1 if ($ ("Input[name=item][value= ' Val ')"). attr (' checked ') ==true)//Determine if a tick has been made Name is the control Name property, and value is the control's Value property
You can not specify a property value, because the value of a set of checkboxes will hold its corresponding ID in the database, preferably written as follows
if ($ ("Input[name=row_checkbox]"). attr (' checked ') ==true)
{
Alert ("J");
}
Else
{
Alert ("Please select data! ");
}
Alternatively, you can write if ($ ("[Name=row_checkbox]"). attr (' checked ') ==true)
jquery Radio value, checkbox value, select Value, Radio selected, CheckBox selected, select selected, and its related
article Category: Web Front end
jQuery 1.3. Under version 2
jquery Radio value, checkbox value, select Value, Radio selected, CheckBox selected, select selected, and its related
Set
gets the value of a set of radio selected items: var item = $ (' input[name=items][checked] '). Val ();
gets the text of the Select selected item
var item = $ ("select[@name =items] option[@selected]"). Text ();
gets the text of the Select selected item: var item = $ ("Select[name=items] option[selected]"). text (); or $ ("Select[name=items]"). Find (" Option:selected "). Text ();
the second element of the Select drop-down box is the currently selected value: $ (' #select_id ') [0].selectedindex = 1;
Select drop-down box value = ' val ' element is currently selected: $ ("Select[name=items] option[value= ' Val ']"). attr ("Selected", "selected");
the second element of the radio Radio Group is the currently selected item: $ (' input[@name =items] '). Get (1). checked = true; or $ (' input[name=items] '). attr ("Checked", ' 1 );
Radio value = ' val ' element is currently selected: $ (' input[name=items] [value= ' Val '] '). attr ("Checked", "checked"); Get Value:
text box, text area: $ ("#txt"). attr ("value");
Multi Box checkbox:$ ("Input[name= ' checkbox ': Checked]"). each (function () {
var val = $ (this). Val ();
});
Radio Group Radio: $ ("input[type=radio][checked]"). Val ();
The value of the drop-down box select is: $ (' select '). val ();
Drop -down box select the text value selected: $ ("select"). Find ("option:selected"). Text ();
Control form elements:
text box, text area: $ ("#txt"). attr ("value", ");//Clear Contents
$ ("#txt"). attr ("value", ' 11′ ');//fill content
multiple marquee checkbox:
the second element of the checkbox is ticked: $ ("Input[name=items]"). Get (1). checked = true;//tick
$ ("Input[name=items]"). Get (1). checked = false;//do not tick
checkbox value= ' val ' element before tick: $ ("Input[name=item][value= ' Val ')"). attr ("Checked", true); or $ ("input[name=item][ Value= ' Val '] "). attr (" Checked "," checked ");
if ($ ("Input[name=item][value= ' Val ')"). attr (' checked ') ==true)//Determine if a tick has been made
Radio Group Radio: $ ("Input[type=radio]"). attr ("Checked", ' 2′ ');//Set value=2 items as the current selection
Drop- down box select: $ ("#sel"). attr ("value", '-sel3′ ');//Set the VALUE=-SEL3 item as the current selection
$ ("<option value= ' 1′>1111</option><option value= ' 2′>2222</option>"). AppendTo ("#sel") option to add a drop-down box
$ ("#sel"). empty ();//Empty drop-down box
jquery Gets the value of the radio selection
Code
$ ("Input[name= ' Radio_name '][checked]"). Val ();//Select the value of the selected radio
$ ("#text_id"). focus (function () {//code ...})//event triggered when object text_id gets focus
$ ("#text_id"). blur (function () {//code ...})//event triggered when object text_id loses focus
$ ("#text_id"). Select ();//Make the Vlaue value of the text box selected
$ ("Input[name= ' radio_name '][value= ' to select Radio Value '").
attr ("checked", true);//Set radio as selected based on value values
jquery Gets the value of the checkbox selection
$ ("Input[name= ' Checkbox_name '][checked]");//Select a collection of selected checkbox elements if you want to
value you need to traverse this collection
$ ($ ("Input[name= ' Checkbox_name '][checked]")).
Each (function () {arrchk+=this.value + ', ';}); /Traverse the collection of selected checkbox elements to get value values
$ ("#checkbox_id"). attr ("checked");//Get the status of a checkbox (there is no selection, return True/false)
$ ("#checkbox_id"). attr ("Checked", true);//Set the status of a checkbox to checked (checked=true)
$ ("#checkbox_id"). attr ("checked", false);//Set a checkbox with a status of unchecked (Checked=false)
$ ("Input[name= ' Checkbox_name ']"). attr
("Checked", $ ("#checkbox_id"). attr ("checked"));//According to the 3,4,5 bar, you can analyze the meaning of this code
$ ("#text_id"). Val (). Split (",");//Returns an array of value values of text as ', ' delimited |
