XpoDefault.GetDataLayer(AutoCreateOption) Method

Creates a data layer for the default connection string and default metadata information.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v18.2.dll

Declaration

C#

public static IDataLayer GetDataLayer(
    AutoCreateOption defaultAutoCreateOption
)

VB.NET

Public Shared Function GetDataLayer(
    defaultAutoCreateOption As AutoCreateOption
) As IDataLayer

Parameters

Name	Type	Description
defaultAutoCreateOption	AutoCreateOption	An AutoCreateOption value that specifies which operations should be performed when a data store is accessed for the first time.

Returns

Type	Description
IDataLayer	The created SimpleDataLayer object.

Remarks

This method creates a corresponding IDataStore object based on the default connection string (returned by the XpoDefault.ActiveConnectionString property) and defaultAutoCreateOption parameter and then creates a SimpleDataLayer object that wraps the created IDataStore object. The metadata information used to create the data layer is obtained via the XpoDefault.GetDictionary method.

The value returned by this method can be used to initialize the XpoDefault.DataLayer property or passed to a Session object’s constructor.

When you have finished working with a data layer you need to dispose of it to release the resources allocated by the data layer.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the GetDataLayer(AutoCreateOption) 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-adjust-the-lookupedit-so-it-can-be-used-with-persistent-objects-e570/CS/Form1.cs#L98

static void Main() {
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(DevExpress.Xpo.DB.AutoCreateOption.DatabaseAndSchema);
    Application.Run(new Form1());

XPO_how-to-display-a-complex-propertys-subproperties-in-data-bound-controls-e742/CS/Form1.cs#L215

{
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema);
    Application.Run(new Form1());

XPO_how-to-implement-self-referenced-persistent-objects-and-display-them-within-the-e744/CS/CS/Form1.cs#L15

public Form1() {
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema);
    CreateDefaultData();

XPO_how-to-implement-a-calculated-property-aggregating-collection-items-e1477/CS/DetailCollectionChanged/Program.cs#L14

static void Main() {
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema);

XPO_how-to-make-user-friendly-object-identifiers-e825/CS/Program.cs#L17

static void Main(string[] args) {
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema);
    Do("A");

VB.NET

XPO_how-to-adjust-the-lookupedit-so-it-can-be-used-with-persistent-objects-e570/VB/Form1.vb#L99

Shared Sub Main()
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(DevExpress.Xpo.DB.AutoCreateOption.DatabaseAndSchema)
    Application.Run(New Form1())

XPO_how-to-display-a-complex-propertys-subproperties-in-data-bound-controls-e742/VB/Form1.vb#L205

Shared Sub Main()
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema)
    Application.Run(New Form1())

XPO_how-to-implement-self-referenced-persistent-objects-and-display-them-within-the-e744/VB/CS/Form1.vb#L17

Public Sub New()
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema)
    CreateDefaultData()

XPO_how-to-implement-a-calculated-property-aggregating-collection-items-e1477/VB/DetailCollectionChanged/Program.vb#L17

Shared Sub Main()
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema)

XPO_how-to-make-user-friendly-object-identifiers-e825/VB/Program.vb#L18

Shared Sub Main(ByVal args() As String)
    XpoDefault.DataLayer = XpoDefault.GetDataLayer(AutoCreateOption.DatabaseAndSchema)
    [Do]("A")