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SqlCommandBuilder.DeriveParameters Method

Retrieves parameter information from the stored procedure specified in the SqlCommand and populates the Parameters collection of the specified SqlCommand object.

[Visual Basic]
Public Shared Sub DeriveParameters( _
   ByVal command As SqlCommand _
)
[C#]
public static void DeriveParameters(
 SqlCommand command
);
[C++]
public: static void DeriveParameters(
 SqlCommand* command
);
[JScript]
public static function DeriveParameters(
   command : SqlCommand
);

Parameters

command
The SqlCommand referencing the stored procedure from which the parameter information is to be derived. The derived parameters are added to the Parameters collection of the SqlCommand.

Exceptions

Exception Type Condition
InvalidOperationException The command text is not a valid stored procedure name.

Remarks

DeriveParameters overwrites any existing parameter information for the SqlDbCommand.

DeriveParameters requires an extra call to the database to obtain the information. If the parameter information is known in advance, it is more efficient to populate the parameters collection by setting the information explicitly.

You can only use DeriveParameters with stored procedures. You cannot use DeriveParameters to populate the SqlParameterCollection with arbitrary Transact-SQL statements, such as a parameterized SELECT statement.

For more information, see Using Stored Procedures with a Command.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

See Also

SqlCommandBuilder Class | SqlCommandBuilder Members | System.Data.SqlClient Namespace

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