我有以下 Wix 片段,它根据是安装还是卸载调用两个自定义操作之一:
<?xml version="1.0" encoding="UTF-8" ?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<?include $(sys.CURRENTDIR)\Config.wxi?>
<Fragment>
<CustomAction Id="caSetPropertyForInstall" Property="caRegisterDriver" Value="DeviceId=$(var.DriverId);DeviceName=$(var.ChooserName)" />
<CustomAction Id="caSetPropertyForUninstall" Property="caUnregisterDriver" Value="DeviceId=$(var.DriverId);DeviceName=$(var.ChooserName)" />
<Binary Id="DriverRegCA" SourceFile="$(var.ASCOM.Wix.CustomActions.TargetDir)\$(var.ASCOM.Wix.CustomActions.TargetName).CA.dll" />
<CustomAction Id="caRegisterDriver" BinaryKey="DriverRegCA" DllEntry="RegisterAscomDriver" Execute="deferred" Return="check" />
<CustomAction Id="caUnregisterDriver" BinaryKey="DriverRegCA" DllEntry="UnregisterAscomDriver" Execute="immediate" Return="ignore" />
<InstallExecuteSequence>
<Custom Action="caSetPropertyForInstall" Before="caRegisterDriver" />
<Custom Action="caSetPropertyForUninstall" Before="caUnregisterDriver" />
<!-- Execute during install -->
<Custom Action="caRegisterDriver" Before="InstallFinalize">NOT Installed</Custom>
<!-- Execute during uninstall -->
<Custom Action="caUnregisterDriver" Before="RemoveFiles">REMOVE ~= "ALL"</Custom>
</InstallExecuteSequence>
</Fragment>
</Wix>
安装 CA 按预期工作。我在操作 Id=caSetpropertyForInstall 中设置了一些属性,然后操作 caRegisterDriver 调用我的 C# 托管自定义操作。C# 代码查询自定义操作属性,如下所示:
var deviceId = session.CustomActionData["DeviceId"];
var deviceName = session.CustomActionData["DeviceName"];
Diagnostics.TraceInfo("Property DeviceId = [{0}]", deviceId);
Diagnostics.TraceInfo("Property DeviceName = [{0}]", deviceName);
无论是安装还是卸载,都使用相同的 C# 方法,并且如前所述,这在安装阶段有效。
我的问题是在卸载阶段,我收到一个异常:
1 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe ===== TiGra.Diagnostics 已初始化:默认 TraceLevel = 警告 ===== 2 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe ASCOM.Wix.CustomActions.CustomActions[信息]:开始 UnregisterAscomDriver 自定义操作 3 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe ASCOM.Wix.CustomActions.CustomActions[错误]:查询安装程序属性时出错 4 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe ASCOM.Wix.CustomActions.CustomActions[错误]: System.Collections.Generic.KeyNotFoundException: 给定的键不在字典中. 5 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 System.ThrowHelper.ThrowKeyNotFoundException() 6 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 System.Collections.Generic.Dictionary`2.get_Item(TKey 键) 7 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 Microsoft.Deployment.WindowsInstaller.CustomActionData.get_Item(字符串键) 8 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 ASCOM.Wix.CustomActions.CustomActions.CreateAscomDeviceFromSessionProperties(IInstallerPropertyProvider 会话) 9 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe ASCOM.Wix.CustomActions.CustomActions[错误]:UnregisterAscomDriver 失败:System.Collections.Generic.KeyNotFoundException:给定的密钥不存在在字典里。 10 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 System.ThrowHelper.ThrowKeyNotFoundException() 11 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 System.Collections.Generic.Dictionary`2.get_Item(TKey 键) 12 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 Microsoft.Deployment.WindowsInstaller.CustomActionData.get_Item(字符串键) 13 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 ASCOM.Wix.CustomActions.CustomActions.CreateAscomDeviceFromSessionProperties(IInstallerPropertyProvider 会话) 14 23/01/2013 03:07:37 7120 C:\Windows\SysWOW64\rundll32.exe 在 ASCOM.Wix.CustomActions.CustomActions.UnregisterAscomDriver(会话会话)
我看不出我处理安装和卸载的方式有什么不同,所以我很困惑为什么会这样。我错过了一些明显的东西吗?