ASP.Net TreeView的滚动选择的节点进入视野 [英] ASP.Net TreeView Scrolling the selected node into view

问题描述

有没有办法来一个ASP.Net的TreeView的选定节点滚动到视图回传后？

Is there a way to scroll the selected node of an ASP.Net TreeView into view after a postback?

在我parrticular情况下控制在每次回发后重新填充。

In my parrticular scenario the control is repopulated after each postback.

谢谢！

推荐答案

我想通了。 TreeView控件创建客户端的JavaScript对象。它被命名为任何你叫树视图以'_Data追加。对象可以让你所选择的节点的引用。

I figured it out. The TreeView control creates a javascript object on the client. It is named whatever you called the treeview with a '_Data' appended. The object lets you get a reference to the selected node.

下code使用ASP.Net AJAX扩展。只记得到TreeView名称更改为任何你叫你的。

The code below uses the ASP.Net Ajax extensions. Just remember to change the TreeView name to whatever you called yours.

var name = myTreeView_Data.selectedNodeID.value;
var selectedNode = $get(name);

if(selectedNode)
{ 
selectedNode.scrollIntoView(true);
}

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