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NOV Diagram for .NET lets you easily select one, more or all diagram items in a drawing page. To select/deselect shapes use the page's Selection property.
Selecting Shapes
The page's Selection object provides the following methods for selecting shapes and other diagram items.
- SingleSelect - makes the specified item or list of items the only selected items.
- MultiSelect - appends the given item or list of items to the current page selection without removing the currently selected items.
- ToggleSelect - toggles the selection of the given item or list of items, i.e. if the items were not selected, this method selects them and vice versa.
- SelectAll - selects all 1D, all 2D or all shapes in the page based on the specified parameter.
The following code shows how to select all 2D shapes in a page:
Select all 2D shapes |
Copy Code
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NPage page = drawingView.ActivePage;
page.Selection.SelectAll(ENSelectAllFilter.Shapes2D);
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Deselecting Shapes
To deselect shapes, use the following method of the shape:
- Deselect - deselects one or more diagram items.
- DeselectAll - deselects all diagram items.
Other Selection Properties and Methods
The page selection provides the following properties:
- Mode - defines the selection mode. Can be Single or Multiple.
- SelectedCount - gets the number of currently selected items.
- SelectedItems - gets the list of currently selected items.
- HasShapes - indicates whether the page selections contains any shapes.
- AlignmentAnhor - gets the node towards which alignment commands are executed.
- AlignmentAnchorMode - defines the alignment anchor mode. By default the last selected shape is the alignment anchor.
- FormatAnchor - gets the node towards which formatting commands are executed.
- FormatAnchorMode - defines the formatting anchor mode. By default the last selected shape is the format anchor.
- BatchDelete - gets a batch, whose Delete method can be used to delete all currently selected shapes.
- BatchGroup - gets a batch, whose Group method can be used to group all currently selected shapes.
The page selection also provides the following methods:
- IsSelected - check whether the given diagram item is selected.
- GetBounds - gets the selection bounds in page coordinates.