CultureInfo.IsReadOnly Vlastnost
Definice
Důležité
Některé informace platí pro předběžně vydaný produkt, který se může zásadně změnit, než ho výrobce nebo autor vydá. Microsoft neposkytuje žádné záruky, výslovné ani předpokládané, týkající se zde uváděných informací.
Získá hodnotu označující, zda CultureInfo aktuální je jen pro čtení.
public:
property bool IsReadOnly { bool get(); };
public bool IsReadOnly { get; }
member this.IsReadOnly : bool
Public ReadOnly Property IsReadOnly As Boolean
Hodnota vlastnosti
true
pokud je aktuální CultureInfo jen pro čtení, false
v opačném případě . Výchozí formát je false
.
Příklady
Následující příklad kódu ukazuje, že IsReadOnly také pomáhá chránit DateTimeFormatInfo instance a NumberFormatInfo přidružené k objektu CultureInfo.
using namespace System;
using namespace System::Globalization;
int main()
{
// Creates a CultureInfo.
CultureInfo^ myCI = gcnew CultureInfo( "en-US" );
// Creates a read-only CultureInfo based on myCI ->
CultureInfo^ myReadOnlyCI = CultureInfo::ReadOnly( myCI );
// Display the read-only status of each CultureInfo and their DateTimeFormat and NumberFormat properties.
Console::WriteLine( "myCI is {0}.", myCI->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myCI -> DateTimeFormat is {0}.", myCI->DateTimeFormat->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myCI -> NumberFormat is {0}.", myCI->NumberFormat->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myReadOnlyCI is {0}.", myReadOnlyCI->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myReadOnlyCI -> DateTimeFormat is {0}.", myReadOnlyCI->DateTimeFormat->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myReadOnlyCI -> NumberFormat is {0}.", myReadOnlyCI->NumberFormat->IsReadOnly ? (String^)"read only" : "writable" );
}
/*
This code produces the following output.
myCI is writable.
myCI -> DateTimeFormat is writable.
myCI -> NumberFormat is writable.
myReadOnlyCI is read only.
myReadOnlyCI -> DateTimeFormat is read only.
myReadOnlyCI -> NumberFormat is read only.
*/
using System;
using System.Globalization;
public class SamplesCultureInfo {
public static void Main() {
// Creates a CultureInfo.
CultureInfo myCI = new CultureInfo( "en-US" );
// Creates a read-only CultureInfo based on myCI.
CultureInfo myReadOnlyCI = CultureInfo.ReadOnly( myCI );
// Display the read-only status of each CultureInfo and their DateTimeFormat and NumberFormat properties.
Console.WriteLine( "myCI is {0}.", myCI.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myCI.DateTimeFormat is {0}.", myCI.DateTimeFormat.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myCI.NumberFormat is {0}.", myCI.NumberFormat.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myReadOnlyCI is {0}.", myReadOnlyCI.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myReadOnlyCI.DateTimeFormat is {0}.", myReadOnlyCI.DateTimeFormat.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myReadOnlyCI.NumberFormat is {0}.", myReadOnlyCI.NumberFormat.IsReadOnly ? "read only" : "writable" );
}
}
/*
This code produces the following output.
myCI is writable.
myCI.DateTimeFormat is writable.
myCI.NumberFormat is writable.
myReadOnlyCI is read only.
myReadOnlyCI.DateTimeFormat is read only.
myReadOnlyCI.NumberFormat is read only.
*/
Imports System.Globalization
Public Class SamplesCultureInfo
Public Shared Sub Main()
' Creates a CultureInfo.
Dim myCI As New CultureInfo("en-US")
' Creates a read-only CultureInfo based on myCI.
Dim myReadOnlyCI As CultureInfo = CultureInfo.ReadOnly(myCI)
' Display the read-only status of each CultureInfo and their DateTimeFormat and NumberFormat properties.
If myCI.IsReadOnly Then
Console.WriteLine("myCI is read only.")
Else
Console.WriteLine("myCI is writable.")
End If
If myCI.DateTimeFormat.IsReadOnly Then
Console.WriteLine("myCI.DateTimeFormat is read only.")
Else
Console.WriteLine("myCI.DateTimeFormat is writable.")
End If
If myCI.NumberFormat.IsReadOnly Then
Console.WriteLine("myCI.NumberFormat is read only.")
Else
Console.WriteLine("myCI.NumberFormat is writable.")
End If
If myReadOnlyCI.IsReadOnly Then
Console.WriteLine("myReadOnlyCI is read only.")
Else
Console.WriteLine("myReadOnlyCI is writable.")
End If
If myReadOnlyCI.DateTimeFormat.IsReadOnly Then
Console.WriteLine("myReadOnlyCI.DateTimeFormat is read only.")
Else
Console.WriteLine("myReadOnlyCI.DateTimeFormat is writable.")
End If
If myReadOnlyCI.NumberFormat.IsReadOnly Then
Console.WriteLine("myReadOnlyCI.NumberFormat is read only.")
Else
Console.WriteLine("myReadOnlyCI.NumberFormat is writable.")
End If
End Sub
End Class
' This code produces the following output.
'
' myCI is writable.
' myCI.DateTimeFormat is writable.
' myCI.NumberFormat is writable.
' myReadOnlyCI is read only.
' myReadOnlyCI.DateTimeFormat is read only.
' myReadOnlyCI.NumberFormat is read only.
Poznámky
Pokud je objekt CultureInfo jen pro čtení, DateTimeFormat jsou instance a NumberFormat také jen pro čtení.