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Disabling an option when using dhtmlxcombo

How can we disable an option when we use a dhtmlx combo box like we disable an option in a select box using html <select disable='disabled'> tag.

Hello,
try to use
combo.disable(true);

Hi,

I think that will disable the combo box... but i want to disable a particular option only...is there any solution

What do you mean by disabling?
Visual styles of option can be affected as 
   combo.getOption(value).render().style.color="gray"; 
so it will look as disabled, but there is no option to prevent its selection. 

You can add logic to onChange event of combo as

combo.attachEvent("onChange",function(value){
   if (some_check(value))
        combo.setComboValue(""); //switch to empty value
})

Hi,

Disabling an option means the way we disable it in the following manner like for example,

<select name="mySelectBox">
      <option value="1">One</option>
      <option value="2" disabled="disabled">Two</option>
      <option value="3">Three</option>
</select>

Here we can disable a particular option and we can prevent the user from selecting the option which is disabled.
In the same above manner, I want to disable an option when using the dhtmlXcombo. Is this possible using the dhtmlXcombo box!

>>Disabling an option means the way we disable it in the following manner like for example,
Such use-case not supported by dhtmlxcombo