string 为什么我不能将 ToUpper() 应用于 OwnerNode？

Why can't I apply ToUpper() to an OwnerNode?

提问by tkrn

This works:

这有效：

Output "Cluster Group: ""$($Group.Name)"", Current Owner: $($Group.OwnerNode), Current State: $($Group.State)"

This does not work:

这不起作用：

Output "Cluster Group: ""$($Group.Name)"", Current Owner: $($Group.OwnerNode.ToUpper()), Current State: $($Group.State)"

With an error of this:

有这样的错误：

Method invocation failed because [Microsoft.FailoverClusters.PowerShell.ClusterNode] doesn't contain a method named 'ToUpper'.

Any ideas on how to get this to string from the output of the Get-ClusterGroup string to upper case?

关于如何将其从 Get-ClusterGroup 字符串的输出转换为大写的任何想法？

回答by Shay Levy

ToUpper() is a string method and OwnerNode is probably not a string. Call the ToString() method before calling ToUpper().

ToUpper() 是一个字符串方法，而 OwnerNode 可能不是一个字符串。在调用 ToUpper() 之前调用 ToString() 方法。

$($Group.OwnerNode.ToString().ToUpper())

回答by Ansgar Wiechers

As Shay Levyalready explained, OwnerNodeis not a string and has thus not a method ToUpper(). You can call ToUpper()on its Nameproperty, though:

正如Shay Levy已经解释过的，OwnerNode不是字符串，因此也不是方法ToUpper()。不过，您可以调用ToUpper()它的Name属性：

$($Group.OwnerNode.Name.ToUpper())