TextEdit maximum text length
Does anyone know how to make text in TextEdit element constrained to specified number of characters?
I am using following approach:
- onTextChanged: {
- if (!readOnly && text.length > 10)
- {
- var cpos = cursorPosition
- text = text.slice(0, 10 - text.length)
- if (cpos >= text.length)
- cursorPosition = text.length
- else
- cursorPosition = cpos
- }
- if (paintedHeight > height)
- {
- parent.height = paintedHeight+6
- }
- }
It works, but on my C7 automatic removing of a last char(after exceeding 10 chars) is not immediate.
Also when writing in the middle of text sometimes input is set to upper-case letters instead of lower-case.
5 replies
Why not subclass QValidator, and check the length of the input string there? Simply re-implement validate() and fixup. validate() would just return Acceptable for strings shorter or equal than the required length, and Invalid for longer strings. fixup() would simply truncate the input text.
You must log in to post a reply. Not a member yet? Register here!