expressappframework-devexpress-dot-expressapp-dot-validation-35fb37df.md
A Nodes Generator that generates the content of the IModelValidationRules node.
Namespace : DevExpress.ExpressApp.Validation
Assembly : DevExpress.ExpressApp.Validation.v25.2.dll
NuGet Package : DevExpress.ExpressApp.Validation
public class ModelValidationRulesNodeGenerator :
ModelNodesGeneratorBase
Public Class ModelValidationRulesNodeGenerator
Inherits ModelNodesGeneratorBase
This class is a ModelNodesGeneratorBase descendant, that generates child nodes of the Validation | Rules node. Collects Validation Rules specified in code and adds corresponding IModelRuleBase nodes.
To customize the content of the Rules node, implement a Generator Updater for this Nodes Generator by inheriting the ModelNodesGeneratorUpdater<T> class in the following manner:
public class Updater : ModelNodesGeneratorUpdater<ModelValidationRulesNodeGenerator> {
public override void UpdateNode(ModelNode node) {
// Cast the 'node' parameter to IModelValidationRules
// to access the Rules node.
}
}
The Generator Updater above should be registered within the overridden ModuleBase.AddGeneratorUpdaters method.
For a complete list of available Nodes Generators, refer to the Built-in Nodes Generators topic.
Object ModelNodesGeneratorBase ModelValidationRulesNodeGenerator
See Also
ModelValidationRulesNodeGenerator Members
Read and Set Values for Built-in Application Model Nodes in Code