确定是否与这部分回发发生在页面加载()的JavaScript在.NET [英] Determine if and which partial postback occurred in pageLoad() with Javascript in .NET
问题描述
据我了解,部分页面的更新与ASP.NET AJAX导致要调用的javacript页面加载()事件处理程序。
As I understand it, partial page updates with ASP.NET AJAX cause the javacript pageLoad() event handler to be invoked.
我的问题:有没有从页面加载()函数...
My question: Is there a generic way of determining in Javascript from within the pageLoad() function...
我)如果回发是一个局部页面更新与否。
i) If the postback was a partial page update or not.
二)如果是这样,哪个面板进行了更新。
ii) If so, which panel was updated.
我的应用程序使用.NET的UpdatePanel和放大器的组合;的Telerik RadAjaxPanels。我在寻找一个通用(preferably JavaScript)的解决方案,它不要求我指定一个唯一的客户端回调函数,每个小组,也没有设置一些标志,从每个回发事件处理程序中,以确定自己的客户端 - 侧。
My application uses a combination of .NET UpdatePanels & Telerik RadAjaxPanels. I'm looking for a generic (preferably javascript) solution which doesn't require me to specify a unique client-side callback function for each panel, nor set some flag from within each postback event handler to identify itself to the client-side.
我希望这是有道理的,
感谢。
推荐答案
要或确定是否回发是部分更新没有,你可以使用 ScriptManager.GetCurrent(this.Page).IsInAsyncPostBack
。这里有一个例子:
To determine if the postback was a partial update or not, you can use ScriptManager.GetCurrent(this.Page).IsInAsyncPostBack
. Here's an example:
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
// get a reference to ScriptManager and check if we have a partial postback
if (ScriptManager.GetCurrent(this.Page).IsInAsyncPostBack)
{
// partial (asynchronous) postback occured
// insert Ajax custom logic here
}
else
{
// regular full page postback occured
// custom logic accordingly
}
}
}
和获取导致回发更新面板,你可以看看 ScriptManager.GetCurrent(页).UniqueID
并进行分析。下面是这样做的一个例子:
And to get the Update Panel that caused the PostBack, you can look into ScriptManager.GetCurrent(Page).UniqueID
and analyze it. Here's an example of doing that:
public string GetAsyncPostBackControlID()
{
string smUniqueId = ScriptManager.GetCurrent(Page).UniqueID;
string smFieldValue = Request.Form[smUniqueId];
if (!String.IsNullOrEmpty(smFieldValue) && smFieldValue.Contains("|"))
{
return smFieldValue.Split('|')[0];
}
return String.Empty;
}
参考文献:
- http://forums.asp.net/t/1562871.aspx/1
- <一个href="http://stackoverflow.com/questions/3821569/get-asp-net-control-which-fired-a-postback-within-a-ajax-updatepanel">Get ASP.NET控制,燃煤中的AJAX的UpdatePanel 回传
- http://forums.asp.net/t/1562871.aspx/1
- Get ASP.NET control which fired a postback within a AJAX UpdatePanel
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