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Is it possible to change the enabled / disabled status of a dropdownlist through a button?

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143482 Mar 21,2019 06:42 PM UTC Mar 22,2019 05:54 AM UTC ASP.NET MVC - EJ 2 1
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Tags: DropDownList
Juan Antonio
Asked On March 21, 2019 06:42 PM UTC

Hello, I am working with a dropdownlist with the property enabled in false and I wanted to know if it can be changed to true through a button
Here is my code:

@(Html.EJS().DropDownList("GenreId")
                                                    .DataSource(dataManager => dataManager.Url(Url.Action("Genre", "Ext", null, Request.Url.Scheme))
                                                        .Adaptor("UrlAdaptor").CrossDomain(true))
                                                    .Fields(new Syncfusion.EJ2.DropDowns.DropDownListFieldSettings
                                                    {
                                                        Text = "Name",
                                                        Value = "GenreId"
                                                    })
                                                    .PopupHeight("200px")
                                                    .Width("200px")
                                                    .Value(Model.GenreId).Enabled(false)
                                                    .Render()
                                        )
<button class="btn btn-success" id="btnChange">Change</button>
<script type="text/javascript">
     $("#btnChange").click(function(){
          var x = document.getElementById("GenreId").ej2_instances[0];
          x.element.disabled = false;
        x.element.readOnly = false;
        x.properties.enabled = true;
});
</script>
I do not know if this is the right way to do it. I hope you can help me.
Thanks in advance


Prince Oliver [Syncfusion]
Replied On March 22, 2019 05:54 AM UTC

Hello Juan, 

Thank you for contacting Syncfusion support. 

Yes, it is possible to change the enabled / disabled status of a DropDownList through a button. All you need to do is use the enabled property in the control and set it as true to enable and false to disable it. You can call the dataBind method to reflect the changes immediately in the control. Please refer the below code. 

$("#btnChange").click(function () { 
  var x = document.getElementById("GenreId").ej2_instances[0]; 
  if (x.enabled) { 
    x.enabled = false; // To disable 
    x.dataBind(); //To affect the changes immediately 
  } else { 
    x.enabled = true; // To enable 
    x.dataBind(); //To affect the changes immediately 
  } 
}); 

Let us know if you have any further queries. 

Thanks, 
Prince 


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