如何根据自定义操作中设置的属性安装功能？

问题描述

我试图根据应该在自定义操作中设置的值从两个功能中安装一个。

首先，我设置属性的值：

I am trying to install one from two features based on the value that should be set inside of the custom action.
Firstly, I set the value of a property:

UINT __stdcall ConfigurationCheckAction(MSIHANDLE hInstall)
{
    HRESULT hr = S_OK;
    UINT er = ERROR_INSTALL_FAILURE;

    hr = WcaInitialize(hInstall, "ConfigurationCheckAction");
    if (condition) {
         MsiSetProperty( hInstall, TEXT("STREAM"), TEXT("RED") );
    }
    else {
         MsiSetProperty( hInstall, TEXT("STREAM"), TEXT("BLUE") );
    }
    return WcaFinalize(er);
}

其次，我每两个特征取两个条件：

Secondly, I make two conditions per two features:

<Feature Id='Complete' Level='1'>
     <Feature Id="Red" ConfigurableDirectory="TARGETDIR" Title="F1" Level="0">
     <Condition Level="1">STREAM</Condition>
     </Feature>
     <Feature Id="Blue" ConfigurableDirectory="TARGETDIR" Title="F2" Level="0">
     <Condition Level="1">NOT STREAM</Condition>
     </Feature>
</Feature>

请注意，我之前并未在wxs文件中定义属性，因为我想设置

Note that I don't define property inside of the wxs file previously, as I would like to set it from the custom action.

在InstallInitialize和Execute立即执行之前调用我的自定义动作。

My custom action is called before InstallInitialize and Execute is immediate.

从安装日志我已经确认该属性已设置。
但是，我的条件安装无法正常工作，因为条件中的内容始终被评估为false。

From the installation log I have confirmation that the property is set.However, my conditional installation does not work, as it seems like what is in the condition is always evaluated as false.

我尝试评估条件：
STREAM，STREAM = RED，STREAM = RED，< ！[CDATA [STREAM = RED]]>

I tried evaluating conditions:STREAM, STREAM=RED, STREAM="RED", < ![CDATA[STREAM=RED]]>

我的想法已经用完了，希望得到帮助。

I am running out of ideas what to do and would appreciate help.

推荐答案

感谢您的答复。最后，您的建议的组合对我有所帮助。

Thank you for your replies. In the end, a combination of your suggestions helped me.

我想说明什么是有效的，什么是无效的：

I want to state what did and what did not work:

1. 没有必要使用默认值向WiX添加属性（以及添加此属性Secure ='yes'的属性）


2. 调用自定义在CostInitialize之前采取行动并不能单独解决问题，但我认为这是解决问题的因素之一。


3. 有条件的税率已通过以下方式纠正：
   
   a ）将条件放在CDATA内，并按建议在属性值中加上引号：< Condition><！[CDATA [STREAM = RED]]>< / Condition&
   
   b）反转条件级别，因此功能部件具有条件级别1，条件部件具有级别0。这意味着始终安装该功能部件，除非条件表达式为false。

1. Adding property to WiX with a default value was not necessary (as well with adding property of this property Secure='yes')
2. Calling custom action before CostInitialize did not solve the problem on its own, but I believe it was one of the factors that resolved an issue.
3. Conditional sintax was corrected by:
   a) Putting condition inside of CDATA and adding quotes to the value of property as suggested: <Condition><![CDATA[STREAM="RED"]]></Condition>
   b) Reversing condition levels so feature has condition level 1 and condition has level 0. This means that feature is always installed, unless the condition expression is false.

这篇关于如何根据自定义操作中设置的属性安装功能？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！