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SqlParameter Constructor (String, Object)

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Initializes a new instance of the SqlParameter class that uses the parameter name and a value of the new SqlParameter.

Namespace:  System.Data.SqlClient
Assembly:  System.Data (in System.Data.dll)
C#
C++
F#
VB
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public SqlParameter(
	string parameterName,
	Object value
)

Parameters

parameterName
Type: System.String

The name of the parameter to map.

value
Type: System.Object

An Object that is the value of the SqlParameter.

When you specify an Object in the value parameter, the SqlDbType is inferred from the Microsoft .NET Framework type of the Object.

Use caution when you use this overload of the SqlParameter constructor to specify integer parameter values. Because this overload takes a value of type Object, you must convert the integral value to an Object type when the value is zero, as the following C# example demonstrates.

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Parameter = new SqlParameter("@pname", Convert.ToInt32(0));

If you do not perform this conversion, the compiler assumes that you are trying to call the SqlParameter (string, SqlDbType) constructor overload.

The following example creates a SqlParameter and sets some of its properties.

C#
VB
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private static void AddSqlParameter(SqlCommand command)
{
    SqlParameter parameter = new SqlParameter("@Description", 
        SqlDbType.VarChar, 88, "Description");
    parameter.IsNullable = true;
    parameter.Direction = ParameterDirection.Output;

    command.Parameters.Add(parameter);
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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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