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this code works, but what is happening now is when the parent nodes are loaded initially, there is no expand icon next to it. i want to have an expand icon next to the parent node so that the users know that there are child nodes below the particular parent node, if any.
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this code works, but what is happening now is when the parent nodes are loaded initially, there is no expand icon next to it. i want to have an expand icon next to the parent node so that the users know that there are child nodes below the particular parent node, if any.

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I have &nbsp;web page and this web page has one tree view control under an update panel.<br />
now right now i am loading all the nodes at once. but this makes the page really slow as there are tons of records in the database from where tree view is picking data.<br />
<br />
I want to know how can i load the child nodes only when the parent node is selected.<br />
<br />

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I have  web page and this web page has one tree view control under an update panel.
now right now i am loading all the nodes at once. but this makes the page really slow as there are tons of records in the database from where tree view is picking data.

I want to know how can i load the child nodes only when the parent node is selected.



how to load child nodes of tree view when parent node is selected

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications