XafApplication.Connection Property

Specifies the connection to the database used by the application.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v24.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

[Browsable(false)]
public IDbConnection Connection { get; set; }

VB.NET

<Browsable(False)>
Public Property Connection As IDbConnection

Property Value

Type	Description
IDbConnection	A IDbConnection object representing an open connection to a data source.

Remarks

To set the appropriate connection, we recommend that you use the Application Designer‘s Connection section. Via this section, you can both set the required connection and specify the corresponding connection string. If you need to specify the Connection property in code, do it between the XafApplication object’s creation and setup:

C#

static void Main() {
   //...
   MySolutionWindowsFormsApplication application = new MySolutionWindowsFormsApplication();
   application.Connection = new OracleConnection(...);
   application.Setup();
   //...
}

VB.NET

Shared Sub Main()
   '...
   Dim _application As MySolutionWindowsFormsApplication = New MySolutionWindowsFormsApplication()
   _application.Connection = New OracleConnection(...)
   _application.Setup()
   '...
End Sub

By default, SQL connection is used.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Connection property.

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#

xaf-how-to-create-information-panels/CS/InfoPanels.Web/WebApplication.cs#L68

this.ApplicationName = "InfoPanels";
this.Connection = this.sqlConnection1;
this.Modules.Add(this.module1);

xaf-how-to-implement-a-custom-security-operation-that-can-be-permitted-at-the-type-level/CS/CustomSecurityOperation.Web/WebApplication.cs#L62

this.ApplicationName = "CustomSecurityOperation";
this.Connection = this.sqlConnection1;
this.Modules.Add(this.module1);

xaf-how-to-create-a-custom-action-with-a-custom-control-in-xaf-aspnet-application/CS/Solution28.Web/WebApplication.cs#L67

this.ApplicationName = "Solution28";
this.Connection = this.sqlConnection1;
this.Modules.Add(this.module1);

VB.NET

xaf-how-to-use-data-from-security-in-criterion/VB/CustomFunctionCriteriaOperator.Web/WebApplication.vb#L73

Me.ApplicationName = "CustomFunctionCriteriaOperator"
Me.Connection = Me.sqlConnection1
Me.Modules.Add(Me.module1)

xaf-how-to-create-information-panels/VB/InfoPanels.Web/WebApplication.vb#L59

Me.ApplicationName = "InfoPanels"
Me.Connection = Me.sqlConnection1
Me.Modules.Add(Me.module1)

xaf-how-to-implement-a-custom-security-operation-that-can-be-permitted-at-the-type-level/VB/CustomSecurityOperation.Web/WebApplication.vb#L63

Me.ApplicationName = "CustomSecurityOperation"
Me.Connection = Me.sqlConnection1
Me.Modules.Add(Me.module1)

xaf-how-to-create-a-custom-action-with-a-custom-control-in-xaf-aspnet-application/VB/Solution28.Web/WebApplication.vb#L61

Me.ApplicationName = "Solution28"
Me.Connection = Me.sqlConnection1
Me.Modules.Add(Me.module1)