Control.IsLiteralContent Control.IsLiteralContent Control.IsLiteralContent Control.IsLiteralContent Method

Definizione

Spazio dei nomi:
System.Web.UI System.Web.UI System.Web.UI System.Web.UI
Assembly:
System.Web.dll

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

Boolean Boolean Boolean Boolean

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 IsLiteralContent metodo 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 UniqueID proprietà dell'oggetto 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 viene truerestituito, 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.

Si applica a

Vedi anche