C＃string.GetHashCode（）返回非int結果

我的一個客戶有一個應用程序崩潰，我跟蹤它，因爲這個錯誤/功能我不能真正解釋。
WindowsIdentity.GetCurrent（）。Name.GetHashCode（）返回下面的字符串： - ？2097695743
是的，那是一個負號，一個空格，一個問號，然後是實際的散列號。C＃string.GetHashCode（）返回非int結果

這是一個簡單的控制檯應用程序的代碼，顯示怪異的行爲。

static void Main(string[] args) 
{ 
    Console.WriteLine("From String: string name = WindowsIdentity.GetCurrent().Name");    
    string name = WindowsIdentity.GetCurrent().Name; 
    Console.WriteLine("name:       " + name); 
    Console.WriteLine("name.GetHashCode().GetType(): " + name.GetHashCode().GetType()); 
    Console.WriteLine("name.GetHashCode():    " + name.GetHashCode()); 
    Console.WriteLine("name.GetHashCode().ToString(): " + name.GetHashCode().ToString()); 
    Console.WriteLine(); 
    Console.WriteLine(); 
    Console.WriteLine("Direct"); 
    Console.WriteLine("WindowsIdentity.GetCurrent().Name:       " + WindowsIdentity.GetCurrent().Name); 
    Console.WriteLine("WindowsIdentity.GetCurrent().Name.GetHashCode().GetType(): " + WindowsIdentity.GetCurrent().Name.GetHashCode().GetType()); 
    Console.WriteLine("WindowsIdentity.GetCurrent().Name.GetHashCode():    " + WindowsIdentity.GetCurrent().Name.GetHashCode()); 
    Console.WriteLine("WindowsIdentity.GetCurrent().Name.GetHashCode().ToString(): " + WindowsIdentity.GetCurrent().Name.GetHashCode().ToString()); 
    Console.WriteLine(); 
    Console.WriteLine(); 
    Console.WriteLine("Press Enter to continue"); 
    Console.ReadLine(); 
}

這是文本輸出：

From String: string name = WindowsIdentity.GetCurrent().Name 
name:       COMMARC\tje 
name.GetHashCode().GetType(): System.Int32 
name.GetHashCode():    - ?2097695743 
name.GetHashCode().ToString(): - ?2097695743 

Direct 
WindowsIdentity.GetCurrent().Name:       COMMARC\tje 
WindowsIdentity.GetCurrent().Name.GetHashCode().GetType(): System.Int32 
WindowsIdentity.GetCurrent().Name.GetHashCode():    - ?2097695743 
WindowsIdentity.GetCurrent().Name.GetHashCode().ToString(): - ?2097695743 


Press Enter to continue

這是相同輸出的圖片：

Weird GetHashCode return value