checkbox

问题 I have three parameters namely model, destination and criteria. Whenever the user chooses a model from the dropdown list, where the destination and criteria is dependent, dynamic checkboxes for the destination is shown. And when a user tick a destination, its specific criteria will show. This is a follow up question: How to display multiple list of checkboxes dynamically on dropdown list <script type="text/javascript"> function populate(model, destination) { var mod = document.getElementById

问题 i have 50 checkboxes for 50 american states. The user can choose all 50 or only 1( so basically any number he wants). Based on his choice, I want to insert or update the table in sql server 2008. e.g- Color = blue and chk1=check, chk2= check and chk3 = check (chk = checkbox). now the user wants to ad 10 more states to this or remove these 3 and add 5 more. so u basically get the idea. the table in database looks like this - ID Color State_id there is a table called states, so stateid shall

问题 Hi i could really do with some help on this as I cannot get the button to select all checkboxes within .voltSiteResultContainer to work HTML Example: <div class="pageContainer"> <input type="button" class="check" value="check all"> // want this button to check all on page <div class="voltSiteResultContainer"> <div class="checkWrap"> <input type="button" class="checkSite" value="check all"> // want this button to check all within .voltSiteResultContainer </div> <input name="checkFile" type=

问题 Basically i'd like to activate radio buttons using a checkbox as per the conditions given below- If i check the checkbox, the first radio would be checked. If i change to another radio button, the checkbox still checked. If i uncheck the checkbox, I would like to uncheck any radio button. I mean, the radio buttons need to be checked if the checkbox is checked, and if the checkbox is unchecked, the radio buttons need to be unchecked as well. I've tried a bunch of partial solutions, but none of

问题 I am having a very hard time trying to figure out a solution for this. I have a checkbox group where the first checkbox is the parent and the following in that set will be child. I want the parent checkbox to be selected automatically if one of the child's checkbox is selected. Similarly parent needs to be get unchecked if no child is selected. Here is my jsfiddle example: http://jsfiddle.net/Alien_time/PqTR7/3/ The main difficulty I am facing is because the checkboxes are created dynamically

问题 I'm learning Android (I'm a beginner) and making a program for CheckBox . Everything seems fine, but when I cleaned my project suddenly, R.java was deleted and it's giving an error. I checked three times, but not getting it back. Here is my source code: activity_main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" >

问题 I am trying to have my form data stored in a mysql database. I want everything that the user types or clicks to be stored there. I am able to have my text fields stored in mysql successfully. I am having trouble figuring out how to send multiple check boxes, radio buttons, and drop down lists to mysql and have it stored there. I don't even know where to begin. Please help. CREATE TABLE wer( ID int NOT NULL auto_increment, student_gender varchar(6), student_session_one_preference varchar(30),

问题 I have a small form with 9 Check Boxes in it. I am trying to make hotkeys for those boxes that correspond with the Numpad, but I'm having the darnedest time. I have two main problems: 1. private void checkBox1_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.NumPad7) { MessageBox.Show("It's working"); } } That is my code. It works, but doesn't do what I want. It makes a message appear, but ONLY if that checkbox is highlighted. I think KeyPreview might help in this context, but

问题 I have lots of checkbox element on my Grails form , one is this: <g:checkBox id="consolidate" name="consolidate" value="${true}" checked="${false}" /> Then on the receiving controller , I verify the value of the checkbox using this code : println params?.consolidate And it displays: on Regardless whether I've tick my checkbox or not. In other language, if the checkbox is not ticked, its value on the controller will be null or undefined . What should be its value when unchecked, and what is

问题 I'm trying to make a html5 form with different input fields, with a checkbox that can enable/disable input fields. When the checkbox is selected, it should be possible to enter data into an input field. When the checkbox isn't selected, it shouldn't be possible to enter data to the input field. I already tried this (just to try if enabling/disabling works): <script> document.getElementById("checkbox").onclick = function() { document.getElementById("inputfield").disabled=true; } </script> The