[求助：]请问vb.net怎样全选模型空间的图形 然后判断是否为块
请问vb.net怎样全选模型空间的图形 然后判断是否为块回复
用过滤器
'获取当前活动文档的Editor对象
Dim ed As Editor = Application.DocumentManager.MdiActiveDocument.Editor
Dim db As Database = HostApplicationServices.WorkingDatabase
'定义过滤条件
Dim values() As TypedValue = {New TypedValue(DxfCode.Start, "INSERT")}
'建立过滤器
Dim sfilter As New SelectionFilter(values)
'返回选择集的用户提示类.
Dim resSel As PromptSelectionResult
resSel = ed.SelectAll(sfilter)
If resSel.StatusPromptStatus.OK Then
' 得到选择集中所有对象的ObjectId集合.
Dim ids As ObjectId() = resSel.Value.GetObjectIds()
End If
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