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<%@ Page Language=VB Debug=true %>
<HTML>
<HEAD>
<TITLE>Using a RegularExpressionValidator Control to Prevent the Entry of a Special Character</TITLE>
</HEAD>
<form runat="server">
<BR><BR>
Enter a value that does not include the ' character:<BR>
<asp:textbox
id="txtValue"
runat=server
/>
<asp:regularexpressionvalidator
id="regZipCode"
controltovalidate="txtValue"
validationexpression="[^']*"
display="Dynamic"
font-name="Arial"
font-size="11"
runat=server
>
You must not use the ' character.
</asp:regularexpressionvalidator>
<BR><BR>
<asp:button
id="butOK"
text="OK"
type="Submit"
runat="server"
/>
</form>
</BODY>
</HTML>
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