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OleDbParameter.IsNullable Property

Gets or sets a value that indicates whether the parameter accepts null values.

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

public override bool IsNullable { get; set; }

Property Value

Type: System.Boolean
true if null values are accepted; otherwise false. The default is false.

Implements

IDataParameter.IsNullable
IDataParameter.IsNullable

Null values are handled using the DBNull class.

The following example creates an OleDbParameter and sets some of its properties.

public void CreateOleDbParameter() 
 {
    OleDbParameter parameter = new OleDbParameter("Description", OleDbType.VarChar, 88);
    parameter.IsNullable = true;
    parameter.Direction = ParameterDirection.Output;
 }

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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