Ajax - Revision history

Ghenne at 15:39, 25 February 2021

2021-02-25T15:39:29Z

← Older revision		Revision as of 15:39, 25 February 2021
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	== Description ==		== Description ==

	The Ajax function is used to get or receive data from a server. It is based on [[:wikipedia:XMLHttpRequest\|XMLHttpRequest]]. This function will only work when running from a server (including the built in AppStudio local server) and is subject to the [[wikipedia:Same-origin_policy\|same-origin policy]] in some cases. It is a wrapper for [https://api.jquery.com/jQuery.ajax/ jQuery's $.ajax() function]. You will need to use a server with PHP (or other server side scripting) enabled: ~~Volt~~ does not have PHP enabled.		The Ajax function is used to get or receive data from a server. It is based on [[:wikipedia:XMLHttpRequest\|XMLHttpRequest]]. This function will only work when running from a server (including the built in AppStudio local server) and is subject to the [[wikipedia:Same-origin_policy\|same-origin policy]] in some cases. It is a wrapper for [https://api.jquery.com/jQuery.ajax/ jQuery's $.ajax() function]. You will need to use a server with PHP (or other server side scripting) enabled: VoltServer does not have PHP enabled.

	For much more on using the Ajax function, see [[Ajax made Simple\|Ajax Made Simple]].		For much more on using the Ajax function, see [[Ajax made Simple\|Ajax Made Simple]].

Ghenne at 19:28, 28 May 2019

2019-05-28T19:28:36Z

@@ Line 91: / Line 91: @@
 </syntaxhighlight>
 </tabber>
 == Related Items ==

Ghenne at 19:27, 28 May 2019

2019-05-28T19:27:59Z

← Older revision		Revision as of 19:27, 28 May 2019
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	See also samples Ajax and AjaxPost for more information.		See also samples Ajax and AjaxPost for more information.

			== Example ==

			<tabber>
			JavaScript=
			<syntaxhighlight lang="JavaScript">
			//Ajax example
			req = Ajax("/sendData_ajax.php?myText=" + encodeURIComponent(txtSend.value));
			if(req.status == 200) { //success
			txtResponse.value = req.responseText;
			} else { //failure
			txtResponse.value = "Error: " + req.err.message;
			}

			//Sample POST call
			req = Ajax("/sendData_ajaxPost.php" , "POST" , "myText=" + encodeURIComponent(txtSend.value));

			</syntaxhighlight>
			\|-\|
			BASIC=
			<syntaxhighlight lang="vb.net">
			'Ajax example
			req = Ajax("/sendData_ajax.php?myText=" & encodeURIComponent(txtSend.value))
			If req.status = 200 Then 'success
			txtResponse.value = req.responseText
			Else 'failure
			txtResponse.value = "Error: " & req.err.message
			End If

			'Sample POST call
			req = Ajax("/sendData_ajaxPost.php", "POST", "myText=" & encodeURIComponent(txtSend.value))

			</syntaxhighlight>
			</tabber>

	== Example (BASIC) ==		== Example (BASIC) ==

Ghenne: /* Description */

2019-05-28T19:26:00Z

Description

← Older revision		Revision as of 19:26, 28 May 2019
Line 5:		Line 5:
	== Description ==		== Description ==

	The Ajax function is used to get or receive data from a server. It is based on [[:wikipedia:XMLHttpRequest\|XMLHttpRequest]]. This function will only work when running from a server (including the built in AppStudio local server) and is subject to the [[wikipedia:Same-origin_policy\|same-origin policy]] in some cases. It is a wrapper for [https://api.jquery.com/jQuery.ajax/ jQuery's $.ajax() function]. You will need to use a server with PHP enabled: ~~the AppStudio Server~~ does not have PHP enabled.		The Ajax function is used to get or receive data from a server. It is based on [[:wikipedia:XMLHttpRequest\|XMLHttpRequest]]. This function will only work when running from a server (including the built in AppStudio local server) and is subject to the [[wikipedia:Same-origin_policy\|same-origin policy]] in some cases. It is a wrapper for [https://api.jquery.com/jQuery.ajax/ jQuery's $.ajax() function]. You will need to use a server with PHP (or other server side scripting) enabled: Volt does not have PHP enabled.

	For much more on using the Ajax function, see [[Ajax made Simple\|Ajax Made Simple]].		For much more on using the Ajax function, see [[Ajax made Simple\|Ajax Made Simple]].

Ghenne: /* URL */

2015-11-30T18:48:44Z

URL

← Older revision		Revision as of 18:48, 30 November 2015
Line 15:		Line 15:

	Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:		Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:
	http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText= & encodeURIComponent(Now)		"http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" & encodeURIComponent(Now)

	=== method ===		=== method ===

Ghenne: /* URL */

2015-11-30T18:48:21Z

URL

← Older revision		Revision as of 18:48, 30 November 2015
Line 15:		Line 15:

	Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:		Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:
	"http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" & encodeURIComponent(Now)		http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText= & encodeURIComponent(Now)

	=== method ===		=== method ===

Ghenne: /* URL */

2015-11-30T18:47:57Z

URL

← Older revision		Revision as of 18:47, 30 November 2015
Line 15:		Line 15:

	Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:		Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:
	http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" & encodeURIComponent(Now)		"http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" & encodeURIComponent(Now)

	=== method ===		=== method ===

Ghenne: /* URL */

2015-11-30T18:47:29Z

URL

← Older revision		Revision as of 18:47, 30 November 2015
Line 15:		Line 15:

	Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:		Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:
	http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" + encodeURIComponent(Now)		http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" & encodeURIComponent(Now)

	=== method ===		=== method ===

Ghenne: /* URL */

2015-11-30T18:46:46Z

URL

← Older revision		Revision as of 18:46, 30 November 2015
Line 13:		Line 13:
	http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth		http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth
	will call the PHP script named getCustomerInfo.php, passing the parameter customer=Knuth. Data passed in URLs must be encoded properly. This is done with [[EncodeURIComponent/decodeURIComponent\|encodeURIComponent]].		will call the PHP script named getCustomerInfo.php, passing the parameter customer=Knuth. Data passed in URLs must be encoded properly. This is done with [[EncodeURIComponent/decodeURIComponent\|encodeURIComponent]].

			Some browsers will not let you issue the same Ajax query repeatedly (iOS Home Screen apps, for example - an error 412 is returned). The solution is to add the time to the URL, which will be unique:
			http://www.nsbasic.com/getCustomerInfo.php?customer=Knuth?myText=" + encodeURIComponent(Now)

	=== method ===		=== method ===

Ghenne: /* settingObject */

2015-11-30T18:43:46Z

settingObject

← Older revision		Revision as of 18:43, 30 November 2015
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	''failFunction'', if supplied, is a function to be executed if the Ajax() call fails.		''failFunction'', if supplied, is a function to be executed if the Ajax() call fails.

	=== ~~settingObject~~ ===		=== settingsObject ===
	''settingsObject'' is an object containing all the settings, in the form {data: "some data", type: "GET", success: AjaxWorked}. For a complete list of possible settings, see the [https://api.jquery.com/jQuery.ajax/ $.ajax docs].		''settingsObject'' is an object containing all the settings, in the form {data: "some data", type: "GET", success: AjaxWorked}. For a complete list of possible settings, see the [https://api.jquery.com/jQuery.ajax/ $.ajax docs].

	=== returned value ===		=== returned value ===