Windows phone 7 input prompt

You might expect that your game will stop running while the dialog is open, but this is not the case: There might be some useful aspects to this—for example, it will allow you to keep your music and sound effects generating. In terms of the game, however, you might want to have this pause while the dialog is open. We can achieve this very easily by checking the Guide. IsVisible property which you already saw in Listing 3. If this returns true , skip updating the game objects or any other game logic during that call to Update. Once the function returns false , the dialog has closed, and updates can be resumed once again.

Windows Phone 7: Windows Phone 8: Security Software Imaging devices. Prompting the User to Enter Text The Keyboard object provides a simple way to read the keyboard for controlling a game, but if you want your user to enter text it is generally not the best approach. Figure 1. Example 3. It's Not Finished Yet!

Working with the Camera part 3 - Camera Lens App. Working with the Camera part 2 - Raw Hardware Access. BlackBerry Development: Top Adding Structure to Your Diagrams - Formatting and sizing lists. Adding Structure to Your Diagrams - Adding shapes to lists. Adding Structure to Your Diagrams - Sizing containers.

Using the Organization Chart Wizard with new data. Such interaction misdirected at the dialog box may have unintended consequences. Assign initial input focus to the control that users are most likely to interact with first , which is usually but not always the first interactive control. Avoid assigning initial input focus to a Help link. For keyboard navigation, tab order should flow in a logical order, generally from left to right, top to bottom. Usually tab order follows reading order, but consider making these exceptions:.

When assigning order, assume that users display dialog boxes for their intended purpose; so, for example, users display choice dialogs to make choices, not to review and click Cancel. Pressing the Esc key always closes an active dialog box.

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This is true for dialog boxes with Cancel or Close, and even if Cancel has been renamed to Close because the results can no longer be undone. Whenever possible, assign unique access keys to all interactive controls or their labels. Read-only text boxes are interactive controls because users can scroll them and copy text so they benefit from access keys. Don't assign access keys to: OK, Cancel, and Close buttons. Enter and Esc are used for their access keys. However, always assign an access key to a control that means OK or Cancel, but has a different label. Group labels.

Normally, the individual controls within a group are assigned access keys, so the group label doesn't need one. However, if there is a shortage of access keys, assign an access key to the group label and not the individual controls.

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Link labels. There are often too many links to assign unique access keys, and the underscores often used to signify links hide the access key underscores. Access links with the Tab key instead. Browse buttons labeled " These Browse buttons can't be assigned access keys uniquely. Unlabeled controls, such as spin controls, graphic command buttons, and unlabeled progressive disclosure controls. Non-label static text or labels for controls that aren't interactive, such as progress bars.

Whenever possible, assign access keys for commonly used commands according to the Standard Access Key Assignments. While consistent access key assignments aren't always possible, they are certainly preferred especially for frequently used dialog boxes. Assign commit button access keys first to ensure that they have the standard key assignments.

If there isn't a standard key assignment, use the first letter of the first word. For example, the access key for Yes and No commit buttons should always be "Y" and "N", regardless of the other controls in the dialog box. To make access keys easy to find, assign the access keys to a character that appears early in the label, ideally the first character, even if there is a keyword that appears later in the label.

Avoid using characters that make the underline difficult to see, such as from most problematic to least problematic:. For more guidelines and examples, see Keyboard. For long-running tasks, assume that users will do something else while the task is completing. Design the task to run unattended. In this example, Windows Explorer allows users to continue with the task after a recoverable error.

Don't use a notification for completion feedback. Use either a progress dialog or an action success notification , but not both. This compact format shows the most important information first so that it isn't truncated on the taskbar. For more information and examples, see Progress Bars. In this example, the yellow star icon represents Favorites. The icon is easily recognizable and is used consistently throughout Windows to represent Favorites.

For more information and examples, see Icons. Don't confirm commit buttons. Doing so unnecessarily can be very annoying. For more guidelines and examples, see Confirmations. Right-align commit buttons in a single row across the bottom of the dialog box, but above the footnote area. Do this even if there is a single commit button such as OK. Have a clear separation from commit buttons which close the window and all other command buttons such as Advanced.

