Control.IsLiteralContent Metodo
Definizione
Determina se il controllo server conserva solo il contenuto literal.Determines if the server control holds only literal content.
protected:
bool IsLiteralContent();
protected bool IsLiteralContent ();
member this.IsLiteralContent : unit -> bool
Protected Function IsLiteralContent () As Boolean
Restituisce
true
se il controllo server contiene solo il contenuto literal; in caso contrario false
.true
if the server control contains solely literal content; otherwise false
.
Esempi
Nell'esempio seguente viene verificato se è stato eseguito il postback della pagina che contiene i controlli server.The following example checks whether the page that contains the server controls has posted back. In caso contrario, chiama il metodo IsLiteralContent per determinare se il controllo contiene solo contenuto letterale oppure è un controllo padre per altri controlli server.If it has, it calls the IsLiteralContent method to determine whether the control contains just literal content, or is a parent control to other server controls. Se contiene solo contenuto letterale, la proprietà UniqueID della LiteralControl che rappresenta il contenuto viene scritta nella risposta.If it contains solely literal content, the UniqueID property of the LiteralControl that represents that content is written to the response.
// Override the OnLoad method to check if the
// page that uses this control has posted back.
// If so, check whether this controls contains
// only literal content, and if it does,
// it gets the UniqueID property and writes it
// to the page. Otherwise, it writes a message
// that the control contains more than literal content.
protected override void OnLoad(EventArgs e)
{
if (Page.IsPostBack)
{
String s;
if (this.IsLiteralContent())
{
s = Controls[0].UniqueID;
Context.Response.Write(s);
}
else
{
Context.Response.Write(
"The control contains more than literal content.");
}
}
}
' Override the OnLoad method to check if the
' page that uses this control has posted back.
' If so, check whether this controls contains
' only literal content, and if it does,
' it gets the UniqueID property and writes it
' to the page. Otherwise, it writes a message
' that the control contains more than literal content.
Overrides Protected Sub OnLoad(ByVal e As EventArgs)
If Page.IsPostBack = True Then
Dim s As String
If Me.IsLiteralContent() = True Then
s = Controls(0).UniqueID
Context.Response.Write(s)
Else
Context.Response.Write( _
"The control contains more than literal content.")
End If
End If
End Sub
Commenti
Quando questo metodo restituisce true
, la raccolta del controllo server include un singolo controllo Literal.When this method returns true
, the server control's collection holds a single literal control.