Why Dropdown selected values not passing to the backend in jQuery












0














According to this drop down i want to set four conditions in the backend. when i select the dropdown items console will output the values as it is in the code i implemented.but when i debug the program, passed selected value to the backend is null.






$(document).ready(function() {

$("#secquneceDropdownId").change(function() {
var dropdownSelected = $(this).val();
console.log('dropdownSelected value is' + dropdownSelected);

$.post("/IdeaOfThings/listSequences", {
isDropdownSelected: dropdownSelected,

},

function(data, status) {});

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="filter">Type:</label>
<select class="filter" id="secquneceDropdownId">
<option value="" selected>All</option>
<option value="INSEQUENCE">In Sequence</option>
<option value="OUTSEQUENCE">Out Sequence</option>
<option value="RECIPES">Sequence Mapping</option>
</select>





Why selected value printed in console but why it passing a null value to the backend.










share|improve this question
























  • how are you checking int he backend can you share?
    – guradio
    Nov 12 at 5:51










  • @guradio i just debug the program and check it. is there any problem in above code snappiest? anything wrong in the passing value isDropdownSelected?
    – L.Anush
    Nov 12 at 5:55










  • do you have to pass anything after isDropdownSelected: dropdownSelected,? @L.Anush
    – Kiranramchandran
    Nov 12 at 6:05












  • @Kiranramchandran No i don`t have to pass anything after that.
    – L.Anush
    Nov 12 at 6:09






  • 1




    @L.Anush change success:success to success:function(data){},
    – Kiranramchandran
    Nov 12 at 6:28


















0














According to this drop down i want to set four conditions in the backend. when i select the dropdown items console will output the values as it is in the code i implemented.but when i debug the program, passed selected value to the backend is null.






$(document).ready(function() {

$("#secquneceDropdownId").change(function() {
var dropdownSelected = $(this).val();
console.log('dropdownSelected value is' + dropdownSelected);

$.post("/IdeaOfThings/listSequences", {
isDropdownSelected: dropdownSelected,

},

function(data, status) {});

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="filter">Type:</label>
<select class="filter" id="secquneceDropdownId">
<option value="" selected>All</option>
<option value="INSEQUENCE">In Sequence</option>
<option value="OUTSEQUENCE">Out Sequence</option>
<option value="RECIPES">Sequence Mapping</option>
</select>





Why selected value printed in console but why it passing a null value to the backend.










share|improve this question
























  • how are you checking int he backend can you share?
    – guradio
    Nov 12 at 5:51










  • @guradio i just debug the program and check it. is there any problem in above code snappiest? anything wrong in the passing value isDropdownSelected?
    – L.Anush
    Nov 12 at 5:55










  • do you have to pass anything after isDropdownSelected: dropdownSelected,? @L.Anush
    – Kiranramchandran
    Nov 12 at 6:05












  • @Kiranramchandran No i don`t have to pass anything after that.
    – L.Anush
    Nov 12 at 6:09






  • 1




    @L.Anush change success:success to success:function(data){},
    – Kiranramchandran
    Nov 12 at 6:28
















0












0








0







According to this drop down i want to set four conditions in the backend. when i select the dropdown items console will output the values as it is in the code i implemented.but when i debug the program, passed selected value to the backend is null.






$(document).ready(function() {

$("#secquneceDropdownId").change(function() {
var dropdownSelected = $(this).val();
console.log('dropdownSelected value is' + dropdownSelected);

$.post("/IdeaOfThings/listSequences", {
isDropdownSelected: dropdownSelected,

},

function(data, status) {});

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="filter">Type:</label>
<select class="filter" id="secquneceDropdownId">
<option value="" selected>All</option>
<option value="INSEQUENCE">In Sequence</option>
<option value="OUTSEQUENCE">Out Sequence</option>
<option value="RECIPES">Sequence Mapping</option>
</select>





Why selected value printed in console but why it passing a null value to the backend.










share|improve this question















According to this drop down i want to set four conditions in the backend. when i select the dropdown items console will output the values as it is in the code i implemented.but when i debug the program, passed selected value to the backend is null.






