Checkbox JSP + JavaScript multi-choice checkbox value implementation

<Script language ="Javascript">

 

//Select all or not all

Function checkall (){

VaR ischecked = (document. testform. checkall. Checked = true );

VaR elements = Document. testform. elements;

VaR counter = elements. length;

 

For (I = 0; I <counter; I ++ ){

VaR element = elements [I];

 If (element. type = "checkbox "){

Element. Checked = ischecked;

 }

}

}

 

//YesCheckboxSelected

Function anybodychecked (){

VaR elements = Document. testform. elements;

VaR counter = elements. length;

For (I = 0; I <counter; I ++ ){

VaR element = elements [I];

If (element. Checked = true ){

Return true;

 }

}

Return false;

}

 

</SCRIPT>

<Form name = "testform">

Select All:

<Input type = "checkbox" id = "checkall" onclick = "checkall ()"/>

Multiple choice box list:

<Input type = "checkbox" name = "checkbox" value = "1"/>

<Input type = "checkbox" name = "checkbox" value = "2"/>

<Input type = "checkbox" name = "checkbox" value = "3"/>

</Form>

 

// actual protection value {" 1 "," 2 ", "3"}
string [] checkboxs = request. getparametervalues ("checkbox");
// you don't need to write anything else, iterator just set the value .