: Enable gets the element that can enter the state
:d isabled to get elements that cannot be entered
: Checked gets the selected form element
: Seleced Gets the selected element in the dropdown box
Let's look at an example
Html
Copy Code code as follows:
<body>
<form id= "Form1" runat= "Server" >
<div>
<ul>
<li><label> Order Number: </label><input type= "text" disabled= "disabled"/></li>
<li><label> Order Owner: </label><input type= "Text"/></li>
<li>
<input type= "checkbox" Name= "Ca" value= "Red"/> Red
<input type= "checkbox" Name= "Ca" value= "Yellow"/> Yellow
<input type= "checkbox" Name= "Ca" value= "Blue"/> Blue
<input type= "checkbox" Name= "Ca" value= "green"/> Green
</li>
<li>
<select multiple= "multiple" >
<option> Select 1</option>
<option> Select 2</option>
<option> Select 3</option>
<option> Select 4</option>
</select>
</li>
</ul>
</div>
</form> <div id= "MSG" >
<p id= "CC" ></p>
<p id= "option" ></p> </div>
</body>
JavaScript code:
Copy Code code as follows:
<script type= "Text/javascript" >
JQuery (function () {
$ ("input:text:disabled"). Val ("Cannot enter");
$ ("input:text:enabled"). Val ("can input");
(
function Checkboxclick () {
$ (": CheckBox"). Unbind ("click", Checkboxclick);
var vv= ';
$ (": checkbox:checked"). each (function () {
vv+=$ (This). Val () + ",";
});
$ ("#cc"). HTML ("Selected data:" +VV);
$ (": CheckBox"). Click (Checkboxclick);
}
)()
$ ("select"). Change (function () {
var tt= ';
$ ("Select Option:selected"). each (function () {
tt+=$ (This). Text () + ",";
});
$ ("#option"). HTML ("Selected item is:" +TT);
}). Trigger ("change");
});
</script>
Here are a few points to note:
1 in front of the word bind is used to bind events, then the unbind here is to cancel the event
The 2 trigger () method triggers the specified event type for the selected element.
3 when adding a function in jquery (function () {), add parentheses outside, followed by parentheses, as follows
JQuery (function () {
(
function Check ()
{
})()
})
4 The check box in the implementation layer is selected and assigned to other element values
Html
Copy Code code as follows:
<form id= "Form1" runat= "Server" >
<div>
<input type= "button" id= "btn1" value= "Eject"/>
<input type= "checkbox" Name= "Ca" value= "Red"/> Red
<input type= "checkbox" Name= "Ca" value= "Yellow"/> Yellow
<input type= "checkbox" Name= "Ca" value= "Blue"/> Blue
<input type= "checkbox" Name= "Ca" value= "green"/> Green
<input type= "checkbox" Name= "Ca" value= "white"/> White
<input type= "checkbox" Name= "Ca" value= "Black"/> Black
</div>
<div id= "CC" ></div>
</form>
Javascript
Copy Code code as follows:
JQuery (function () {
(
function Checkboxclick () {
$ (": CheckBox"). Unbind ("click", Checkboxclick);
var vv= ';
$ (": checkbox:checked"). each (function () {
vv+=$ (This). Val () + ",";
})
$ ("#cc"). HTML ("Selected data:" +VV);
$ (": CheckBox"). Click (Checkboxclick);
})()
})
The effect diagram is as follows:
