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RxDBGrid checkbox field issues


Hi, when the user searchs the grid and there's no result. There is an empty row with the checkbox usable. So the user selects the checkbox and gets the following error: (attached)

Please fix this in order to display nothing, or don't allow to edit that empty row.

I've tried this code without success:

--- Code: Pascal  [+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i < x.length; i++) { x[i].style.maxHeight='none'; x[i].style.height = Math.min(x[i].clientHeight+15,306)+'px'; x[i].style.resize = "vertical";}};} ---    if not sqlqyProductos1.IsEmpty then    begin      sqlqyProductos1.First;      dbgProductos.ReadOnly := False;      dbgProductos.Columns[0].ReadOnly := False;      dbgProductos.Columns[0].DirectInput := True;    end    else    begin      dbgProductos.ReadOnly := True;      dbgProductos.Columns[0].ReadOnly := True;      dbgProductos.Columns[0].DirectInput := False;    end;


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