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Ensures that the Item index is within the bounds for the Items in the control.
Source position: stdctrls.pp line 589
protected procedure TCustomListBox.CheckIndex( |
const AIndex: Integer |
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AIndex |
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Index position examined in the method. |
CheckIndex is a procedure used to ensure that the specified index value is within the range of values allowed for the Items in the control. CheckIndex examines the value in AIndex, and raises an IndexOutOfBounds exception if it is not in the range 0 (zero) to Items.Count-1.
CheckIndex is used in the access specifiers for the Selected property (GetSelected, SetSelected).
Raises an IndexOutOfBounds exception when the index is out of bounds.
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The list of all items defined in the control. |
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The Selected state for an item in the control. |
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Gets the value for the Selected property. |
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Sets the value for the Selected property. |
| Version 3.2 | Generated 2024-02-25 | Home |