The property doesn't exists in value type of HTMLElement

Question

In typescript i need to implement specific caretPosition of an input element.But when i try to implement it shows createTextRange type does not exists in type HTMLElement. any one have solution for this?? Thanks in advance.

following is my code

private setCaretPosition() {
    var el = document.getElementById("ticketInfo");
    if (el !== null) {
        if (el.createTextRange) {
            var range = el.createTextRange();
            range.move('character', el.value.length);
            range.select();
            return true;
        }
        else {
            if (el.selectionStart || el.selectionStart === 0) {
                el.focus();
                el.setSelectionRange(length, length);
                return true;
            }
            else { // fail city, fortunately this never happens (as far as I've tested) :)
                el.focus();
                return false;
            }
        }
    }
}

it is showing createTextRange() undefined

In `el.setSelectionRange(length, length);`, where is *length* defined or assigned a value? — RobG, Nov 12 '15 at 07:09
hi Rob , that is just a global javascript value (i.e. 10, 20 or 30 what ever) — Jaleswar Putel, Nov 12 '15 at 07:17

sinedsem · Answer 1 · 2018-04-20T11:29:16.453

15

Cast el variable to HTMLInputElement.

UPD:

const input : HTMLInputElement = <HTMLInputElement>el;

edited Apr 20 '18 at 11:29

answered Sep 04 '16 at 12:52

sinedsem

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When I try to cast I get a message saying HTMLElement is not assingable to type HTMLInputElement! How do I cast it so this works? – blueprintchris Apr 20 '18 at 09:26

score 0 · Answer 2 · answered Nov 19 '15 at 12:55

0

It's strange because I actually don't see this method createTextRange in HTMLElement API

Where did you get this method, because where is no such method in API at all, maybe you using some external libs.

answered Nov 19 '15 at 12:55

Andzej Maciusovic

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The property doesn't exists in value type of HTMLElement

2 Answers2