Related to drop down selecting multiple values

[Ashutosh Arya]

Hi,

I wanted to have a drop down in which multiple values can be selected at a time but at the same time i want to set that how many values can be selected (for eg: user can set whether 3 values can be selected or 5 values can be selected at a time).

Please help,

Aashu.

[Seetharaman Venkatasamy]

you can validate the number of selection on serverside

[Bear Bibeault]

Nothing to do with JSP, so moved to a more appropriate forum.

[Mansi Mishra]

Ashutosh Arya wrote:Hi,

I wanted to have a drop down in which multiple values can be selected at a time but at the same time i want to set that how many values can be selected (for eg: user can set whether 3 values can be selected or 5 values can be selected at a time).

Please help,

Aashu.

Hi Aashu...

This is possible using javascript as well...
iterate through the list, and check each element, if its selected...
set a counter to check the no. of elements selected...

Please find the code below implemented with a <h:selectManyListbox id="teamList">

var teamCount = (document.getElementById('formName:teamList')).length;
var count=0;
for (var i = 0; i < teamCount; i = i + 1) {
var tempChar = (document.getElementById('formName:teamList')).options[i];
if(tempChar.selected){
count=count+1;
}
if(count>1)
break;
}

if(count>1){
alert("Only single team can be selected");
}

The above code allows only one team to be selected.
But in case you have a huge list with thousand of records, this could take some time...


All the Best
Mansi