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SqlParameter.Value Property

Gets or sets the value of the parameter.

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

'Declaration
Public Overrides Property Value As Object
'Usage
Dim instance As SqlParameter
Dim value As Object

value = instance.Value

instance.Value = value
/** @property */
public Object get_Value ()

/** @property */
public void set_Value (Object value)

public override function get Value () : Object

public override function set Value (value : Object)

Property Value

An Object that is the value of the parameter. The default value is null.

For input parameters, the value is bound to the SqlCommand that is sent to the server. For output and return value parameters, the value is set on completion of the SqlCommand and after the SqlDataReader is closed.

When you send a null parameter value to the server, the user must specify DBNull, not null. The null value in the system is an empty object that has no value. DBNull is used to represent null values.

If the application specifies the database type, the bound value is converted to that type when the provider sends the data to the server. The provider tries to convert any type of value if it supports the IConvertible interface. Conversion errors may result if the specified type is not compatible with the value.

Both the DbType and SqlDbType properties can be inferred by setting the Value.

The Value property is overwritten by M.System.Data.SqlClient.SqlDataAdapter.UpdateCommand.

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

Private Sub CreateSqlParameterVersion()
    Dim parameter As New SqlParameter("Description", SqlDbType.VarChar, 88)
    parameter.Value = "garden hose"
End Sub

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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