使用自定义操作读取MSI的目录表

Question

I have a managed code custom action which uses the following code to read a custom table.

var Configfolder = session.Database.OpenView(session.Database.Tables["ProtectedConfigFolders"].SqlSelectString);

This works how ever when I try and read the directory table in the same way

var dirview = session.Database.OpenView(session.Database.Tables["Directory"].SqlSelectString);

I get

exception of type 'Microsoft.Deployment.WindowsInstaller.BadQuerySyntaxException' occurred in Microsoft.Deployment.WindowsInstaller.dll.

Answer 1

如果您的自定义操作是在CostFinalize之后执行的，则只需将它们视为MSI属性即可引用目录表值（即，以与在自定义操作中获取“ ProductVersion”或“ ProductName”相同的方式获取目录）。