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ColumnHidden Property
You can use the ColumnHidden property to show or hide a specified column in Datasheet View.
Datasheet view:
For example, you might want to hide a CustomerAddress field that's too wide so you can view the CustomerName and PhoneNumber fields.
Note: The ColumnHidden property applies to all fields in Datasheet view and to form controls when the form is in Datasheet view.
Setting:
You can set the ColumnHidden property by clicking Hide Columns or Unhide Columns on the Format menu in Datasheet view.
Visible Property
The Visible property has no effect on a column in Datasheet view. To specify whether a column is visible in Datasheet view, you use the ColumnHidden property.
From Access Help Files
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