https://forums.autodesk.com/t5/vba-forum/msflexgrid-control/m-p/1215728#M47281 MSDN help says that [ColIsVisible] property: ... Returns or sets a value indicating whether a specified column is currently visible. Syntax object.ColIsVisible(index) [=Boolean] ... But when I'm trying to SET a value to a visible column to be not visible (False) I'm getting this error message. "Assignment to constant not permited" The MSDN help says that I'm trying to set a value to a readonly property. The column index is a valid number, by the way. Tue, 04 Jan 2005 19:52:20 GMT Anonymous 2005-01-04T19:52:20Z https://forums.autodesk.com/t5/vba-forum/msflexgrid-control/m-p/1215728#M47281 MSDN help says that [ColIsVisible] property: ... Returns or sets a value indicating whether a specified column is currently visible. Syntax object.ColIsVisible(index) [=Boolean] ... But when I'm trying to SET a value to a visible column to be not visible (False) I'm getting this error message. "Assignment to constant not permited" The MSDN help says that I'm trying to set a value to a readonly property. The column index is a valid number, by the way. Tue, 04 Jan 2005 19:52:20 GMT https://forums.autodesk.com/t5/vba-forum/msflexgrid-control/m-p/1215728#M47281 Anonymous 2005-01-04T19:52:20Z https://forums.autodesk.com/t5/vba-forum/msflexgrid-control/m-p/1215729#M47282 Microsoft web help solve my problem. It says: Returns a value indicating whether a specified column is visible currently. A column is not visible when it is outside the client area of the control's window - in other words, when it is scrolled out of view. So I was misusing this property confusing with column-hide/show, desired, properties "vbTorture" <VB> wrote in message news:41daf3f4$1_2@newsprd01... &gt; MSDN help says that [ColIsVisible] property: &gt; ... &gt; Returns or sets a value indicating whether a specified column is currently &gt; visible. &gt; Syntax &gt; &gt; object.ColIsVisible(index) [=Boolean] &gt; &gt; ... &gt; &gt; But when I'm trying to SET a value to a visible column to be not visible &gt; (False) I'm getting this error message. &gt; "Assignment to constant not permited" &gt; The MSDN help says that I'm trying to set a value to a readonly property. &gt; The column index is a valid number, by the way. &gt; &gt;</VB> Tue, 04 Jan 2005 20:55:48 GMT https://forums.autodesk.com/t5/vba-forum/msflexgrid-control/m-p/1215729#M47282 Anonymous 2005-01-04T20:55:48Z