Requiredfieldvalidator is not working, if boostrap validator used

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validation

bootstrap

validator

Hi,

I am using the bootstrap validator for form validation and RequiredFieldValidator for grid textbox validation in the same page. RequiredFieldValidator is not working if the bootstrap validator is implemented.
Please help to use both validations on the same page.

thanks in advance.

What I have tried:

grid validation:

<asp:TemplateField HeaderText="RatePerQuantity">
                                                            <ItemTemplate>
                                                                <asp:TextBox ID="txtRate" runat="server" MaxLength="6" />
                                                                <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtRate"
                                                                    ErrorMessage="*" SetFocusOnError="True" ValidationGroup="Group1"></asp:RequiredFieldValidator>
                                                            </ItemTemplate>
                                                        </asp:TemplateField>

button:

<asp:Button ID="btnSave" runat="server" Text="Submit" class="btn btn-primary" ValidationGroup="Group1" OnClick="btnSave_Click" />