Just a question...

[Marc Paradis]

Hello, i love your library, i use it everyday.
I only rely on this library, but i would like to know how to add or replace option in the select.

Here's my code:

``
uint16_t imageNouvelleSelect;
imageNouvelleSelect = ESPUI.addControl( ControlType::Select, "IMAGE SELECT&#x1F467", F(""), COLOR_TURQUOISE, tabNouvellesHeadlines, &gererNouvelleImage);

#define MAX_TOP_NEWS 10
typedef struct {
char title[210];
char urlToImg[150];
} newsTopApiOrgStruct;
newsTopApiOrgStruct newsApiTopDatas[MAX_TOP_NEWS];
// newsApiTopDatas[i].title
// newsApiTopDatas[i].urlToImg

#define MAX_TOP_NEWS

void Ajouter_Images_News_Dans_Select() {

for ( int i = 0; i < MAX_TOP_NEWS; i++) {

if ( strcmp(newsApiTopDatas[i].urlToImg, "N/A") != 0)
  ESPUI.addControl( ControlType::Option, newsApiTopDatas[i].title, String(newsApiTopDatas[i].urlToImg), COLOR_WETASPHALT, imageNouvelleSelect);
yield();

}

ESPUI.updateSelect(imageNouvelleSelect, newsApiTopDatas[0].urlToImg);
ESPUI.jsonDom(0);
}
``
Thanks.
Marc.

[Marc Paradis]

Ok

[Ian Gray]

Hi, did you manage to solve your problem?

[Marc Paradis]

I didnt solve it.
No one answered.
Marc.

[Ian Gray]

You only waited a day and a half. We all have real jobs you know ;)

I don't happen to have a ready-made example of dynamic options, but I think it should work fine.

Help us to help you, what is wrong with your code? As far as I can see your code should work, my only concern would be with the strings/structs used as titles. If they are declared in a function then the ESPUI structures may take references from the stack which become invalid when the function returns. Are they global scope?

[Marc Paradis]

Yes they are globals.

[Ian Gray]

So you haven't said what happens, or doesn't.

[Marc Paradis]

The problem is that i cannot add options qfter the UI started.

[Ian Gray]

But your code doesn't appear to /try/ to add options after the UI has started?

[Marc Paradis]

The problem yes... see addControl and the for loop

[Marc Paradis]

One options added i cannot add more then..

[Ian Gray]

Hang on I'm confused. You say that newsApiTopDatas is defined at global scope, but you show it interleaved with code, so it can't be. Can you include a minimal working example?

[Thomas]

The problem is that i cannot add options after the UI started.

That is possible, but I recall that you'll need to refresh the browser to see the newly loaded options. I think your "ESPUI.jsonDom(0);" might have been an attempt to do just that. Try a browser refresh instead.

• Thomas

[Ian Gray]

So ESPUI.jsonReload() will trigger a refresh and reload of the entire UI. ESPUI.jsonDom(0) will resend the UI but keep whatever is already in the browser, potentially resulting in duplicate controls.