Network Error when using Patch Function: Conflicts exist with changes on the server, please reload.
Thanks @ronaldwalcott. I only overwrite/update the value in a column in the SharePoint list and not retrieving.
drop down menu I mean i.e combo box , drop down box. selected values from drop down are store into columns in my SharePoint list whenever a button is clicked.
i.e
SharePoint Column1 = dropdownSample1.SelectedText
SharePoint Column1 = dropdownSample2.SelectedText
The error is gone if I reload my form and throws again at 2nd time the button is clicked.