Devexpress Xaf Criteria Property. The example application: Shows the Expression Constants, Operators

The example application: Shows the Expression Constants, Operators, and Functions The DevExpress Dashboard uses criteria language that you can use in various DevExpress products for building … The main point is this: calculated properties will not have their PersistentAlias Criteria expression evaluated unless their getter is called. Simple Property All the base persistent classes are derived from the … Developer documentation for all DevExpress products. The topic demonstrates an application that allows users to design and save … Both approaches are not type-safe. For details on how to write a criteria, refer to the Ways to Build Criteria topic. The … Developer documentation for all DevExpress products. 2 webpage includes product-specific surveys. To filter a nested list view operating in Server Mode that represents a collection not included in an association, you can create a controller and set the … XAF: Cross-Platform . It is provided to allow creating simple criteria only. Your response to our survey questions will help us … The DataSourceProperty attribute accepts the name of a collection property to be used as the data source. To prevent this from happening … Developer documentation for all DevExpress products. CollectionSource allows … To set the property values, call the BaseObject. To learn how to write criteria correctly, refer to the Ways to Build Criteria topic. Criteria property is used to set a filter on the server side. TargetObjectsCriteria property of the Action to be generated. Refer to the following … The Criteria Language does not support specifying the In operator's arguments in a single parameter - see . 1 Update — Your Feedback Matters Our What's New in v25. The DataSourceCriteria attribute specifies the criteria expression … Implement Business Classes Scenario 1 - Populate the Lookup Property with Objects from the Specified Collection Property Scenario 2 - … In XAF, a combo box with text entries displays enumeration properties. DataSourceProperty is not specified. The following expression will work: "WarehouseCode in ('001x', … Devexpress XAF class property datasource filtering Asked 11 years, 5 months ago Modified 11 years, 4 months ago Viewed 6k times Hello, My question is divided into two parts: Part 1. Title] = 'Developer'. Criteria property of a List View’s ListView. ToInt function: You can check the full reference … Developer documentation for all DevExpress products. Criteria Properties You can specify how a string property that stores filter criteria will be displayed: - via a special Filter Builder; - via an editor that allows you to specify a criterion manually, and … You can build parameterized criteria using any number of positional parameters. An example is available in the Criteria Property of a List View's Collection Source article. DevExpress v24. 1 webpage includes product-specific surveys. Would you please advice if I want to filter / update the datesource of the PropertyEditor … Nov 12, 2025 5 minutes to read This topic demonstrates how to customize the FullTextSearch Action’s behavior. How to: Use Read-Only Persistent Properties Sep 15, 2020 3 minutes to read In this document, you will learn how to … Developer documentation for all DevExpress products. Add Conditional Appearance Module to an XAF Application … XPO Attributes The following table lists attributes from the DevExpress. The remaining built-in XPO attributes are processed … The Criteria property of the Application Model ‘s IModelListView node allows you to filter List Views using the Model Editor. Set the Criteria property to [Position. You need to implement a custom Property Editor that obtains the … Hello, Sheldmandu. In the second approach, the whole string that contains the query expression can’t be checked, and therefore can bring up runtime errors. Security. Each Windows Forms Property Editor is available in two forms: 1. Your … Developer documentation for all DevExpress products. 2 Update — Your Feedback Matters Our What's New in v25. Implement … Hi, see attached Screenshot. Remarks Non-persistent calculated properties for which filtering and sorting should be performed on the database level can be … The Security System allows users to read/write a non-aggregated associated property if you explicitly granted access to one … Hello Ralph, XAF provides a built-in support for making developers their own managers;-) Seriously, you can modify the criteria string as follows: Developer documentation for all DevExpress products. The attribute’s parameter is the name of an … This example illustrates how to display a collection property as a checked list box in XAF applications. … Criteria Property of a List View's Collection Source Aug 28, 2025 2 minutes to read The CollectionSourceBase. Persistent. Add one more child node to the Filters node … This topic describes how to use the Conditional Appearance Module in order to hide List View columns and Detail View Property Editors that are prohibited by the Security … The RuleCriteria attribute demands that the current object satisfies a specified criteria. Edit the Updater. - xaf-how-to-use-criteria-property-editors/Readme. 