一個子網頁(被 include 的子網頁)，它裡面的 Panel ，要被參照，例如 visible
應該這樣用：
global $page;
$page->control->Visible = false;
$page->panel->Visible = false;
不可以這樣：
global $panel;
$panel->Visible = true;
這個問題，我經常弄錯，紀錄在這裡，提醒自己。
但是，如果是子網頁page -> 子網頁subpage -> Panel
就不能再這樣用了！
function subpage_BeforeShow(& $sender)
global $subpage;
$subpage->control->Visible = false;
$subpage->panel->Visible = false;
比較困擾的應該是因為 Panel 是透明的，無法直接用 global $Panel1;這種方式
此時，只能使用 $Component 這個變數了！
例如：
function navside_BeforeShow(& $sender)
{
$navside_BeforeShow = true;
$Component = & $sender;
$Container = & CCGetParentContainer($sender);
global $navside; //Compatibility
//End navside_BeforeShow
//Custom Code @17-2A29BDB7
// -------------------------
// Write your own code here.
$db = new clsDBconn_mysql();
$SQL = "SELECT is_fund_opened(".
$db->ToSQL($_SESSION["UserID"], ccsInteger) .
") as v_opened;";
$sql_log = "CALL system_log(".$db->ToSQL($SQL, ccsText).")";
$db->query($sql_log);
$db->query($SQL);
$result = $db->next_record();
if ($db->f("v_opened")==0) {
$Component->Panel1->Visible = True;
$Component->Panel2->Visible = False;
} else {
$Component->Panel1->Visible = False;
$Component->Panel2->Visible = True;
}
$db->close();
// -------------------------
//End Custom Code
//Close navside_BeforeShow @1-E75A1C39
return $navside_BeforeShow;
}
這一段 CCS 自己的說明，要好好看看：
Referencing Objects
The objects in the Web
applications generated by CodeCharge Studio can be referenced in a variety of
ways. In many cases, to work with a specific object within a program you will
need to know its position within the program hierarchy. For example, an object
that is placed directly on the page may need to be addressed differently
compared to an object placed within a form (which is also an object).
ASP
| Examples of working with objects |
Syntax |
| Form object placed on a page |
Page Events |
<form>.Visible = False |
| Form Events |
EventCaller.Visible = False |
| Control object placed within a form |
Page Events |
<form>.<control>.Value = "123" |
| Form Events |
EventCaller.<control>.Value = "123" |
| Control Events |
EventCaller.Value = "123" |
| Control object placed on a page |
Page Events |
<control>.Value = "ABC" |
| Control Events |
EventCaller.Value = "ABC" |
| Control object placed on an included page |
Main Page Events |
<page>.<control>.Visible = False |
| Includable Page Events |
EventCaller.<control>.Visible = False |
| Control Events |
EventCaller.Visible = False |
| Form object placed on an included page |
Main Page Events |
<page>.<form>.Visible = False |
| Includable Page Events |
EventCaller.<form>.Visible = False |
| Form Events |
EventCaller.Visible = False |
| Control object placed in a form within an included page |
Main Page Events |
<page>.<form>.<control>.Visible = False |
| Includable Page Events |
EventCaller.<form>.<control>.Visible = False |
| Form Events |
EventCaller.<control>.Visible = False |
| Control Events |
EventCaller.Visible = False |
Note: Using EventCaller is recommended when planning to reuse the
event code since it doesn't require referring to objects by name.
Perl
| Examples of working with objects |
Syntax |
| Form object placed on a page |
$<form>->{Visible} = 0; |
| Control object placed within a form |
$<form>->{<control>}->SetValue("123"); |
| Control object placed on a page |
$<control>->SetValue("ABC"); |
| Control object placed on an included page |
$<page>->{<control>}->{Visible} = 0; |
| Form object placed on an included page |
$<page>->{<form>}->{Visible} = 0; |
| Control object placed in a form within an included page |
$<page>->{<form>}->{<control>}->{Visible}
= 0; |
| Assigning an object to a variable |
$<variable> = $<object>; |
Java
| Examples of working with objects |
Syntax |
| Form object placed on a page |
Page Events |
e.getPage().getComponent("<form>").setVisible(false); |
| Form Events |
e.getComponent().setVisible(false); |
| Control object placed within a form |
Page Events |
e.getPage().getComponent("<form>").getControl("<control>").setValue("123"); |
| Form Events |
e.getComponent().getControl("<control>").setValue("123"); |
| Control Events |
e.getControl().setValue("123"); |
| Control object placed on a page |
Page Events |
e.getPage().getControl("<control>").setValue("ABC"); |
| Control Events |
e.getControl().setValue("ABC"); |
| Assigning an object to a variable |
<variable> = <object>; |
Note: The syntax for accessing objects in an included page from events
within the same included page is the same as specified above. The syntax for
accessing objects in an included page from events within the including page is
not supported. The syntax for accessing objects in the including page from
events within the included page is also not supported.
