维克斯。取消安装时回滚自定义操作

Question

我有一个自定义操作

<CustomAction Id="myActionId" BinaryKey="myAction" DllEntry="MySimpleAction" Execute="immediate" Return="check" />

<InstallExecuteSequence>
      <Custom Action="myActionId" After="InstallInitialize">CHECKBOXCOPYPROP=1</Custom>
</InstallExecuteSequence>

我的自定义操作会备份和解析数据库。取消安装时我需要回滚(删除数据库)。我做了:

<CustomAction Id="myActionId" BinaryKey="myAction" DllEntry="MySimpleAction" Execute="immediate" Return="check" />
<CustomAction Id="myActionRollbackId" BinaryKey="myActionRollback" DllEntry="MySimpleAction" Execute="rollback" Return="check" />

<InstallExecuteSequence>
      <Custom Action="myActionId" After="InstallInitialize">CHECKBOXCOPYPROP=1</Custom>
      <Custom Action="myActionRollbackId" Before="myActionId">CHECKBOXCOPYPROP=1</Custom>
</InstallExecuteSequence>

但是我遇到了错误。

如果我这样做:

<CustomAction Id="myActionId" BinaryKey="myAction" DllEntry="MySimpleAction" Execute="immediate" Return="check" />
<CustomAction Id="myActionRollbackId" BinaryKey="myActionRollback" DllEntry="MySimpleAction" Execute="immediate" Return="check" />

<InstallExecuteSequence>
      <Custom Action="myActionId" After="InstallInitialize">CHECKBOXCOPYPROP=1</Custom>
      <Custom Action="myActionRollbackId" After="myActionId">CHECKBOXCOPYPROP=1</Custom>
</InstallExecuteSequence>

我的自定义操作 myActionRollbackId 有效。

取消安装后如何运行回滚？有人可以帮助我吗？

Answer 1

应推迟在安装时运行并对数据库执行某些操作的自定义操作 (Execute='deferred')。其对应的回滚操作应该是Execute='rollback'。当您安排这些自定义操作时，应首先执行回滚操作。

此外，请确保条件设置正确。