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

Combination of Values Must be Unique

The RuleCombinationOfPropertiesIsUnique attribute demands that a combination of the specified properties is unique. Here, this rule is used to check a combination of the Description and Type properties.
To check this rule, save the current object.

Name

Ascending

Not filtered

Type

Not filtered

Description

Not filtered

Invalid RuleCombinationOfPropertiesIsUniqueObject 1

First

First description

Invalid RuleCombinationOfPropertiesIsUniqueObject 2

First

First description

Valid RuleCombinationOfPropertiesIsUniqueObject 1

Second

Second description

Valid RuleCombinationOfPropertiesIsUniqueObject 2

Third

First description

Page 1 of 1 (4 items)1 Page size:

Hide