FieldBase class | QSYS API Reference Guide
Estimated reading time: 2 minutes
Provides common methods for DdsFields and DdsConstants.
Namespace: ASNA.QSys.Expo.Tags Assembly: ASNA.QSys.Expo.Tags.dll
Inheritance: Object –> TagHelper
Remarks
A FieldBase is used by tag Helpers that may be bound to a Model field.
As an abstract class it cannot be used directly.
The FieldBase is the class that implements all the common behavior for the rest of the DdsXXXFields:
DdsConstant, DdsCharField, DdsDecField, DdsDateField, DdsDecDateField,
etc.
Properties
| Type | Name | Description |
|---|---|---|
| Boolean | AutoPostBack | Gets or sets boolean value to indicate that input-capable field should post-back the form as soon as user enters a value. |
| AidKey | AutoPostBackKey | Gets or sets the Aid Key that should be posted. Defaults to AidKey.Unknown which prevents automatic post-back. |
| Int32 | Col | Gets or sets a value that indicates horizontal position for field/constant within the page. Valid values start at 1 typically up to 132. |
| String | Color | Gets or sets a value that indicates the conditional expression string that evaluates to a Web named color. Conditions are separated by comma. Depend on conditional indicators. |
| Int32 | ColSpan | Gets or sets a value that indicates the amount of positions used by field/constant. Default is zero, meaning: compute element length. |
| String | Comment | Gets or sets the text used to document the Field/Constant. Used as comment, does not render as HTML. |
| DdsFileTagHelper | ddsFile | Gets or sets a value indicating the associated DdsFile tag helper for the field/constant. |
| Byte | DisplayAttrCode | Gets or sets hex Display attribute code indicating the legacy P-field Display Attribute code. |
| String | InvertFontColors | Gets or sets conditional expression string that determines if background and foreground colors should be switched. Render equivalent to legacy Reverse-Image display attribute. |
| LeftPadOption | LeftPad | Gets or sets a LeftPadOption value indicating how to pad values after changing the value of an input-capable field. |
| String | MandatoryEnter | Gets or sets conditional expression string that determines if field input is mandatory. Mandatory Enter fields without value change will avoid the form submission. |
| Boolean | MandatoryFill | Gets or sets a value that determines if filling up a field is mandatory. Mandatory Fill fields need to use the whole field length. The form will not be submitted until all fields are filled. |
| Int32 | TabIndex | Gets or sets a value indicating that its element can be focused, and where it participates in sequential keyboard navigation (usually with the Tab key, hence the name). |
| String | Underline | Gets or sets conditional expression string that determines if text should be underlined. Underline is rendered as a bottom-border CSS style. |
| String | VisibleCondition | Gets or sets conditional expression string that determines if field/constant is visible. Non-visible fields/constants are not rendered. |
Methods
| Signature | Description |
|---|---|
| IsVisible() | Gets a value that indicates if element should be rendered. |
bool IsVisible()
Gets a value that indicates if element should be rendered.
bool IsVisible()