[CLOSED] Best Way to Extend a ComboBox inherited Control

[sisa]

Good Afternoon all

I wrote my first ComboBox implementation. The function is quite simple, enter a ZIP code and display the Zip Code formatted as '{ZIP} - {CITY}'.
Works fine so far. The Search looks link your Example https://examples2.ext.net/#/Form/Com...Custom_Search/.

Now my problem.

-> I want to set the Value 'ZIP' and call the Service to grab the CITY from the Database. This Function must be available from Code Behind and also from JS.

I await this things to be done after calling the Method :

• The displayed Text should look as described above.
• The Value of the ComboBox should set to a value I receive from my Service Method (basically the RecordID of the City found in the DB)

What's the best approach to solve this Problem, what do you think ?

Peter

[Daniil]

Hi Peter,

I would implement a JavaScript function like:

function setZip (zip) {
    var comboBox = this; // the setZip function belongs to a custom ComboBox class
    
    comboBox.getStore().load({
        params: {
            zip: zip // you should take it into account in a WebService to return respective data
        },
        callback: function () {
            comboBox.setValue(zip);
        }
    })
}

Then you can implement a method for a server ComboBox class to invoke the setZip method.