DataReaderExtensions.GetStream(DbDataReader, String) Method
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Gets a stream to retrieve data from the specified column.
public:
[System::Runtime::CompilerServices::Extension]
static System::IO::Stream ^ GetStream(System::Data::Common::DbDataReader ^ reader, System::String ^ name);public static System.IO.Stream GetStream(this System.Data.Common.DbDataReader reader, string name);static member GetStream : System.Data.Common.DbDataReader * string -> System.IO.Stream<Extension()>
Public Function GetStream (reader As DbDataReader, name As String) As Stream- reader
- DbDataReader
The data reader to get the column value from.
- name
- String
The name of the column.
A stream.
The connection was dropped or closed during the data retrieval.
-or-
The data reader is closed during the data retrieval.
-or-
There is no data ready to be read (for example, the first Read() hasn't been called, or returned false).
-or-
The data reader tried to read a previously-read column in sequential mode.
-or-
There was an asynchronous operation in progress. This applies to all Get* methods when running in sequential mode, as they could be called while reading a stream.
The name specified is not a valid column name.
The specified column isn't a binary type that supports reading with a Stream.
GetStream only supports the retrieval of values that can be converted to byte arrays.
| Product | Versions |
|---|---|
| .NET | Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Standard | 2.1 |
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