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How to show file from SqlFilestream into wpf document viewer

I am inserting docx file into an SQL table like ,
DECLARE #file AS VARBINARY(MAX)
SELECT #file = CAST(bulkcolumn AS VARBINARY(MAX))
FROM OPENROWSET(
BULK
'D:\abc.docx',
SINGLE_BLOB ) AS x
INSERT INTO ItemData(Id,fileData)
SELECT NEWID(),#file
Now file inserted into table properly.
Read File
For reading file, I am using bellow code :
"ItemNumber" is used for identity.
Everything is working fine.
But I have to show that file to the Document Viewer in WPF.
string cmdString = "Select fileData.PathName() As Path from ItemData where ItemNumber = '" + itemNumber + "' ";
SqlCommand cmd = new SqlCommand(cmdString, conn);
Object pathObj = cmd.ExecuteScalar();
if (DBNull.Value != pathObj)
filePath = (string)pathObj;
else
{
throw new System.Exception("fileData.PathName() failed to read the path name for the Chart column.");
}
this.wbControl.Navigate(filePath);
SqlTransaction transaction = conn.BeginTransaction("mainTranaction");
cmd.Transaction = transaction;
cmd.CommandText = "SELECT GET_FILESTREAM_TRANSACTION_CONTEXT()";
Object obj = cmd.ExecuteScalar();
byte[] txContext = (byte[])obj;
SqlFileStream sqlFileStream = new SqlFileStream(filePath, txContext, FileAccess.ReadWrite);
//byte[] buffer2 = new byte[(int)sqlFileStream.Length];
byte[] buffer = new byte[512];
int numBytes = 0;
string someData = "EKG data.";
Encoding unicode = Encoding.GetEncoding(0);
sqlFileStream.Write(unicode.GetBytes(someData.ToCharArray()), 0, someData.Length);
sqlFileStream.Seek(0L, SeekOrigin.Begin);
numBytes = sqlFileStream.Read(buffer, 0, buffer.Length);
string readData = unicode.GetString(buffer);
if (numBytes != 0)
Console.WriteLine(readData);
//Because reading and writing are finished, FILESTREAM
//must be closed. This closes the c# FileStream class,
//but does not necessarily close the the underlying
//FILESTREAM handle.
sqlFileStream.Close();
//The final step is to commit or roll back the read and write
//operations that were performed on the FILESTREAM BLOB.
cmd.Transaction.Commit();
How to I display SqlFileStream to Document Viewer in WPF?
I am storing docx file in database.

Download File from BLOB Oracle using c#

i have created simple project in c# to save file data into Oracle Database using BLOB data type and it worked. i used devexpress gridcontrol to show the data. This is the sample data that i have created.
in the btnDownload will download data from blob oracle that i selected row. here is my code:
var rowHandle = gridView1.FocusedRowHandle;
var obj = gridView1.GetRowCellValue(rowHandle, "FILENAME");
if(koneksidb.con.State == ConnectionState.Open)
{
koneksidb.con.Close();
}
koneksidb.con.Open();
OracleCommand cmd = new OracleCommand();
OracleDataReader dr;
cmd.CommandText = #"SELECT * FROM LATIHANFILEMANAGER WHERE FILENAME='"+ obj +"'";
cmd.Connection = koneksidb.con;
dr = cmd.ExecuteReader();
while(dr.Read())
{
UInt32 FileSize = Convert.ToUInt32(dr.GetInt32(dr.GetOrdinal("FILESIZE"))); //get file size from table LATIHANFILEMANAGER
rawData = new byte[FileSize];
var nilai = dr.GetBytes(dr.GetOrdinal("FILEDATA"), 0, rawData, 0, (int)FileSize); //this file that i wanna download
FileStream fls = new FileStream(#"D:\newfile.png", FileMode.OpenOrCreate, FileAccess.Write);
fls.Write(rawData, 0, (int)FileSize);
fls.Close();
}
dr.Close();
when i run this project and download the image, i got a file and file size but it cannot be opened.
here is the file that i captured:
this tutorial i got from this link:
https://docs.oracle.com/cd/E17952_01/connector-net-en/connector-net-programming-blob-reading.html
any suggest?

first, you show your Image(BLOB) from database to PictureBox, than use SaveFileDialog.
for more information visit
How to use saveFileDialog for saving images in C#?

