Hi All, I have a html checkbox control and Button in my User control. Now i need to check whether checkbox is checked when button is clicked. I am using the below code. But it does not work :( In webusercontrol1.ascx, $(document).ready(function () { $("input[id*=remember]")...
多选框checkbox: $("#chk1").attr("checked",'');//不打勾 $("#chk2").attr("checked",true);//打勾 if($("#chk1").attr('checked')==undefined) //判断是否已经打勾 单选组radio: $("input[@type=radio]").attr("checked",'2');//设置value=2的项目为当前选中项 下拉框select: $("#...
checked属性是最直接、最常用的方法来判断Checkbox是否被选中。通过获取Checkbox元素,然后检查其checked属性值即可。 实际案例:基础判断 <!DOCTYPEhtml>Checkbox Checked ExampleCheck me!Check if CheckedfunctioncheckCheckbox(){varcheckbox=document.getElementById("myCheckbox");if(checkbox.checked){alert("Checkbox is ...
I am looking for a javascript to cause a popup info box IF a checkbox from a radio button is selected. I have a section PDF form that involves how an employee was transported to get medical care. They are given 3 options. There are 3 radio buttons that correspond with th...
document.getElementById("Name").required = this.checked; }) Fields don't need to be required if checked: document.getElementById("needRequired").addEventListener('change', function(){ if(this.checked) { document.getElementById("Name").required = false...
How do you check if an HTML form checkbox field is checked in JavaScript?Craig Buckler
Atleast one checkbox is compulsory to be checked Attempt by method 'Microsoft.VisualBasic.CompilerServices.Symbols+Container.InvokeMethod(Method, System.Object[], Boolean[], System.Reflection.BindingFlags)' to access method 'System.Data.Common.DataRecordInternal.get_Item(System.String)' failed. Attempted...
Due to some limitation, i can't use onClick javascript event to detect checkbox being checked. Alt solution to auto detect checkbox being checked in the page using jQuery javascript framework. I just embed few lines of javascript and it will auto detect
6/7/01 update: Please see a response to a letter on this article for further details on how to check if there is only ONE checkbox in a set. (For instance, if you are building your set from a table and don't know if there is more than one checkbox in the set or not.)Letters...
DOCTYPE html>JavaScript CheckboxLet see how to know if check box is checked:Checkbox:<pid="message"style="display:none">Checkbox is Checked Now! JavaScript Code: functioncheckfunction(){varcheck=document.getElementById('check');varmessage=document.getElementById('message');if(check.checked==true...