DataAsyncCommand.DeriveSchemaAsync Method
Definition
Important
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Derives, in an asynchronous manner, the schema of the specified command.
public:
virtual void DeriveSchemaAsync(System::String ^ command, Microsoft::VisualStudio::Data::Services::SupportEntities::DataCommandType commandType, cli::array <Microsoft::VisualStudio::Data::Services::SupportEntities::IVsDataParameter ^> ^ parameters, int commandTimeout, System::Object ^ userState);
public void DeriveSchemaAsync (string command, Microsoft.VisualStudio.Data.Services.SupportEntities.DataCommandType commandType, Microsoft.VisualStudio.Data.Services.SupportEntities.IVsDataParameter[] parameters, int commandTimeout, object userState);
abstract member DeriveSchemaAsync : string * Microsoft.VisualStudio.Data.Services.SupportEntities.DataCommandType * Microsoft.VisualStudio.Data.Services.SupportEntities.IVsDataParameter[] * int * obj -> unit
override this.DeriveSchemaAsync : string * Microsoft.VisualStudio.Data.Services.SupportEntities.DataCommandType * Microsoft.VisualStudio.Data.Services.SupportEntities.IVsDataParameter[] * int * obj -> unit
Public Sub DeriveSchemaAsync (command As String, commandType As DataCommandType, parameters As IVsDataParameter(), commandTimeout As Integer, userState As Object)
Parameters
- command
- String
The command for which the schema is derived.
- commandType
- DataCommandType
A value from the DataCommandType enumeration representing the command type for the indicated command. The value specifies how to interpret the contents of the command
parameter.
- parameters
- IVsDataParameter[]
A list of parameters to pass with the command.
- commandTimeout
- Int32
Amount of time, in seconds, before which the command times out.
- userState
- Object
The object on which this method calls back as the command progresses.
Implements
Exceptions
The command
or userState
parameter is null.
The commandTimeout
parameter is less than -1.