can not get control by name.

[Vincent]

i use the follow code, but it is not working

var listbox=$('#listboxname').data('kendoListBox')

2018 r3

 

[Tsvetomir]

Hi Vincent,

The Kendo UI ListBox widget might return undefined value in case it does not have matching ids in the following three places:

• The id in the select element. When using the .NET Core wrapper the id will match the string from the Name() option.
• The id where the widget is initialized (accessing it using jQuery and calling the kendoListBox() method)
• The id where you refer to an existing instance

I have created a sample Dojo project which demonstrates how to access a listBox and select the second element in its collection.

• https://dojo.telerik.com/eyIgaPad
  
  

Give the abovementioned suggestion a try and get back to us in case you need further assistance.


Kind regards,
Tsvetomir
Progress Telerik

[Vincent]

Thank you very much. My problem is :I write the code in the top of page. maybe the control not initialized.

 

[Tsvetomir]

Hi Vincent,

Accessing a widget that has not been initialized yet will result in an undefined value. I cannot give a firm confirmation whether this is a problem on your side because I do not have sufficient information on your specific set-up. 

If the issue persists, attach the files responsible for initializing and accessing the Kendo UI ListBox in an official Support Ticket and I will thoroughly investigate the case locally. 


Kind regards,
Tsvetomir
Progress Telerik