SP Field.Hidden property not hiding?

Question

I have set the property .Hidden of one field to $true.

$field=$List.Fields.GetByTitle("Business Phone")
$ctx.ExecuteQuery()
$field.Hidden=$true

The change has been applied successfully and if I check that property $field.Hidden shows $true.

The result is that when I am trying to add a new item to my list, the field is not shown, which is expected and desired, but it still exists in the default view and I can add it to a new view.
According to MSDN description "If TRUE, the field is completely hidden from the user interface. Setting ReadOnly to TRUE means the field is not displayed in New or Edit forms but can still be included in views."

• Not a required field. It is one of the default fields that comes with a contact list but it is not a required one.
• Name is correct. It is certainly this column, not another one with similar name/internal name, that I am updating. Other changes (like description) are visible in GUI.

Answer 1

You can control the field display by using other properties for each form (new, edit and display form). You can overwrite them by using this code :

$field=$List.Fields.GetByTitle("Business Phone")
$ctx.ExecuteQuery()
$field.SetShowInDisplayForm($false)
$field.SetShowInEditForm($false)
$field.SetShowInNewForm($false)

$Context.ExecuteQuery();

Don't forget to launch the ExecuteQuery method.

Answer 2

Please verify following:

1) Go to List Settings > Advanced Settings:

2) Select Yes on Allow management of content types?

3) Click on one of the existing content types under the Content Type section

4)Next, click on the column you intend to hide and check if following setting is enabled.