List View - ItemLostFocusAccept Event
Fired when an item in the list is about to lose focus
Member of List View (PRIM_LTVW)
Parameters
Name | Type | Data Type | Description |
|---|---|---|---|
Accept | *Both | Boolean | Set to false to prevent the event from proceeding |
Reason | *Input | Enumeration | Action that triggered the event |
Details
The ItemLostFocusAccept event is triggered immediately before the ItemLostFocus event.
It is not a replacement for the ItemLostFocus event, instead providing an opportunity for focus processing to be interrupted.
Set the Accept parameter to False to prevent focus changing.
Example
In this example, focus can be set if the check box is checked.
Function Options(*DIRECT)
Begin_Com Role(*EXTENDS #PRIM_FORM) Height(469) Left(228) Top(220) Width(686) Clientwidth(670) Clientheight(430)
Define_Com Class(#PRIM_LTVW) Name(#ListView) Columnbuttonheight(19) Componentversion(2) Displayposition(1) Fullrowselect(True) Keyboardpositioning(SortColumn) Left(8) Parent(#COM_OWNER) Showsortarrow(True) Tabposition(1) Top(8) Height(377) Width(657)
Define_Com Class(#PRIM_LVCL) Name(#LVCL1) Displayposition(1) Parent(#ListView) Source(#EMPNO) Width(33)
Define_Com Class(#PRIM_LVCL) Name(#LVCL2) Displayposition(2) Parent(#ListView) Source(#SURNAME) Width(36)
Define_Com Class(#PRIM_LVCL) Name(#LVCL3) Displayposition(3) Parent(#ListView) Source(#GIVENAME) Width(25)
Define_Com Class(#PRIM_CKBX) Name(#AllowFocusChange) Caption('Allow Focus Change?') Displayposition(2) Left(8) Marginleft(2) Parent(#COM_OWNER) Tabposition(2) Top(391) Width(161) Buttonstate(Checked)
Evtroutine Handling(#Com_owner.CreateInstance)
Select Fields(#ListView) From_File(pslmst)
Add_Entry To_List(#ListView)
Endselect
Endroutine
Evtroutine Handling(#ListView.ItemLostFocusAccept) Accept(#Accept)
#Accept := (#AllowFocusChange.buttonState = Checked)
Endroutine
Evtroutine Handling(#ListView.ItemLostFocus)
#Com_owner.Caption += (#Empno + " ")
Endroutine
End_Com