'Declaration
 
Public Overrides NotOverridable Property IsNullable As Boolean

'Usage
 
Dim instance As TdParameter
Dim value As Boolean
 
instance.IsNullable = value
 
value = instance.IsNullable

public override bool IsNullable {get; set;}

public:
property bool IsNullable {
   bool get() override;
   void set (    bool value) override;
}

Property Value

Every parameter sent to Teradata has a specific data type, for example INTEGER. IsNullable property is used as a Teradata data_type_attribute, for example INTEGER NOT NULL.

IsNullable attribute has no impact on the Value property. That is TdParameter.Value can always be set to System.DbNull.Value by the application or the Data Provider (output parameter).

Reference

TdParameter Class
TdParameter Members