validate date 1

[lfc77]

I've seen a lot of complicated ways of finding out whether a date is valid or not. I have a textbox which has no user input validation and I am trying to convert the valid entered in it into a date, in order to test whether or not the date is valid.

It seems to work so far, but I wondered if it is advisable to do it this way? My code is below:

try
{
DateTime DateFrom = Convert.ToDateTime(txtDateFrom.Text);
}
catch
{
lblLogResult.Text += "Invalid Date From";
}


Thanks,

Mike

 

[Blaxo]

I think it is the right way to do it.

You could also write a general function (which you would put in a utility class, i.e. Utils) for it like this:

public static bool IsDateTime(string value)
{
    try {
        Convert.ToDateTime(value);
        return true;
    }
    catch {
        return false;
    }
}

and then your code would look like this:

if (Utils.IsDateTime(txtDateFrom.Text))
{
    DateTime DateFrom = Convert.ToDateTime(txtDateFrom.Text);
}
else
{
    lblLogResult.Text += "Invalid Date From";
}

regards,
Blaxo