After Delete Macro Event

The After Delete event occurs after a record is deleted.

Note

The After Delete event is available only in Data Macros.

Remarks

Use the After Delete event to perform any actions that you want to occur when a record is deleted. Common uses for the After Delete include enforcing business rules, workflows, updating an aggregate total, and sending notifications.

When the After Delete event occurs, the values contained in the deleted record are still available. You may want to use a deleted value to increment or decrement a total, create an audit trail, or compare to an existing value in a WhereCondition argument.

You can use the Updated("Field Name") function to determine whether a field has changed. The following code example shows how to use an If staement to determine determine whether the PaidInFull field has been changed.

 
If  Updated("PaidInFull")   Then 
 
    /* Perform actions based on changes to the field.   */ 
 
End If 
 

You can use access a value in the deleted record by using the following syntax.

[Old].[Field Name]

For example, to access the value of the QuantityInStock field in the deleted record, use the following syntax.

[Old].[QuantityInStock]

The values contained in the deleted record are deleted permanently when the After Delete event ends.

The following macro commands can be used in the After Delete event.

Command Type	Command
Program Flow	Comment Macro Statement
Program Flow	Group Macro Statement
Program Flow	If...Then...Else Macro Block
Data Block	CreateRecord Macro Action
Data Block	EditRecord Macro Action
Data Block	ForEachRecord Macro Action
Data Block	LookupRecord Data Block
Data Action	CancelRecordChange Macro Action
Data Action	ClearMacroError Macro Action
Data Action	DeleteRecord Macro Action
Data Action	ExitForEachRecord Macro Action
Data Action	LogEvent Macro Action
Data Action	OnError Macro Action
Data Action	RaiseError Macro Action
Data Action	RunDataMacro Macro Action
Data Action	SendEmail Macro Action
Data Action	SetField Macro Action
Data Action	SetLocalVar Macro Action
Data Action	StopAllMacros Macro Action
Data Action	StopMacro Macro Action

To create a Data Macro that captures the After Delete event, use the following steps.

1. Open the table for which you want to capture the After Delete event.

2. On the Table tab, in the After Events group, click After Delete.

An empty Data Macro is displayed in the macro designer.

Example

The following code example uses the After Delete event to perform some processing when a record is deleted from the Donations table. When a record is deleted, the amount of the donation is subracted form the DonationsReceived field in the DonationsReceived table and the TotalDonatedField in the Donors table.

Click here to view a copy of the macro that you can paste into Macro Designer.

To view this example in the macro designer, use the following steps.

1. Open the table for which you want to capture the After Delete event.

2. On the Table tab, in the After Events group, click After Delete.

3. Select the code listed below and then press CTRL+C to copy it to the Clipboard.

4. Activate the macro designer window and then press CTRL+V.

<?xml version="1.0" encoding="UTF-16" standalone="no"?> 
<DataMacros xmlns="https://schemas.microsoft.com/office/accessservices/2009/04/application"> 
  <DataMacro Event="AfterDelete"> 
    <Statements> 
      <Comment>Initialize a variable and assign the old</Comment> 
      <Action Name="SetLocalVar"> 
        <Argument Name="Name">varAmount</Argument> 
        <Argument Name="Value">[Old].[Amount]</Argument> 
      </Action> 
      <ConditionalBlock> 
        <If> 
          <Condition>Not (IsNull([Old].[CampaignID]))</Condition> 
          <Statements> 
            <ForEachRecord> 
              <Data> 
                <Reference>Campaigns</Reference> 
                <WhereCondition>[ID]=[Old].[CampaignID]</WhereCondition> 
              </Data> 
              <Statements> 
                <EditRecord> 
                  <Data /> 
                  <Statements> 
                    <Action Collapsed="true" Name="SetField"> 
                      <Argument Name="Field">[DonationsReceived]</Argument> 
                      <Argument Name="Value">[DonationsReceived]-[varAmount]</Argument> 
                    </Action> 
                  </Statements> 
                </EditRecord> 
              </Statements> 
            </ForEachRecord> 
          </Statements> 
        </If> 
      </ConditionalBlock> 
      <ConditionalBlock> 
        <If> 
          <Condition>Not (IsNull([Old].[DonorID]))</Condition> 
          <Statements> 
            <ForEachRecord> 
              <Data> 
                <Reference>Donors</Reference> 
                <WhereCondition>[ID]=[Old].[DonorID]</WhereCondition> 
              </Data> 
              <Statements> 
                <EditRecord> 
                  <Data /> 
                  <Statements> 
                    <Action Name="SetField"> 
                      <Argument Name="Field">[TotalDonated]</Argument> 
                      <Argument Name="Value">[TotalDonated]-[varAmount]</Argument> 
                    </Action> 
                  </Statements> 
                </EditRecord> 
              </Statements> 
            </ForEachRecord> 
          </Statements> 
        </If> 
      </ConditionalBlock> 
    </Statements> 
  </DataMacro> 
</DataMacros>
 
SetLocalVar 
                Name    varAmount 
          Expression   =[Old].[Amount] 
 
If   Not(IsNull([Old].[CampaignID]]))   Then 
 
     For Each Record In     Campaigns 
        Where Condition     =[ID]=[Old].[CampaignID] 
                  Alias 
        EditRecord 
                  Alias 
              SetField   ([DonationsReceived], [DonationsReceived] - [varAmount]) 
        End EditRecord 
 
End If 
 
If   Not(IsNull([Old].[DonorID]]))   Then 
 
     For Each Record In    Donors 
        Where Condition     =[ID]=[Old].[DonorID] 
                  Alias 
        EditRecord 
                  Alias 
 
          SetField 
                         Name   [TotalDonated] 
                        Value   =[TotalDonated]-[varAmount] 
        End EditRecord 
End If