<asp:TextBox ID="txtDOB" runat="server" CssClass="form-control" TabIndex="5" Width="100%" onchange="CalculateAge();" BackColor="White" ValidationGroup="validateCurrentDate"></asp:TextBox> <ajax:CalendarExtender id="txtDOBCalendar" TargetControlID="txtDOB" Format="dd-MMM-yyyy" OnClientHidden="onCalendarHidden" OnClientShown="onCalendarShown" runat="server" BehaviorID="calendar1"></ajax:CalendarExtender> <asp:CompareValidator ID="CompareValidatorDateOfBirth" runat="server" ErrorMessage="Greater than current date." ControlToValidate="txtDOB" Operator="LessThanEqual" Type="Date" ForeColor="Red" ValidationGroup="validateCurrentDate"></asp:CompareValidator>
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load CompareValidatorDateOfBirth.ValueToCompare = Date.Now.ToString("MM/dd/yyyy") End Sub
var
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