C＃中DirectCast的等价物是什么

Question

以下是使用DirectCast的示例VB.NET代码。我无法将其转换为C＃。

Dim arr As ArrayList
If ViewState("SelectedRecords") IsNot Nothing Then
    arr = DirectCast(ViewState("SelectedRecords"), ArrayList)
Else
    arr = New ArrayList()
End If

Answer 1

等效的C＃代码是

ArrayList arr = default(ArrayList);
if (ViewState["SelectedRecords"] != null) {
    arr = (ArrayList)ViewState["SelectedRecords"];
}
else {
    arr = new ArrayList();
}