如何根据财产价值安装功能 [英] How to install features depending on the value of property

问题描述

我有一个可以等于以下两个值之一的注册表项:特殊值 或 null.和两个特点.

I have a registry key that can be equal to one of two values: special value or null. And two features.

当我的注册表项等于特殊值时，安装程​​序必须安装第一个功能.如果注册表搜索未找到注册表项，则安装程序必须安装第二个功能.如果注册表项具有 null 值，则安装程序不得安装这两个功能中的任何一个.

When my registry key equals to special value the installer has to install first feature. if registry key is not found by registry search the installer has to install second feature. And if registry key has null value the installer must not install any of these two features.

我在做什么或理解错了?如果 INSTALLLEVEL=5, SPECIALVALUE="special",MYTREAT="1" 必须安装第一个功能，但在这种情况下安装程序不会同时安装这两个功能.

What I'm doing or understanding wrong? If INSTALLLEVEL=5, SPECIALVALUE="special",MYTREAT="1" the first feature must be installed,but the installer doesn't install both of the features in this case.

<Feature Id="MyFeatures" Level="1" ConfigurableDirectory='INSTALLLOCATION' Display='expand' AllowAdvertise='no'>

  <ComponentRef Id='Empty'/>

  <Feature Id='First' Level='3' AllowAdvertise='no' ConfigurableDirectory='INSTALLLOCATION'>
    <Condition Level="0">INSTALLLEVEL=4 OR (MYTREAT="1" AND NOT SPECIALVALUE AND NOT SPECIALVALUE="")</Condition>
    <Condition Level="1">SPECIALVALUE="special" AND MYTREAT="1"</Condition>
    <ComponentRef Id="first_comp"/>                 
  </Feature>

  <Feature Id="Second" Level="4" AllowAdvertise="no" ConfigurableDirectory="INSTALLLOCATION">
    <Condition Level="0">INSTALLLEVEL=3 OR (MYTREAT="1" AND SPECIALVALUE)</Condition>
    <ComponentRef Id="second_comp"/>
  </Feature>

</Feature>

我已经修改了我的代码，但它仍然无法正常工作.条件有问题.注册表项中有一个特殊值，但安装程序仍在跳过第一个功能.我发现只有MYTREAT=1"的条件不起作用.但是在日志中，客户端正在将具有此值的 MYTREAT 属性发送到服务器.. INSTALLLEVEL 为 1. MYTREAT 属性是用按钮控件初始化的，这可能是我的麻烦吗?这里是新代码:

I had modified my code, but it's still not working right. Problem with conditions. There is a special value in registry key, but the installer is still skipping first feature. I had found that condition with just "MYTREAT=1" is not working. But in logs the client side is sending MYTREAT property with this value to the server.. INSTALLLEVEL is 1. MYTREAT property is initialized with pushbutton control,may be here is my trouble? Here new code:

     <Feature Id="Myfeatures" Level="3"
            ConfigurableDirectory='INSTALLLOCATION'
            Display='expand' AllowAdvertise='no'>
                <Condition Level='1'>MYTREAT="1"</Condition>
                <ComponentRef Id='Empty'/>
                <Feature Id='First' Level='3' AllowAdvertise='no'
                    ConfigurableDirectory='INSTALLLOCATION'> <!--Must be installed by default,default value of INSTALLLEVEL is 3-->
                        <Condition Level="1">MYTREAT="1" AND SPECIALVALUE="SPECIAL"</Condition>
                        <ComponentRef Id="first_comp"/>                 
                </Feature>
                <Feature Id="Second" Level="10" AllowAdvertise="no"
                    ConfigurableDirectory="INSTALLLOCATION"><!---->
                            <Condition Level="1">(MYTREAT="1" AND NOT SPECIALVALUE)</Condition>
                            <ComponentRef Id="second_comp"/>                    
                </Feature>
        </Feature>

                     ............
<Dialog Id="TreatDlg" Width="260" Height="85">    
<Control Id="Mytreat" Type="PushButton" X="50" Y="57" Width="56" Height="17" Property="MYTREAT">
       <Publish Property="MYTREAT" Value="1">1</Publish>
       <Publish Event="NewDialog" Value="VerifyReadyDlg">1</Publish>
    </Control>

P.S. 我默认使用 1 初始化 MYTREAT，并且正确评估了条件.为什么我不能在功能条件下使用控件的属性?以及如何解决我的问题！请任何帮助！

P.S. I initialized MYTREAT with 1 by default and condition was evaluated correctly. Why I cannot use control's property in feature's condition? And how to resolve my problem!Please any help!

推荐答案

一个常见的错误是试图通过 INSTALLLEVEL 属性来控制功能.安装级别应该是静态的，您不应该在安装过程中更改它.

A common mistake is trying to control features through INSTALLLEVEL property. The install level should be static, you shouldn't change it during install.

INSTALLLEVEL 值被视为不再安装功能的级别.例如，如果 INSTALLLEVEL = 5，将安装级别为 4 的功能，而不会安装级别为 6 的功能.

The INSTALLLEVEL value is considered a level above which features are no longer installed. For example, if INSTALLLEVEL = 5 a feature with Level 4 will be installed and a feature with Level 6 will not be installed.

通过INSTALLLEVEL可以控制原始特征状态，例如:

Through INSTALLLEVEL you can control the original feature state, for example:

<Feature Id="MyFeatures" Level="4" ConfigurableDirectory='INSTALLLOCATION' Display='expand' AllowAdvertise='no'>

  <!-- Feature is not installed by default -->
  <Feature Id='First' Level='6' AllowAdvertise='no' ConfigurableDirectory='INSTALLLOCATION'/>

  <!-- Feature is installed by default -->
  <Feature Id="Second" Level="4" AllowAdvertise="no" ConfigurableDirectory="INSTALLLOCATION"/>    

</Feature>

对于上述配置，您可以通过设置低于或高于 INSTALLLEVEL 的级别来添加安装条件:

For the above configuration you can then add install conditions by setting a Level lower or higher than INSTALLLEVEL:

<Feature Id="MyFeatures" Level="4" ConfigurableDirectory='INSTALLLOCATION' Display='expand' AllowAdvertise='no'>

  <Feature Id='First' Level='6' AllowAdvertise='no' ConfigurableDirectory='INSTALLLOCATION'>
    <Condition Level="4">(MYTREAT="1") AND (SPECIALVALUE="special")</Condition>         
  </Feature>

  <Feature Id="Second" Level="4" AllowAdvertise="no" ConfigurableDirectory="INSTALLLOCATION">
    <Condition Level="6">(INSTALLLEVEL = 3) OR (MYTREAT="1" AND SPECIALVALUE)</Condition>
  </Feature>

</Feature>

如您所见，要素级别属性围绕 INSTALLLEVEL，而不是相反.

As you can see, the feature Level attributes revolve around INSTALLLEVEL, not the other way around.

在显示任何安装对话框之前评估功能条件.因此，您不能使用对话框控件(例如复选框或按钮)来调节功能.

Feature conditions are evaluated before any installation dialogs are shown. So you cannot condition a feature with a dialog control (for example a checkbox or a button).

一种解决方案是使用自定义操作，该操作根据您的自定义属性修改功能操作.例如，您可以使用 MsiSetFeatureState 函数.您可以在此处找到自定义操作教程:http://www.codeproject.com/KB/install/msicustomaction.aspx

A solution would be to use a custom action which modifies the feature action based on your custom property. For example you can use MsiSetFeatureState function. You can find a custom action tutorial here: http://www.codeproject.com/KB/install/msicustomaction.aspx

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