In this example, the horizontal alignment is harder to read.Дon't use the mixed state to represent a third state. In this example, the check boxes are correctly aligned. Alphabetical ordering isn't recommended because it is language dependent, and therefore not localizable.ДЄlign check boxes vertically, not horizontally. List check boxes in a logical order, such as grouping highly related options together or placing most common options first, or following some other natural progression. Reconsider using group boxes to organize groups of check boxes this often results in unnecessary screen clutter. Combine related options and separate unrelated options into groups of 10 or fewer, using multiple groups if necessary.ДЄn example of groups of related, independent options. Mixed choice In addition to their selected and cleared states, check boxes also have a mixed state for multiple selection to indicate that the option is set for some, but not all, objects. A group of check boxes is used where at least one protocol must be selected. because microsoft?windows doesn't have a control that directly supports this type of input, the best solution is to use a group of check boxes and handle the error when none of the options are selected. You may need to represent a selection of one or more dependent choices. A group of check boxes is used for independent choices.Дependent choices (one or more) A group of check boxes can also be used to select from a set of one or more choices. Unlike single-selection controls such as radio buttons, users can select any combination of options in a group of check boxes. Independent choices (zero or more) A group of check boxes is used to select from a set of zero or more choices. For data, use a check box list or multiple-selection list.Д¬heck boxes have several usage patterns: UsageДЄn individual choice A single check box is used to select an individual choice.ДЄ single check box is used for an individual choice. Use a check box if there other check boxes on the window.Дoes the option present a program option, rather than data? The option's values shouldn't be based on context or other data. In this example, a check box is an efficient use of screen space for this peripheral option. In this example, the options aren't important enough to use radio buttons. Otherwise, use a check box or a drop-down list. Use radio buttons if you have enough screen space and the options are important enough to be a good use of that screen space. Use radio buttons on wizard pages to make the alternatives clear, even if a check box is otherwise acceptable. In this example, the choices are not opposites so radio buttons are the better choice. In this example, the opposite choice from Landscape isn't clear, so the check box isn't a good choice. Use radio buttons if the meaning of the cleared check box isn't completely obvious. Would a radio button be a better choice? Where check boxes are suitable only for turning an option on or off, radio buttons can be used for completely different options. For more than 10 options, use a check box list. Is the number of options in a group 10 or fewer? Since the screen space used is proportional to the number of options, keep the number of check boxes to 10 or fewer. When used in a group, does the group comprise dependent choices, from which users must choose one or more? If so, use a group of check boxes and handle the error when none of the options are selected. When used in a group, does the group comprise independent choices, from which users may choose zero or more? If not, consider controls for dependent choices, such as radio buttons and check box tree views. Is the check box used to toggle an option on or off or to select or deselect an item? If not, use another control.ДЄre the selected and cleared states clear and unambiguous opposites? If not, use radio buttons or a drop-down list so that you can label the states independently. Guidelines related to layout are presented in a separate article.

Group check box word