requiredfieldvalidator

问题 I want to reset a form but I'm using a few "Required Field Validator" every time I click the reset button the error message shows requiring fields... What I tried: ReuiqredFieldValidator.Enabled = false; TextBox.Text=""; Response.Redirect("Samepage.aspx"); Response.Redirect("Request.RawUrl"); <input type=reset> 回答1: Try this: <asp:Button runat="server" ID="reBt" Text="Reset" OnClientClick="this.form.reset();return false;" CausesValidation="false" /> from here 回答2: You can apply

问题 I have some requiredFileldvalidators in my asp.net site that i want to set invisible until needed. But when i set them to visible=false they do not fire. They do work if they are set visible=true. Is this the correct behavior of this control or is this wrong. I want them invisible due to styling issues when visible. 回答1: Setting Visible="false" in ASP.NET will cause an element to not be rendered out to the page. So, it essentially doesn't exist on the client side. They should be invisible by

问题 I have a TextBox which i use to store a url to applied a <asp:HyperLink> control. What i want to do is fire off the RequiredFieldValidator when the TextBox.Text value is empty and the user clicks save . As far as i can tell, my logic is OK, but the validator isn't firing off? Here's the markup: <div class="frmRow"> <div class="frmControls"> <asp:Label ID="lblLink" AssociatedControlID="txtImgUrl" runat="server" Text="Image URL"></asp:Label> <asp:RequiredFieldValidator ID="imgUrlValidator"

问题 I'm trying to get a sequence of things to happen in the correct order, but no luck. What I have is a number of fields with asp:ReuiredFieldValidators and asp:ValidatorCallout to display validation messages. This is triggered with a button Save with validation="true". If all validates, it should display a modal dialog asking for two choises on how to save the data. No matter the answer, it should always continue at this stage to code behind save function.The AjaxToolkit_ModalPopupExtender is

问题 I need to add required rule if one field is available. Also need to check if it is an integer and 10 digit. So I added the rule like below. 'id_number' => 'sometimes|required|digits:10|integer' Validations works only when the field is available. But here required rule is not working. It directly shows integer error even if the field is empty. I use Laravel 5.1 回答1: Finally I figured it! You need to change the order of required rule to last. It works when I add rule like this, 'id_number' =>

问题 Before adding the ScriptManager when I was clicking on the login button it was showing the required field warning without page postback but after that it has started to do postback first and then validate fields. It's required to add a ScriptManager when there is an UpdatePanel on the page. How can I fix this so it doesn't postback on RequiredFieldValidator ? Login Page <form id="signinform" runat="server" defaultfocus="username" defaultbutton="LogInBtn"> <asp:scriptmanager id=

问题 I need to validate various ASP.NET controls, but instead of displaying the standard text/asterisk/image next to each when validation fails, I need to display custom content (change the outline color of the input textbox, display a tooltip, etc.). I could use a standard validation control in most cases (e.g., RequiredFieldValidator for a TextBox), except for the display when validation fails. I've started out creating CustomValidators, but I need to do this many times for various validations

问题 I have GridView: <asp:GridView ID="MyGridView" runat="server" ShowFooter="true" AutoGenerateColumns="False" Visible="True"> <Columns> <asp:BoundField DataField="id" ItemStyle-HorizontalAlign="center"/> <asp:BoundField DataField="fullName" /> <asp:TemplateField HeaderText="situation>"> <ItemTemplate> <asp:DropDownList ID="dl_situation" runat="server"> </asp:DropDownList> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <ItemTemplate> <asp:TextBox ID="tbNr" runat="server"></asp:TextBox>

问题 I'm using jQuery tools validator for my web app in ASP.net MVC4. I'm trying to validate dropdownbox using validator without success. I've gone through this question, but it dosen't solved my problem. my code is as below. $.tools.validator.fn("select[required=required]", function(input, value) { // If the first item in the list is selected return FALSE alert("Inside required of dropdown"); if(input[0].options[0].selected) { alert("returning false"); en: "Please select value from this drop down

问题 Firstly I have seen the other threads on this topic and I just want something cleared up that I am stuck on. I have this textbox control and required field validator: <td class="style1"> <asp:TextBox runat="server" ID="txtFirstname"></asp:TextBox> </td> <td> <asp:RequiredFieldValidator ID="rfvFirstname" runat="server" ControlToValidate="txtFirstname" >*</asp:RequiredFieldValidator> </td> And this javascript code <script type="text/javascript"> function chkValidators() { alert("enter function