小编ken*_*nai的帖子

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>

但我有一个错误。

如果我喜欢这样：

<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。

取消安装时如何运行回滚？有人可以帮助我吗？