CompareValidator problem in live project

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ASP.NET

SQL

hi friends
i have use CompareValidator in two date and this validation are work local are perfect but when i check in live project compare validator are not woking plz help me whats a problem
Thanks

my code is

<div class="box_cols_main_stu">
                    <label class="box_cols_lab_wi">
                         Joining Date :</label>
                    <span class="textbox_bg_mn" style="float: left">
                        <asp:TextBox ID="txtDateOfJoining" runat="server" OnTextChanged="txtjoin_TextChanged"
                            AutoPostBack="true">
                    </span><span style="visibility: visible; margin-removed -30px; float: left; margin-removed 408px;">
                        class="red_star">*</span>
                        <span style="text-align: left;">
                            <asp:Label ID="lbl_vali" runat="server" Style="color: #FF0000; margin-left: 140px;">
                            <cc1:CalendarExtender ID="CalendarExtenderjoiningdate" Format="dd/MM/yyyy" PopupPosition="BottomRight"
                                 runat="server" TargetControlID="txtDateOfJoining">
                            
                            <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ForeColor="Red"
                                ControlToValidate="txtDateofJoining" ErrorMessage="Date format in DD/MM/YYYY"
                                ValidationExpression="^(((((0[1-9])|(1\d)|(2[0-8]))\/((0[1-9])|(1[0-2])))|((31\/((0[13578])|(1[02])))|((29|30)\/((0[1,3-9])|(1[0-2])))))\/((20[0-9][0-9])|(19[0-9][0-9])))|((29\/02\/(19|20)(([02468][048])|([13579][26]))))$">
                            
                            <cc1:MaskedEditExtender ID="MaskedEditExtenderjoiningdate"  runat="server" TargetControlID="txtDateOfJoining"
                                Mask="99/99/9999" MessageValidatorTip="true" OnFocusCssClass="MaskedEditFocus"
                                 önInvalidCssClass="MaskedEditError" MaskType="Date" DisplayMoney="Left" AcceptNegative="Left"
                                ErrorTooltipEnabled="True" />
                            <asp:RequiredFieldValidator ID="RequiredFieldValidator1joiningdate" runat="server"
                                ErrorMessage="Please Enter Joining Date...." ControlToValidate="txtDateOfJoining"
                                Display="Dynamic" InitialValue="" CssClass="error_messe">
                            
                            <asp:CompareValidator runat="server" ID="cmp1" ControlToValidate="txtDateOfJoining"
                                ControlToCompare="txtDateOfBirth" Operator="GreaterThan" Display="Dynamic" Type="Date"
                                ErrorMessage="Join date must be after Birth date" CssClass="error_messe">
                            
                        </span>
                </div>
            
        
        <div class="box_cols_main_stu">
            <label class="box_cols_lab_wi">
                 Type of Service :</label>
            <span class="textbox_bg_mn" style="float: left">
                <asp:DropDownList runat="server" ID="ddl_tservice">
                    <asp:ListItem Value="0">Select Type Service
                    <asp:ListItem Value="1">Permanent
                    <asp:ListItem Value="2">Temporary
                    <asp:ListItem Value="3">Part Time
                    <asp:ListItem Value="4">Fix Salary
                    <asp:ListItem Value="5">Other
                
            </span><span style="visibility: visible; margin-removed -30px; float: left; margin-removed 408px;">
                class="red_star">*</span><span style="text-align: left; width: 200px;">
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ErrorMessage="Please Select Service Type..."
                        ControlToValidate="ddl_tservice" Display="Dynamic" CssClass="error_messe" InitialValue="0">
                    
                </span>
        </div>
        <div class="fclear">
             <hr style="width: 880px" />
        </div>
        <div class="box_cols_main_stu">
            <label class="box_cols_lab_wi">
                 Retired Date :</label>
            <span class="textbox_bg_mn" style="float: left">
                <asp:TextBox ID="txtRetairedDate" runat="server">
            </span><span style="visibility: visible; margin-removed -30px; float: left; margin-removed 408px;">
                class="red_star">*</span><span style="text-align: left;">
                    <cc1:CalendarExtender ID="CalendarExtenderretireddate" Format="dd/MM/yyyy" PopupPosition="BottomRight"
                         runat="server" TargetControlID="txtRetairedDate">
                    
                    <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ForeColor="Red"
                        ControlToValidate="txtRetairedDate" ErrorMessage="Date format in DD/MM/YYYY"
                        ValidationExpression="^(((((0[1-9])|(1\d)|(2[0-8]))\/((0[1-9])|(1[0-2])))|((31\/((0[13578])|(1[02])))|((29|30)\/((0[1,3-9])|(1[0-2])))))\/((20[0-9][0-9])|(19[0-9][0-9])))|((29\/02\/(19|20)(([02468][048])|([13579][26]))))$">
                    <cc1:MaskedEditExtender ID="MaskedEditretireddate"  runat="server" TargetControlID="txtRetairedDate"
                        Mask="99/99/9999" MessageValidatorTip="true" OnFocusCssClass="MaskedEditFocus"
                         önInvalidCssClass="MaskedEditError" MaskType="Date" DisplayMoney="Left" AcceptNegative="Left"
                        ErrorTooltipEnabled="True" />
                    <asp:RequiredFieldValidator ID="RequiredFieldValidatorretireddate" runat="server"
                        ErrorMessage="Please Enter Retired Date...." ControlToValidate="txtRetairedDate"
                        Display="Dynamic" InitialValue="" CssClass="error_messe">
                    
                    <%--<asp:CompareValidator runat="server" ID="CompareValidator1" ControlToValidate="txtRetairedDate"
                        ControlToCompare="txtDateOfJoining" Operator="GreaterThan" Display="Dynamic"
                        Type="Date" ErrorMessage="Retaired date must be after Joining  date" CssClass="error_messe">
                    --%>
                </span>
        </div>