Linux alternative to LockWindowUpdate?

[HatForCat]

Is there such a thing?

I have a small form that I ShowModal over the main form and the top form has multiple dbgrids of most of the same datasets as the main form. When I scroll the smaller upper form, stuff is scrolling below on the main form. I'd like to stop that from visually happening.

For good or bad reasons, in Delphi I used LockWindowUpdate(MainForm) for that. Is there a similar thing for Lazarus/Linux?

Thanks

[taazz]

as far as I know it doesn't exists. how about disablecontrols of the dataset?

[Thaddy]

Or DbGrid.BeginUpdate/EndUpdate. That what it is for.
Too many grids? use this with as parent the form you want to stop updating the grids:

Code: Pascal  [Select][+][-]

1. procedure UpdateDbGrids(const parent:Tcomponent;StartUpdate:Boolean = true);
2. var i:integer;
3. begin
4.   for i := 0 to parent.ComponentCount -1 do
5.     if parent.Components[i] is TDbGrid then
6.       if StartUpdate = true then
7.         (parent.Components[i] as TDbGrid).BeginUpdate
8.       else
9.         (parent.Components[i] as TDbGrid).EndUpdate;
10. end;  

[HatForCat]

how about disablecontrols of the dataset?

Thanks, but I had thought of that but then the data is locked also in the subform as DisableControls is global.

I'd need a From-only-scope version for that to work. Is there such a thing?

[HatForCat]

Or DbGrid.BeginUpdate/EndUpdate.

Thanks, but and isn't there all too often a "but," it presents another visual issue, probably a Laz-bug. In the sub-form, if I do an Insert or Edit  to a database, Lazarus clears the top line of the grid in the underlying main form. After a Post/Cancel it does not replace that blank line until I return to the main form.

It is better, but not perfect.