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SqlConnectionStringBuilder.ContainsKey Method

Determines whether the SqlConnectionStringBuilder contains a specific key.

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

abstract ContainsKey : 
        keyword:string -> bool  
override ContainsKey : 
        keyword:string -> bool

Parameters

keyword
Type: System.String

The key to locate in the SqlConnectionStringBuilder.

Return Value

Type: System.Boolean
true if the SqlConnectionStringBuilder contains an element that has the specified key; otherwise, false.

ExceptionCondition
ArgumentNullException

keyword is null (Nothing in Visual Basic)

Because the SqlConnectionStringBuilder contains a fixed-size collection of key/value pairs, the ContainsKey method determines only if a particular key name is valid.

The following example creates a SqlConnectionStringBuilder instance, sets some of its properties, and then tries to determine whether various keys exist within the object by calling the ContainsKey method.

No code example is currently available or this language may not be supported.

The example displays the following output in the console window:

Connection string = Data Source=(local);Initial Catalog=AdventureWorks;Integrated Security=True
True
True
True
False

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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