Hi amirrezaasadpour,
You have bad usage of AjaxReRender...
Please check changed code below:
delphi code
procedure TMain_Form.IWCGPanelList1IWCGPanelListItems1Click(Sender: TObject;AParams: TStringList);
var
itab :TIWCGJQTab ;
Region : TIWCGJQRegion;
RenderAsync: Boolean;
Frm: TIWCGJQFrame;
begin
RenderAsync:= CGIsCallBackProcessing;
if RenderAsync then
CGCallBackDisableAjaxResponse;
try
iTab := MainTab.AddNewTab;
iTab.Caption := 'Test Caption' ;
iTab.CloseIcon := True ;
iTab.AjaxLoad := True ;
iTab.AjaxLoadAlways := False;
Frm:= TFr_Financ_Group.Create(Region);
Frm.Name:= CGFindUniqueComponentName(Self, 'FinancGroupFrame');
Frm.Parent:= iTab;
Frm.Align:= alClient;
finally
if RenderAsync then
begin
CGCallBackEnableAjaxResponse;
MainTab.AjaxReRender(True,False);
end;
end;
end;
Best Regards.