html multi select checkbox

1. Get checkbox selected$ ("input:checkbox:checked"). Val ()Or$ ("input:[type= ' checkbox ']:checked"). Val ();Or$ ("input:[name= ' ck ']:checked"). Val ();2. Formsjquery high Version (1.7) Property method changes　　Check after output:attr (' checked '): Checked. Prop (' checked '): True. Is (': Checked '): TrueUncheck output:. attr (' checked '): undefined. Prop (' checked '): false. Is (': Checked '): fals

jquery's Checkbox,radio, and select are a difficult and important point for jquery operations, and many front-end novices are not very thorough about it. Long time no, I write sometimes also unavoidably on some operations, remember not clear, now, do some simple summary!1, CheckBox daily jquery operation.Now let's use the following

Reprint Please specify: theviper http://www.cnblogs.com/TheViperThe Duplex duplex binding is the most interesting of the Avalon bindings because it helps developers do a lot of things internally, reducing the amount of code written by developers and making the code more elegant. Here is a general checkbox for a full selection.Requirements: (old-fashioned, or say)1. After check box is selected, the following sub-boxes are all checked, and uncheck box i

Jquery can obtain the implementation code of the form text, areatext, radio, checkbox, and select values. For more information about jquery, see. All are required. Jquery radio, checkbox, select, radio, checkbox, select, and relat

Jquery can obtain the implementation code of the form text, areatext, radio, checkbox, and select values. For more information about jquery, see. All are required. Jquery radio, checkbox, select, radio, checkbox, select, and relat

"]'). Val ();// Obtain the value of the selected item from the drop-down list.VaR CC3 = $ ('. formc select [@ name = "country"]'). ATTR ("ID"); // obtain the ID attribute value of the selected item from the drop-down menu$ ("# Select"). Empty (); // clear the drop-down box // $ ("# select" example .html ('');$ (" A l

1, CheckBox daily jquery operation. Now let's take the following HTML as an example of the checkbox operation. Select All and select All code: CheckBox Properties: var val = $ ("#checkAll"). Val

allFunction _ SelectAll (prefix, s, chk){Var oArr = _ GetColl (prefix, s, chk );For (var o in oArr){OArr [o]. checked = true;}}// Invert SelectionFunction _ RevSelect (prefix, s, chk){Var oArr = _ GetColl (prefix, s, chk );For (var o in oArr){OArr [o]. checked =! OArr [o]. checked;}}// Obtain the valueFunction _ GetColl (prefix, s, chk){Var I = s;Var oArr = new Array ();While (true){Var o = getObj (prefix + '_ ctl' + I + '_' + chk );If (o! = Null){OArr. push (o );}Else{Break;}I ++;}Return oArr;

the full selection is true, the code is as follows:function Onclike () {var j=0for (i = 0; i if (box[i].checked) {J + +}}All.checked= (j==box.length-1) 　　　　/*if (j==box.length-1){All.checked=true}Else{All.checked=false}*/}Scenario two: As long as an option is not selected, the Select All property is False, and the Boolean value of each option is compared with the previous one in a logical manner, with the following code:function Onclike (){var flag=t

In the site of the management of the application of the majority of the background, such as a one-time processing of multiple products, or the deletion of the article to the product of the next frame, and so on, a point is obviously a bit of trouble, if you can put a checkbox for each row, and then unified treatment to do more Today I will use a simple space to explain the implementation of this function principle and implementation process. The

In html, checkbox, radio, and select are used frequently during website development. These three controls can be used to select values. How can we select these controls. This article describes how to use jquery to obtain the selected values of these controls. Jquery gets the

Daily projects, for the list of articles or data, will probably use the checkbox of the full selection or the full selection of functions, the previous project has also written checkbox Choice JS, but have not collated. Just a few days ago a brother encountered this problem, simply, I spent a little time, with the original JS and jquery wrote a version, taking into account the flexibility of the use of the

1. drop-down box: VaR C0 = $ (". formc select [@ name = 'country'] Option [@ selected] "). text (); // get the text of the selected item from the drop-down menu (note that there is a space in the middle)VaR CC2 = $ ('. formc select [@ name = "country"]'). Val (); // obtain the value of the selected item from the drop-down menu.VaR CC3 = $ ('. formc select [@ name

Jquery --- Select All or cancel all of the checkbox Checkbox is an inevitable control in system development. Generally, multiple checkboxes are selected, all are selected, or all are canceled. Some time ago, I encountered the checkbox usage. A few days later, I would like to give some help to my friends who want to use

Prop method when encountering properties such as checked,selected,readonly and disabled, such as the following:// checked // true // undefinedconsole.log (el.prop ("Disabled")); // falseObviously, Boolean values make the next process more logical than string values.PS, if you have JS performance neat, obviously prop performance is higher, because attr need to access the DOM attribute node, access to the DOM is the most time-consuming. This applies to multi