TextBox.ControlType property (Access)
You can use the ControlType property in Visual Basic to determine the type of control on a form or report. Read/write Byte.
expression A variable that represents a TextBox object.
The ControlType property setting is an intrinsic constant that specifies the control type. For a complete list of controls created by the CreateControl and CreateReportControl methods, see the AcControlType enumeration.
The ControlType property can only be set by using Visual Basic in form Design view or report Design view, but it can be read in all views.
The ControlType property is useful not only for checking for a specific control type in code, but also for changing the type of control to another type. For example, you can change a text box to a combo box by setting the ControlType property for the text box to acComboBox while in form Design view.
You can use the ControlType property to change characteristics of similar controls on a form according to certain conditions. For example, if you don't want users to edit existing data in text boxes, you can set the SpecialEffect property for all text boxes to Flat and set the form's AllowEdits property to No. (The SpecialEffect property doesn't affect whether data can be edited; it's used here to provide a visual cue that the control behavior has changed.)
The ControlType property is also used to specify the type of control to create when you are using the CreateControl method.
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 SpecialEffect property of the label control is set to Shadowed, and the SpecialEffect property of the text box control 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
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