Why Submit in Visual Studio .NET

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Figure 81: Dialog asking the user whether to save or submit the form
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Sometimes hitting Ctrl+S to save is a nervous habit When a user saves a form that has submit enabled, InfoPath asks if he or she really meant to save or would rather submit (Figure 81) This reiterates the nal purpose of the form: to submit data to a data source This dialog also helps to reveal the fact that the form supports submit if that wasn t clear to the user from the form s design
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A browser-enabled form template running in the browser does not use the dialog shown in Figure 81 when the user saves the form
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In some cases, you may never want users to save your form and only want the data submitted Aren t most Web forms like that Sure, some of them allow you to come back later, but the majority of Web-based forms are simple enough that they can be lled out in a single sitting There are also other reasons why you might want to prevent users from saving the form, for example, if the XML contains sensitive data or if the external data source to which the form submits, such as a SharePoint library, can support multiple submits Let s see how we can disable save in the next section
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Using the Form-Only Model to Disable Save The Form-only model, as its name suggests, is a series of design-time settings geared to make your template run most like a form in the strict sense of the word That means some InfoPath-speci c features that are not critical for lling out forms can be disabled for a speci c form template
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8: Submitting Form Data
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Figure 82: Settings for enabling and disabling certain features for users, such as the ability to save a form
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To access the Form-only features, go to the Form Options dialog on the Tools menu in design mode and click on the Open and Save category Figure 82 shows the corresponding dialog The checkboxes at the top (in the Enable features section) control settings such as allowing users to save, print, or send forms to a mail recipient By default, all features are enabled When you uncheck a feature, its corresponding entry points will be disabled when users ll out the form, so they will not have access to that feature
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To disable Save and Save As, among other options, use the Browser category on the Form Options dialog to exclude commands on the browser form s toolbar
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Disabling a Feature Does Not Turn It Off
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Disabling a feature means that all entry points (from the user s perspective) are disabled However, you can still invoke the feature by using custom form code Some features, such as Autosave, are not accessible via form code We ll review InfoPath programmability in the advanced chapters of this book
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Unchecking the Save and Save As item in a form that supports submit might be helpful to guide a user away from save and toward submit The decision to disable save depends largely on your form design and user scenario Remember that if you decide to go ahead with disabling save, there is no way the user can override it when lling out the form The only way to reenable save is to come back to the Open and Save tab to check the box But the form can t change dynamically while it s being lled out, so if you restored the ability to save, it wouldn t happen until the form template was reopened (which would load the latest form template with save enabled)
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Issues with Data Validation and Submitting Forms We ve learned all about data validation in previous chapters and how it helps to keep our form data as we intended But we also know that validation errors aren t hard errors That is, just because there s an error doesn t mean the user can t keep lling out other parts of the form The form is allowed to be in a so-called indeterminate state for as long as the user chooses One of the few motivations behind a user actually xing validation errors in a form is so he or she can submit Submitting a form is the only action that requires the data to be free of validation errors Before you go retro tting your forms with all sorts of validation, we want you to keep in mind a couple form design problems surrounding submit Failure to check for these potential problems could contribute to user confusion or completely block the form from ever being submitted What we re about to discuss relates to how data validation operates solely on the data while the user can see only what s in the form s views The rst issue involves a form template that has multiple views and could confuse or even block the user upon submit Take a job application
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