ajax-requests-queueing.md

title	page_title	description	slug	previous_url	tags	published	type	category	res_type
Ajax Requests Are Queueing When Using the AjaxManager	Ajax Requests Are Queueing When Using the AjaxManager	Learn how to handle the scenario when using the AjaxManager, the Ajax requests are queueing in Telerik UI for ASP.NET AJAX.	ajaxmanager/how-to/ajax-requests-queueing	ajax/how-to/ajax-requests-queueing, controls/ajaxmanager/how-to/ajax-requests-queueing	telerik, asp, net, ajax, manager, requests, are, queueing	true	how-to	knowledge-base	kb

Environment

Product

Progress® Telerik® UI for ASP.NET AJAX AjaxManager

Description

How can I prevent the cancellation of the ongoing AJAX request when I try to initiate another request prior to receiving the response from the first one?

Solution

By design, the ASP.NET AJAX Framework cancels the ongoing AJAX request if you try to initiate another one prior to receiving the response from the first one. To change this behavior, set the RequestQueueSize property to a value greater than zero. In this way, you will enable the queueing mechanism of the RadAjax and will be able to complete the ongoing request and initiate the pending requests in the control queue.

If the queue size equals RequestQueueSize, meaning the queue is full, an attempt for new AJAX requests will be discarded. By default, the queue size value is 0 and queueing is disabled.

protected void Page_Load(object sender, EventArgs e)    
	
	{        
	    
		<RadAjaxControl>.RequestQueueSize = 3;    
	
	}
				

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
	<RadAjaxControl>.RequestQueueSize = 3
End Sub

See Also

• [AjaxManager Overview]({% slug ajaxmanager/overview %})

• [AjaxPanel Overview]({% slug ajaxpanel/overview %})

• [AJAX Request: Client-Side Programming Overview]({% slug ajaxmanager/client-side-programming/overview %})