Creating add-ins in Visual Basic.Net

In This Topic

Writing an add-in in Visual Basic.Net basically works exactly like already describes under the topic"Creating add-ins in CSharp". The only difference is the source code syntax and how to call the compiler.

Create a file VBAddInModule.vb with the following contents:

VB	Copy Code
Public Class AddInModule Implements Eplan.EplApi.ApplicationFramework.IEplAddIn Public Function OnRegister(ByRef bLoadOnStart As System.Boolean) As Boolean _ Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnRegister bLoadOnStart = True Return True End Function 'OnRegister Public Function OnUnregister() As Boolean _ Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnUnregister Return True End Function 'OnUnregister Public Function OnInit() As Boolean _ Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnInit Return True End Function 'OnInit Public Function OnInitGui() As Boolean _ Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnInitGui Return True End Function 'OnInitGui Public Function OnExit() As Boolean _ Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnExit Return True End Function 'OnExit End Class 'AddInModule

Copy Code

Public Class AddInModule
   Implements Eplan.EplApi.ApplicationFramework.IEplAddIn

   Public Function OnRegister(ByRef bLoadOnStart As System.Boolean) As Boolean _
     Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnRegister
      bLoadOnStart = True
      Return True
   End Function 'OnRegister

   Public Function OnUnregister() As Boolean _
    Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnUnregister
      Return True
   End Function 'OnUnregister

   Public Function OnInit() As Boolean _
    Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnInit
      Return True
   End Function 'OnInit

   Public Function OnInitGui() As Boolean _
    Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnInitGui
      Return True
   End Function 'OnInitGui

   Public Function OnExit() As Boolean _
    Implements Eplan.EplApi.ApplicationFramework.IEplAddIn.OnExit
      Return True
   End Function 'OnExit
End Class 'AddInModule

Invoke the Visual Basic compiler (vbc.exe) with the following parameters:

vbc /target:library /reference:..\..\..\..\bin\Eplan.EplApi.AFu.dll /out:SimpleVBAddIn.dll VBAddinModule.vb

For an action create the following source file and save it as SimpleVBAction.cs in your source directory. To create an action, we need a class, which implements the IEplAction interface. For a more detailed explanation, see the Actions topic.

VB	Copy Code
Imports Eplan.EplApi.ApplicationFramework Public Class VBAction Implements IEplAction Public Function Execute(ctx As ActionCallingContext) As Boolean Implements IEplAction.Execute Dim dec As Decider = New Decider dec.Decide(EnumDecisionType.eOkDecision, "VBAction was called!", "", EnumDecisionReturn.eOK, EnumDecisionReturn.eOK) Return True End Function 'Execute Public Function OnRegister(ByRef Name As String, ByRef Ordinal As Integer) As Boolean _ Implements IEplAction.OnRegister Name = "VBAction" Ordinal = 20 Return True End Function 'OnRegister Public Sub GetActionProperties(ByRef actionProperties As ActionProperties) _ Implements IEplAction.GetActionProperties actionProperties.Description = "Action test with parameters." End Sub 'GetActionProperties End Class 'VBAction

Copy Code

Imports Eplan.EplApi.ApplicationFramework

Public Class VBAction
   Implements IEplAction
   Public Function Execute(ctx As ActionCallingContext) As Boolean Implements IEplAction.Execute
      Dim dec As Decider = New Decider
      dec.Decide(EnumDecisionType.eOkDecision, "VBAction was called!", "", EnumDecisionReturn.eOK, EnumDecisionReturn.eOK)
      Return True
   End Function 'Execute

   Public Function OnRegister(ByRef Name As String, ByRef Ordinal As Integer) As Boolean _
    Implements IEplAction.OnRegister
      Name = "VBAction"
      Ordinal = 20
      Return True
   End Function 'OnRegister

   Public Sub GetActionProperties(ByRef actionProperties As ActionProperties) _
    Implements IEplAction.GetActionProperties
      actionProperties.Description = "Action test with parameters."
   End Sub 'GetActionProperties
End Class 'VBAction

vbc /target:library /reference:..\..\..\..\bin\Eplan.EplApi.AFu.dll /reference:..\..\..\..\bin\Eplan.EplApi.Baseu.dll /out:SimpleVBAddIn.dll VBAddinModule.vb SimpleVBAction.vb

Send Feedback