DataReaderExtensions.GetChars Method

Reference

Definition

Namespace:: System.Data

Assembly:: System.Data.Common.dll

Assembly:: netstandard.dll

Source:: DataReaderExtensions.cs

Source:: DataReaderExtensions.cs

Source:: DataReaderExtensions.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Reads a specified number of characters from a specified column starting at a specified index, and writes them to a buffer starting at a specified position.

public:
[System::Runtime::CompilerServices::Extension]
 static long GetChars(System::Data::Common::DbDataReader ^ reader, System::String ^ name, long dataOffset, cli::array <char> ^ buffer, int bufferOffset, int length);

public static long GetChars (this System.Data.Common.DbDataReader reader, string name, long dataOffset, char[] buffer, int bufferOffset, int length);

static member GetChars : System.Data.Common.DbDataReader * string * int64 * char[] * int * int -> int64

<Extension()>
Public Function GetChars (reader As DbDataReader, name As String, dataOffset As Long, buffer As Char(), bufferOffset As Integer, length As Integer) As Long

Parameters

reader: DbDataReader

The data reader to get the column value from.

name: String

The name of the column.

dataOffset: Int64

The index within the row from which to begin the read operation.

buffer: Char[]

The buffer into which to copy the data.

bufferOffset: Int32

The index with the buffer to which the data will be copied.

length: Int32

The maximum number of characters to read.

Returns

Int64

The actual number of characters read.

Exceptions

IndexOutOfRangeException

The name specified is not a valid column name.

Applies to

Deila með