PdfChoiceField Class
Represents a base class for choice fields, such as PdfListBoxField and PdfDropdownField, that contain several text items, at most one of which may be selected as the field value.
public abstract class PdfChoiceField : PdfVariableTextFieldPublic MustInherit Class PdfChoiceField
Inherits PdfVariableTextField- Inheritance:
- System.ObjectPdfChoiceField
- Derived
Properties
CommitSelectedValueImmediately
(PDF 1.5) If set to true, the new value shall be committed as soon as a selection is made (commonly with the pointing device). In this case, supplying a value for a field involves three actions: selecting the field for fill-in, selecting a choice for the fill-in value, and leaving that field, which finalizes or "commits" the data choice and triggers any actions associated with the entry or changing of this data. If this property is true, then processing does not wait for leaving the field action to occur, but immediately proceeds to the third step.
This property enables applications to perform an action once a selection is made, without requiring the user to exit the field. If false, the new value is not committed until the user exits the field.
public bool CommitSelectedValueImmediately { get; set; }Public Property CommitSelectedValueImmediately As BooleanProperty Value
- System.Boolean
If set to true, the new value shall be committed as soon as a selection is made (commonly with the pointing device). If false, the new value is not committed until the user exits the field.
See Also
Items
Gets the items of this PdfChoiceField.
public PdfChoiceFieldItemCollection Items { get; }Public ReadOnly Property Items As PdfChoiceFieldItemCollectionProperty Value
The items of this PdfChoiceField.
SelectedIndex
Gets or sets the index of the selected item or -1 if no item is selected.
Property Value
- System.Int32
The index of the selected item or -1 if no item is selected.
Exceptions
- System.ArgumentOutOfRangeException
Value is less than zero or greater than or equal to the number of items in the Items collection.
SelectedItem
Gets or sets the selected item or null if no item is selected.
public PdfChoiceFieldItem? SelectedItem { get; set; }Public Property SelectedItem As PdfChoiceFieldItem?Property Value
- System.Nullable<PdfChoiceFieldItem>
The selected item or null if no item is selected.
Inherited Properties
| Actions | (Optional; PDF 1.1) An action that shall be performed when the field's annotation is activated (see 12.6, "Actions"). (Inherited from PdfField) |
| AnnotationType | Gets the Widget value. (Inherited from PdfField) |
| Appearance | Gets the appearance settings for this PdfVariableTextField. (Inherited from PdfVariableTextField) |
| AssociatedFiles | (Optional; PDF 2.0) An array of one or more PdfFileSpecifications which denote the associated files for this PdfAnnotation. (Inherited from PdfAnnotation) |
| Bounds | (Required) The annotation bounds, defining the location and the size of the annotation on the page in default user space units. (Inherited from PdfAnnotation) |
| DefaultValue | (Optional; inheritable) The default value to which the field reverts when a reset-form action is executed. The format of this value is the same as that of Value. (Inherited from PdfField) |
| FieldType | Gets the type of this field. (Inherited from PdfField) |
| Hidden | (PDF 1.2) If set, do not display the annotation on the screen or allow it to interact with the user. The annotation may be printed (depending on the setting of the Print flag) but should be considered hidden for purposes of on-screen display and user interaction. (Inherited from PdfField) |
| Locked | (PDF 1.4) If set, do not allow the annotation to be deleted or its properties (including position and size) to be modified by the user. However, this flag does not restrict changes to the annotation's contents, such as the value of a form field. (Inherited from PdfAnnotation) |
| Metadata | (Optional; PDF 1.4) A metadata stream containing metadata for the component. (Inherited from PdfObject) |
| Name | Gets the (fully qualified) field name. (Inherited from PdfField) |
| Page | Gets the page with which this annotation is associated. (Inherited from PdfAnnotation) |
(PDF 1.2) If set, print the annotation when the page is printed. If clear, never print the annotation, regardless of whether it is displayed on the screen. noteThis can be useful for annotations representing interactive pushbuttons, which would serve no meaningful purpose on the printed page. (Inherited from PdfField) | |
| ReadOnly | If set, the user may not change the value of the field. Any associated widget annotations will not interact with the user; that is, they will not respond to mouse clicks or change their appearance in response to mouse motions. This flag is useful for fields whose values are computed or imported from a database. (Inherited from PdfField) |
| Tooltip | (Optional; PDF 1.3) An alternate field name that shall be used in place of the actual field name wherever the field shall be identified in the user interface (such as in error or status messages referring to the field). This text is also useful when extracting the document's contents in support of accessibility to users with disabilities or for other purposes (see 14.9.3, "Alternate Descriptions"). (Inherited from PdfField) |
| Value | (Optional; inheritable) The field’s value, whose format varies depending on the field type. See the descriptions of individual field types for further information. (Inherited from PdfField) |
Inherited Methods
| SetBounds(System.Double, System.Double) | Sets the size of the Bounds. (Inherited from PdfAnnotation) |
| SetBounds(System.Double, System.Double, System.Double, System.Double) | Sets the Bounds. (Inherited from PdfAnnotation) |
| ToString() | Returns a System.String that represents this PdfField instance. (Inherited from PdfField) |