Question

I have a table with a varbinary(MAX) parameter. After executing the query, I will store the result in SqlDataReader as it has multiple columns as output.

SqlCommand cmd = new SqlCommand("select leave_details from LeaveTable");
SqlDataReader obj;
con.Open();
obj = cmd.ExecuteReader();

Now I want to convert the result for each row into byte[].

This one is not working:

byte[] b=null;
obj.GetBytes(0,0,b,0,1024);

Answer 1

Try GetValue() method.

byte[] b=null;
b=(byte [])obj.GetValue(0);
//OR
b=(byte [])obj[0];