VB.NET相当于C＃“As”

C＃ As关键字的VB.NET中的等效内容如下所示？

var x = y as String; if (x == null) ... 

Answer 1

这是TryCast：

 Dim x As String = TryCast(y, String) If x Is Nothing Then ... 

Answer 2

Trycast就是你要找的东西。

 Dim x = TryCast(y, String) 

Answer 3

TryCast：

 Dim x = TryCast(y, String) if (x Is Nothing) ... 

Answer 4

Dim x = TryCast（y，[String]）

Answer 5

干得好：

C＃代码：

 var x = y as String; if (x == null) ... 

VB.NET等效：

 Dim x = TryCast(y, String) If (x Is Nothing) ... 

Answer 6

 Dim x = TryCast(y, [String]) 

来自： http : //www.developerfusion.com/tools/convert/csharp-to-vb/