OleDbParameter.IsNullable OleDbParameter.IsNullable OleDbParameter.IsNullable OleDbParameter.IsNullable Property


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

 virtual property bool IsNullable { bool get(); void set(bool value); };
public override bool IsNullable { get; set; }
member this.IsNullable : bool with get, set
Public Overrides Property IsNullable As Boolean

Property Value

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


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

Public Sub CreateOleDbParameter()  
    Dim parameter As New OleDbParameter("Description", OleDbType.VarChar, 88)  
    parameter.IsNullable = True  
    parameter.Direction = ParameterDirection.Output  
End Sub 'CreateOleDbParameter  
public void CreateOleDbParameter()   
    OleDbParameter parameter = new OleDbParameter("Description", OleDbType.VarChar, 88);  
    parameter.IsNullable = true;  
    parameter.Direction = ParameterDirection.Output;  


Null values are handled using the DBNull class.

Applies to

See also