Design concepts

Users should be able to understand the options by reading the button text alone. Use Close for dialogs that don't have settings, such as informational dialogs. Never use Close for dialogs that have settings. Use OK when changing a specific setting or a collection of settings. For legacy dialog boxes without a main instruction, you can use generic labels such as OK. Often such dialog boxes aren't designed to perform a specific task, preventing more specific responses. Certain tasks require more thought and careful reading for users to make informed decisions. This is usually the case with confirmations.

In such cases, you can purposely use generic commit button labels to force users to read the main instructions and prevent hasty decisions. Alternatively, you can add the word "anyway" to the positive commit button label to indicate that the dialog box presents a reason not to proceed and that users should read the dialog carefully before proceeding. In this example, "anyway" is added to the commit button label to indicate that users should proceed carefully. Use Cancel or Close for negative commit buttons instead of specific responses to the main instruction.

Quite often users realize that they don't want to perform a task once they see a dialog box. If Cancel or Close were relabeled to specific responses, users would have to carefully read all the commit buttons to determine how to cancel. Labeling Cancel and Close consistently makes them easy to find. Don't map generic labels to their specific meaning with text in the content area. Instead, use specific commit button labels, or a question dialog using links if the labels are lengthy.

Prefer specific responses to Yes and No buttons. While there's nothing wrong with using Yes and No, specific responses can be understood more quickly, resulting in efficient decision making. However, confirmations usually have Yes and No buttons to make users give the confirmation some thought before responding. Use Yes and No buttons only to respond to yes or no questions. The main instruction should be naturally expressed as a yes or no question.

Never use OK and Cancel for yes or no questions. In these examples, Yes and No are good responses to yes and no questions, but specific responses are even better. Consider phrasing the main instruction as a yes or no question if commit buttons with specific phrasing turn out to be long or awkward. Alternatively, you can use command links for longer responses five words or more to the main instruction. The specific phrasing in the incorrect example is too long, so the correct example uses Yes and No. Don't use Yes and No buttons if the meaning of the No response is unclear.

If so, use specific responses instead. In modal dialogs, clicking OK means apply the values, perform the task, and close the window. Don't assign access keys to OK, because Enter is the access key for the default button. Doing so makes the other access keys easier to assign. Don't use OK buttons for errors or warnings. Problems are never OK. Use Close instead. Don't use OK buttons in modeless dialog boxes.

Rather, modeless dialogs should use task-specific commit buttons for example, Find. However, some modeless dialog boxes require only a Close button. Clicking Cancel means abandon all changes, cancel the task, close the window, and return the environment to its previous state, leaving no side effect. For nested choice dialog boxes, clicking Cancel in the owner choice dialog means any changes made by owned choice dialogs are also abandoned. Provide a Cancel button to let users explicitly abandon changes. Dialog boxes need a clear exit point.

Don't depend on users finding the Close button on the title bar. In this example, having only a Close button on the title bar makes it appear as though users don't have a choice. Don't assign access keys to Cancel, because Esc is the access key. Don't disable the Cancel button.

Users should always be able to cancel dialog boxes. Don't use Apply buttons in dialog boxes that aren't property sheets or control panels. The Apply button means apply the pending changes, but leave the window open. Doing so allows users to evaluate the changes before closing the window. However, only property sheet and control panels have this need. Indirect dialog boxes are displayed out of context, either as an indirect result of a task or the result of a problem with a system or background process. For indirect dialogs, the Cancel button is ambiguous because it could mean cancel the dialog or cancel the entire task.

If users need to both cancel the dialog box and the task, give commit buttons to do both. Label the button that cancels the dialog box with a negative response to the main instruction. Label the button that cancels the entire task with Cancel. Using Cancel allows the dialog box to be used in many contexts.

In this example, this dialog box is displayed by Windows Paint as the result of a New or Exit command when the graphic hasn't been saved. Don't Save closes the dialog without saving, whereas Cancel cancels the New or Exit command. In this example, there is no way to cancel the task closing Office Shortcut Bar that led to displaying this dialog box. This dialog box needs a Cancel button. If users just need to cancel the dialog but not the task, use a button with a specific, negative response to the main instruction, and don't have a Cancel button. In this example, this dialog box is displayed indirectly as the result of navigating to a Web page that installs an ActiveX control.

