Ext.Net Development Guidelines

Hi,

Can somebody tell which are the development guidelines we should know, when we're developing with Ext.Net?

I found that several methods are not working from the code-behind.

Example: we can't add nodes to the TreePanel from code-behind beyond the Page_Load event. A client-side event needs to be fired to modify controls from code-behind.

The same happens to me, with the store and other controls.

It seems like I'm not understanding how to work with Ext.Net.

Thanks,
Ariel

Please post a simplified code sample demonstrating how to reproduce your scenario.

Here's a sample built in code-behind, see

https://examples1.ext.net/#/TreePane...in_CodeBehind/

Hope this helps.

Quote:

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Originally Posted by asztern

beyond the Page_Load event

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This might depend on how far beyond the Page_Load event you are running code. Which event are using?

Hello Geoffrey,

This is not related to an specific code. I found this several times.

In this case, I've created a User Control to bind data to a TreePanel.

I've a DataSource property and a DataBind method (in my TreePanel user control).
The DataBind method is adding the nodes to the TreePanel root.

If both are executed when the Page.IsPostBack = false, everything works great.

The problem happens when the binding is done in a different instance.

Example:
I've a grid and a user control for editing records.
The user control for edition, has implemented my other user control (the TreePanel user control).
When a user clicks on the grid, I'm showing a Window with my edition user control.
The edition user control, is binding my TreePanel user control, but nothing happens (the nodes are being added).

If I move the code to the Page_Load of the edition user control, the Tree is rendered ok.

That's why, I'm asking some guidelines to work with Ext.Net.

Thanks for your help,
Ariel

I would like to know some general guidelines as well. Sometimes the examples page just doesn't suffice to explain some things. XD