+- Atozed Forums (https://www.atozed.com/forums)
+-- Forum: Atozed Software (https://www.atozed.com/forums/forum-1.html)
+--- Forum: IntraWeb (https://www.atozed.com/forums/forum-3.html)
+---- Forum: English (https://www.atozed.com/forums/forum-16.html)
+----- Forum: IntraWeb General Discussion (https://www.atozed.com/forums/forum-4.html)
+----- Thread: Force update of an TIWTabControl from Asynch event (/thread-3053.html)
Force update of an TIWTabControl from Asynch event - Lenfors - 02-28-2023
Hello!
From an Asynch event I want to update the Title of a TIWTabControPage belonging to a TIWTabControl.
When changing the Title the screen is not updated!?
How can I force the TIWTabControl to Refresh?
It works if I do a Self.AsyncReload(False) but is this the best way to do it?
Best regards, Mikael
unit Unit1;
Interface
uses
Classes, SysUtils, IWAppForm, IWApplication, IWColor, IWTypes, Vcl.Graphics,
IWVCLBaseControl, IWBaseControl, IWBaseHTMLControl, IWControl, IWCompExtCtrls,
IWDrawButtonUnit, IWCompTabControl, Vcl.Controls, Vcl.Forms,
IWVCLBaseContainer, IWContainer, IWHTMLContainer, IWHTML40Container, IWRegion,
IWCompButton;
type
TIWForm1 = class(TIWAppForm)
IWTabControl1: TIWTabControl;
IWTabControl1Page0: TIWTabPage;
IWTabControl1Page1: TIWTabPage;
IWTabControl1Page2: TIWTabPage;
IWButton1: TIWButton;
procedure IWButton1AsyncClick(Sender: TObject; EventParams: TStringList);
public
end;
implementation
{$R *.dfm}
procedure TIWForm1.IWButton1AsyncClick(Sender: TObject; EventParams: TStringList);
begin
IWTabControl1Page0.Title := formatDateTime('hh:nn
s', Now);// Self.AsyncReload(False); // Works
end;
initialization
TIWForm1.SetAsMainForm;
end.
object IWForm1: TIWForm1
Left = 0
Top = 0
Width = 1130
Height = 914
RenderInvisibleControls = True
AllowPageAccess = True
ConnectionMode = cmAny
Background.Fixed = False
HandleTabs = False
LeftToRight = True
LockUntilLoaded = True
LockOnSubmit = True
ShowHint = True
DesignLeft = 4
DesignTop = 4
object IWTabControl1: TIWTabControl
Left = 0
Top = 0
Width = 1130
Height = 914
RenderInvisibleControls = True
ActiveTabFont.Color = clWebWHITE
ActiveTabFont.FontFamily = 'Arial, Sans-Serif, Verdana'
ActiveTabFont.Size = 10
ActiveTabFont.Style = [fsBold]
ActiveTabFont.PxSize = 13
InactiveTabFont.Color = clWebBLACK
InactiveTabFont.FontFamily = 'Arial, Sans-Serif, Verdana'
InactiveTabFont.Size = 10
InactiveTabFont.Style = []
InactiveTabFont.PxSize = 13
ActiveTabColor = clWebDARKGRAY
InactiveTabColor = clWebLIGHTGRAY
ActivePage = 0
Align = alClient
BorderOptions.NumericWidth = 0
BorderOptions.Style = cbsNone
Color = clWebSILVER
ClipRegion = False
TabPadding = 0
ActiveTabBorder.Color = clWebBLACK
ActiveTabBorder.Width = 0
InactiveTabBorder.Color = clWebBLACK
InactiveTabBorder.Width = 0
ExplicitLeft = 88
ExplicitTop = 80
ExplicitWidth = 60
ExplicitHeight = 60
DesignSize = (
1130
914)
object IWTabControl1Page1: TIWTabPage
Left = 0
Top = 20
Width = 1130
Height = 894
RenderInvisibleControls = True
TabOrder = 1
Title = 'Page1'
BorderOptions.NumericWidth = 0
BorderOptions.Style = cbsNone
Color = clWebWHITE
end
object IWTabControl1Page2: TIWTabPage
Left = 0
Top = 20
Width = 1130
Height = 894
RenderInvisibleControls = True
TabOrder = 2
Title = 'Page2'
BorderOptions.NumericWidth = 0
BorderOptions.Style = cbsNone
Color = clWebWHITE
end
object IWTabControl1Page0: TIWTabPage
Left = 0
Top = 20
Width = 1130
Height = 894
RenderInvisibleControls = True
Title = 'Page0'
BorderOptions.NumericWidth = 0
BorderOptions.Style = cbsNone
Color = clWebWHITE
object IWButton1: TIWButton
Left = 184
Top = 184
Width = 120
Height = 30
Caption = 'IWButton1'
Color = clBtnFace
FriendlyName = 'IWButton1'
OnAsyncClick = IWButton1AsyncClick
end
end
end
end
RE: Force update of an TIWTabControl from Asynch event - Alexandre Machado - 03-22-2023
AsyncReload() is a way to force the component to render again in the HTML page. If it works in this case, I think it is safe to use it.
PS: I strongly suggest you to experiment with the new IWjQPageControl which is awesome in so many ways.