populate list with images from database

I want to retrieve the images from SQL table and save it in the list and show it in my listview. But I don't know how to do this. I need your help.
I am using SQL Server 2008, Visual Studio 2008, C# Window Application.
Here is my code:
cmd = new SqlCommand("Select ScanImage from ScanDocuments", con);
dr = cmd.ExecuteReader();
List<ImageList> lstitem = new List<ImageList>();
while (dr.Read())
{
ImageList _image = new ImageList();
byte[] data = (byte[])dr["ScanImage"];
MemoryStream ms = new MemoryStream(data);
Image bmp = new Bitmap(ms);
lstitem.Add(bmp);
}

Your code has several flaws - you need to use something like this instead:
// define connection string and select statement
// I used AdventureWorks 2012 database - change to match *YOUR* environment
string connectionString = "server=.;database=AdventureWorks2012;integrated security=SSPI;";
string query = "SELECT ThumbNailPhoto FROM Production.ProductPhoto";
// define a list of "Image" objects
List<Image> listOfImages = new List<Image>();
// using the SqlConnection and SqlCommand ....
using(SqlConnection conn = new SqlConnection(connectionString))
using (SqlCommand selectCmd = new SqlCommand(query, conn))
{
// open connection
conn.Open();
// execute SqlCommand to return a SqlDataReader
using (SqlDataReader rdr = selectCmd.ExecuteReader())
{
// iterate over the reader
while (rdr.Read())
{
// load the bytes from the database that represent your image
var imageBytes = (byte[]) rdr[0];
// put those bytes into a memory stream and "rewind" the memory stream
MemoryStream memStm = new MemoryStream(imageBytes);
memStm.Seek(0, SeekOrigin.Begin);
// create an "Image" from that memory stream
Image image = Image.FromStream(memStm);
// add image to list
listOfImages.Add(image);
}
}
conn.Close();
}
This works just fine for me - it loads the 101 ThumbNailPhoto from the AdventureWorks2012 database

open word document (saved as binary) from database

I'm making a program with c# and sql server and I have a problem , I hope if anyone help me .
I will but the database on pc and the program will be installed in other PCs , and app pcs' program connected to that database.
the program saving documents (word -excel) as binary ,using this code:
byte[] ReadFile(string sPath)
{
//Initialize byte array with a null value initially.
byte[] data = null;
//Use FileInfo object to get file size.
FileInfo fInfo = new FileInfo(sPath);
long numBytes = fInfo.Length;
//Open FileStream to read file
FileStream fStream = new FileStream(sPath, FileMode.Open, FileAccess.Read);
//Use BinaryReader to read file stream into byte array.
BinaryReader br = new BinaryReader(fStream);
//When you use BinaryReader, you need to supply number of bytes to read from file.
//In this case we want to read entire file. So supplying total number of bytes.
data = br.ReadBytes((int)numBytes);
return data;
}
private void button1_Click(object sender, EventArgs e)
{
string dt = dateTimePicker1.Value.ToShortDateString();
byte[] red = ReadFile(textBox3.Text);
con.Open();
string qry = "insert into documents ([Account no],Name,[Phone number],Date,[Document name],Document,Type) values(#accon,#name,#phone,#date,#docname,#doc,#type)";
//Initialize SqlCommand object for insert.
SqlCommand SqlCom = new SqlCommand(qry, con);
//We are passing Original Image Path and Image byte data as sql parameters.
SqlCom.Parameters.Add(new SqlParameter("#accon", textBox1.Text));
SqlCom.Parameters.Add(new SqlParameter("#name", textBox2.Text));
SqlCom.Parameters.Add(new SqlParameter("#phone", textBox3.Text));
SqlCom.Parameters.Add(new SqlParameter("#date", dt));
SqlCom.Parameters.Add(new SqlParameter("#docname", textBox1.Text));
SqlCom.Parameters.Add(new SqlParameter("#doc", (object)red));
SqlCom.Parameters.Add(new SqlParameter("#type", (object)textBox2.Text));
SqlCom.ExecuteNonQuery();
con.Close();
MessageBox.Show("done");
}
the problem : that I don't know how to retrieve saved documents in database and open it with Microsoft word or Microsoft Excel according to their types.
I want to select specific document form database and open it
Thanks in advance