Using Cancel would be ambiguous here, so Don't run is used instead. For more information and examples, see Command Buttons. For more information and examples, see Command Links. In this example, the disabled text box labels are also disabled, but their group label and group explanation are not. Don't indicate anything, but handle missing required input with error messages.

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This approach reduces clutter and works well if most input is optional or users aren't likely to skip controls, thus keeping the number of error messages low. Indicate required input using an asterisk at the beginning of the label. Explain the asterisk using either:. This approach works well if there aren't many required controls, but poorly if most controls are required.

If all controls require input, state "All input required" at an appropriate place at the top of the content area. This approach reduces clutter for this specific case. Indicate optional inputs with " optional " after the label. This approach works well if most input is required, but poorly otherwise.

For consistency, try to use the same method to indicate required input throughout your program. Specifically, indicate either required or optional input as needed, but avoid using both within the same program. Prevent errors by using controls that are constrained to valid user input. You can also help reduce the number of errors by providing reasonable default values. Validate user input as soon as possible, and show errors as closely to the point of input as possible. Use modeless error handling in-place errors or balloons for user input problems.

Use balloons for non-critical, single-point user input problems detected while in a text box or immediately after a text box loses focus. Balloons don't require available screen space or the dynamic layout that is required to display in-place messages. Display only a single balloon at a time. Because the problem isn't critical, no error icon is necessary. Balloons go away when clicked, when the problem is resolved, or after a timeout. Use in-place errors for delayed error detection , usually errors found by clicking a commit button.

Don't use in-place errors for settings that are immediately committed. There can be multiple in-place errors at a time. Use normal text and a 16x16 pixel error icon, placing them directly next to the problem whenever possible. In-place errors don't go away unless the user commits and no other errors are found.

Is this the right user interface?

Use modal error handling task dialogs or message boxes for all other problems, including errors that involve multiple controls, or are non-contextual or non-input errors found by clicking a commit button. When an input problem is found and reported, set input focus to the first control with the incorrect data. Scroll the control into view if necessary. For more information and examples, see Error Messages and Balloons.

When providing user assistance, consider the following options listed in their order of preference:. Locate Help links at the bottom of the content area of the dialog box. If the dialog box has a footnote and the Help link is related to it, place the Help link within the footnote. Don't use general or vague Help topic links or generic Help buttons. Users often ignore generic Help.

For more information and examples, see Help. In this example, users are most likely to choose the same printing settings as they did last time. However, the number of copies desired is likely to change, so this setting isn't reselected. However, phrasing must match the associated command, even if the command is negatively phrased; so, for example, use disable to confirm a Disable command.

For more information and examples, see Command Link guidelines. Exit focus mode. In this article. A typical dialog box. Dialog boxes have two fundamental types: Modal dialog boxes require users to complete and close before continuing with the owner window. These dialog boxes are best used for critical or infrequent, one-off tasks that require completion before continuing. Modeless dialog boxes allow users to switch between the dialog box and the owner window as desired. These dialog boxes are best used for frequent, repetitive, on-going tasks. They consist of the following parts, which can be assembled in a variety of combinations: A title bar to identify the application or system feature where the dialog box came from.

A main instruction , with an optional icon, to identify the user's objective with the dialog. A content area for descriptive information and controls. A command area for commit buttons, including a Cancel button, and optional More options and Don't show this again controls. A footnote area for optional additional explanations and help, typically targeted at less experienced users.

A typical task dialog. A typical task pane. Is this the right user interface? To decide, consider these questions: Is the purpose to provide users with information, ask users a question, or allow users to select options to perform a command or task? If not, use another user interface UI. Is the purpose to view and change properties for an object, collection of objects, or a program? If so, use a property window or toolbar instead. Is the purpose to present a collection of commands or tools? If so, use a toolbar or palette window.

Is the purpose to verify that the user wants to proceed with an action? Is there a clear reason not to proceed and a reasonable chance that sometimes users won't? If so, use a confirmation. Is the purpose to give an error or warning message? If so, use an error message or warning message. Is the purpose to: Open files Save files Open folders Find or replace text Print a document Select attributes of a printed page Select a font Choose a color Browse for a file, folder, computer, or printer Search for users, computers, or groups in Microsoft Active Directory Prompt for a user name and password?

