Regular Expression required

[Sathyaish]

RegEx heros,

I want to validate a certain field such that it shouldn't contain the
percentage character (%) or the asterisk character symbol (*). The
specification is that:

(1) The field must not contain the percentage symbol; AND
(2) The field must not contain the asterisk symbol.

It should contain neither of them. Can you please help me with the
RegEx for this?

 

[Doug Bell]

Sathyaish,

Try something like:

Private Sub MyTextBox_KeyPress(ByVal sender As Object, _

ByVal e As System.Windows.Forms.KeyPressEventArgs) _

Handles MyTextBox.KeyPress

e.Handled = ChkEntry(e.KeyChar)

End Sub

Private Function ChkEntry(ByVal c As Char) As Boolean

Return c = "%" Or c = "%"

End Function

Doug

 

[Ken Tucker [MVP]]

Hi,

You can use the regex ismatch method to tell if the character is
the string.

Dim rMatch As New System.Text.RegularExpressions.Regex("[%*]")
Trace.WriteLine(rMatch.IsMatch("There is a 10% drop in sales"))
Trace.WriteLine(rMatch.IsMatch("10 * 12 equals 120"))
Trace.WriteLine(rMatch.IsMatch("There is a 10 percent drop in sales"))


Ken