String connStr = "connection string";
// add here extension that depends on your file type
string fileName = Path.GetTempFileName() + ".doc";
using (SqlConnection conn = new SqlConnection(connStr))
{
conn.Open();
using (SqlCommand cmd = conn.CreateCommand())
{
// you have to distinguish here which document, I assume that there is an `id` column
cmd.CommandText = "select document from documents where id = #id";
cmd.Parameters.Add("#id", SqlDbType.Int).Value = 1;
using (SqlDataReader dr = cmd.ExecuteReader())
{
while (dr.Read())
{
int size = 1024 * 1024;
byte[] buffer = new byte[size];
int readBytes = 0;
int index = 0;
using (FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None))
{
while ((readBytes = (int)dr.GetBytes(0, index, buffer, 0, size)) > 0)
{
fs.Write(buffer, 0, readBytes);
index += readBytes;
}
}
}
}
}
}
// open your file, the proper application will be executed because of proper file extension
Process prc = new Process();
prc.StartInfo.FileName = fileName;
prc.Start();

After you have retrieved your document from the database (or any type of storage you care to use on the server) you should save the document in the windows temporary folder (Path.GetSpecialFolder) and use the Word Interop library to start word (or excel using its own interop library) with the document you just saved.
var temporayFileName = Path.GetRandomFileName();
var temporaryFileStream = File.Open(temporaryFileName, FileMode.Create);
var memoryStream = documentRepository.Get(...);
memoryStream.CopyTo(temporaryFileStream);
// Word App
dynamic wordApp = new Application { Visible = true };
var doc = wordApp.Documents.Add(TemplateName);
templatedDocument.Activate();
(See this document for more information about starting and manipulating word:
http://msdn.microsoft.com/en-us/magazine/ff714583.aspx)
.

The crux is Response.ContentType:
Response.ContentType = "application/vnd.xls"; // for excel
Response.ContentType = "application/ms-word"; // for word
Response.ContentType = "image/jpg";//for jpg images
It is advised to store content type also in database so that your code will be generic and can display/store any type of file
System.Data.SqlClient.SqlDataReader rdr = null;
System.Data.SqlClient.SqlConnection conn = null;
System.Data.SqlClient.SqlCommand selcmd = null;
try
{
conn = new System.Data.SqlClient.SqlConnection(
System.Configuration.ConfigurationManager
.ConnectionStrings["ConnectionString"].ConnectionString);
selcmd = new System.Data.SqlClient.SqlCommand(
"select pic1 from msg where msgid=" + Request.QueryString["imgid"],
conn);
conn.Open();
rdr = selcmd.ExecuteReader();
while (rdr.Read())
{
Response.ContentType = "image/jpg";
Response.BinaryWrite((byte[])rdr["pic1"]);
}
if (rdr != null)
rdr.Close();
}
finally
{
if (conn != null)
conn.Close();
}

How do I store a image BLOB in an access database after getting the name from openfiledialog?

I am developing a C# application that has an Access database. What I want to do is allow a user to select an image through an "openfiledialog." I then want to store the image in one of the table of the access database in a BLOB field. I have searched over the internet, but found nothing helpful. I hope you can help me.
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
// textBox1.Show(openFileDialog1.FileName.ToString());
// MessageBox.Show(openFileDialog1.FileName.ToString());
textBox1.Text = openFileDialog1.FileName.ToString();
String filename = openFileDialog1.FileName.ToString();
byte[] buffer = File.ReadAllBytes(filename);
using (var conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=Policias.accdb"))
using (var cmd = conn.CreateCommand())
{
cmd.CommandText = "INSERT INTO DetallesMunicipio(imagen) VALUES (#imagen)";
cmd.Parameters.AddWithValue("#imagen", buffer);
conn.Open();
cmd.ExecuteNonQuery();
}
}
else
{
MessageBox.Show("Porfavor selecciona una imagen");
}
}
but now how can I be sure that is stored in the access database?

Example:
string filename = "foo.txt"; // TODO: fetch from file dialog
byte[] buffer = File.ReadAllBytes(filename);
using (var conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=foo.mdb"))
using (var cmd = conn.CreateCommand())
{
cmd.CommandText = "INSERT INTO MyTable VALUES (#Name, #Data)";
cmd.Parameters.AddWithValue("#Name", filename);
cmd.Parameters.AddWithValue("#Data", buffer);
cmd.ExecuteNonQuery();
}

What you will want to do is something similar to the following.
using (OpenFileDialog fileDialog = new OpenFileDialog){
if(fileDialog.ShowDialog == DialogResult.OK){
using (System.IO.FileInfo fileToSave = new System.IO.FileInfo(fileDialog.FilePath)){
MemoryStream ms = System.IO.FileStream(fileToSave.FullNae, IO.FileMode.Open);
//Here you can copy the ms over to a byte array to save into your blob in your database.
}
}
}

I would use File.ReeadAllBytes(file) and save the byte[] there in the DB.