryParse is best summed up like this:

The TryParse method is like the Parse method, except the TryParse method does not throw an exception if the conversion fails. It eliminates the need to use exception handling to test for a FormatException in the event that s is invalid and cannot be successfully parsed. - MSDN