insert
Description:
Insert the child
into the this at position
.
If a sort function is set, the widget will actually be inserted at the calculated position and this function has the same effect of add.
If position
is -1, or larger than the total number of items in the this, then the child
will be appended to the end.
Parameters:
this |
a ListBox |
child |
the Widget to add |
position |
the position to insert |