Public ReadOnly Property IsPostBack As Boolean

Dim instance As Page
Dim value As Boolean

value = instance.IsPostBack

public bool IsPostBack { get; }

public:
property bool IsPostBack {
    bool get ();
}

/** @property */
public boolean get_IsPostBack ()

public function get IsPostBack () : boolean

Sub Page_Load
    If Not IsPostBack
        ' Validate initially to force the asterisks
' to appear before the first roundtrip.
        Validate()
    End If
End Sub

void Page_Load() {
    if (!IsPostBack) {
        // Validate initially to force asterisks
// to appear before the first roundtrip.
        Validate();
    }
}

function Page_Load() {
    if (!IsPostBack) {
        // Validate initially to force the asterisks
// to appear before the first roundtrip.
        Validate();
    }
}