the position(index as number or path as string or array) of the item to update
item
the updated item
Description:
This function updates an item at the given position. The item can be a string/number, RImage or RComboBox(for views with one column) or an array for views containing more than one column. Notice that when update an item, you must provide all the columns for multi-columns views. In addition, you should avoid the use of this function for tree/list views that have the Sorted property set to true.
Return value:
This function returns -1 if the position is invalid, or the position otherwise.
Example
// for views with one column, update the fifth item
TreeList.UpdateItem(5, "column");
// for views with two columns, update the fifth item
TreeList.UpdateItem(5,["column one","column two"]);
// also, if you added a column as IMAGE_COLUMN
myImage=new RImage(null);
myImage.Filename="picture.jpg";
TreeList.UpdateItem(5,myImage);