X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/25ef3491bd9ae007ff1fc2b0d7943e6eaaccf775..b37ceabb82336ee82757cd32efe353cfab8ec267:/docs/output/Ext.data.Connection.html?ds=sidebyside diff --git a/docs/output/Ext.data.Connection.html b/docs/output/Ext.data.Connection.html index 98ed27c5..478bc85b 100644 --- a/docs/output/Ext.data.Connection.html +++ b/docs/output/Ext.data.Connection.html @@ -1,33 +1,34 @@ -
Properties Methods Events Config Options Direct Link 
Observable
  Connection

Class Ext.data.Connection

Package:Ext.data
Defined In:Connection.js
Class:Connection
Subclasses:Ajax
Extends:Observable

The class encapsulates a connection to the page's originating domain, allowing requests to be made -either to a configured URL, or to a URL specified at request time.

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Requests made by this class are asynchronous, and will return immediately. No data from -the server will be available to the statement immediately following the request call. -To process returned data, use a -success callback -in the request options object, -or an event listener.

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File Uploads

File uploads are not performed using normal "Ajax" techniques, that -is they are not performed using XMLHttpRequests. Instead the form is submitted in the standard -manner with the DOM <form> element temporarily modified to have its -target set to refer -to a dynamically generated, hidden <iframe> which is inserted into the document -but removed after the return data has been gathered.

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The server response is parsed by the browser to create the document for the IFRAME. If the -server is using JSON to send the return object, then the -Content-Type header -must be set to "text/html" in order to tell the browser to insert the text unchanged into the document body.

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Characters which are significant to an HTML parser must be sent as HTML entities, so encode -"<" as "&lt;", "&" as "&amp;" etc.

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The response text is retrieved from the document, and a fake XMLHttpRequest object -is created containing a responseText property in order to conform to the -requirements of event handlers and callbacks.

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Be aware that file upload packets are sent with the content type multipart/form -and some server technologies (notably JEE) may require some custom processing in order to -retrieve parameter names and parameter values from the packet content.

Config Options

Config OptionsDefined By
 autoAbort : Boolean
Whether this request should abort any pending requests. (defaults to false)
Connection
 defaultHeaders : Object
An object containing request headers which are added -to each request made by this object. (defaults to undefined)
Connection
 disableCaching : Boolean
True to add a unique cache-buster param to GET requests. (defaults to true)
Connection
 disableCachingParam : String
Change the parameter which is sent went disabling caching -through a cache buster. Defaults to '_dc'
Connection