MoveFirstIOD method (ILEADDicomDS)
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Overview |
Remarks
Updates the CurrentIOD property to the first item in the IOD Structure. The result depends on whether the IOD Structure is evaluated as a list or a tree.
If the IOD Structure is evaluated as a tree structure, this method updates the CurrentIOD property with the first item on the same level and with the same parent as the item contained in the CurrentIOD property. Please note that the numbering of the items in this first illustration is arbitrary and does not imply order.
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If the CurrentIOD property contains: |
The CurrentIOD property will be updated with: |
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Item 1 |
Item 2 |
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Item 3 |
Item 4 |
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Item 5 |
Item 5 |
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Item 6 |
Item 7 |
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NULL |
Item 2 |
If the IOD Structure is evaluated as a list, the CurrentIOD property is updated with the first item in the list. Please note that the numbering of the items in this illustration does indicate the order of the items when the IOD Structure is evaluated as a list.
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If the CurrentIOD property contains: |
The CurrentIOD property will be updated with: |
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NULL |
Item 1 |
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Item 12 |
Item 1 |
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Item 14 |
Item 1 |
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Item 22 |
Item 1 |
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Item 25 |
Item 1 |
The following methods will also help you navigate the IOD Structure as either a tree or a list:
If you evaluate the IOD Structure as a tree, you can also use the following methods to navigate the tree:
Note: Visual Basic users can either check the return value of the method, or capture and process errors to determine whether the MovexxxIOD methods have completed successfully. For an example of capturing errors, refer to any of the MovexxxIOD method examples.
See Also