XmlWriter.WriteBinHex(Byte[], Int32, Int32) Method
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When overridden in a derived class, encodes the specified binary bytes as BinHex
and writes out the resulting text.
public:
virtual void WriteBinHex(cli::array <System::Byte> ^ buffer, int index, int count);
public:
abstract void WriteBinHex(cli::array <System::Byte> ^ buffer, int index, int count);
public virtual void WriteBinHex (byte[] buffer, int index, int count);
public abstract void WriteBinHex (byte[] buffer, int index, int count);
abstract member WriteBinHex : byte[] * int * int -> unit
override this.WriteBinHex : byte[] * int * int -> unit
abstract member WriteBinHex : byte[] * int * int -> unit
Public Overridable Sub WriteBinHex (buffer As Byte(), index As Integer, count As Integer)
Public MustOverride Sub WriteBinHex (buffer As Byte(), index As Integer, count As Integer)
- buffer
- Byte[]
Byte array to encode.
- index
- Int32
The position in the buffer indicating the start of the bytes to write.
- count
- Int32
The number of bytes to write.
buffer
is null
.
The writer is closed or in error state. -or-
An XmlWriter method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."
index
or count
is less than zero.
-or-
The buffer length minus index
is less than count
.
The following example uses the WriteBinHex method to write BinHex
data. The BinHex
data is embedded within an <image>
element.
public static void BinHexEncodeImageFile() {
int bufferSize = 1000;
byte[] buffer = new byte[bufferSize];
int readBytes = 0;
using (XmlWriter writer = XmlWriter.Create("output.xml")) {
FileStream inputFile = new FileStream(@"C:\artFiles\sunset.jpg", FileMode.OpenOrCreate,
FileAccess.Read, FileShare.Read);
writer.WriteStartDocument();
writer.WriteStartElement("image");
BinaryReader br = new BinaryReader(inputFile);
Console.WriteLine("\r\nWriting BinHex data...");
do {
readBytes = br.Read(buffer, 0, bufferSize);
writer.WriteBinHex(buffer, 0, readBytes);
} while (bufferSize <= readBytes);
br.Close();
writer.WriteEndElement();// </image>
writer.WriteEndDocument();
}
}
Public Shared Sub BinHexEncodeImageFile()
Dim bufferSize As Integer = 1000
Dim buffer(bufferSize) As Byte
Dim readBytes As Integer = 0
Using writer As XmlWriter = XmlWriter.Create("output.xml")
Dim inputFile As New FileStream("C:\artFiles\sunset.jpg", FileMode.OpenOrCreate, FileAccess.Read, FileShare.Read)
writer.WriteStartDocument()
writer.WriteStartElement("image")
Dim br As New BinaryReader(inputFile)
Console.WriteLine(vbCr + vbLf + "Writing BinHex data...")
Do
readBytes = br.Read(buffer, 0, bufferSize)
writer.WriteBinHex(buffer, 0, readBytes)
Loop While bufferSize <= readBytes
br.Close()
writer.WriteEndElement() ' </image>
writer.WriteEndDocument()
End Using
End Sub
For the asynchronous version of this method, see WriteBinHexAsync.
제품 | 버전 |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
UWP | 10.0 |
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