AllowDeletions Property [Access 2003 VBA Language Reference]
You can use the AllowDeletions property to specify whether a user can delete a record when using a form. Read/write Boolean.
expression Required. An expression that returns one of the objects in the Applies To list.
The AllowDeletions property uses the following settings.
|Yes||True||(Default) The user can delete records.|
|No||False||The user can't delete records.|
You can set this property to No to allow users to view and edit existing records but not to delete them. When AllowDeletions is set to Yes, records may be deleted so long as existing referential integrity rules aren't broken.
If you want to prevent changes to existing records (make a form read-only), set the AllowAdditions , AllowDeletions, and AllowEdits properties to No. You can also make records read-only by setting the RecordsetType property to Snapshot.
When the AllowDeletions property is set to No, the Delete Record command on the Edit menu isn't available.
Note When the Data Mode argument of the OpenForm action is set, Microsoft Access will override a number of form property settings. If the Data Mode argument of the OpenForm action is set to Edit, Microsoft Access will open the form with the following property settings:
AllowEdits — Yes
AllowDeletions — Yes
AllowAdditions — Yes
DataEntry — No
To prevent the OpenForm action from overriding any of these existing property settings, omit the Data Mode argument setting so that Microsoft Access will use the property settings defined by the form.
The following example examines the ControlType property for all controls on a form. For each label and text box control, the procedure toggles the SpecialEffect property for those controls. When the label controls' SpecialEffect property is set to Shadowed and the text box controls' SpecialEffect property is set to Normal and the AllowAdditions, AllowDeletions, and AllowEdits properties are all set to True, the
intCanEdit variable is toggled to allow editing of the underlying data.
Sub ToggleControl(frm As Form) Dim ctl As Control Dim intI As Integer, intCanEdit As Integer Const conTransparent = 0 Const conWhite = 16777215 For Each ctl in frm.Controls With ctl Select Case .ControlType Case acLabel If .SpecialEffect = acEffectShadow Then .SpecialEffect = acEffectNormal .BorderStyle = conTransparent intCanEdit = True Else .SpecialEffect = acEffectShadow intCanEdit = False End If Case acTextBox If .SpecialEffect = acEffectNormal Then .SpecialEffect = acEffectSunken .BackColor = conWhite Else .SpecialEffect = acEffectNormal .BackColor = frm.Detail.BackColor End If End Select End With Next ctl If intCanEdit = IFalse Then With frm .AllowAdditions = False .AllowDeletions = False .AllowEdits = False End With Else With frm .AllowAdditions = True .AllowDeletions = True .AllowEdits = True End With End If End Sub
Applies to | Form Object