|
|
|
13 Febuary 2009
|
Determine Double-byte Character Input by Program
In computer, English can be represented by ASCII which is single byte. However, Chinese (also Japanese, Korea and
many others) characters can only be represented by double byte. The following VB.Net function helps you to check whether
your user is inputing ASCII or not.
Private Function isASCII(ByVal str As String) As Boolean
Dim i, j As Integer
For i = 0 To str.Length - 1
j = Asc(str(i))
If Not Chr(j) = str(i) Then
Return False
End If
Next
Return True
End Function
|
|
|