checked

问题 I handle my checkbox click event with the CurrentCellDirtyStateChanged . What I want to be able to do is handle the same event when I click the cell that contains the checkbox too, i.e. when I click the cell, check the checkbox and call the DirtyStateChanged. Using the following code does not help much, it does not even call the CurrentCellDirtyStateChanged . I've run out of ideas. private void dataGridView_CellClick(object sender, DataGridViewCellEventArgs e) { if(dataGridView.Columns[e

问题 I'm currently developing a site that uses the :checked variable to apply rules to the CSS. I've got a checkbox input that when triggered, should accomplish two things. The first thing it should do is expand a div from a height of 0 to 200 when checked, and back to 0 when unchecked. I had no problems with triggering that first task. The second thing that should be accomplished upon checking the box, is a transform: rotate(45deg) of a div with a " +" in it that should rotate 45 degrees into an

问题 Hi i want to make checkbox checked or unchecked when i click div with text. Using jquery 1.9.1 here is a link to js fiddle <div class="tel_show"> <input type="checkbox" name="whatever" />   visible </div> $("div.tel_show").live("click",function(event) { var target = $(event.target); if (target.is('input:checkbox')) return; var checkbox = $(this).find("input[type='checkbox']"); if( checkbox.attr("checked") == "" ){ checkbox.attr("checked","true"); } else { checkbox.attr("checked",""); } }); js

问题 I've created a basic 2 radio button form as seen in my example below. Observing the browser rendering, we see item 1 selected. We inspect item 1 and 2. When I click item 2, I expect item 1's checked=checked to be remove. I expect item 2 receive the attribute checked=checked. Is this not the expected behavior? <div> <span>Item 1</span> <input type="radio" name="radio1" id="radio1" checked="checked" /> </div> <div> <span>Item 2</span> <input type="radio" name="radio1" class="checkbox" id=

问题 I need to do something like this: <asp:RadioButton ID="rbDate" runat="server" Text="Date" GroupName="grpPrimary" /> and be able to check the value of the radio button's checked value in jQuery, but my attempts like these don't return true/false. if ($('[name=rbDate]').attr("Checked")) if ($('[name=rbDate]').attr("Checked").val()) if ($('[name=rbDate]:checked').val()) A little help? 回答1: This is probably the easiest way to do it. The *= searches the whole id attribute for rbDate which takes

问题 In the snippet below, blue div should hide when the checkbox is checked. Yet, it doesn't. I've tried a lot of different syntax, but no luck so far. if (document.getElementById("check".checked = "true")) { document.getElementById("box").style.visibility = "hidden"; } #box { background: lightblue; width: 200px; height: 200px; } <input type="checkbox" id="check"> <div id="box"></div> 回答1: Here is what you wanted. http://jsfiddle.net/3ywqy72w/8/ There were many problems with the code you have

问题 When must we use checked operator in C#? Is it only suitable for exception handling? 回答1: You would use checked to guard against a (silent) overflow in an expression. And use unchecked when you know a harmless overflow might occur. You use both at places where you don't want to rely on the default (project-wide) compiler setting. Both forms are pretty rare, but when doing critical integer arithmetic it is worth thinking about possible overflow. Also note that they come in two forms: x =

问题 I'm using the cool feature of the ListView to show a checkbox next to the item in the ListView. I bind my list to an array of strings. The onClick and onSelectedItem listeners get called fine, in this way I know the index of the "string" checked (or unchecked). I'm storing all the checked strings into preferences (as a comma-concatenated-string), and everytime the activity becomes visible I would like to set the checked items back in the listview. Is there a way of doing it? or the CHOICE

问题 I can't figure this one out. According to W3 Schools, the checked property sets or returns the checked state of a checkbox. So why does $('input').checked ? $('div').slideDown() : $('div').slideUp(); not work? Using prop however, does work. $('input').prop('checked') ? $('div').slideDown() : $('div').slideUp(); This is for a checkbox that is checked based on a database value. 回答1: checked is a DOM element property so use it on DOM elements instead of jQuery objects. $('input')[0].checked if

问题 Looked at the HTML spec, but couldn't make heads or tails of it: http://www.w3.org/TR/html5/the-input-element.html#attr-input-checked What is the correct way to check a checkbox in HTML (not dynamically)? checked="true" checked="checked" What is the correct way to uncheck a checkbox? <input type="checkbox" /> with no checked attribute checked="false" checked="none" Where to check the HTML specification to check/uncheck a checkbox? 回答1: <input type="checkbox" checked="checked" /> or simply