IsNumeric Method issue

.NET
1

I created a method in my class which will determine if an input is a numeric value or not.


public static Boolean IsNumeric(string strInput)
{
        try
        {
            int iInput = int.Parse(strInput);
            return true;
        }
        catch
        {
            return false;
        }
        
}

And I used it in my customvalidator control like this


if (txtLateAllowance.Text.Length == 0)
{
            vLateAllowance.Text = "Please specify the late allowance entry of employee.";
            args.IsValid = false;
            return;
        }
        else
        {   
            vLateAllowance.Text = "Invalid entry.";
            args.IsValid = false;
            return;
        }

And even I input a numeric value in my entry, still I get the error message “Invalid entry”. Can anyone from this community have an idea on how am I going to solve this issue. Thanks

2

And there is int.TryParse method that does exactly what you did.

3

Where??

4

Or even the IsNumeric function in the Microsoft.VisualBasic Namespace.

Yes, where are you using it? all I see is

        else
        {   
            vLateAllowance.Text = "Invalid entry.";

Edit: Also, have you considered using a RangeValidator?