firing both onclientclick and Client side validation from validation control on button Client click

Question

I have few ASP Text Box controls on a Page, to which Custom Validators are added. I have Save Button, which validates these Text boxes. I have just added the Validation Group as same as that of the Text boxes.

In order to incorporate addtional requirement, I have added onClientClick function for Save button. But amused to find that Validation due to Validation Group(validator controls) is not firing instead the onClientClick function is called and server side Click event is called.

Javascript Code

function ValidateInputs(source, args) {
            var regex = /^(-{0,1}\d{1,100})$/;
            if (args.Value.length < 1) {
                $("span[id$='spn_error']").html('Please Enter ' + $(source).attr("errormessage"));
                $("span[id$='spn_error']").show();
                args.IsValid = false;
                return;
            }
            else if (!regex.test(args.Value)) {
                $("span[id$='spn_error']").html($(source).attr("errormessage") + ' allows only numbers');
                $("span[id$='spn_error']").show();
                args.IsValid = false;
                return;
            }
            else {
                if ($("span[id$='spn_error']").html().indexOf($(source).attr("errormessage")) >= 0)
                    $("span[id$='spn_error']").hide();
                args.IsValid = true;
                return;
            }
        }

function isValidTracker() {
//Dummy Code Say Confirm button
return(confirm('Are you sure');)

}

HTML Code

<span class="errormesg" runat="server" id="spn_error" style="display: none;
                        font-size: 9px;"></span>
<asp:TextBox ID="txtLastMonthCount" runat="server" CssClass="inputbox" Width="75px" autocomplete="off" onkeypress="return isNumberKey(event);" ValidationGroup="g1"></asp:TextBox>

<asp:CustomValidator ID="CVLastMonthCount" runat="server" ErrorMessage="Last Months Closing Count" Text="<img src='../images/alert.gif' alt='Please Enter Last Months Closing Count' title='Please Enter Last Months Closing Count' />" 
    ValidationGroup="g1" ClientValidationFunction="ValidateInputs" OnServerValidate="ValidateInputs" ControlToValidate="txtLastMonthCount" ValidateEmptyText="true"></asp:CustomValidator>

<asp:Button ID="btnSave" runat="server" Text="Save" CssClass="button" ValidationGroup="g1" OnClientClick="return isValidTracker();" OnClick="btnSave_Click" />

Please help me in finding the solution to fire onclientclick and validation control of Save button click.

Answer 1

Change OnClientClick from return isValidTracker() to if (!isValidTracker()) return false;