hidden-field | 易学教程

Multiple method calling using single servlet [duplicate]

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This question already has an answer here: How do I call a specific Java method on click/submit event of specific button in JSP? 4 answers I am new to JavaEE and have a query regarding a servlet that has multiple methods. I want to know how I can call a specific method on a servlet, when I click " Submit " button in JSP.? Someone have suggested to use HTML hidden fields but I have no idea on how to implement them in Jsp. You can just give the submit button a specific name. <input type="submit" name="action1" value="Invoke action 1" /> <input type="submit" name="action2" value="Invoke action 2"

pass array hidden field in nested model rails

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I have following code in my view: <% @m1.map(&:id).each do |id|%> <%= b.fields_for :modul1hours do |f| %> <%= f.hidden_field :modul1_id, id %> <%= f.text_field :module_est_hours, :size => 30 %> </tr> <% end %> <%end%> params passing in console Parameters: {"authenticity_token"=>"LJ/ZME2lHZ7VwCDgPKX6OFe326fXSXo5UB4M0cPwbCE=", "esthour"=>{"rfp_id"=>"6", "ecommerce_est_hours"=>"", "modul1hours"=>{"module_est_hours"=>"3"}, "designpages_est_hours"=>"", "cms_est_hours"=>""}, "modul1_ids"=>["12", "13", "14"], "utf8"=>"✓", "project_id"=>"second", "commit"=>"Add Todo"} Current user: admin (id=1) modul1

ASP .net get hidden value from code behind in page_load function

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I have a hidden field that I set in my javascript code: <script type="text/javascript"> function start() { document.getElementById('Hidden1').value = "somme value"; } </script> <body> <form id="form1" runat="server"> <div> <input type="text" id="Hidden1" name="Hidden1" runat="server"/> <div> </form> In my code behind I want to get the input value in my page_load function: protected void Page_Load(object sender, EventArgs e) { if (!Page.ClientScript.IsClientScriptBlockRegistered("start") && !IsPostBack) { Page.ClientScript.RegisterStartupScript(typeof(Page), "start", "start();", true); } string

How to hide form fields in twig template?

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I have a Symfony form that includes two TextType fields. If a certain check evaluates to false , I don't want to display the input fields but output the static content of the field and include the form fields as hidden fields instead. How can I do that? you can use HiddenType , or hide field in template: {{ form_start(form) }} {% if someValue == true %} {{ form_widget(form.fieldName) }} {% else %} {{ form_widget(form.fieldName, { 'attr': {'class': 'hidden-row'} }) }} {% endif %} {# other fields... #} {{ form_end(form) }} or you can use FormEvents like FormEvents::PRE_SET_DATA in FormType. (doc

How to prevent google chrome from caching my inputs, esp hidden ones when user click back?

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问题 i have an asp.net mvc app which have quite a few hidden inputs to keep values around and formatting their names so that i can use the Model binding later when i submit the form. i stumble into a weird bug with chrome which i don't have with IE or Firefox when the user submits the form and click on the back button, i find that chrome will keep my hidden input values as well. this whole chunk is generated via javascript hence i believe chrome is caching this. function addProductRow(productId,

How to prevent google chrome from caching my inputs, esp hidden ones when user click back?

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i have an asp.net mvc app which have quite a few hidden inputs to keep values around and formatting their names so that i can use the Model binding later when i submit the form. i stumble into a weird bug with chrome which i don't have with IE or Firefox when the user submits the form and click on the back button, i find that chrome will keep my hidden input values as well. this whole chunk is generated via javascript hence i believe chrome is caching this. function addProductRow(productId, productName) { if (productName != "") { //use guid to ensure that the row never repeats var guid = $

Is the use of hidden fields in forms insecure?

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For example Imagine I have the following form <%= form_for(@comment) do |f| %> <%= f.hidden_field :user_id%> <%= f.hidden_field :article_id%> <%= f.label :content %><br /> <%= f.text_area :content %> <%= f.submit %> <% end %> I got the :user_id and :article_id values with: Comment.new(:user_id => current_user.id, :article_id => @article.id) When I display the form in the browser it will look like this: <form action="/comments" method="post"> <input some_rails_tokens_here />  <input id="comment_user_id" name="comment[user_id]" type="hidden" value="1" /> <input id="comment

Accessing value of a hidden field on Masterpage from codebehind

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In a follow up to my previous question , I want to get the value of the hidden input field from the child page codebehind. I tried HtmlInputHidden hdnID = (HtmlInputHidden)Page.Master.FindControl("ctl00_hdnField"); but I get a "null" value. A snippet of the Masterpage is: <head runat="server"> <title> <asp:ContentPlaceHolder ID="TitleContent" runat="server"></asp:ContentPlaceHolder> <asp:Literal ID="Literal2" runat="server" Text=" : Logistics Management" /> </title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link href="~/css/styles.css" rel="stylesheet" type="text

Accessing value of a hidden field on Masterpage from codebehind

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问题 In a follow up to my previous question, I want to get the value of the hidden input field from the child page codebehind. I tried HtmlInputHidden hdnID = (HtmlInputHidden)Page.Master.FindControl("ctl00_hdnField"); but I get a "null" value. A snippet of the Masterpage is: <head runat="server"> <title> <asp:ContentPlaceHolder ID="TitleContent" runat="server"></asp:ContentPlaceHolder> <asp:Literal ID="Literal2" runat="server" Text=" : Logistics Management" /> </title> <meta http-equiv="Content

Set the Value of a Hidden field using JQuery

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I want to set the value of a hidden field, using JQuery. Hidden Field: <input id="chag_sort" type="hidden" name="chag_sort"> My JQuery: $("#input[name=chag_sort]").val(sort2); What am I doing wrong? I should also mention in console that sort2 does in fact have a value: DESC. Darin Dimitrov The selector should not be #input . That means a field with id="input" which is not your case. You want: $('#chag_sort').val(sort2); Or if your hidden input didn't have an unique id but only a name="chag_sort" : $('input[name="chag_sort"]').val(sort2); Drop the hash - that's for identifying the id attribute.