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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.

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2 Answers 2

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You can check for the EditState on the editor extension.

enter image description here

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  • Thanks Jay, It works! I have put my code below in case it is useful.
    – ppLily
    Commented Sep 9, 2014 at 3:06
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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
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    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.
    – Jay Cummins
    Commented Sep 9, 2014 at 12:21

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