DataAsyncCommand Class
Definition
Important
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Enables executing data commands in an asynchronous manner.
public ref class DataAsyncCommand abstract[System.Runtime.InteropServices.Guid("AD18952D-2ED0-48f3-B5E6-48992526EB93")]
public abstract class DataAsyncCommand[<System.Runtime.InteropServices.Guid("AD18952D-2ED0-48f3-B5E6-48992526EB93")>]
type DataAsyncCommand = classPublic MustInherit Class DataAsyncCommand- Inheritance
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DataAsyncCommand
- Attributes
Constructors
| DataAsyncCommand() |
Class constructor. Instantiates a nonparameterized instance of the DataAsyncCommand class. |
Methods
| AsyncDeriveParameters(String, Int32, Int32, DataAsyncCommandEvents) |
Derives, in an asynchronous manner, a set of parameters for use with a specified command. |
| AsyncDeriveSchema(String, Int32, DataParameter[], Int32, DataAsyncCommandEvents) |
Derives, in an asynchronous manner, the schema of the specified command. |
| AsyncExecute(String, Int32, DataParameter[], Int32, DataAsyncCommandEvents) |
Executes a command in an asynchronous manner. |
| AsyncExecuteWithoutResults(String, Int32, DataParameter[], Int32, DataAsyncCommandEvents) |
Executes, in an asynchronous manner, a command that does not return any results beyond an integer value indicating status. |
| AsyncPrepare(String, Int32, Int32, DataAsyncCommandEvents) |
Prepares, in an asynchronous manner, the specified command to be executed against the data source; the command may then be executed multiple times, with varying parameters. |
| Cancel() |
Cancels the asynchronous call, returning immediately. |
| Cancel(Boolean) |
Cancels the asynchronous call, returning either immediately (asynchronously) or after waiting for the call to be fully cancelled (synchronously). |