OnColumnMoved result unexpected
lazarus / 16-Databases

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fmc · 2019-11-14 05:04

In testing the integer values of a column moved (FromIndex / ToIndex),
I was surprised to see the ever-hidden ID column started at Index 1
instead of Index 0.  The Table for the Grid (I tested this on both the
TDBGrid and the TRxDBGrid) is like this:

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 'CREATE
TABLE IF NOT EXISTS customers(' +    'cust_id INTEGER PRIMARY KEY
AUTOINCREMENT, ' +    'cust_fname VARCHAR(20), ' +    'cust_lname
VARCHAR(20), ' +    'cust_company VARCHAR(30), ' + ...
When I moved the fname column @index 1 one slot to the right, I
thought it'd be in index 2 position.  But, it wasn't.  It was @index 3

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 procedure
TForm_Main.DBGrid_AddCustomersColumnMoved(Sender: TObject; FromIndex, 
ToIndex: Integer);var  x,y : Integer;begin  x := FromIndex;  y :=
ToIndex;  ShowMessage('Column moved from ' + IntToStr(x) + ' to ' +
IntToStr(y));end;
The result is shown in the pic below.  I just thought it was
interesting how these two Grids' Column Titles start @index 1 instead
of index 0.  On face value, it affects nothing I can see.  Or am I
missing something here?