How can I get the selected item in dropdownlistbox












0















I would like u to help me to find the selected it in dropdownlistbox selected item



when I build the site

there are two methods of create




  1. Get - before the page post back

  2. Post - after I pressed the submit button


I have two listboxes



Yatzran which I have all the options available



and degem



after I choose Yatzran



I can connect to db.carlist2



to get all degem of a particular yatzran



and then I can filter degem accordingly the yatzran selectedlist item



BUT I want to get it before Before I press the submit button



I try the request.form
and also the hidden field
and it didn't work.



this is the code I have of yatzran



var Yatzran = db.CarList2.Select(u => u.Yatzran);
ViewBag.Yatzran = new SelectList(Yatzran.Distinct());


this is working and I get all Yatzran list



I try to get the degem accordingly to yatzran selecteditem



var DegemID = ViewBag.Degem.Single(s => s.Yatzran == 
ViewBag.Yatzran.selectedvalue).ID;


This line do not work



Please help me :)










share|improve this question

























  • What is the type of Yatzran.selectedvalue? It looks like you may be comparing two different types in the linq expression s.Yatzran == ViewBag.Yatzran.selectedvalue.

    – ryancdotnet
    Nov 14 '18 at 16:55











  • Is this in the view?

    – JamesS
    Nov 14 '18 at 16:58











  • Looks like you are trying to implement cascading dropdown. Refer this How to create cascading drop-down list

    – Shyju
    Nov 14 '18 at 18:11











  • Refer this DotNetFiddle for a working example of cascading dropdownlists

    – user3559349
    Nov 14 '18 at 20:40











  • I try to do something like this

    – Avi Mos
    Nov 17 '18 at 19:13
















0















I would like u to help me to find the selected it in dropdownlistbox selected item



when I build the site

there are two methods of create




  1. Get - before the page post back

  2. Post - after I pressed the submit button


I have two listboxes



Yatzran which I have all the options available



and degem



after I choose Yatzran



I can connect to db.carlist2



to get all degem of a particular yatzran



and then I can filter degem accordingly the yatzran selectedlist item



BUT I want to get it before Before I press the submit button



I try the request.form
and also the hidden field
and it didn't work.



this is the code I have of yatzran



var Yatzran = db.CarList2.Select(u => u.Yatzran);
ViewBag.Yatzran = new SelectList(Yatzran.Distinct());


this is working and I get all Yatzran list



I try to get the degem accordingly to yatzran selecteditem



var DegemID = ViewBag.Degem.Single(s => s.Yatzran == 
ViewBag.Yatzran.selectedvalue).ID;


This line do not work



Please help me :)










share|improve this question

























  • What is the type of Yatzran.selectedvalue? It looks like you may be comparing two different types in the linq expression s.Yatzran == ViewBag.Yatzran.selectedvalue.

    – ryancdotnet
    Nov 14 '18 at 16:55











  • Is this in the view?

    – JamesS
    Nov 14 '18 at 16:58











  • Looks like you are trying to implement cascading dropdown. Refer this How to create cascading drop-down list

    – Shyju
    Nov 14 '18 at 18:11











  • Refer this DotNetFiddle for a working example of cascading dropdownlists

    – user3559349
    Nov 14 '18 at 20:40











  • I try to do something like this

    – Avi Mos
    Nov 17 '18 at 19:13














0












0








0








I would like u to help me to find the selected it in dropdownlistbox selected item



when I build the site

there are two methods of create




  1. Get - before the page post back

  2. Post - after I pressed the submit button


I have two listboxes



Yatzran which I have all the options available



and degem



after I choose Yatzran



I can connect to db.carlist2



to get all degem of a particular yatzran



and then I can filter degem accordingly the yatzran selectedlist item



BUT I want to get it before Before I press the submit button



I try the request.form
and also the hidden field
and it didn't work.



