Value Assignment of checkbox, RadioButton, DropDownList in Jquery

Source: Internet
Author: User

1. To get the selected value, three methods are available:

$ (' input:radio:checked '). Val ();

$ ("input[type= ' Radio ']:checked"). Val ();

$ ("Input[name= ' rd ']:checked"). Val ();

2. Set the first radio to the selected value:

$ (' Input:radio:first '). attr (' checked ', ' checked ');

Or

$ (' Input:radio:first '). attr (' checked ', ' true ');

Note: attr ("Checked", ' checked ') = attr ("Checked", ' true ') = attr ("Checked", true)

3. Set the last radio as the selected value:

$ (' Input:radio:last '). attr (' checked ', ' checked ');

Or

$ (' Input:radio:last '). attr (' checked ', ' true ');

4. Set any one of the radio to the selected value according to the index value:

$ (' Input:radio '). EQ (index value). attr (' checked ', ' true '); index value =0,1,2 ....

Or

$ (' Input:radio '). Slice. attr (' checked ', ' true ');

5. Set Radio to the selected value based on value

$ ("input:radio[value= ' Rd2 ')"). attr (' checked ', ' true ');

Or

$ ("input[value= ' Rd2 ')"). attr (' checked ', ' true ');

6. Remove Radio with value Rd2

$ ("input:radio[value= ' Rd2 ')". Remove ();

7. Delete the first few radio

$ ("Input:radio"). EQ (index value). Remove (); index value =0,1,2 ....

such as removing the 3rd radio:$ ("Input:radio"). EQ (2). Remove ();

8. Traverse Radio

$ (' Input:radio '). each (function (Index,domele) {

Write code

});

Value Assignment of checkbox, RadioButton, DropDownList in Jquery

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