Welcome
New & Updated Demos
- Spreadsheet Properties
Actions
- Custom Action Controls
  - Inline Actions In Grid
  - Actions In Views
- Actions In Detail Views
- Messages
- Parametrized Action
- Popup Window Show Action
- Simple Action
- Single Choice Action
Audit
- Audit Settings
- Collection Properties Audit
- Object Auditing Modes
- Simple Properties Audit
Concurrent Modifications
- Concurrent Modifications
Conditional Appearance
- Disabling/Enabling Actions
- Object Properties Formatting
- Layout Item Properties Formatting
- Disabling/Enabling Editors
- Hiding/Showing Editors
- Using the * Wildcard
- Superposition of Rules
- TreeList Editors Support
Custom Fields
- Custom Fields
Dashboards
- Sales Overview
Dashboard Views
- Simple Dashboard
- Switch Dashboards via View Variants
  - View Variants
    - Employees Dashboard
    - Sales Dashboard
- Advanced Dashboard
Domain Components
- Persistent Properties
- Associations
- Multiple Inheritance
- Domain Logic For Properties
- Domain Logic For Methods
- Domain Logic Inheritance
Filtering
- Filter by Text
Key Property
- Guid Key
- Integer Key
- String Key
KPI
- Definition
- Scorecard
Layout
- Default Focused Item
- Item Templates
List Editors
- Grid
- Scheduler
  - Filtering
    - Filter
    - Filter By Text
  - Performance
- Tree
  - Filtering
    - Filter
    - Filter By Text
  - Performance
  - Node Images
- Custom
  - Custom List Editor
- Chart
- Editor Variants
  - Visualize Data via Different List Editors
    - View Variants
- Maps
- PivotGrid
  - Sales Analysis
Localization
- Choose Language in Tools
Navigation
- Navigation System
Non-Persistent Objects
- Non-Persistent Objects List
- New Non-Persistent Object with a Persistent Reference Property
- Non-Persistent Object with a Persistent Reference Property by Key
- Non-Persistent Object with a Non-Persistent Collection Property
Notifications
- Scheduler Events With Notifications
- Custom Entity With Notifications
Performance
- Server Mode
- List View Data Access Modes
Property Editors
- String Properties
- Numeric Properties
- Date Time Properties
- Boolean Properties
- Image Properties
- Collection Properties
- Reference Properties
- File Attachment Properties
- Enum Properties
- Criteria Properties
- Struct Properties
- Custom Formatted Properties
- Map Properties
- Color Properties
- Custom Property Editors
- Rich Text Properties
- Spreadsheet Properties
- String In Special Format Properties
Reports
- Contact
- Dashboards
- Reports
- Reports With Inline Export Actions
- Mail Merge Template
Validation
- Required Field
- Conform to Criteria
- Must be in Range
- Compare Value to Another
- Test Value as String
- Test Value with Regular Expression
- Test with Boolean Property
- Test Object Exists
- Value Must be Unique
- Combination of Values Must be Unique
- Check Object is not Referenced
- Check Value with Tailored Algorithm
- Check Value with Custom Rule
- Validation Message Templates
- Simple Validation Settings
- Complex Validation Settings
- Miscellaneous Validation Features
- Soft Validation
- Inplace Validation
View Variants
- View Variants Object
  - View Variants
    - Grouped Layout
    - Simple Layout
State Machine
- Payment Task
- Task
- Employee
- State Machine
- Status

Tools

Required Field

The RuleRequiredField attribute demands that a particular property has a value. Here, this rule is applied to the RequiredDateTimeProperty and RequiredStringProperty properties.
To check this rule, save the current object.

Name

Ascending

Not filtered

Required String Property

Not filtered

Required Date Time Property

Not filtered

Invalid RuleRequiredFieldObject

Valid RuleRequiredFieldObject

Non-empty string

12/21/2024

Page 1 of 1 (2 items)1 Page size:

Hide