SqlString Structure (System.Data.SqlTypes)

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Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

SqlString Structure

Represents a variable-length stream of characters to be stored in or retrieved from the database. SqlString has a different underlying data structure from its corresponding .NET Framework String data type.

Namespace: System.Data.SqlTypes
Assembly: System.Data (in System.Data.dll)

Syntax

Visual Basic (Declaration)

<SerializableAttribute> _
Public Structure SqlString _
    Implements INullable, IComparable, IXmlSerializable

Visual Basic (Usage)

Dim instance As SqlString

[SerializableAttribute]
public struct SqlString : INullable, IComparable, 
    IXmlSerializable

Visual C++

[SerializableAttribute]
public value class SqlString : INullable, 
    IComparable, IXmlSerializable

JScript

JScript supports the use of structures, but not the declaration of new ones.

Remarks

String always uses the default CultureInfo from the current thread, but SqlString contains its own locale Id and compare flags. The comparison result of two SqlString structures is independent of operating system and current thread locale.

When you use SqlString comparison operators, note that if the LCIDs of arguments are different, comparison functions throw an exception because they cannot be compared. For example, the statement

 SqlString mySqlString = new SqlString("abc");

is equivalent to

 SqlString mySqlString = new SqlString("abc", CultureInfo.CurrentCulture.LCID);

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Reference

SqlString Members

System.Data.SqlTypes Namespace

CurrentCulture

Other Resources

SQL Server Data Types and ADO.NET