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[英]Filter Select (Drop Down) Options Based on Value Selected in another Select
[英]Filter Select Options based on another select
基本上我有兩個下拉菜單。 一個具有三個值 1,2 和 3,另一個具有 1 到 10 的值,例如,當我在第一個下拉列表中選擇 1 時,第二個下拉列表僅顯示從 1 到 4 的選項。選項是從加載到模型的數據庫中獲得的列表。
<tr class="Values">
<td style="padding-left:70px">
@s.FieldFor(m => m.Values).Setup(false, false, false, false, false).AsDropDown().Attr("onchange", "HideSubValues()")
</td>
</tr>
<tr class="subvalues">
<td style="padding-left:70px">
@s.FieldFor(m => m.SubValuesID).Setup(false, false, false, false, false).AsDropDown()
</td>
</tr>
function HideSubValues() {
if ($("#t1_ValuesID").val() == "1" ||
$("#_ValuesID").val() == "1" ||
$("#t1_ValuesID").val() == "2" ||
$("#_ValuesID").val() == "2" ||
$("#t1_ValuesID").val() == "4" ||
$("#_ValuesID").val() == "4")
$(".subvalues").show();
else if ($("#t1_ValuesID").val() == "3" ||
$("#_ValuesID").val() == "3") {
$(".subvalues").hide();
$("#t1_SubValuesID").val("0");
}
if ($("#t1_ValuesID").val() == "1" ||
$("#_ValuesID").val() == "1") {
//ONLY SHOWS OPTIONS WHERE VALUE IS EQUAL TO 1,2,3,4 in the dropdown which ID is #t1_SubValuesID
} else if ($("#t1_ValuesID").val() == "2" ||
$("#_ValuesID").val() == "2") {
//ONLY SHOWS OPTIONS WHERE VALUE IS EQUAL TO 5,6,7,8 in the dropdown which ID is #t1_SubValuesID
} else if ($("#t1_ValuesID").val() == "4" ||
$("#_ValuesID").val() == "4") {
//ONLY SHOWS OPTIONS WHERE VALUE IS EQUAL TO 9,10 in the dropdown which ID is #t1_SubValuesID
}
}
基本上,這在尋找答案時對我有用,以防有人需要。 您只需要瀏覽所有選項,並且那些滿足您的條件要求的人顯示他們不顯示其他人。
function HideSubValues() {
if ($("#t1_ValuesID").val() == "1" ||
$("#_ValuesID").val() == "1") {
for (var i = 1; i < 11; i++) {
if ($("#t1_ValuesID")[0].options[i].value == 1
|| $("#t1_ValuesID")[0].options[i].value == 2
|| $("#t1_ValuesID")[0].options[i].value == 3
|| $("#t1_ValuesID")[0].options[i].value == 4) {
$("#t1_ValuesID")[0].options[i].style.display = 'list-item';
} else {
$("#t1_ValuesID")[0].options[i].style.display = 'none';
}
}
} else if ($("#t1_ValuesID").val() == "2" ||
$("#_ValuesID").val() == "2") {
for (var i = 1; i < 11; i++) {
if ($("#t1_ValuesID")[0].options[i].value == 5
|| $("#t1_ValuesID")[0].options[i].value == 6
|| $("#t1_ValuesID")[0].options[i].value == 7
|| $("#t1_ValuesID")[0].options[i].value == 8) {
$("#t1_ValuesID")[0].options[i].style.display = 'list-item';
} else {
$("#t1_ValuesID")[0].options[i].style.display = 'none';
}
}
} else if ($("#t1_ValuesID").val() == "3" ||
$("#_ValuesID").val() == "3") {
for (var i = 1; i < 11; i++) {
if ($("#t1_ValuesID")[0].options[i].value == 9
|| $("#t1_ValuesID")[0].options[i].value == 10) {
$("#t1_ValuesID")[0].options[i].style.display = 'list-item';
} else {
$("#t1_ValuesID")[0].options[i].style.display = 'none';
}
}
}
}
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