必需的字段验证器不工作ASP.NET

Question

我正在尝试在我的表单上实现一个必需的字段验证器，这样当我单击“发送”按钮时，它只有在所有必填字段都有值时才有效。现在，即使我设置了RequiredFieldValidator并单击发送，该功能仍然会触发并且不会停止。这是我现在的代码：

Default.aspx的

   <form action="./Default.aspx" method="post" runat="server">
        <div id="tabs" style="border:none" class="">
            <br />
            <br />
            <button class="backBtn" type="button" name="goBackBtn" onclick="backBtnClicked()"><img src="https://png.icons8.com/back-arrow/win8/1600"></button>
            <h1 class="title">Create NetEvent</h1>

            <br />

            <fieldset>
                <legend>Sender Info</legend>
                <div class="row">
                  <label class="senderInfoUniversal senderInfoLabel">Username:</label>
                  <input class="senderInfoUniversal senderInfoInput" type="text" runat="server" id="eventFormName" readonly="readonly"/>
                </div>
                <div class="row">
                  <label class="senderInfoUniversal senderInfoLabel">Email:</label>
                  <input class="senderInfoUniversal senderInfoInput" type="text" runat="server" id="eventFormEmail" readonly="readonly"/>                  
                </div>  
                <div class="row">
                    <label class="senderInfoUniversal senderInfoInputExtra">*Sender email used when sending out NetEvent</label>
                </div>
            </fieldset>

            <br />

            <fieldset>
                <legend>Type of Event</legend>
                <div class="row">
                    <div data-toggle="buttons" class="btn-group col-md-12">
                        <label runat="server" id="serviceDisruptionLabel" class="btn btn-default" for="serviceDisruptionBtn" onclick="displayServiceDisruptionForm()">Service Disruption
                            <input class="labelInput" id="serviceDisruptionBtn" type="radio" required="required"/>
                        </label>
                        <label runat="server" id="plannedOutageLabel" class="btn btn-default" for="plannedOutageBtn" onclick="displayPlannedOutageForm()">Planned Outage
                            <input class="labelInput" id="plannedOutageBtn" type="radio"/>
                        </label>
                    </div>
                </div>
            </fieldset>

            <br /> 

            <fieldset>
                <legend>NetEvent Information</legend>

                <div id="serviceDisruptionForm" hidden="hidden">
                    <div class="col-md-6">

                        <div class="form-group">
                            <label class="userInfo"> Subject Line
                                <span class="required">*</span>
                            </label>
                            <asp:TextBox type="text" runat="server" id="eventFormSubjectLineSD" class="userInfo form-control customFormElement" 
                                title="Invalid Subject Name"></asp:TextBox>
                            <asp:RequiredFieldValidator 
                                runat="server" 
                                ControlToValidate="eventFormSubjectLineSD" 
                                ErrorMessage="THIS DID NOT WORK">
                            </asp:RequiredFieldValidator>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Summary
                                <span class="required">*</span>
                            </label>
                            <textarea type="text" runat="server" id="eventFormSummarySD" class="userInfo form-control" 
                                title="Invalid Subject Name"/>   
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Resources Affected
                                <span class="required">*</span>
                            </label>
                            <select type="text" runat="server" id="eventFormResourcesAffectedSD" class="userInfo form-control" 
                                title="Invalid Subject Name" clientIdMode="static">
                                <option style="display:none;"></option>
                            </select>
                            <textarea runat="server" id="eventFormResourcesAffectedOtherSD" clientIdMode="static"></textarea>
                            <textarea runat="server" id="resourcesOtherRowSD" hidden="hidden" clientIdMode="static"></textarea>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> People Affected
                                <span class="required">*</span>
                            </label>
                            <textarea type="text" runat="server" id="eventFormPeopleAffectedSD" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Work Around
                                <span class="required">*</span>
                            </label>
                            <textarea type="text" runat="server" id="eventFormWorkAroundSD" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Start Time
                                <span class="required">*</span>
                            </label>
                            <input type="text" runat="server" id="eventFormStartTimeSD" class="userInfo form-control" 
                                title="Invalid Subject Name" clientIdMode="static"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Estimated Time of Resolution
                                <span class="required">*</span>
                            </label>
                            <div class="col">
                                <label id="unknownTextSD" for="eventFormTimeCheckBoxSD">Unknown</label>
                                <input type="checkbox" runat="server" id="eventFormTimeCheckBoxSD" clientIdMode="static"/>  
                            </div>                                                  
                            <input type="text" runat="server" id="eventFormEstimatedTimeOfResolutionSD" class="userInfo form-control" 
                                title="Invalid Subject Name" clientIdMode="static"/>                       
                        </div>

