vb.net arcobjects determine whether arcmap is in editing session

Question

I have a vb.net arcmap addin which provide a function to validate geodb topology. But there is a problem, when I am not in editing session and use the function, arcmap will crash. In this case I intend to check whether the map is in editing session.

Is there a way to check whether arcmap is in editing session?

I am using vb.net and arcmap 10.2.

Answer 1

You can check for the EditState on the editor extension.

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• ppLily: Thanks Jay, It works! I have put my code below in case it is useful.

Answer 2

After Jay's help, I have successfully check when arcmap is in editing session, the code is as floows:

 Dim editorUid As New UID()
 editorUid.Value = "esriEditor.Editor"
 m_editor = TryCast(My.ArcMap.Application.FindExtensionByCLSID(editorUid), IEditor3)
 m_editEvents = TryCast(m_editor, IEditEvents_Event)
 If m_editor.EditState = esriEditState.esriStateNotEditing Then
 MsgBox("You must in editing session to validate the topology")
 End If

• JC5577: I'm not familiar with the VB AddIn's but for CSharp, the first 3 lines are duplicate what is in the ArcMap class (internal static class found in your AddIn's namespace), which already exposes an IEditor for AddIn editor extensions.