ADG itemRenderer Redraw issue

here is the long and the short of it.
I have the following system in place
Advanced Data Grid with a list of data created objects. One
of the columns has an item renderer on it, it also happens to be
the itemEditor.
I have a method on the itemRenderer component (which is
derived from a canvas) that is called at creationComplete
in this method I use the data object to determine the type of
object I am going to add to the canvas
IE if the data.@Type has a 1 then it creates an hBox and
three radio buttons and adds that to the canvas. Then it adds a
event handler for the item click at the radio button group level
and changes the public string for the result.
in turn the editorDataField is the name of the public member
of the itemRenderer / itemEditor
so here is the problem.
I have a large enough grid that the column is off the main
display area so I have to scroll to it. If i scroll over there, and
set some of the radio buttons and scroll away from it when I scroll
back the itemRenderer that has set data is in a different place. It
seems like the row and the renderer are not in sync.
it is a simlar problem when it pretains to a grouping also,
the place where the render should be is misplaced not quite sure
what the issue is.
is there a refresh that I need to do ?
also have a problem with the filter and the redraw but I
think that its linked to this initial problem.
Anyone have an idea or a place to point me in the right
direction? any help would be amazing.
Thank you all in advance.
-D
below you will find my itemRenderer code and the advanced
grid layout

"Jorlett32" <[email protected]> wrote in
message
news:ge848t$mch$[email protected]..
> here is the long and the short of it.
>
> I have the following system in place
>
> Advanced Data Grid with a list of data created objects.
One of the
> columns
> has an item renderer on it, it also happens to be the
itemEditor.
>
> I have a method on the itemRenderer component (which is
derived from a
> canvas)
> that is called at creationComplete
>
> in this method I use the data object to determine the
type of object I am
> going to add to the canvas
>
> IE if the data.@Type has a 1 then it creates an hBox and
three radio
> buttons
> and adds that to the canvas. Then it adds a event
handler for the item
> click
> at the radio button group level and changes the public
string for the
> result.
>
> in turn the editorDataField is the name of the public
member of the
> itemRenderer / itemEditor
>
> so here is the problem.
>
> I have a large enough grid that the column is off the
main display area so
> I
> have to scroll to it. If i scroll over there, and set
some of the radio
> buttons and scroll away from it when I scroll back the
itemRenderer that
> has
> set data is in a different place. It seems like the row
and the renderer
> are
> not in sync.
http://www.magnoliamultimedia.com/flex_examples/Amys_Flex_FAQ.pdf
Q2

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HWND hWnd = CreateWindowExW(WS_EX_MDICHILD, szChildClass, _T("Sample title"),
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hWndClient, nullptr, hInstGlobal, ChildWndProc);
if (hWnd != nullptr)
ShowWindow(hWnd, SW_SHOW);
else
PostQuitMessage(0);
return hWnd;
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switch (message)
case WM_CREATE:
LoadLibrary(TEXT("Msftedit.dll"));
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SETTEXTEX stEX;
stEX.flags = ST_SELECTION;
stEX.codepage = -1;
char text[250];
for(int j = 1; j < n_lines_in_edit; j++)
sprintf(text, "Sample string #%d\r\n", j);
SendMessage(hEdit, EM_SETTEXTEX, (WPARAM)&stEX, (LPARAM) text);
Edit_SetSel(hEdit, -1, 0);
Edit_ScrollCaret(hEdit);
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case WM_SETFOCUS:
SetFocus(GetWindow(hWnd, GW_CHILD));
return 0;
case WM_MOUSEACTIVATE:
BringWindowToTop(hWnd);
return MA_ACTIVATE;
case WM_DESTROY:
break;
default:
return DefMDIChildProc(hWnd, message, wParam, lParam);
return 0;
O.Z.

Hi O.Z,
I find this issue only happens on RICHEDIT50W, if you use RICHEDIT20W instead, this issue is gone.
Then I try send EN_REQUESTRESIZE notification code to notifies the rich edit control's parent window that the control's contents are larger than the control's window size.
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I find the issue is gone with RICHEDIT50W, maybe this can be a workaround for this issue, hope this helps some.
Best regards,
Shu
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if (fail) {
event.preventDefault();
DragManager.showFeedback(DM.NONE);
return;
}

Force itemRenderer Redraw

I need to force a redraw for a list itemrenderer. The code is
attached. Basically, I have a quiz question with the option in a
list, preceeded by a radio button. The data is coming from XML,
which identifies the correct option and an isSelected attribute
that stores which option the user chose. When the radio is clicked,
I do the following:
Set isSelected to 1 on the coorect XML node.
Set the style for the correct option to a changed background
and bolded text
Make the list unselectable.
Display the explanation.
Everything works EXCEPT: The item renderer for the correct
item doesn't resize. It only displays 1 line.
I've tried a number of things, including invalidateList(),
validateNow(), invalidateDisplayList() -- both before and after the
code identifying the correct option in the list.
Please help!
Thanks.

"nnmmooppqq" <[email protected]> wrote in
message
news:gohbor$93n$[email protected]..
>I need to force a redraw for a list itemrenderer. The
code is attached.
> Basically, I have a quiz question with the option in a
list, preceeded by
> a
> radio button. The data is coming from XML, which
identifies the correct
> option
> and an isSelected attribute that stores which option the
user chose. When
> the
> radio is clicked, I do the following:
>
> Set isSelected to 1 on the coorect XML node.
> Set the style for the correct option to a changed
background and bolded
> text
> Make the list unselectable.
> Display the explanation.
>
> Everything works EXCEPT: The item renderer for the
correct item doesn't
> resize. It only displays 1 line.
>
> I've tried a number of things, including
invalidateList(), validateNow(),
> invalidateDisplayList() -- both before and after the
code identifying the
> correct option in the list.
You haven't said what kind of control this is in. Some
controls will allow
you to do this with variableRowHeight set to true, but some
won't allow
resizing of renderers at runtime at all. You might want to
also try calling
invalidateSize() on your renderer.
HTH;
Amy

ADG itemRenderer Redraw issue

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