CODEWITHSUNDEEP
javascriptjqueryknockout.js
Leonardo Wildt
Leonardo Wildt

Reputation: 2599

Bind input values in textbox using knockout to send to server.

Using knockout i would like to accept submitted values and send them to server using ko.toJson. I am new to knockout and am sure i having some syntactic issues. More concisely i want my submit button to save the values in my textbox and save them to server. here is my fiddle https://jsfiddle.net/Domt301/30h3oe9t/

<div class='Agent Form'>   
<p>First name: <input data-bind='value: firstName' /></p> 
<p>Last name: <input data-bind='value: lastName' /></p> 
<p>Agent NPN: <input data-bind='value: NPN' /></p>
<p>Lead Location: <input data-bind='value: leadlocation' />(City, State, Zip)</p>
<p>Requested Lead Delivery Time/Date: </p>
    <p><input data-bind='value: leaddeliverytime' /></p>
<p>Leads Requested: <select>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
    <option value="5">5</option>
    <option value="10">10</option>
    </select> </p>
<p>Email Address: <input data-bind='value: EmailAddress' /></p>
</div>
<div>
        <input type="button" id="btnSubmit" 
          value="Submit" data-bind = "click: submit" />
         <input type="button" id="btnReset" 
           value="Reset" data-bind = "click: reset" />
    </div>

script 

 var ViewModel = function(first, last, NPN, leadlocation, leaddeliverytime, EmailAddress) {
this.firstName = ko.observable(first);
this.lastName = ko.observable(last);
this.NPN = ko.observable(NPN);
this.leadlocation = ko.observable(leadlocation);
this.leaddeliverytime = ko.observable(leaddeliverytime);
this.EmailAddress = ko.observable(EmailAddress);

};
var jsonData = ko.toJson(viewModel);

Upvotes: 1

Views: 1542

Answers (1)

Jonathan Kittell
Jonathan Kittell

Reputation: 7493

I have updated the original fiddle.

You can bind the submit and reset buttons to functions inside of your view model. Then create a submit function inside of your data model where you create a data object, in this context I define it as Agent and pass that to an ajax call where you would replace /echo/json with the path to the controller where you are posting the data.

I made a few slight changes to your html to keep track of the observables.

<div class='Agent Form'>   
<p>First name: <input data-bind='value: firstName' /></p> 
<p>Last name: <input data-bind='value: lastName' /></p> 
<p>Agent NPN: <input data-bind='value: npn' /></p>
<p>Lead Location: <input data-bind='value: leadLocation' />(City, State, Zip)</p>
<p>Requested Lead Delivery Time/Date: <input data-bind='value: leadDeliveryTime' /></p>
<p>Leads Requested: 
    <select>
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
      <option value="4">4</option>
      <option value="5">5</option>
      <option value="10">10</option>
    </select> </p>
<p>Email Address: <input data-bind='value: emailAddress' /></p>
</div>
<div>
    <button data-bind = "click: submit" >Submit</button>
    <button data-bind = "click: reset" >Reset</button>
</div>

Here is the knockout code: 

debugger;

var viewModel = function() {
    var self = this;
    self.firstName = ko.observable();
    self.lastName = ko.observable();
    self.npn = ko.observable();
    self.leadLocation = ko.observable();
    self.leadDeliveryTime = ko.observable();
    self.leadsRequested = ko.observable();
    self.emailAddress = ko.observable();
    self.fullName = ko.computed(function() {
        return self.firstName() + " " + self.lastName();
    });

    self.submit = function () {     
        var Agent = {};
        Agent.FirstName = self.firstName();
        Agent.LastName = self.lastName();
        Agent.Npn = self.npn();
        Agent.LeadLocation = self.leadLocation();
        Agent.LeadDeliveryTime = self.leadDeliveryTime();
        Agent.LeadsRequested = self.leadsRequested();
        Agent.EmailAddress = self.emailAddress();
        Agent.FullName = self.fullName();

        $.ajax({
            url: '/echo/json/',
            type: 'POST',
            data: Agent,
            success: function (result) {                
            alert("Recorded inserted Sucessfully");
            self.firstName("");
            self.lastName("");
            self.npn("");
            self.leadLocation("");
            self.leadDeliveryTime("");
            self.leadsRequested("");
            self.emailAddress("");
        },
        error: function (XMLHttpRequest, textStatus, errorThrown) {
            debugger;
            alert("some error");
        }
    });
};

     self.reset = function() {
         self.firstName("");
         self.lastName("");
         self.npn("");
         self.leadLocation("");
         self.leadDeliveryTime("");
         self.leadsRequested("");
         self.emailAddress("");
         alert("Reset");
    };
};



ko.applyBindings(new viewModel());

Upvotes: 1

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