Check the editor type

The editor type can be obtained from the EditorType property of the IEditor object. The interface in parentheses is derived from IEditor.

• "DocumentForm" ... Document form (IForm)
• "TreeGrid" ... Tree grid (ITreeGrid)
• "ERDiagram" ... ER diagram (IDiagram)
• "TreeDiagram" ... Tree diagram (IDiagram)
• "SequenceDiagram" ... Sequence diagram (ISequenceDiagram)
• "Custom" ... Custom editor (ICustomEditor)

public void GetEditor(ICommandContext c, ICommandParams p)
{
    IEditor editor = c.App.Workspace.CurrentEditor;

    //Output the editor type
    c.App.Output.WriteLine("sample", $"EditorType: {editor.EditorType} , ViewDefinitionName: {editor.ViewDefinitionName}");

    //You can also check the IEditor entity interface to determine this.
    if (editor is IDiagram diagram)
    {
        c.App.Output.WriteLine("sample", "It's a diagram"); ​​
}
}