FieldIsLocked Property

public bool IsLocked { get; set; }

Public Property IsLocked As Boolean
	Get
	Set

public:
property bool IsLocked {
	bool get ();
	void set (bool value);
}

member IsLocked : bool with get, set

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

FieldDate field = (FieldDate)builder.InsertField(FieldType.FieldDate, true);
field.Format.DateTimeFormat = "dddd, MMMM dd, yyyy";
field.Update();

FieldChar fieldStart = field.Start;

Assert.AreEqual(FieldType.FieldDate, fieldStart.FieldType);
Assert.AreEqual(false, fieldStart.IsDirty);
Assert.AreEqual(false, fieldStart.IsLocked);

// Retrieve the facade object which represents the field in the document.
field = (FieldDate)fieldStart.GetField();

Assert.AreEqual(false, field.IsLocked);
Assert.AreEqual(" DATE  \\@ \"dddd, MMMM dd, yyyy\"", field.GetFieldCode());

// Update the field to show the current date.
field.Update();