asp.net mvc 4 - How to pass data from Razor View Kendo UI DropDownList to Controller Variable? -

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vs'12 , kendoui, asp.net c# mvc4 internet application ef code first

would see how 1 pass values form kendoui dropdownlist mvc controller razor view

controller

  [httppost]   //[acceptverbs(httpverbs.post)]     public actionresult index(viewmodelcctrst model) //, formcollection  values)     {          if (modelstate.isvalid)         {              string clt = model.clients;             string cnt = model.countys;             string twn = model.townships;             ...              ...             //string xx = values["clients"];             //       xx = values["countys"];             //       xx = values["townships"];                      ...                       ...

*clt,cnt,twn , other variables null... wherein lies question why these null**

razor view:

                @ @(html.kendo().dropdownlistfor(m=>m.ranges)                       //.name("ranges")                       .htmlattributes(new { style = "width:300px"}) //, id = "ranges"})                       .optionlabel("select range...")                       .datatextfield("rangename")                       .datavaluefield("rangeid")                       .datasource(source => {                           source.read(read =>                           {                               read.action("getcascaderanges", "addccctrst")                                   .data("filterranges");                           })                           .serverfiltering(true);                       })                       .enable(false)                       .autobind(false)                       .cascadefrom("townships")                 )                 <script>                     function filterranges() {                         return {                             townships: $("#townships").val()                         };                     }

things have tried

  • setting var text = dropdownlist.text();
  • setting var ddltracts = $("#tracts").data("kendodropdownlist");

no matter try id wise or controller wise cannot values "read" in controller, nor can grab , pass values on in action links.

please help!!

updated code per comments mmillican below 

                string sct = model.sections;                 string trt = model.tracts;

viewmodel 

public class viewmodelcctrst {     public string clients { get; set; }     public ienumerable<dbclient> availableclients { get; set; }     public string countys { get; set; }     public ienumerable<dbcounty> availablecounties { get; set; }     public string townships { get; set; }     public ienumerable<dbtownship> availabletownship { get; set; }     public string ranges { get; set; }     public ienumerable<dbrange> availableranges { get; set; }     public string sections { get; set; }     public ienumerable<dbsection> availablesection { get; set; }     public string tracts { get; set; }     public ienumerable<dbtract> availabletracts { get; set; } }

what have done far is:

  • removed [acceptverbs(httpverbs.post)] , formcollection values controller
  • removed //.name("tracts") , optional .htmlattributes(new { id = "tracts"}) each dropdownlist
  • added dropdownlistfor(m=>m.tracts) each ddl , imported @model og.modelview.viewmodelcctrst customviewmodel can read below
  • renamed lowercase .cascadefrom("clients") (not clients) uppercase .cascadefrom("clients")

the tag below says alert("select tract upload:\n....); did alert 1 time during these changes, model , variable attempting send actionlink form razor view still both null , alert stopped popping up.

    $(document).ready(function () {         $("#get").click(function () {             var clients = $("#clients").data("kendodropdownlist"),             countys = $("#countys").data("kendodropdownlist"),             township = $("#township").data("kendodropdownlist"),             ranges = $("#ranges").data("kendodropdownlist"),             sections = $("#sections").data("kendodropdownlist"),             tracts = $("#tracts").data("kendodropdownlist");        var clientsinfo = "\nclients: { id: " + clients.value() + ", name: " + clients.text() + " }",       countysinfo = "\ncountys: { id: " + countys.value() + ", name: " + countys.text() + " }",        ....         ....        alert("select tract upload:\n" + clientsinfo + countysinfo + townshipsinfo + rangesinfo + sectionsinfo + tractsinfo);            });     });

update

fixed syntax issue fixed scipt error. populating clientsinfo + countysinfo + townshipsinfo + rangesinfo + sectionsinfo + tractsinfo - me controller?

asdf

you should use viewmodel has properties in such as:

updated

public class myviewmodel {     public string clients { get; set; }     public ienumerable<client> availableclients { get; set; }     public string countys { get; set; }     public ienumerable<client> availablecounties { get; set; }     public string townships { get; set; }     public ienumerable<client> availabletownships { get; set; }     public string sections { get; set; }     public ienumerable<client> availablesection { get; set; }     public string tracts { get; set; }     public ienumerable<tract> availabletracts { get; set; } }

then kendo dropdownlist become dropdownlistfor<> shown here:

@(html.kendo().dropdownlistfor(m => m.clients)                   .htmlattributes(new { style = "width:300px"}) //, id = "clients"})                   .optionlabel("select client...")                   .datatextfield("clientname")                   .datavaluefield("clientid")                   .datasource(source => {                        source.read(read => {                            read.action("getcascadeclients", "imageupload");                        });                   })                  ***1***             )

and can post controller in following way:

[httppost]     public actionresult index(myviewmodel model)     {          if (modelstate.isvalid)         {              var newvar = model.clients;

when return viewmodel view (from controller) , myviewmodel.clients has value "client1", dropdownlist pick , have selected value.

hopefully you're looking / makes sense.


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