TUniDBGrid: How do I save column visibility in a cookie

[cdev]

Hi

I can save the column widths of a grid in a cookie.  Next time the user loads the application he gets his grid with the same column widths as he left the application.  I save the column width information in the OnColumnResize event handler of the grid and I load the column width information in the OnAfterLoad event handler of the grid.

Now, I want to do the same for the columns that are marked invisible or visible in runtime.  But I don't know in what event handler I can catch this.

Anyone has a clue how I could achieve this ?

[Sherzod]

40 minutes ago, cdev said:

Now, I want to do the same for the columns that are marked invisible or visible in runtime.  But I don't know in what event handler I can catch this.

Hi,

http://forums.unigui.com/index.php?/topic/8070-event-for-hiding-column-in-dbgrid/&do=findComment&comment=41281

[cdev]

OK, I can catch these events in the ClientEvents columnhide and columnshow.    But now I have a new question: I have a global boolean in my unit bColumn0Visible.  How can I set that boolean to True or False from within these ClientEvents ?

[Sherzod]

Do you want to read this value from the clientside? 

[cdev]

Yes, I want to store the column visibity of each column in cookies.  When next time the user gets back to the grid, he gets his grid with the same visible columns as the previous time.

[Sherzod]

8 hours ago, Sherzod said:

Do you want to read this value from the clientside? 

You can assign your value to a new property ...

procedure TMainForm.UniFormCreate(Sender: TObject);
begin
  UniDBGrid1.JSInterface.JSAssign('needToSave', [True]);
end;

 

[cdev]

But how do I catch the event that a particular column has been marked visible/hidden ?