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IDataParameter.IsNullable Property

Gets a value indicating whether the parameter accepts null values.

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

bool IsNullable { get; }
/** @property */
boolean get_IsNullable ()

function get IsNullable () : boolean

Not applicable.

Property Value

true if null values are accepted; otherwise, false. The default is false.

Null values are handled using the DBNull class.

The following example creates an instance of the implementing class, SqlParameter, and sets some of its properties.

private static void AddSqlParameter(SqlCommand command, 
    string paramValue)
{
    SqlParameter parameter = new SqlParameter(
        "@Description", SqlDbType.VarChar);
    parameter.Value = paramValue;
    parameter.IsNullable = true;
    command.Parameters.Add(parameter);
}

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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