Regular Expression Validator – Date Validation
TextBox Control
<asp:TextBox ID=”REF_PAID_DATETextBox” runat=”server” Text='<%# Bind(“REF_PAID_DATE”) %>’ ToolTip=”Use MM/DD/YYYY format” class=”myTextBox75″ ></asp:TextBox>
Regular Expression Validator
<asp:RegularExpressionValidator ID=”REF_PAID_DATEFormat” runat=”server”
ValidationExpression=”^\d{1,2}/\d{1,2}/\d\d\d\d$”
ControlToValidate=”REF_PAID_DATETextBox”
ValidationGroup=”Form1″ Text=” <font color=’red’> mm/dd/yyyy </font>”
ErrorMessage=”<font color=’red’> mm/dd/yyyy </font>”>
</asp:RegularExpressionValidator>Submit Button
<asp:Button ID=”UpdateButton” runat=”server” CausesValidation=”True” ValidationGroup=”Form1″ CommandName=”Update” Text=”Update” />