See this example of this technique in the Feature Explorer. RPC DMI is an alternative approach to using the RPCManager class directly to send requests to some actionURL where your server code would receive a generalized request object , to be routed to appropriate methods yourself. Method Invocation Smart GWT can pass a set of stock context variables to your DMI method and also performs some type adaptation logic to make this interface more flexible. For DataSource DMI, you can declare your method to take any number of the following types of arguments and they will be passed to you: javax.
HttpServletRequest javax. HttpServletResponse javax. ServletContext javax. HttpSession com. RPCManager com. DSRequest com. From there you just need to send the string containing csv data to server, etc Last edited by ynaik ; 29 Jul , JavaScriptException: Error : Could not complete the operation due to error c00ce Please help. Copyright and beyond Isomorphic Software. All Rights Reserved. Yes No. OK Cancel. A shouldSaveValue:false item should be given a value either via FormItem. Providing a value via form.
Note that if an item is shouldSaveValue true, but has no name, a warning is logged, and shouldSaveValue will be set to false. This component is an AutoChild named "uploadItem". Class level method to set the default properties of this class. If set, then all existing and subsequently created instances of this class will automatically have default properties corresponding to the properties of the class instance passed to this function.
This is a powerful feature that eliminates the need for users to create a separate hierarchy of subclasses that only alter the default properties of this class.
Note: This method is intended for setting default attributes only and will affect all instances of the underlying class including those automatically generated in JavaScript. This method should not be used to apply standard EventHandlers or override methods for a class - use a custom subclass instead.
Calling this method after instances have been created can result in undefined behavior, since it bypasses any setters and a class instance may have already examined a particular property and not be expecting any changes through this route. FileItem java. String name. String title. String accept A comma-separated list of valid MIME types, used as a filter for the file picker window. String editProxyConstructor Default class used to construct the EditProxy for this component when the component is first placed into edit mode.
Boolean multiple When true, allow the file-selection dialog shelled by the browser to select multiple files. When you call DynamicForm. Client-side callbacks, such as the callback passed to saveData , fire normally.
Note that FileItems cannot be programmatically populated - this is a browser security restriction over which we have no control. This restriction means that we are unable to populate a FileItem with the correct filename when a form is editing an existing record. Also, when you call saveData on a form that is editing a new record, the FileItem will be cleared on successful completion of the saveData call; this is a side-effect of the form being placed into "edit" mode.
In both of these cases, the fact that the FileItem has been cleared will not cause the persisted binary data to be removed by Smart GWT Server on subsequent calls to setData. If the user selects another file, it will overwrite the existing one; if the FileItem is left blank, the server simply ignores it. If you actually wish to wipe out the value of a binary field, call updateData on the underlying dataSource, passing an explicit null value for the binary field.
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