Unable to target the first child of a specific class within the <select> element using CSS

Question

Unable to target the first child of a specific class within the <select> element using CSS

Take a look at my fiddle:

This is the snippet of my html code:

    <legend>Team Type</legend>
    <label>* Select Type :</label>

    <select name="team_type" style="width:150px;" id="team_type">
        <option value="1">Baseball</option>
        <option value="2">Soccer</option>
    </select>
    <div style="clear: both"></div>
    
    // Many more league options...

</select>

This portion shows my javascript code:

$("#team_type").bind("change",function() {
    $(".league_group").hide();
    $(".league_group_"+$(this).val()).show();
    $("#league_type").val($(".league_group_"+$(this).val()+":first-child").val());
});

And this is what I'm aiming for:

I aim to automatically select the first visible option in the league group corresponding to the selected team type whenever a user makes a selection.

For instance, if soccer is chosen in team_type, then the league_type should automatically choose the first child of league_group_1 and vice versa.

javascript jquery css

Answer 1

Answer №1

Unselect all options, then display the relevant ones after filtering, finally selecting the first one.

$("#team_type").on("change", function () {
    $(".league_group").hide()
                      .prop('selected', false)
                      .filter('.league_group_'+this.value)
                      .show()
                      .first()
                      .prop('selected', true);
}).trigger('change');

FIDDLE

This method may still have issues across different browsers.

Answer 2

Unselect all options, then display the relevant ones after filtering, finally selecting the first one.

$("#team_type").on("change", function () {
    $(".league_group").hide()
                      .prop('selected', false)
                      .filter('.league_group_'+this.value)
                      .show()
                      .first()
                      .prop('selected', true);
}).trigger('change');

FIDDLE

This method may still have issues across different browsers.

Answer 3

Answer №2

If you want to set an option as selected, try using

$(".league_group_"+$(this).val()).eq(0).prop('selected',true);

:

$("#team_type").on("change",function() {
  $(".league_group").hide();
  $(".league_group_"+$(this).val()).show();
  $(".league_group_"+$(this).val()).eq(0).prop('selected',true);
});

See the demo in action here!

Answer 4

If you want to set an option as selected, try using

$(".league_group_"+$(this).val()).eq(0).prop('selected',true);

:

$("#team_type").on("change",function() {
  $(".league_group").hide();
  $(".league_group_"+$(this).val()).show();
  $(".league_group_"+$(this).val()).eq(0).prop('selected',true);
});

See the demo in action here!

Answer 5

Answer №3

In my opinion, minimizing the amount of HTML is a more efficient way to handle code. I have created a fiddle for demonstration purposes. You can view it by clicking on this link: http://jsfiddle.net/shibualexis/y5jFQ/

Below is the JSON representation of the team and its corresponding league type.

//Team and League Type represented as JSON
var teamType = ["team1","team2","team3"];
var leagueType = {
                    "team1":["Team1league1","Team1league2","Team1league3"],
                    "team2":["Team2league1","Team2league2"],
                    "team3":["Team3league1","Team3league2","Team3league3","Team3league4"]                 
                 };

To populate the league list based on the selected team, you can use the following function.

function fillLeagueList(){
    var teamSelected = document.getElementById("teamSelect").value;
    var leagueListBox = document.getElementById("leagueSelect");
    var team = teamType[teamSelected];
    var leagueList = leagueType[team];

    while(leagueListBox.length > 0){
        leagueListBox.remove(0);
    }

    for(var i=0; i < leagueList.length; i++)
    {
        var option = document.createElement("option");
        var leagueName = leagueList[i]
        option.text = leagueName;
        option.setAttribute("value",leagueName);
        leagueListBox.add(option);
    }

}

Answer 6

In my opinion, minimizing the amount of HTML is a more efficient way to handle code. I have created a fiddle for demonstration purposes. You can view it by clicking on this link: http://jsfiddle.net/shibualexis/y5jFQ/

Below is the JSON representation of the team and its corresponding league type.

//Team and League Type represented as JSON
var teamType = ["team1","team2","team3"];
var leagueType = {
                    "team1":["Team1league1","Team1league2","Team1league3"],
                    "team2":["Team2league1","Team2league2"],
                    "team3":["Team3league1","Team3league2","Team3league3","Team3league4"]                 
                 };

To populate the league list based on the selected team, you can use the following function.

function fillLeagueList(){
    var teamSelected = document.getElementById("teamSelect").value;
    var leagueListBox = document.getElementById("leagueSelect");
    var team = teamType[teamSelected];
    var leagueList = leagueType[team];

    while(leagueListBox.length > 0){
        leagueListBox.remove(0);
    }

    for(var i=0; i < leagueList.length; i++)
    {
        var option = document.createElement("option");
        var leagueName = leagueList[i]
        option.text = leagueName;
        option.setAttribute("value",leagueName);
        leagueListBox.add(option);
    }

}

Unable to target the first child of a specific class within the <select> element using CSS

Answer №1

Answer №2

Answer №3

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