$(document).ready(function() {

$("#secquneceDropdownId").change(function() {
var dropdownSelected = $(this).val();
console.log('dropdownSelected value is' + dropdownSelected);

$.post("/IdeaOfThings/listSequences", {
isDropdownSelected: dropdownSelected,

},

function(data, status) {});

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="filter">Type:</label>
<select class="filter" id="secquneceDropdownId">
<option value="" selected>All</option>
<option value="INSEQUENCE">In Sequence</option>
<option value="OUTSEQUENCE">Out Sequence</option>
<option value="RECIPES">Sequence Mapping</option>
</select>





Why selected value printed in console but why it passing a null value to the backend.






$(document).ready(function() {

$("#secquneceDropdownId").change(function() {
var dropdownSelected = $(this).val();
console.log('dropdownSelected value is' + dropdownSelected);

$.post("/IdeaOfThings/listSequences", {
isDropdownSelected: dropdownSelected,

},

function(data, status) {});

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="filter">Type:</label>
<select class="filter" id="secquneceDropdownId">
<option value="" selected>All</option>
<option value="INSEQUENCE">In Sequence</option>
<option value="OUTSEQUENCE">Out Sequence</option>
<option value="RECIPES">Sequence Mapping</option>
</select>





$(document).ready(function() {

$("#secquneceDropdownId").change(function() {
var dropdownSelected = $(this).val();
console.log('dropdownSelected value is' + dropdownSelected);

$.post("/IdeaOfThings/listSequences", {
isDropdownSelected: dropdownSelected,

},

function(data, status) {});

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label for="filter">Type:</label>
<select class="filter" id="secquneceDropdownId">
<option value="" selected>All</option>
<option value="INSEQUENCE">In Sequence</option>
<option value="OUTSEQUENCE">Out Sequence</option>
<option value="RECIPES">Sequence Mapping</option>
</select>






jquery drop-down-menu parameter-passing






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 12 at 5:52









guradio

13.7k31836




13.7k31836










asked Nov 12 at 5:48









L.Anush

347




347












  • how are you checking int he backend can you share?
    – guradio
    Nov 12 at 5:51










  • @guradio i just debug the program and check it. is there any problem in above code snappiest? anything wrong in the passing value isDropdownSelected?
    – L.Anush
    Nov 12 at 5:55










  • do you have to pass anything after isDropdownSelected: dropdownSelected,? @L.Anush
    – Kiranramchandran
    Nov 12 at 6:05












  • @Kiranramchandran No i don`t have to pass anything after that.
    – L.Anush
    Nov 12 at 6:09






  • 1




    @L.Anush change success:success to success:function(data){},
    – Kiranramchandran
    Nov 12 at 6:28




















  • how are you checking int he backend can you share?
    – guradio
    Nov 12 at 5:51










  • @guradio i just debug the program and check it. is there any problem in above code snappiest? anything wrong in the passing value isDropdownSelected?
    – L.Anush
    Nov 12 at 5:55










  • do you have to pass anything after isDropdownSelected: dropdownSelected,? @L.Anush
    – Kiranramchandran
    Nov 12 at 6:05












  • @Kiranramchandran No i don`t have to pass anything after that.
    – L.Anush
    Nov 12 at 6:09






  • 1




    @L.Anush change success:success to success:function(data){},
    – Kiranramchandran
    Nov 12 at 6:28


















how are you checking int he backend can you share?
– guradio
Nov 12 at 5:51




how are you checking int he backend can you share?
– guradio
Nov 12 at 5:51












@guradio i just debug the program and check it. is there any problem in above code snappiest? anything wrong in the passing value isDropdownSelected?
– L.Anush
Nov 12 at 5:55




@guradio i just debug the program and check it. is there any problem in above code snappiest? anything wrong in the passing value isDropdownSelected?
– L.Anush
Nov 12 at 5:55












do you have to pass anything after isDropdownSelected: dropdownSelected,? @L.Anush
– Kiranramchandran
Nov 12 at 6:05






do you have to pass anything after isDropdownSelected: dropdownSelected,? @L.Anush
– Kiranramchandran
Nov 12 at 6:05














@Kiranramchandran No i don`t have to pass anything after that.
– L.Anush
Nov 12 at 6:09




@Kiranramchandran No i don`t have to pass anything after that.
– L.Anush
Nov 12 at 6:09




1




1




@L.Anush change success:success to success:function(data){},
– Kiranramchandran
Nov 12 at 6:28






@L.Anush change success:success to success:function(data){},
– Kiranramchandran
Nov 12 at 6:28



















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