How to convert a Sencha ExtJS textfield to uppercase on the textfield blur event
By Alvin Alexander. Last updated: September 20 2016
This brief Sencha tutorial shows how to convert the text in a Sencha ExtJS textfield to uppercase on the textfield blur event. I use this technique on the symbol field in a form where I let users enter stock symbols, such as “AAPL”, “GOOG”, etc.
First, the symbol field in my StockForm.js view component is defined like this:
