| BlobStream Class |
[This is preliminary documentation and is subject to change.]
This class is a workaround to DbDataReader.GetStream throwing an exception in MySql.Data
By extending System.IO.Stream and encapsulating the datareader it is possible to stream the data instead of reading it all to a byte array
Inheritance HierarchyNamespace: Netadmin.Core
Assembly: Netadmin.Core (in Netadmin.Core.dll) Version: release/9.0@131b654fe7332b0776120c2b44d96c6cac5ac9a2
SyntaxThe BlobStream type exposes the following members.
Constructors| Name | Description | ||
|---|---|---|---|
 | void | BlobStream(String, String) | Initializes a new instance of the BlobStream class |
Properties| Name | Description | ||
|---|---|---|---|
 | Boolean | CanRead | (Overrides StreamCanRead.) |
| Boolean | CanSeek | (Overrides StreamCanSeek.) |
| Boolean | CanTimeout | Gets a value that determines whether the current stream can time out. (Inherited from Stream.) |
| Boolean | CanWrite | (Overrides StreamCanWrite.) |
| Int64 | Length | (Overrides StreamLength.) |
| Int64 | Position | (Overrides StreamPosition.) |
| Int32 | ReadTimeout | Gets or sets a value, in miliseconds, that determines how long the stream will attempt to read before timing out. (Inherited from Stream.) |
| Int32 | WriteTimeout | Gets or sets a value, in miliseconds, that determines how long the stream will attempt to write before timing out. (Inherited from Stream.) |
Methods| Name | Description | ||
|---|---|---|---|
| IAsyncResult | BeginRead(Byte, Int32, Int32, AsyncCallback, Object) | Begins an asynchronous read operation. (Consider using ReadAsync(Byte, Int32, Int32) instead; see the Remarks section.) (Inherited from Stream.) |
| IAsyncResult | BeginWrite(Byte, Int32, Int32, AsyncCallback, Object) | Begins an asynchronous write operation. (Consider using WriteAsync(Byte, Int32, Int32) instead; see the Remarks section.) (Inherited from Stream.) |
| void | Close | Closes the current stream and releases any resources (such as sockets and file handles) associated with the current stream. Instead of calling this method, ensure that the stream is properly disposed. (Inherited from Stream.) |
| void | CopyTo(Stream) | Reads the bytes from the current stream and writes them to another stream. (Inherited from Stream.) |
| void | CopyTo(Stream, Int32) | Reads the bytes from the current stream and writes them to another stream, using a specified buffer size. (Inherited from Stream.) |
| Task | CopyToAsync(Stream) | Asynchronously reads the bytes from the current stream and writes them to another stream. (Inherited from Stream.) |
| Task | CopyToAsync(Stream, Int32) | Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size. (Inherited from Stream.) |
| Task | CopyToAsync(Stream, Int32, CancellationToken) | Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size and cancellation token. (Inherited from Stream.) |
| ObjRef | CreateObjRef(Type) | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) |
 | WaitHandle | CreateWaitHandle | Obsolete. Allocates a WaitHandle object. (Inherited from Stream.) |
| void | Dispose | Releases all resources used by the Stream. (Inherited from Stream.) |
| void | Dispose(Boolean) | Releases the unmanaged resources used by the BlobStream and optionally releases the managed resources (Overrides StreamDispose(Boolean).) |
| Int32 | EndRead(IAsyncResult) | Waits for the pending asynchronous read to complete. (Consider using ReadAsync(Byte, Int32, Int32) instead; see the Remarks section.) (Inherited from Stream.) |
| void | EndWrite(IAsyncResult) | Ends an asynchronous write operation. (Consider using WriteAsync(Byte, Int32, Int32) instead; see the Remarks section.) (Inherited from Stream.) |
| Boolean | Equals(Object) | (Inherited from Object.) |
| void | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| void | Flush | (Overrides StreamFlush.) |
| Task | FlushAsync | Asynchronously clears all buffers for this stream and causes any buffered data to be written to the underlying device. (Inherited from Stream.) |
| Task | FlushAsync(CancellationToken) | Asynchronously clears all buffers for this stream, causes any buffered data to be written to the underlying device, and monitors cancellation requests. (Inherited from Stream.) |
| Int32 | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| Object | GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| Type | GetType | Gets the Type of the current instance. (Inherited from Object.) |
| Object | InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| Object | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| MarshalByRefObject | MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) |
| void | ObjectInvariant | Obsolete. Provides support for a Contract. (Inherited from Stream.) |
| void | Open(IDbFactory) | |
| Int32 | Read(Byte, Int32, Int32) | (Overrides StreamRead(Byte, Int32, Int32).) |
| TaskTResult, T: Int32 | ReadAsync(Byte, Int32, Int32) | Asynchronously reads a sequence of bytes from the current stream and advances the position within the stream by the number of bytes read. (Inherited from Stream.) |
| TaskTResult, T: Int32 | ReadAsync(Byte, Int32, Int32, CancellationToken) | Asynchronously reads a sequence of bytes from the current stream, advances the position within the stream by the number of bytes read, and monitors cancellation requests. (Inherited from Stream.) |
| Int32 | ReadByte | Reads a byte from the stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream. (Inherited from Stream.) |
| Int64 | Seek(Int64, SeekOrigin) | (Overrides StreamSeek(Int64, SeekOrigin).) |
| void | SetLength(Int64) | (Overrides StreamSetLength(Int64).) |
| String | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| void | Write(Byte, Int32, Int32) | (Overrides StreamWrite(Byte, Int32, Int32).) |
| Task | WriteAsync(Byte, Int32, Int32) | Asynchronously writes a sequence of bytes to the current stream and advances the current position within this stream by the number of bytes written. (Inherited from Stream.) |
| Task | WriteAsync(Byte, Int32, Int32, CancellationToken) | Asynchronously writes a sequence of bytes to the current stream, advances the current position within this stream by the number of bytes written, and monitors cancellation requests. (Inherited from Stream.) |
| void | WriteByte(Byte) | Writes a byte to the current position in the stream and advances the position within the stream by one byte. (Inherited from Stream.) |
See Also