1+ · DevExpress-Examples/xaf-how-to-use-criteria … Specifies the criteria string used when determining whether AppearanceAttribute. For reference and collection properties, the attribute specifies the … Set the Id property to Developers. dll assembly, in the … If you do not use the TypeConverter attribute for a type property, XAF loads a string representation of found types to the editor’s … Developer documentation for all DevExpress products. Refer to the following help topic for step-by-step instructions: How to: Enable Database Storage for … This example illustrates the specifics of using Criteria Property Editors in an XAF application. To use Criteria Syntax, decorate properties with the PersistentAliasAttribute with a Criteria Syntax expression as a parameter. Xpo namespace specifically used by XAF. If it is required to allow end users create complex criteria, assign the … Related GitHub Examples The following code snippets (auto-collected from DevExpress Examples) contain references to the Criteria property. When a user clicks the MySearch action, create a criterion based on the properties described in the first step and get persistent objects that fit this criterion. Remarks Apply this attribute to a business class property to define a validation rule that will check whether this property’s value is within … Will the Built-in Property Editors TagBox support model attributes like DataSourceCriteriaProperty, DataSourceCriteria and DataSourceProperty ? This will help a lot. The sample Contact class contains five properties: Name, IsMarried, … You can apply a DataSourceCriteriaPropertyAttribute to a reference, collection, or enumeration property of a business class. Validation. NET …. 2 Update — Your Feedback Matters Our What's New in v24. How to use the Expression Editor of the report designer as a string property editor in the xaf application to build … Developer documentation for all DevExpress products. … Developer documentation for all DevExpress products. Determine if a User Has a Particular Role Use the IsUserInRole Extension Method Get the current user object as … Indicates criteria for filtering the List View of the target property’s Lookup Property Editor, in case the DataSourcePropertyAttribute. WinForms Each Windows Forms Property Editor is available in two forms: A standalone control (displays property value in a Detail … XAF does not have a built-in Property Editor for enumeration properties that can store several values at once. Here 2 Criteria operators have their own syntax to convert string literals to int values. This feature is considered as an unnatural scenario and … Developer documentation for all DevExpress products. Criteria Operators Sep 28, 2022 The table below lists all the operators provided by DevExpress Data Library. To do this, add parameter placeholders (question mark characters) to a criteria expression to … Design and save filtering criteria at runtime in an XAF application. … ASPxCriteriaPropertyEditor doesn't support this functionality. Your … This can be a complex task that requires good knowledge of XAF: UI Customization Categories by Skill Level, and you may need to research how our components work. Remarks The common rules of writing a criteria are described in the Ways to Build Criteria topic. If you set the … Note You can use Function Criteria Operators when passing a criteria as the TargetCriteria parameter. XAF’s Windows Forms UI supports several Property Editors that work with filter criteria. Your … To learn about Collection Sources, refer to the CollectionSourceBase class description. I'm using xaf Criteria to filter a dropdown and want to filter using a property from the parent object I used This. … I use the eXpressApp Framework to develop a windows application. You need to use them instead of system Convert. The EnumDescriptor class gets images and localized item … This attribute is considered when a property is being loaded and saved. This means … The XAF includes various techniques to filter List Views: at the data source level, in the Application Model, and with special methods for filtering Lookup Property Editor List Views. Blazor and … It's not a criteria operator. 2 … DevExpress v25. dll assembly. Hello, I have a scenario where I need to filter based on a child property of a collection of a sibling property and need a bit of help. To use the built-in XAF Criteria Property Editors, the property that holds a criterion must have the CriteriaOptionsAttribute applied. this is my code: … Custom Property Editors The XAF ships with a set of different Property Editors that cover most of the data management scenarios (see … Developer documentation for all DevExpress products. First, I modified the FilteringCriterion class as follows: Criteria Property of the Data Source The data source ‘s DataSourceBase. v25. SetPropertyValueWithSecurityBypass method. These methods are invoked in the property getters. Related … Developer documentation for all DevExpress products. When a property is decorated with a RuleRequiredFieldAttribute, the property value is not … You can use this function in a filter expression in a way similar to the CurrentUserId function as described in the Function Criteria Operators topic. Developer documentation for all DevExpress products. The Filter Builder is available for properties that store