The above code adds the record in the bottom of the Gallery. But I need to make this add the record at the first index of the Gallery as there will be more items in the Gallery.
Previously, I had set the SharePoint list as the DataSource directly to the Gallery and in that case, I achieved it using the Sort function. But since there are more records, there is a time delay when adding the item and then sorting and refreshing the DataSource (like it takes around 4secs for the records to appear after refreshing).
Also since its a New item that is getting added, I am storing it in the local collection and then I am adding it to the SharePoint list only when the Save button is clicked by the user. So can anyone please help me out here to add the new record in the top of the local collection such that Gallery displays it in the first poisition.
Firstly i would avoid using the Refresh() function this is what is taking the time and is often not required unless someone else is changing the database in another app.
You just need to add a sortbycolumns to the gallery to solve this and without the refresh it should be almost instant as long as there are not huge amounts of records in the collection. Remember, sort by columns works on more than one column.