Question

I have sql data type image to store the state of the webparts but in .Net it is Byte[]. How do I convert Byte[] to sql image for insert and other operations.

Answer 1

Just specify Binary as the parameter type, it’s value can be a byte[]

byte[] data; // wherever this comes from

using (SqlCommand command = new SqlCommand())
{
    command.Connection = connection;
    command.CommandText = "INSERT INTO BinaryTable (BinaryData) VALUES (@BinaryData)";

    SqlParameter param = new SqlParameter("@BinaryData", SqlDbType.Binary);
    param.Value = data;

    command.Parameters.Add(param);
    command.ExecuteNonQuery();
}

Edit: Also worth noting is that if you are using SQL Server 2005/2008, then you should use VARBINARY(MAX) instead of IMAGE since the latter is deprecrated.