Javascript 如果按下取消，确认不停止来自 post 的请求？

Question

我正在使用带有 confirm() 消息框的 Javascript 函数，并且还有 RequiredFieldValidator 如果我在我的确认消息框上按取消但 ValidatorGroup 为真那么它不会停止来自的请求post 回来了。

我想以这样的方式实现如果 validatorGroup 是 treu 但函数 return false 那么请求不应该 post 返回

这是我的代码：-

<asp:Button ID="btnStaffSendRequest" runat="server" Text="Send" OnClientClick="UploadRefrrel()"
                        UseSubmitBehavior="false" ValidationGroup="SaveRequestGroup" OnClick="btnStaffSendRequest_OnClick"
                        TabIndex="1000" />

这是我的 Javascript 函数：-

<script language="javascript" type="text/javascript">

                            function UploadRefrrel() {
                                var hiddenFile = this.document.getElementById("<%= hfInputForm.ClientID %>");
                                var upload = $find("<%= radUploadFiles.ClientID %>");
                                var inputs = upload.getUploadedFiles();
                                var retVal;
                                if (hiddenFile != null && hiddenFile.value != "" && inputs.length == 0) {
                                    retVal = confirm("FYI - Only 'Referral Form' is attached. Do you want to proceed without any other attachment?");
                                }
                                return retVal;
                            }
                        </script>

Answer 1

<asp:CustomValidator ID="validatePostBack" runat="server" Display="None" ClientValidationFunction="Validate_PostBack"
                        ValidationGroup="SaveRequestGroup" ErrorMessage="<br /> Please add other attachment."></asp:CustomValidator>                  
                    <telerik:RadScriptBlock ID="uploadReferel" runat="server">
                    <script language="javascript" type="text/javascript">
                        function Validate_PostBack(sender, e) {
                            var hiddenFile = this.document.getElementById("<%= hfInputForm.ClientID %>");
                            var upload = $find("<%= radUploadFiles.ClientID %>");
                            var inputs = upload.getUploadedFiles();

                            if (hiddenFile != null && hiddenFile.value != "" && inputs.length == 0) {
                                var retVal = confirm("FYI - Only 'Referral Form' is attached. Do you want to proceed without any other attachment?");
                                if (retVal == true) {
                                    e.IsValid = true;
                                }
                                else {
                                    e.IsValid = false;
                                }
                            }
                        }
                    </script>
                    </telerik:RadScriptBlock>

找到我的解决方案并且工作正常

Javascript 如果按下取消，确认不停止来自 post 的请求？

Javascript Confirm not Stopping request from post back if pressed cancel?

javascript

asp.net

validation

confirm

requiredfieldvalidator