There is a form have two display methods. So form load is so slowly. I searched and found this way;
public void init()
{
super();
MyTable_DS.cacheAddMethod(tableMethodStr(MyTable, dispCreditBalance));
}
but my display methods not in table methods node. My methods under form -> datasources -> table -> method node. So tableMethodStr can't see my methods.
How can use this cacheAddMethod in this situation?
Caching of form display methods is not supported. You may try to enable the "CacheDateMethod" attribute of the form field, but I expect it will not work.
If possible (not dependant on form variables) move the display method to the table and remove from the form.
A workaround will be to use a map to store the result and only recompute when needed not found in map. You can see an example in the Pastebin in this answer.