this is the code I have of yatzran



var Yatzran = db.CarList2.Select(u => u.Yatzran);
ViewBag.Yatzran = new SelectList(Yatzran.Distinct());


this is working and I get all Yatzran list



I try to get the degem accordingly to yatzran selecteditem



var DegemID = ViewBag.Degem.Single(s => s.Yatzran == 
ViewBag.Yatzran.selectedvalue).ID;


This line do not work



Please help me :)










share|improve this question
















I would like u to help me to find the selected it in dropdownlistbox selected item



when I build the site

there are two methods of create




  1. Get - before the page post back

  2. Post - after I pressed the submit button


I have two listboxes



Yatzran which I have all the options available



and degem



after I choose Yatzran



I can connect to db.carlist2



to get all degem of a particular yatzran



and then I can filter degem accordingly the yatzran selectedlist item



BUT I want to get it before Before I press the submit button



I try the request.form
and also the hidden field
and it didn't work.



this is the code I have of yatzran



var Yatzran = db.CarList2.Select(u => u.Yatzran);
ViewBag.Yatzran = new SelectList(Yatzran.Distinct());


this is working and I get all Yatzran list



I try to get the degem accordingly to yatzran selecteditem



var DegemID = ViewBag.Degem.Single(s => s.Yatzran == 
ViewBag.Yatzran.selectedvalue).ID;


This line do not work



Please help me :)







asp.net-mvc asp.net-mvc-4






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 14 '18 at 20:38







user3559349

















asked Nov 14 '18 at 16:39









Avi MosAvi Mos

1




1













  • What is the type of Yatzran.selectedvalue? It looks like you may be comparing two different types in the linq expression s.Yatzran == ViewBag.Yatzran.selectedvalue.

    – ryancdotnet
    Nov 14 '18 at 16:55











  • Is this in the view?

    – JamesS
    Nov 14 '18 at 16:58











  • Looks like you are trying to implement cascading dropdown. Refer this How to create cascading drop-down list

    – Shyju
    Nov 14 '18 at 18:11











  • Refer this DotNetFiddle for a working example of cascading dropdownlists

    – user3559349
    Nov 14 '18 at 20:40











  • I try to do something like this

    – Avi Mos
    Nov 17 '18 at 19:13



















  • What is the type of Yatzran.selectedvalue? It looks like you may be comparing two different types in the linq expression s.Yatzran == ViewBag.Yatzran.selectedvalue.

    – ryancdotnet
    Nov 14 '18 at 16:55











  • Is this in the view?

    – JamesS
    Nov 14 '18 at 16:58











  • Looks like you are trying to implement cascading dropdown. Refer this How to create cascading drop-down list

    – Shyju
    Nov 14 '18 at 18:11











  • Refer this DotNetFiddle for a working example of cascading dropdownlists

    – user3559349
    Nov 14 '18 at 20:40











  • I try to do something like this

    – Avi Mos
    Nov 17 '18 at 19:13

















What is the type of Yatzran.selectedvalue? It looks like you may be comparing two different types in the linq expression s.Yatzran == ViewBag.Yatzran.selectedvalue.

– ryancdotnet
Nov 14 '18 at 16:55





What is the type of Yatzran.selectedvalue? It looks like you may be comparing two different types in the linq expression s.Yatzran == ViewBag.Yatzran.selectedvalue.

– ryancdotnet
Nov 14 '18 at 16:55













Is this in the view?

– JamesS
Nov 14 '18 at 16:58





Is this in the view?

– JamesS
Nov 14 '18 at 16:58













Looks like you are trying to implement cascading dropdown. Refer this How to create cascading drop-down list

– Shyju
Nov 14 '18 at 18:11





Looks like you are trying to implement cascading dropdown. Refer this How to create cascading drop-down list

– Shyju
Nov 14 '18 at 18:11













Refer this DotNetFiddle for a working example of cascading dropdownlists

– user3559349
Nov 14 '18 at 20:40





Refer this DotNetFiddle for a working example of cascading dropdownlists

– user3559349
Nov 14 '18 at 20:40













I try to do something like this

– Avi Mos
Nov 17 '18 at 19:13





I try to do something like this

– Avi Mos
Nov 17 '18 at 19:13












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