Radiobutton,input,checkbox value Assignment in jquery to implement code _php techniques

1, jquery access to a single select group radio
$ ("Input[name= ' name ']:checked"). Val ();

2. jquery gets the next value of RadioButton
$ ("Input[name= ' name ']:checked"). Next (). Text ()
$ ("Input[name= ' name ']:checked"). Val ()

3, jquery get the value of input
$ (' #id '). Val ()

4. jquery to judge multiple-selection box checkbox
$ ("#id: CheckBox"). attr ("checked")
Takes a value of $ ("#id"). attr ("value");
The assignment is directly to the value in the text (), Val ()

How does jquery get the Text,areatext,radio,checkbox,select value?
$ ("input"). Val ();
$ ("textarea"). Text ();
$ ("select"). Val ();

Control form elements:
text box, text area: $ ("#txt"). attr ("Value", "");/empty content
$ ("#txt"). attr ("value", ' 11 ');//fill content
Multi-Marquee checkbox: $ ("#chk1"). attr ("Checked", "");/no tick.
$ ("#chk2"). attr ("Checked", true);/tick
if ($ ("#chk1"). attr (' checked ') ==undefined)//judge whether it has been ticked

Single-select group radio: $ ("input[@type =radio]"). attr ("Checked", ' 2 ');//Set value=2 project is currently selected

Dropdown box Select: $ ("#sel"). attr ("value", '-sel3 ');//Set VALUE=-SEL3 item as 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 and sets the value of the Select Drop-down Box article Category:. NET programming

Get select:
Gets the text selected by select:
$ ("#ddlRegType"). Find ("option:selected"). Text ();

Gets the value selected by select:
$ ("#ddlRegType"). Val ();

Gets the index selected by select:
$ ("#ddlRegType"). Get (0). SelectedIndex;

Set Select:
Set the index selected by select:
$ ("#ddlRegType"). Get (0). Selectedindex=index;//index is the index value

Set the value selected by select:
$ ("#ddlRegType"). attr ("value", "Normal");
$ ("#ddlRegType"). Val ("Normal");
$ ("#ddlRegType"). Get (0). value = value;

Set selected text for select:
var count=$ ("#ddlRegType option"). Length;
for (Var i=0;i<count;i++)
{if ($ ("#ddlRegType"). Get (0). Options[i].text = text)
{
$ ("#ddlRegType"). Get (0). options[i].selected = true;
Break
}
}
$ ("#select_id option[text= ' jQuery ']"). attr ("selected", true);

To set the SELECT option item:
$ ("#select_id"). Append ("<option value= ' value ' >Text</option>"); Add an option
$ ("#select_id"). Prepend ("<option value= ' 0 ' > Please select </option>"); Insert an option before
$ ("#select_id option:last"). Remove (); Delete the maximum index value option
$ ("#select_id option[index= ']"). Remove ()//delete option with index value of 0
$ ("#select_id option[value= ' 3 ']"). Remove (); Delete option with a value of 3
$ ("#select_id option[text= ' 4 ']"). Remove (); Delete option with text value of 4

Empty Select:
$ ("#ddlRegType"). empty ();