C # how to submit table-valued parameter binary data?-CodePudding

Stored procedure by table-valued parameters submitted to the database commands,

 DataTable table=new ();//in c # to build table-valued parameter 
Table. The Columns. The Add (new DataColumn (" key ", typeof (binary)));//this way how the type of binary expression? 
Table. The Columns. The Add (new DataColumn (" address ", typeof (string)));

 when fill the table foreach (var members assembled in) 
{
DataRow line=table. NewRow (); 
Line [0]=???????//members. The key is to a byte [32] types of data, how to convert it to a 256 - bit binary number? 
Line [1]=members. Address; 
Table Rows. The Add (line); 
}

will eventually become into such a TABLE in the SQL type

 CREATE TABLE [dbo] [TABLE] (
[key] [binary] (256), NULL, 
[address]] to [char] (40) NULL 
)