You can limit which objects are selected and added to a selection set by using a selection filter. A selection filter list can be used to filter selected objects by properties or type. For example, you might want to select only blue objects or objects on a certain layer. You can also combine selection criteria. For example, you can create a selection filter that limits selection to blue circles on the layer named Pattern. Selection filters can be specified as a parameter for the different selection methods in Select Objects in the Drawing Area.
用户可以使用选择过滤器来限制选择和添加到选择集中的对象。选择集过滤器列表可以通过特性或类型用于过滤选择的对象。例如，可能只想选择仅为蓝色的对象，或只在某个图层上的对象。还可以在过滤器列表中组合选择条件，例如，可以创建一个选择过滤器来限制选择的蓝色的圆且位置指定图层上的图案。选择过滤器可以作为参数指定给在“在图形区域中选择对象”部分中不同的选择方法。
NoteFiltering recognizes values explicitly assigned to objects, not those inherited by the layer. For example, if an object’s linetype property is set to ByLayer and the layer it is assigned is set to the Hidden linetype; filtering for objects assigned the Hidden linetype will not select these objects since their linetype property is set to ByLayer.
注意过滤功能只能识别明确指定给对象的值，而不能识别从图层继承的。例如，如果对象的 linetype 属性设置成 ByLayer 并且图层指定设置为隐藏线型；过滤对象指定为隐藏线型将不能选择那些 LineType 属性设置为 ByLayer 的对象。