                        <div class="form-group">
                            <label id="draftLabelSD" class="userInfo">Save as Draft</label>
                            <input type="checkbox" runat="server" id="eventFormDraftCheckBoxSD" clientIdMode="static"/>
                            <textarea runat="server" id="eventFormDraftEmailInputSD" clientIdMode="static" hidden="hidden" 
                                placeholder="Type in the emails you would like the draft to be set to, seperated by a comma"/>        
                        </div>

                    </div>
                </div>  

                <div id="plannedOutageForm" hidden="hidden">
                    <div class="col-lg-6">

                        <div class="form-group">
                            <label class="userInfo"> Subject Line
                                <span class="required">*</span>
                            </label>
                            <input type="text" runat="server" id="eventFormSubjectLinePO" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Summary
                                <span class="required">*</span>
                            </label>
                            <textarea type="text" runat="server" id="eventFormSummaryPO" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Resources Being Changed
                                <span class="required">*</span>
                            </label>
                            <select type="text" runat="server" id="eventFormResourcesBeingChangedPO" class="userInfo form-control" 
                                title="Invalid Subject Name" clientIdMode="static">
                                <option style="display:none;"></option>
                            </select>
                            <textarea runat="server" id="eventFormResourcesBeingChangedOtherPO" clientIdMode="static"></textarea>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Change Benefits
                                <span class="required">*</span>
                            </label>
                            <textarea type="text" runat="server" id="eventFormChangeBenefitsPO" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Impact on End Users
                                <span class="required">*</span>
                            </label>
                            <textarea type="text" runat="server" id="eventFormImpactOnEndUsersPO" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Proposed Start Date/Time
                                <span class="required">*</span>
                            </label>
                            <input type="text" runat="server" id="eventFormProposedStartDatePO" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label class="userInfo"> Proposed End Date/Time
                                <span class="required">*</span>
                            </label>
                            <input type="text" runat="server" id="eventFormProposedEndDatePO" class="userInfo form-control" 
                                title="Invalid Subject Name"/>
                        </div>

                        <div class="form-group">
                            <label id="draftLabelPO" class="userInfo">Save as Draft</label>
                            <input type="checkbox" runat="server" id="eventFormDraftCheckBoxPO" clientIdMode="static"/>
                            <textarea runat="server" id="eventFormDraftEmailInputPO" clientIdMode="static" hidden="hidden" 
                                placeholder="Type in the emails you would like the draft to be set to, seperated by a comma"/>        
                        </div>
                    </div>
                </div>
            </fieldset>    
            
            <br />                

            <asp:Button ID="eventFormSubmitBtn" runat="server" Text="Send" OnClientClick="setValidators()" OnClick="eventFormSubmitBtn_Clicked"/>

            <asp:HiddenField ID="typeHolder" runat="server" />
        </div>
    </form>

此外，所有这些都嵌套在服务器上运行的表单中。

Default.aspx.cs

 // Buttin Submit Methods
    protected void eventFormSubmitBtn_Clicked(object sender, EventArgs e)
    {
        saveData();
        goBackToStartPage();
    }

所以现在即使表单有空字段，单击按钮仍会将我发送到另一页。它是否与我的事件类型字段集有关，我在服务中断或计划中断之间切换？我想这样做，当选择服务中断时，按下的发送按钮不起作用，除非必需的字段具有值并且在选择计划中断时相同。