ACC: Form Controls to Increment and Decrement a Date

MORE INFORMATION

The following example demonstrates how to create controls on a form that can be used to increment or decrement the displayed date:

1. Create a new form not based on any table or query and name it Date Selector.
2. Add the following unbound text box for the date value:
   

         Object: Text Box
         ----------------------
         Name: Call Date
         Format: General Date
         Default Value: =Date()
         Locked: Yes
         SpecialEffect: Sunken
   						

   
   NOTE: The Name property is called the ControlName property in Microsoft Access 1.0 and 1.1.
3. Add the following command buttons to change the date value:
   

         Object: Command Buttons
         -----------------------
         Name: Decrease
            Caption: <
            AutoRepeat: Yes
            OnClick: Change Date
         Name: Advance
            Caption: >
            AutoRepeat: Yes
            OnClick: Change Date
   						

   
   NOTE: The OnClick property is called the OnPush property in versions 1.0 and 1.1.
4. Create a macro to increase and decrease the date:
   

         Macro Name  Condition                                   Action
         ----------------------------------------------------------------
         Change Date Screen.ActiveControl.ControlName="Advance"  SetValue
                     ... GoToControl
                     ... GoToControl
                     Screen.ActiveControl.ControlName="Decrease" SetValue
                     ... GoToControl
                     ... GoToControl
   
         Change Date Actions
         --------------------------------------------------
         SetValue
            Item: Forms![Date Selector]![Call Date]
            Expression: Forms![Date Selector]![Call Date]+1
         GoToControl
            Control Name: [Call Date]
         GoToControl
            Control Name: [Advance]
         SetValue
            Item: Forms![Date Selector]![Call Date]
            Expression: Forms![Date Selector]![Call Date]-1
         GoToControl
            Control Name: [Call Date]
         GoToControl
            Control Name: [Decrease]
   						

   
   
5. Open the Date Selector form. The date will default to the computer's date. Click the > button to increase the date. Click the < button to decrease the date.

The date will continue to change while the button is depressed. Note that although the pointer can be moved into the Date text box with the TAB key, the date cannot be changed except by using the command buttons.