Figure 174: Customizing toolbar buttons for a browser-enabled form template in .NET framework

Creating QR Code 2d barcode in .NET framework Figure 174: Customizing toolbar buttons for a browser-enabled form template
Figure 174: Customizing toolbar buttons for a browser-enabled form template
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form data with the server Clicking it at any time when lling out a form can never negatively affect your data As we mentioned, it s useful to add this button to your form if there s a reason for the user to have manual control over the refreshing of form data Keep in mind that it s not a free lunch to expose this button to your users Despite its harmless demeanor, every click to the Update button results in the form passing data from the browser to the server and then the server returning the updated form back to the browser Extra postback requests to the server potentially reduce its ability to support its otherwise maximum number of simultaneous users We ll look more carefully at the effects of form features and behaviors, such as postbacks, toward the end of this chapter If your browser-enabled form template does not show toolbars (ie, you unchecked both of the Show toolbar items shown in Figure 174), the Update button will obviously not be available This may be the case if your browser-based form is hosted in an ASPNET Web page In hosting a form, however, the toolbars may disrupt the overall ow and layout of your page (Hosting a browser form is a topic of 18) If you still need update functionality but don t have a toolbar, you have another option A Button control can provide the same update functionality offered by the Update toolbar button When you re designing a browser-enabled template, the Button control offers a new action called Update Form (Figure 175)
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Figure 175: Configuring a Button control to use the Update Form option for a browser-enabled form template
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17: Advanced Forms Ser vice s
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The Update Form action does not apply to forms lled out in InfoPath As a result, all Button controls with the action set to Update Form are not visible in InfoPath
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Designing Accessible Forms InfoPath makes it easy to design sleek and functional forms for collecting data Sometimes form designers get a little carried away with making their templates overcomplicated or too feature-rich Obviously, it s important to remember your audience when designing your forms But no matter how much effort you may dedicate to improving your template, someone is bound to complain about its usability We think form usability is an underrated topic in design considerations, especially in forms found on the Internet Given the wider reach of audiences with Forms Services over InfoPath, we believe that a successful browser-enabled form is one that is easy for everyone to use 4, in the Control Properties section, discusses various settings for con guring form controls In particular, the subsection about the Advanced tab introduces the ScreenTip, Tab index, and Access key settings (Figure 176) We can t stress enough the importance of lling in these elds with accurate information to help guide users who ll out your forms Without these elds data, it can be particularly troublesome (or nearly impossible) for users with special needs to use your form Some people may incorrectly believe that making a form accessible is synonymous with using only a keyboard While keyboard-only access is a basic litmus test, a conventional keyboard and mouse cannot be assumed Many accessibility tools leverage these properties (ScreenTip in particular) to help users with various disabilities or impediments Some of them even interface with special equipment, such as Braille keyboards, to convey browser information
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Figure 176: Accessibility control settings
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NOTE
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See 4 for more information on designing accessible InfoPath form templates
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Microsoft SharePoint Server for Search indexes all content on the SharePoint site For InfoPath forms, Search crawls all promoted properties and goes only one level deep in the form data You should consider promoting any properties that may be helpful when using search to query your forms for data Remember that you will receive search results only for those items in which you have permission to at least read
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