DatasetQuery Class
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DatasetQuery(RunObj, int) | Construct the instance |
| Name | Description | |
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AsyncContents | Contains the TDataTable that resulted from one of the asynchronous commands, such as Select or Next. |
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Category | ReadOnly property with categories configured to DatasetQuery object. |
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Completed | The value of this property is incremented when an asynchronous operation is concluded. |
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CursorIndex | Defines the current row position in the resulting DatasetTable. |
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DB | Gets the DB configured in EditDatasetsTables. |
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DateTimeMode | Mapping DateTime Mode: (0-Local, 1-UTC) |
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Description | Gets the description of the DatasetQuery. |
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Disable |
Disables the commands to the DatasetQuery when the value is greater than zero.
0 = Enables the commands to the DatasetQuery 1 = Disables the commands to the DatasetQuery |
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Execute | Sends an asynchronous Execute command when the value is changed. |
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ExecuteCompleted | The value of this property is changed when the asynchronous Execute command is completed. |
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Id | Object ID (Internal Use). |
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LastStatus |
Gets the status of the last (most recent) asynchronous operation.
zero = success different than zero = error code |
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LastStatusMessage | Gets the status message of the last (most recent) asynchronous operation, where an empty string indicates success. |
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Level | ReadOnly property with levels configured to DatasetQuery object. |
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LocalContents | Contains the TDataTable that resulted from one of the sync commands, such as SelectCommand or NextCommand. |
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Mapping | Gets the mapping of the resulting DataTable columns with the Tags. |
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Next | Sends an asynchronous Next command when the value is changed. |
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NextExecuted | The value of this property is changed when the asynchronous Next command is completed. |
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RowCount | Gets the total number of rows in the resulting DatasetTable. |
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Select | Sends an asynchronous Select command when the value is changed. |
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SelectExecuted | The value of this property is changed when the asynchronous Select command is completed. |
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SqlStatement | Defines the SQL command to be executed. |
| Name | Description | |
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BeginSelectCommandAsync(AsyncCallback) | Begin executing an asynchronous Select command on the DatasetQuery |
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EndSelectCommand(IAsyncResult) | End executing an asynchronous Select command on the DatasetTable |
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ExecuteCommandAsync() | Execute an asynchronous command according to the SqlStatement |
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NextCommandAsync() | Executes a synchronous Next command that increments the value of the CursorIndex property. |
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SelectCommandAsync() | Executes a synchronous Select command, according to the SqlStatement. |
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SelectCommandWithStatusAsync(TRef<int>) | Executes an asynchronous Select command according to the SqlStatement, and displays status information. |
T.Modules.Dataset.DatasetQuery