小编Joh*_*nes的帖子

至于我的理解,写作(单元)可测试代码的一部分,构造函数不应该在构造函数中做真正的工作而只分配字段.到目前为止,这非常有效.但我遇到了一个问题,我不确定解决问题的最佳方法是什么.请参阅下面的代码示例.

class SomeClass
{
    private IClassWithEvent classWithEvent;

    public SomeClass(IClassWithEvent classWithEvent)
    {
        this.classWithEvent = classWithEvent;

        // (1) attach event handler in ctor.
        this.classWithEvent.Event += OnEvent;
    }

    public void ActivateEventHandling()
    {
        // (2) attach event handler in method
        this.classWithEvent.Event += OnEvent;
    }

    private void OnEvent(object sender, EventArgs args)
    {
    }
}

对我来说选项(1)听起来不错,但构造函数应该只分配字段.选项(2)感觉有点"太多".

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我希望我的MSI包将值InstallLocation写入HKEY_LOCAL_MACHINE\SOFTWARE\\(Wow6432Node)\Microsoft\Windows\CurrentVersion\Uninstall\\(GUID).您还应该在"添加/删除程序"控制面板(列Location)中看到此值.

要通过WiX设置此值,我读到应该通过自定义操作设置属性ARPINSTALLLOCATION.我减少<Product>到最低限度.这是它的样子:

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
     xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">
  <Product Id="*" 
           Name="MyApplication"
           Language="1033" 
           Version="!(bind.FileVersion.MyApplication.exe)" 
           Manufacturer="Me"
           UpgradeCode="db37f5dc-68c5-46ee-bbdf-704ff68b70db">
    <Package InstallerVersion="400" Compressed="yes" InstallScope="perMachine" Languages="0" />
    <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />

    <!-- use SetProperty as suggested by Rolo -->
    <SetProperty Id="ARPINSTALLLOCATION" Value="[INSTALLDIR]" After="CostFinalize" />
    <Feature Id="ProductFeature" Title="MyApplication" Level="1">
      <ComponentGroupRef Id="MyApplication.Files.AllRequired" />
    </Feature>
  </Product>
  <Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
      <Directory Id="ProgramFilesFolder">
        <Directory Id="INSTALLDIR" Name="MyApplication" />
      </Directory>
    </Directory>
  </Fragment>
  <Fragment>
    <ComponentGroup Id="MyApplication.Files.AllRequired">
      <Component …