I have two drop down list shown below second drop down list contains 8 items and first drop down list contains 3 elements based on first dropdown list i have to display particular items in second dropdown list ex: first dropdown list i will select " pass
" then automatically second dropdown list shows only 3 items(out of 8) and if i select "Fail" or " Retake
" then it should show remaining 5 items.
html code :
<td valign="middle" style="font-size: 0.9em" id="attemptstatus">@Html.DropDownListFor(model => model.CTData[i][0].AttemptStatus, new SelectList(
new List<Object>{
new { value = 0 , text = "Select" },
new { value = 1 , text = "Pass" },
new { value = 2 , text = "Fail" },
new { value = 3 , text = "Retake"}
},
"value",
"text",
statusvalue), new { @class = "attemptstatus", @id = "attempttestid" + i }) </td>
<td id="ctpassoption" style="width: 400px">@Html.DropDownListFor(model => model.CTData[i][0].RemarkId1, new SelectList(Model.PassOptions, "Value", "Text", Model.CTData[i][0].RemarkId1), new { @class = "ct_option", @id = "passid" + i })</td>
javascript code :
if (($('#attempttestid0').val() === '2') || ($('#attempttestid0').val() === '3'))
{
var a="@ViewBag.TempPass"
var arr=a.split(",");
for(var i=0;i<arr.length;i++)
{
$("#passid0 option[value=" + arr[i] + "]").disable();
}
}
else {
var a1="@ViewBag.TempOther"
var arr1=a1.split(",");
for(var i=0;i<arr1.length;i++)
{
$("#passid0 option[value=" + arr1[i] + "]").disable();
}
}
$('#attempttestid0').on('change', function () {
if ((this.value === '2')||(this.value === '3')) {
var a2="@ViewBag.TempPass"
var arr2=a2.split(",");
for(var i=0;i<arr2.length;i++)
{
$("#passid0 option[value=" + arr2[i] + "]").disable();
}
}
else
{
var a3="@ViewBag.TempOther"
var arr3=a3.split(",");
for(var i=0;i<arr3.length;i++)
{
$("#passid0 option[value=" + arr3[i] + "]").disable();
}
}
});
Please attach a fillde. For now I can suggest doing something as follows:
Two drop downs:
<select id="first">
<option value="none">please make a selection</option>
<option value="1st">first set</option>
<option value="2nd">second set</option>
</select>
<select id="second">
<option class="1st"value="val1">value 1</option>
<option class="1st" value="val2">value 2</option>
<option class="1st" value="val3">value 3</option>
<option class="1st" value="val4">value 4</option>
<option class="1st" value="val5">value 5</option>
<option class="2nd" value="val6">value 6</option>
<option class="2nd" value="val7">value 7</option>
</select>
and here is how you make items visible/hidden. You can either assign a class to items or find a set of items to hide by their value
$('#first').change(function(){
switch ($(this).val())
{
case '1st':
$('.1st').show();
$('.2nd').hide();
break;
case '2nd':
$('.1st').hide();
$('.2nd').show();
break;
case 'none':
$('.1st').show();
$('.2nd').show();
break;
}
});
Fiddle: http://jsfiddle.net/8ZVSu/
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