DBGrid moving/jumping rows
lazarus / 16-Databases

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schlueter550v · 2022-03-22 06:48

Hello Forum,

i am currently struggling with a problem, wich allready has solved
forum posts.
I have a BufDataset with two integer and one boolean row. For filling
my memo field i use the OnCellClick Event, which loops through the
dataset and appends one integer field to the memo if the boolen field
is true.

If i click some checkboxes the rows kinda jump.

I allready tried the Trick with the "hacked" TDBGrid class to access
the Row and VisibleRowCount propertys.

The following suggestions i tried, but the jumping keeps. :

https://forum.lazarus.freepascal.org/index.php/topic,48009.msg345246.h
tml#msg345246
https://forum.lazarus.freepascal.org/index.php/topic,38564.msg262318.h
tml#msg262318

I have to say i dont aktually understand the logic behind that MoveBy
construct:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
x:=TMyHackDBGrid(DBGrid1).VisibleRowCount -
TMyHackDBGrid(DBGrid1).Row;//bufdatasetactionx:=
DBGrid1.DataSource.DataSet.MoveBy(x);x:=
DBGrid1.DataSource.DataSet.MoveBy(-x); 
in the attachement is a sample project.