/// <summary>
/// Return stream private extenstions, just for testing..
/// </summary>
/// <param name="streamID"></param>
/// <returns></returns>
public static Hashtable GetStreamPrivateExtensions(int streamID)
{
String query = "select privextns from stream where stream_id=" + streamID;
if (!DatabaseUtility.openAndExecute(query))
{
return(null);
}
try
{
if (reader.Read())
{
System.Data.SqlTypes.SqlBinary sb = reader.GetSqlBinary(0);
byte[] ba = sb.Value;
object o = Utility.ByteArrayToObject(ba);
Hashtable h = (Hashtable)o;
return(h);
}
}
finally
{
DatabaseUtility.cleanUpConnection();
}
return(null);
}
/// 带参数的sql语句，单参数
/// <param name="sqltext">sql语句</param>
/// <returns>返回大字段参数</returns>
public static System.Data.SqlTypes.SqlBinary ExecuteBinarysqlToBinary(string sqltext, string connstr)
{
System.Data.SqlTypes.SqlBinary sb = new System.Data.SqlTypes.SqlBinary();
System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection(connstr);
try
{
System.Data.SqlClient.SqlCommand scomm = new SqlCommand(sqltext, conn);
conn.Open();
System.Data.SqlClient.SqlDataReader sr = scomm.ExecuteReader();
if (sr != null && sr.HasRows)
{
sr.Read();
sb = sr.GetSqlBinary(0);
}
sr.Close();
}
catch (System.Data.SqlClient.SqlException ex)
{
throw (ex);
}
finally
{
if (conn.State.ToString() != "Closed")
{
conn.Close();
}
}
return(sb);
}
protected void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
Response.ContentType = "image/jpeg";
int width = 110;
int height = 140;
if (Request.QueryString.Count >= 3)
{
width = int.Parse(Request.QueryString["w"]);
height = int.Parse(Request.QueryString["h"]);
}
string s = " SELECT * FROM dbo.tbl_Core_PeopleImages ";
s += " WHERE (PersonId = '" + Request.QueryString["id"] + "' ) ";
s += " ORDER BY ImageDate DESC";
Encode en = new Encode();
string db_connection = en.GetDbConnection();
using (SqlConnection cn = new SqlConnection(db_connection))
{
cn.Open();
using (SqlCommand cm = new SqlCommand(s, cn))
{
using (SqlDataReader dr = cm.ExecuteReader())
{
if (dr.Read())
{
System.Data.SqlTypes.SqlBinary b1 = new System.Data.SqlTypes.SqlBinary();
b1 = dr.GetSqlBinary(2);
byte[] b3 = new byte[b1.Length];
b3 = (byte[])b1;
MemoryStream ms1 = new MemoryStream(b3);
Bitmap myImage = new Bitmap(ms1);
myImage.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
else
{
Bitmap b = new System.Drawing.Bitmap(width, height);
Graphics g = Graphics.FromImage(b);
g.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.White), 0, 0, width, height);
b.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
dr.Close();
}
}
}
}
private void Insert()
{
using (SqlConnection Connection = new SqlConnection(Properties.Settings.Default.SkyDatabaseConnectionString))
{
var binaryContent = new System.Data.SqlTypes.SqlBinary(Content);
Connection.Open();
SqlCommand command = new SqlCommand()
{
Connection = Connection
};
command.CommandText = "INSERT INTO [Message] VALUES(@user_id, @chat_id, @ContentType, @content, @date)";
command.Parameters.Add(new SqlParameter("@user_id", User_id));
command.Parameters.Add(new SqlParameter("@chat_id", Chat_id));
command.Parameters.Add(new SqlParameter("@ContentType", ContentType));
command.Parameters.Add(new SqlParameter("@content", binaryContent));
command.Parameters.Add(new SqlParameter("@date", Date));
command.ExecuteNonQuery();
}
}
