TraceReader 类
The TraceReader class is an abstract Trace Object class that is used in the construction of the TraceServer class, the TraceTable class, and the TraceFile class.
继承层次结构
System. . :: . .Object
Microsoft.SqlServer.Management.Trace..::..TraceReader
Microsoft.SqlServer.Management.Trace. . :: . .TraceReaderWriter
Microsoft.SqlServer.Management.Trace. . :: . .TraceServer
命名空间: Microsoft.SqlServer.Management.Trace
程序集: Microsoft.SqlServer.ConnectionInfoExtended(在 Microsoft.SqlServer.ConnectionInfoExtended.dll 中)
语法
声明
<ComVisibleAttribute(False)> _
Public Class TraceReader _
Implements IDataReader, IDisposable, IDataRecord
用法
Dim instance As TraceReader
[ComVisibleAttribute(false)]
public class TraceReader : IDataReader,
IDisposable, IDataRecord
[ComVisibleAttribute(false)]
public ref class TraceReader : IDataReader,
IDisposable, IDataRecord
[<ComVisibleAttribute(false)>]
type TraceReader =
class
interface IDataReader
interface IDisposable
interface IDataRecord
end
public class TraceReader implements IDataReader, IDisposable, IDataRecord
TraceReader 类型公开以下成员。
属性
名称 | 说明 | |
---|---|---|
Depth | Gets the depth value for the trace reader. | |
FieldCount | Gets the number of columns in the data. | |
IsClosed | Gets the Boolean property value that specifies whether the trace reader is closed. | |
Item[ ( [ ( Int32] ) ] ) | Gets the column specified by the index position. | |
Item[ ( [ ( String] ) ] ) | Gets the column with the specified name. | |
RecordsAffected | Gets the number of records of data. |
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方法
名称 | 说明 | |
---|---|---|
Close | Closes the trace reader. | |
Dispose | Deletes the trace reader information. | |
Equals | (从 Object 继承。) | |
Finalize | (从 Object 继承。) | |
GetBoolean | Returns a Boolean value from the record at the specified column position. | |
GetByte | Returns a Byte value from the record at the specified column position. | |
GetBytes | Gets a stream of bytes from the specified column offset into the buffer as an array, starting at the given buffer offset. | |
GetChar | Gets a character value of the specified column. | |
GetChars(Int32, array<Char> [] () [] [], Int32, Int32, Int32) | Gets a character array value from the record at the specified column position. | |
GetChars(Int32, Int64, array<Char> [] () [] [], Int32, Int32) | Gets a character array value from the record at the specified column position. | |
GetData | Returns IDataReader object used when the field points to a remote data structure. | |
GetDataTypeName | Gets the data type of the data value at the specified column position. | |
GetDateTime | Gets a DateTime value of the data value at the specified column position. | |
GetDecimal | Gets a Decimal value of the data value at the specified column position. | |
GetDouble | Gets a floating point value of the data value at the specified column position. | |
GetFieldType | Returns the field type of the data value at the specified column position. | |
GetFloat | Gets a floating point value of the data value at the specified column position. | |
GetGuid | Gets a Guid system value of the data value at the specified column position. | |
GetHashCode | (从 Object 继承。) | |
GetInt16 | Gets a small integer value of the data value at the specified column position. | |
GetInt32 | Gets an integer value of the data value at the specified column position. | |
GetInt64 | Gets a long integer value of the data value at the specified column position. | |
GetName | Gets the name of the field at the specified column position. | |
GetOrdinal | Gets the ordinal value of the data value at the specified column position. | |
GetSchemaTable | Gets a table that describes the schema. | |
GetStream | Gets the stream of data. | |
GetString | Gets a String value at the specified column position. | |
GetTimeSpan | Gets a TimeSpan value of the data value at the specified column position. | |
GetType | (从 Object 继承。) | |
GetValue | Gets a value of the data value at the specified column position. | |
GetValues | Gets an array of values from the data value at the specified column position. | |
IsDBNull | Specifies whether the specified column is set to null. | |
IsNull | Gets a Boolean value that specifies whether value of the data at the specified column position is null. | |
MemberwiseClone | (从 Object 继承。) | |
NextResult | Moves to the next result in the trace. | |
Read | Reads the trace record. | |
ToString | (从 Object 继承。) | |
TranslateSubclass | Translates the sub class. |
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注释
The TraceReader class provides trace data reading functionality and access to data that is common to both the TraceServer class, the TraceTable class, and the TraceFile class.
The trace data reading functionality is also available on the TraceReaderWriter class, which is derived from the TraceReader class and is used in the construction of the TraceTable class and TraceFile class.
Thread Safety
此类型的任何公共静态(Microsoft Visual Basic 中的 Shared)成员在多线程操作中是安全的。不保证所有实例成员都是线程安全的。
线程安全
此类型的任何公共 static(在 Visual Basic 中为 Shared) 成员都是线程安全的。不保证所有实例成员都是线程安全的。