Is the purpose to perform a multi-step task that requires more than a single window? If so, use a task flow or wizard instead. Is the purpose to inform users of a system or program event that isn't related to the current user activity, that doesn't require immediate user action, and users can freely ignore? If so, use a notification instead. Is the purpose to show program status? If so, use a status bar instead. Would it be preferable to use in-place UI?

Dialog boxes can break the user's flow by demanding attention. Sometimes that break in flow is justified, such as when the user must perform an action that is outside the current context. In other cases, a better approach is to present the UI in context, either directly with in-place UI such as a task pane , or on demand using progressive disclosure.

Is the purpose to display a non-critical user input problem or special condition? If so, use a balloon instead. For task flows, would it be preferable to use another page? Generally you want a task to flow from page to page within a single window. Use dialog boxes to confirm in-place commands, to get input for in-place commands, and to perform secondary, stand-alone tasks that are best done independently and outside the main task flow.

For selecting options, are users likely to change the options? If not, consider alternatives, such as: Using the default options without asking, but allowing users to make changes later. Providing a version with options for example, Print Generally, toolbar commands should be immediate and avoid displaying dialog boxes. For selecting options, is there a simpler, more direct way to present the options? If so, consider alternatives, such as: Using a split button to select variations of a command. Using a submenu for commands, check boxes, radio buttons and simple lists.

In these examples, submenus are used instead of dialog boxes for simple selections. Design concepts When properly used, dialog boxes are a great way to give power and flexibility to your program. To design effective dialog boxes, use the following elements effectively: Dialog box text Main instructions Don't show this again option If you do only one thing Usage patterns Dialog boxes have several usage patterns: Question dialogs using buttons ask users a single question or to confirm a command, and use simple responses in horizontally arranged command buttons.

Question dialogs using command links ask users a single question or to select a task to perform, and use detailed responses in vertically arranged command links. Choice dialogs present users with a set of choices, usually to specify a command more completely. Unlike question dialogs, choice dialogs can ask multiple questions. Progress dialogs present users with progress feedback during a lengthy operation longer than five seconds , along with a command to cancel or stop the operation. Informational dialogs display information requested by the user.

Guidelines General Don't use scrollable dialog boxes. Menu bars are acceptable when a dialog box is used to implement a primary window such as a utility. In this example, Find Certificates is a modeless dialog box with a menu bar. Modal dialog boxes Use for critical or infrequent, one-off tasks that require completion before continuing. Use a delayed commit model so that changes don't take effect until explicitly committed. Implement using a task dialog whenever appropriate to achieve a consistent look. Task dialogs do require Windows Vista or later, so they aren't suitable for earlier versions of Windows.

Modeless dialog boxes Use for frequent, repetitive, on-going tasks. Use an immediate commit model so that changes take effect immediately.

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For modeless dialogs, use an explicit Close command button in the dialog to close the window. For both, use a Close button on the title bar to close the window. Consider making modeless dialog boxes dockable. Dockable modeless dialogs allow for more flexible placement. Some modeless dialog boxes used in Microsoft Office are dockable.

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Multiple dialog boxes Don't display more than one owned choice dialog at a time from an owner choice dialog. Displaying more than one makes the meaning of the commit buttons difficult for users to understand. You may display other types of dialog boxes such question dialogs as needed. For a sequence of related dialogs, consider using a multi-page dialog if possible. Use individual dialogs if they aren't clearly related. Multi-page dialog boxes Use a multi-page dialog box instead of individual dialog boxes when you have the following sequence of related pages: A single input page optional A progress page A single results page The input page is optional because the task may have been initiated somewhere else.

In this example, Windows Network Diagnostics consists of progress and results pages. Don't use a multi-page dialog if the input page is a standard dialog. In this case the consistency of using a standard dialog is more important. Don't use Next or Back buttons and don't have more than three pages. Multi-page dialog boxes are for single-step tasks with feedback. They aren't wizards , which are used for multi-step tasks. Wizards have a heavy, indirect feel compared to multi-page dialog boxes.

On the input page, use specific command buttons or command links to initiate the task. Use a Cancel button on the input and progress pages, and a Close button on the results page. Presentation To make dialog boxes easy to find and access, clearly associate the dialog with its source, and work well with multiple monitors: Initially display dialogs "centered" on top of the owner window.

