DbParameter::Direction Property
Gets or sets a value that indicates whether the parameter is input-only, output-only, bidirectional, or a stored procedure return value parameter.
Assembly: System.Data (in System.Data.dll)
public: property ParameterDirection Direction { virtual ParameterDirection get() abstract; virtual void set(ParameterDirection value) abstract; }
Property Value
Type: System.Data::ParameterDirectionOne of the ParameterDirection values. The default is Input.
Implements
IDataParameter::Direction| Exception | Condition |
|---|---|
| ArgumentException | The property is not set to one of the valid ParameterDirection values. |
If the ParameterDirection is output, and execution of the associated DbCommand does not return a value, the DbParameter contains a null value.
Output, InputOut, and ReturnValue parameters returned by calling ExecuteReader cannot be accessed until you call Close or Dispose on the DbDataReader.
Available since 10
.NET Framework
Available since 2.0