Creating InfoPath Form Templates That Work With InfoPath Forms Services
Browser-compatible forms deployed to Microsoft SharePoint Server 2010 with InfoPath Forms Services support features and controls that cover the majority of InfoPath form usage scenarios. However, browser-compatible forms delivered by InfoPath Forms Services do not support all InfoPath features. Some features and controls are not implemented on the server. Other features do not have a meaningful representation on the server.
The sections that follow specify which features are supported in browser-compatible forms, which features cannot be used in browser-compatible forms, and which features can be specified for browser-compatible forms, but will not function in a Web browser.
The following sections list the features that are supported by browser-compatible form templates deployed to InfoPath Forms Services that can open in both InfoPath and the browser.
The following controls are supported in form templates that can be opened both InfoPath and the browser.
Rich Text Box (only editable in Microsoft Internet Explorer)
Drop-Down List Box
Date Picker (Rendered as a text box on browsers other than Internet Explorer)
Other declarative features that work in both InfoPath and the browser:
Simple rules, calculations, and data validation are enabled and run in the browser using JScript. Complex rules, calculations, and data validation require a postback to perform these operations on the server.
Business logic code must be based on the InfoPath managed code object model provided by the Microsoft.Office.InfoPath namespace. Business logic code running on the server is subject to the following restrictions:
Because each server request may be handled by a different front end and because InfoPath Forms Services will load only one instance of the business logic, programmers cannot rely on data stored in global or static variables. To accommodate this, business logic must store state into a property bag, access to which is provided by the FormState property.
A subset of the members of the Microsoft.Office.InfoPath namespace provide features, such as Information Rights Management (IRM), that are not supported on the server. For more information on which object model members are and are not supported, see the "Object Model Members that Work in InfoPath and InfoPath Forms Services" and "Object Model Members that Work Only in InfoPath" sections later in this topic.
Business logic written in VBScript, JScript, and the InfoPath 2003-compatible object model provided by members of the Microsoft.Office.Interop.InfoPath.SemiTrust namespace is not supported on the server.
The following sections list the features that are not supported by browser-compatible form templates deployed to InfoPath Forms Services that can open in both InfoPath and the browser.
When using the Design Checker feature in InfoPath design mode to confirm compatibility with InfoPath Forms Services, features that are not supported will produce either errors or messages. Features that produce errors will prevent the form template from being published as a browser-enabled form. Features that produce messages are allowed, but that particular feature will not run when the form is opened in a browser.
The following controls and control features are not supported in form templates that can be opened both InfoPath and the browser.
Filters on repeating controls
Horizontal Repeating Table
Multiple-Select List Box
Repeating Choice Group
Repeating Recursive Section
Other Features That are Not Supported or Not Fully Supported by InfoPath Forms Services
Other features that are not supported on InfoPath Forms Services:
Placeholder text in controls. For example, "Click here to enter text" (no text is shown in the browser)
Database data connections are limited to read-only access to SQL server databases
Digital signature extensibility through the object model. Digitally signing on the server is supported through an ActiveX control which runs only in Microsoft Internet Explorer.
Human Workflow Services (HWS) integration. HWS has been deprecated by BizTalk server
XML Schema error message overrides. This is a rarely used feature which allows the form designer to provide a different message than the one provided by MSXML or System.Xml when a document doesn't validate (generally because of a type mismatch). This feature is not supported in the designer user interface and requires hand editing of the form definition (.xsf) file.
Features with No Direct Parallel on the InfoPath Forms Services
Other features that are not supported on InfoPath Forms Services:
Pop-up dialogs during modeless validation
Auto-Save, Crash Detection and Recovery
Export to Excel
Tablet / Ink Features including Ink Picture control
Undo / Redo
Information Rights Management (IRM)
Modal dialogs from business logic
XSLT extensibility (xd:preserve blocks)
Offline query caching
Restricted security mode
These features do not produce any error or message notifications when using the Design Checker feature in InfoPath design mode.
InfoPath provides a new managed-code object model with a core set of functionality for creating custom business logic in form templates. When deployed to SharePoint Server 2010 with InfoPath Forms Services, business logic created using this new object model will run in both a Web browser and in InfoPath. Optionally, you can write business logic that uses an additional level of functionality available from this object model that will run only in form templates opened for editing in InfoPath 2010.
To write business logic that will run when a form is opened in both a Web browser and in InfoPath, select the Enable browser-compatible features only check box on the Design a Form Template dialog box when creating a new form template. To write business logic that can use additional functionality only when opened in InfoPath, clear the Enable browser-compatible features only check box when creating a new form template. You can also change this setting after creating a form template, by clicking Change Compatibility Settings on the Design Checker task pane, and then selecting or clearing the Design a form template that can be opened in a browser or InfoPath check box. If you choose to create a browser-compatible form template, the compiler will display an error if you have used any classes or members that are not compatible with InfoPath Forms Services.
After publishing a browser-enabled form template that contains managed code to SharePoint Server 2010 with InfoPath Forms Services, or to a shared location, the form template must be uploaded and approved by a server administrator before it will be allowed to run.
The following classes and members of the InfoPath managed code object model provided by the Microsoft.Office.InfoPath namespace are supported in both InfoPath and InfoPath Forms Services.
The following classes and members of the InfoPath managed code object model provided by the Microsoft.Office.InfoPath namespace are supported only in InfoPath 2010.
These object model members can be used in the code of a browser-enabled form template, if you write conditional logic that determines whether the form is opened in the browser or InfoPath 2010 . For more information, see How to: Write Conditional Logic That Determines the Run-time Environment.