How to disable writing in combo box

**Suzane** · 20-04-2009

Can any one suggest me how to disable writing in combo box provided to the end user, I don't want to allow the user to write anything in the combo box, this box will only be allow them to use only for selecting the items displayed over there.

How to do this please me..

thanks for your help.

**Khushal** · 20-04-2009

combo's onDisable is achieve thorough following code:

Code:

// private
    onDisable: function(){
        Ext.form.ComboBox.superclass.onDisable.apply(this, arguments);
        if(this.hiddenField){
            this.hiddenField.disabled = true;
        }
    },

TriggerField:

Code:

 // private
    onDisable : function(){
        Ext.form.TriggerField.superclass.onDisable.call(this);
        if(this.wrap){
            this.wrap.addClass(this.disabledClass);
            this.el.removeClass(this.disabledClass);
        }
    },

**Ackley** · 20-04-2009

I am experiencing that his does happen via ComboBox's onDisable function:

Code:

onDisable: function(){
        Ext.form.ComboBox.superclass.onDisable.apply(this, arguments);
        if(this.hiddenField){
            this.hiddenField.disabled = this.disabled;
        }