C#
| Examples of working with objects |
Syntax |
| Form object placed on a page |
Grid and Editable Grid Events |
<form>Repeater.Visible = false; |
| Record Events |
<form>Holder.Visible = false; |
| Directory and Path Events |
<form>.Visible = false; |
| Control object placed within a Record form |
<form><control>.Visible = false; |
| Control object placed within a Grid, Editable Grid, Directory and
Path form |
Control's Before Show Event |
<form><control>.Visible = false; |
| Form's Before Show and Before Show Row Event |
Object reference should be retrieved from the FormControls
collection.
See the ItemDataBound Event MSDN example. |
| Control object placed on a page |
<control>.Visible = false; |
| Assigning an object to a variable |
<variable> = <object>; |
Note: The syntax for accessing objects in an included page from events
within the same included page is the same as specified above. The syntax for
accessing objects in an included page from events within the including page is
not supported. The syntax for accessing objects in the including page from
events within the included page is also not supported.
VB.Net
| Examples of working with objects |
Syntax |
| Form object placed on a page |
Grid and Editable Grid Events |
<form>Repeater.Visible = False |
| Record Events |
<form>Holder.Visible = False |
| Directory and Path Events |
<form>.Visible = False |
| Control object placed within a Record form |
<form><control>.Visible = False |
| Control object placed within a Grid, Editable Grid, Directory and
Path form |
Control's Before Show Event |
<form><control>.Visible = False |
| Form's Before Show and Before Show Row Event |
Object reference should be retrieved from the FormControls
collection.
See the ItemDataBound Event MSDN example. |
| Control object placed on a page |
<control>.Visible = False |
| Assigning an object to a variable |
<variable> = <object> |
Note: The syntax for accessing objects in an included page from events
within the same included page is the same as specified above. The syntax for
accessing objects in an included page from events within the including page is
not supported. The syntax for accessing objects in the including page from
events within the included page is also not supported.
ColdFusion
| Examples of working with objects |
Syntax |
| Form variable placed on a page or within a form |
<CFSET blnReadAllowed<form>=false> |
| Control variable placed within a form or a page |
<CFSET fld<control> = "abc"> |
Note: The syntax for accessing objects in an included page from events
within the same included page is the same as specified above.
PHP
When using PHP you can address objects in a generic way as $Component to
refer to the component raising the event, and $Container to refer to the host
form of $Component. This method of referring to objects is recommended to make
the event code reusable since it doesn't require referring to objects by name.
You can also refer to objects using global variables, for example use
$MyGrid to refer to 'MyGrid' grid.
| Examples of working with objects in a generic way |
Syntax |
| Form object placed on a page |
Page Events |
$Component->form->visible = false; |
| Form Events |
$Component->Visible = false; |
| Control object placed within a form |
Page Events |
$Component->form->control->SetValue($Component->form->PageNumber); |
| Form Events |
$Component->control->SetValue($Component->PageNumber); |
| Control Events |
$Component->SetValue($Container->PageNumber); |
| Control object placed on a page |
Page Events |
$Component->control->SetValue("ABC"); |
| Control Events |
$Component->SetValue("ABC"); |
| Control object placed on an included page |
Main Page Events |
$Component->page->control->Visible =
false; |
| Includable Page Events |
$Component->control->Visible = false; |
| Control Events |
$Component->Visible = false; |
| Form object placed on an included page |
Main Page Events |
$Component->page->form->Visible =
false; |
| Includable Page Events |
$Component->form->Visible = false; |
| Form Events |
$Component->Visible = false; |
| Control object placed in a form within an included page |
Main Page Events |
$Component->page->form->control->Visible
= false; |
| Includable Page Events |
$Component->form->control->Visible =
false; |
| Form Events |
$Component->control->Visible = false; |
| Control Events |
$Component->Visible = false; |
| Examples of working with objects using global variables |
Syntax |
| Form object placed on a page |
$form->Visible = false; |
| Control object placed within a form |
$form->control->SetValue("123"); |
| Control object placed on a page |
$control->SetValue("ABC"); |
| Control object placed on an included page |
$page->control->Visible = false; |
| Form object placed on an included page |
$page->form->Visible = false; |
| Control object placed in a form within an included page |
$page->form->control->Visible =
false; |
