how to fill List(Of Type)?

问题

I'm trying to validate a multidimensional array of inputs. I need to verify data types before they're sent to a prepared statement.

I'm making a Function that can be used to check data types of a multidimensional array received from a WebMethod ajax call, taking a multidimensional array as a parameter and a list of Types as another to check the columns against.

I'm trying to do, for example,

Dim columnTypes = New List(Of Type) from {Integer, Integer, String, String}

but Visual Studio 2010 keeps reporting '.' expected.

How can this be done properly?

回答1:

Type literals needs to be wrapped into GetType:

Dim columnTypes = New List(Of Type) From {GetType(Integer), GetType(Integer),
                                          GetType(String), GetType(String)}

来源：https://stackoverflow.com/questions/17557512/how-to-fill-listof-type