filter criteria in ASP. Examples Collection Properties in XPO Collection Properties in … You can use the Criteria property to filter collection objects, or set the LoadingEnabled property to false and add objects to the collection. The complete description is available in the How to: Use Criteria Property Editors help topic. In criteria, you can use Function Criteria Operators. Having the business logic in separate methods allows you to update a property’s … Developer documentation for all DevExpress products. This method allows you to modify … Dear support, I have BO with a property that reference to other object. Note All the rules, Property types and attributes that are presented in the table above are declared in the DevExpress. Here, this rule is applied to the RuleCriteriaObject class to demand that the following criteria are … By default, XAF creates the StringPropertyEditor for String type properties. NET App UI & Web API DevExpress v25. However, this approach won't help you simplify criteria processed on the server side. md at 24. Is it possible to display the criteria in a xaf report "well named"? Greetings Jens This property value is assigned to the ActionBase. The example code uses a … This topic details the specifics of using Criteria Property Editors in an XAF application. Subscribe to the … The following image demonstrates how the TargetObjectsCriteria property is specified in the Model Editor: This criteria expression uses the LocalDateTimeToday function criteria operator. Note that you can use Function … DevExpress v25. Using "DataSourceCriteria" is very easy to manage the criteria for t I am pretty sure the TargetObjectsCriteria once worked in the (real) application, but probably the criteria stopped working somewhere when doing upgrades over the years (maybe … To use XAF Validation functionality, you need the DevExpress. ExpressApp. This Action filters the current List … To use the built-in XAF Criteria Property Editors, the property that holds a criterion must have the CriteriaOptionsAttribute applied. Your response to our survey questions will help us … The BaseObjectSpace class’ FintObject<ObjectType> (CriteriaOperator criteria) method invokes a public virtual FindObject (Type objectType, CriteriaOperator criteria, Boolean inTransaction) … Hello Andrey, I am trying to replicate your problem with the help of the How to use Criteria Property Editors example. … So the criteria can be like “1=1” or a criteria using a Function Criteria Operator that is not based on the current object properties. Provides the abstract (MustInherit in Visual Basic) base class for criteria operators. I've created a Property Editor with LookupEdit and use it in a column of a ListView. 2. I want to filter a lookup view property editor depending on an enum property in my class. Base. before in older versions Developer documentation for all DevExpress products. Can th In the module project, reference the DevExpress. TargetItems should be affected by the conditional appearance rule generated from the current attribute. cs file located in the DatabaseUpdate folder of your module project. Remarks You can apply a DataSourceCriteriaAttribute to a reference, collection, or enumeration property of a business … Use the criteria parameter to specify the required criterion. An XAF UI displays reference properties with the help of the Lookup Property Editor: You may need to filter the drop-down list in a … When a user selects a filter and clicks the OK button, the controller assigns the corresponding filter criteria to the AdditionalCriteria Application Model property. DevExpress v25. Your response to our survey questions will help us … Hi DX, I am trying to create a Criteria property within the model and specify a business object type in the CriteriaOptionsAttribute. To remove leading … Adjust Data Sources for Reference and Collection Properties Criteria Property of a List View’s Collection Source Criteria Property in the Application Model How to: Add a Search … Developer documentation for all DevExpress products. You should get an InvalidPropertyPath exception when using this property in TargetObjectsCriteria. You can use Function Criteria Operators in the criteria that is assigned to this … DevExpress v25. XAF offers special criteria operators including … In a XAF project I use DomainComponent like the following: [DomainComponent] public interface IService { decimal Amount { get;set; }; } [DomainComponent] public interface … The Criterion property holds a criterion. Refer to the following help topic for step-by-step instructions: How to: Enable Database Storage for User … This example designs and saves filter criteria at runtime in an XAF application. A standalone control (displays property value in … The places where you should specify a criteria as a string include properties in the Model Editor, and attributes and different … This example designs and saves filter criteria at runtime in an XAF application. This Property Editor displays a dropdown list of items if the corresponding BOModel | <Class> | … Default Collection Use the DataSourcePropertyIsNullMode property to specify the default collection displayed by the lookup list view if DataSourceProperty returns null. f6k1ebblpi
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