Software Applications Programming Errors and solutions.

Function to check key validation using asp. net ublic Function KeyValid(ByVal keyChar As Char, ByVal strType As KeyType) As Boolean Dim blnRetVal As Boolean Dim strNumStr As String = "0123456789" Dim strDecStr As String = "0123456789." Dim strAlpha As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" Dim strDate As String = "0123456789/" Dim strPhone As String = "0123456789-()," Dim strTime As String = "01234567890:" Dim strEqn As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789./*+-()|" Dim strAlphaNum As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" Try blnRetVal = False If Asc(keyChar) < 32 Then KeyValid = False Exit Function End If Select Case strType Case KeyType.KeyAlpha If strAlpha.IndexOf(keyChar) < 0 Then blnRetVal = Not blnRetVal Case KeyType.KeyAlphaNum If strAlphaNum.IndexOf(keyChar) ...