For subsequent display, consider displaying it in its last location relative to the owner window if doing so is likely to be more convenient. Initially center dialogs on top of the owner window. If a dialog is contextual, display it near the object from which it was launched. However, place it out of the way preferably offset down and to the right so that the object isn't covered by the dialog. An object's properties are displayed near to the object.

For modeless dialogs, display initially on top of the owner window to make it easy to find. If the user activates the owner window, that may obscure the modeless dialog. If necessary, adjust the initial location so that the entire dialog is visible within the target monitor. If a resizable window is larger than the target monitor, reduce it to fit. When a dialog is redisplayed, consider displaying it in the same state as last accessed. On close, save the monitor used, window size, location, and state maximized vs.

On redisplay, restore the saved dialog size, location, and state using the appropriate monitor. Also, consider making these attributes persist across program instances on a per-user basis. For resizable windows, set a minimum window size if there is a size below which the content is no longer usable. Consider altering the presentation to make the content usable at smaller sizes.

Don't use the Always on Top attribute. Use only when a dialog box implements an essentially modal operation, but it needs to be suspended briefly to access the owner window. For example, when spell-checking a document, users may occasionally leave the spell check dialog box and access the document to correct errors. Title bars Dialog boxes don't have title bar icons. Title bar icons are used as a visual distinction between primary windows and secondary windows. If a dialog box is used to implement a primary window such as a utility and therefore appears on the taskbar, it does have a title bar icon.

In this case, optimize the title for display on the taskbar by concisely placing the distinguishing information first. Dialog boxes always have a Close button. Modeless dialogs can also have a Minimize button. Resizable dialogs can have a Maximize button. Don't disable the Close button. Having a Close button helps users stay in control by allowing them to close windows they don't want. For progress dialogs, you may disable the Close button if the task must run to completion to achieve a valid state or prevent data loss.

The Close button on the title bar should have the same effect as the Cancel or Close button within the dialog box. Never give it the same effect as OK. If the title bar caption and icon are already displayed in a prominent way near the top of the window, you can hide the title bar caption and icon to avoid redundancy.

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However, you still have to set a suitable title internally for use by Windows. Interaction When displayed, user initiated dialog boxes should always take input focus. Usually tab order follows reading order, but consider making these exceptions: Put the most commonly used controls earlier in tab order.

Put Help links at the bottom of a dialog box, after the commit buttons in tab order. Access keys Whenever possible, assign unique access keys to all interactive controls or their labels. In this example, the positive commit button has an access key assigned. Generic Help buttons, which are accessed with F1.

Tab names. Prefer characters with wide widths, such as w, m, and capital letters. Prefer a distinctive consonant or a vowel, such as "x" in Exit. Avoid using characters that make the underline difficult to see, such as from most problematic to least problematic: Letters that are only one pixel wide, such as i and l. Letters with descenders, such as g, j, p, q, and y.

Letters next to a letter with a descender. Progress dialogs For long-running tasks, assume that users will do something else while the task is completing. Present users with progress feedback dialog box if an operation takes longer than five seconds to complete , along with a command to cancel or stop the operation.

Dialog Boxes

For wizards and task flows, use a modal dialog for progress only if the task stays on the same page as opposed to advancing to another page and users can't do anything while waiting. Otherwise, use a progress page or in-place progress. If the operation is a long-running task over 30 seconds and can be performed in the background, use a modeless progress dialog so that users can continue to use your program while waiting.

Modeless progress dialogs: Have a Minimize button on the title bar. Are displayed on the taskbar. Implement modeless progress dialogs so that they continue to run even if the owner window is closed. In this example, the file copy continues even if the owner window is closed. Provide a command button to halt the operation if it takes more than a few seconds to complete, or has the potential never to complete. Label the button Cancel if canceling returns the environment to its previous state leaving no side effects ; otherwise, label the button Stop to indicate that it leaves the partially completed operation intact.

You can change the button label from Cancel to Stop in the middle of the operation, if at some point it isn't possible to return the environment to its previous state. In this example, halting the problem diagnosis has no side effect. Provide a command button to pause the operation if it takes more than several minutes to complete, and it impairs users' ability to get work done.