How we can upload and play a video file in asp.net

you can have a blob type declared for the column and store the video files ass blob types in sql server...

string filePath = @"D:\\Movies\sample.avi";//get the file name here

fs.Close();

reader.Close();

SqlConnection BlobsDatabaseConn = new SqlConnection("Data Source = .; Initial Catalog = BlobsDatabase; Integrated Security = SSPI");
SqlCommand SaveBlobeCommand = new SqlCommand();

SaveBlobeCommand.Connection = BlobsDatabaseConn;

SaveBlobeCommand.CommandType = CommandType.Text;

SaveBlobeCommand.CommandText = "INSERT INTO BlobsTable(BlobFileName, BlobFile)" + "VALUES (@BlobFileName, @BlobFile)";

SqlParameter BlobFileNameParam = new SqlParameter("@BlobFileName", SqlDbType.NChar);

SqlParameter BlobFileParam = new SqlParameter("@BlobFile", SqlDbType.Binary);

SaveBlobeCommand.Parameters.Add(BlobFileNameParam);

SaveBlobeCommand.Parameters.Add(BlobFileParam);

BlobFileNameParam.Value = filePath.Substring(filePath.LastIndexOf("\\") + 1);

BlobFileParam.Value = BlobValue;

try

{

    SaveBlobeCommand.Connection.Open();

    SaveBlobeCommand.ExecuteNonQuery();

    MessageBox.Show(BlobFileNameParam.Value.ToString() + " saved to database.","BLOB Saved", MessageBoxButtons.OK, MessageBoxIcon.Information);

}

catch(Exception ex)

{

    MessageBox.Show(ex.Message, "Save Failed", MessageBoxButtons.OK, MessageBoxIcon.Error);

}

finally

{

    SaveBlobeCommand.Connection.Close();

}

Retrieve the video from the server...

string SavePath = @"D:\\DownMovies";//save in this path

SqlConnection SaveConn = new SqlConnection("Data Source = .; Initial Catalog = BlobsDatabase; Integrated Security = SSPI");

SqlCommand SaveCommand = new SqlCommand();

SaveCommand.CommandText = "Select BlobFileName, BlobFile from BlobsTable where BlobFileName = @BlobFileName";

SaveCommand.Connection = SaveConn;

SaveCommand.Parameters.Add("@BlobFileName", SqlDbType.NVarChar).Value = "My Movie.wmv";

long CurrentIndex = 0;

int BufferSize = 100;

long BytesReturned;

byte[] Blob = new byte[BufferSize];

SaveCommand.Connection.Open();

SqlDataReader reader = SaveCommand.ExecuteReader(CommandBehavior.SequentialAccess);

while (reader.Read())

{

    FileStream fs = new FileStream(SavePath + "\\" + reader["BlobFileName"].ToString(), FileMode.OpenOrCreate, FileAccess.Write);

    BinaryWriter writer = new BinaryWriter(fs);

    CurrentIndex = 0;

    BytesReturned = reader.GetBytes(1, //the BlobsTable column indexCurrentIndex, // the current index of the field from which to begin the read operationBlob, // Array name to write tha buffer to0, // the start index of the array to start the write operationBufferSize // the maximum length to copy into the buffer); 

    while (BytesReturned == BufferSize)

    {

        writer.Write(Blob);

        writer.Flush();
        CurrentIndex += BufferSize;

        BytesReturned = reader.GetBytes(1, CurrentIndex, Blob, 0, BufferSize);

    } 

    writer.Write(Blob, 0, (int)BytesReturned);

    writer.Flush(); writer.Close(); 

    fs.Close();

}
 

reader.Close();

SaveCommand.Connection.Close();