StreamWriter.WriteAsync Method (Char(), Int32, Int32)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Writes a subarray of characters to the stream asynchronously.
Assembly: mscorlib (in mscorlib.dll)
'Declaration Public Overrides Function WriteAsync ( _ buffer As Char(), _ index As Integer, _ count As Integer _ ) As Task
Parameters
- buffer
- Type:
System.Char
()
A character array that contains the data to write.
- index
- Type: System.Int32
The character position in the buffer at which to begin reading data.
- count
- Type: System.Int32
The maximum number of characters to write.
Return Value
Type: System.Threading.Tasks.TaskA task that represents the asynchronous write operation.
| Exception | Condition |
|---|---|
| ArgumentNullException | buffer is Nothing. |
| ArgumentException | The index plus count is greater than the buffer length. |
| ArgumentOutOfRangeException | index or count is negative. |
| ObjectDisposedException | The stream writer is disposed. |
| InvalidOperationException | The stream writer is currently in use by a previous write operation. |
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