/// 將文件流寫入數據庫
/// </summary>
/// <param name="filePath">存入數據庫文件的路徑</param>
/// <param name="id">數據庫中插入文件的行標示符ID</param>
/// <returns></returns>
public int UploadFile(string filePath, string id)
{
byte[] buffer = null;
int result = 0;
if (!string.IsNullOrEmpty(filePath))
{
String file = HttpContext.Current.Server.MapPath(filePath);
buffer = File.ReadAllBytes(file);
using (SqlConnection conn = new SqlConnection(DBOperator.ConnString))
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "update DomesticCompanyManage_Main_T set ZBDocumentFile = @fileContents where MainID ='" + id + "'";;
cmd.Parameters.AddRange(new[]{
new SqlParameter("@fileContents",buffer)
});
conn.Open();
result = cmd.ExecuteNonQuery();
conn.Close();
}
}
return result;
}
else
return 0;
}

//從數據庫中讀取文件流
//shipmain.Rows[0]["ZBDocument"],文件的完整路徑
//shipmain.Rows[0]["ZBDocumentFile"],數據庫中存放的文件流
if (shipmain.Rows[0]["ZBDocumentFile"] != DBNull.Value)
{
int arraySize = ((byte[])shipmain.Rows[0]["ZBDocumentFile"]).GetUpperBound(0);
FileStream fs = new FileStream(HttpContext.Current.Server.MapPath(shipmain.Rows[0]["ZBDocument"].ToString()), FileMode.OpenOrCreate, FileAccess.Write);//由數據庫中的數據形成文件
fs.Write((byte[])shipmain.Rows[0]["ZBDocumentFile"], 0, arraySize);
fs.Close();
}