OleDbParameter.IsNullable Property
Definition
Important
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Gets or sets a value that indicates whether the parameter accepts null values.
public:
virtual property bool IsNullable { bool get(); void set(bool value); };public override bool IsNullable { get; set; }member this.IsNullable : bool with get, setPublic Overrides Property IsNullable As BooleanProperty Value
true if null values are accepted; otherwise false. The default is false.
Examples
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;
}
Remarks
Null values are handled using the DBNull class.
