XPDictionary.CreateClass(XPClassInfo, String, Attribute[]) Method

Creates a class with the specified name and attributes.

Namespace: DevExpress.Xpo.Metadata

Assembly: DevExpress.Xpo.v23.2.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

NuGet Package: DevExpress.Xpo

Declaration

C#

public XPClassInfo CreateClass(
    XPClassInfo baseClassInfo,
    string className,
    params Attribute[] attributes
)

VB.NET

Public Function CreateClass(
    baseClassInfo As XPClassInfo,
    className As String,
    ParamArray attributes As Attribute()
) As XPClassInfo

Parameters

Name	Type	Description
baseClassInfo	XPClassInfo	An XPClassInfo object which provides the metadata information of the base class.
className	String	A String value that specifies the class name.
attributes	Attribute[]	An array of attributes.

Returns

Type	Description
XPClassInfo	The XPClassInfo for the created class.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the CreateClass(XPClassInfo, String, Attribute[]) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XPO_how-to-define-a-persistent-class-at-runtime-e1139/CS/CreateClassAtRuntime/Program.cs#L17

XPClassInfo myBaseClass = dictionary.GetClassInfo(typeof(MyBaseObject));
XPClassInfo myClassA = dictionary.CreateClass(myBaseClass, "MyObjectA");
myClassA.CreateMember("ID", typeof(int), new KeyAttribute(true));

XPO_how-to-generate-persistent-metadata-for-an-arbitrary-data-table-e2922/CS/MapArbitraryDatabaseExample/Program.cs#L37

    throw new NotSupportedException("Compound primary keys are not supported");
XPClassInfo classInfo = dict.CreateClass(dict.GetClassInfo(typeof(BasePersistentClass)), table.Name.Replace('.', '_'));
classInfo.AddAttribute(new PersistentAttribute(table.Name));

XPO_how-to-generate-persistent-classes-at-runtime-based-on-a-dataset-e1198/CS/WindowsApplication4/Form1.cs#L25

DBTable table = tables[0];
XPClassInfo info = XpoDefault.Dictionary.CreateClass(XpoDefault.Dictionary.QueryClassInfo(baseType), table.Name);
string key = table.PrimaryKey.Columns[0];

XPO_how-to-persist-metadata-e269/CS/MetadataObjects.cs#L58

    baseClassInfo = dictionary.GetClassInfo(GetDefaultBaseClass());
result = dictionary.CreateClass(baseClassInfo, Name);
CreateAttributes(result);

VB.NET

XPO_how-to-generate-persistent-classes-at-runtime-based-on-a-dataset-e1198/VB/WindowsApplication4/Form1.vb#L24

Dim table As DBTable = tables(0)
Dim info As XPClassInfo = XpoDefault.Dictionary.CreateClass(XpoDefault.Dictionary.QueryClassInfo(baseType), table.Name)
Dim key As String = table.PrimaryKey.Columns(0)

XPO_how-to-persist-metadata-e269/VB/MetadataObjects.vb#L79

End If
result = dictionary.CreateClass(baseClassInfo, Name)
CreateAttributes(result)