[CLOSED] ClientID of lazy rendered control

[pschojer]

I`ve implemented a CheckTree extension used within an ComboTree extension for Coolite. Just recently i posted here, that i was having some problems with loading data from post (look at this post: http://forums.ext.net/showthread.php?5644).

My current problem is that the CheckTreePanel does not have a correct ClientID assigned in PageLoad-Event. I think this is because the control performs lazy rendering.
Is it possible to force the CheckTree to get a ClientID earlier in page lifecyle (so that it can be used in PageLoad also) ?

I`ve attached a sample.

Thx,
Peter

[geoffrey.mcgill]

Please re-attach sample without including the .dll's. Within your post, just let us know which version of the toolkit you are using.

[pschojer]

Hi,

i`ve attached a sample without dlls. I last checked out Coolite trunk on the 11th November (just after this bug was fixed: http://forums.ext.net/showthread.php?5726) and the dll itself is version 0.8.2.25345. So it has to be a bit newer than trunk version 2156 which i used before the bug was fixed. But I also had the same problem with those version i think.

Thank you !

Thx,
Peter

[Vladimir]

Hi,

Page_Load fires in the page early then OnLoad in controls.
You add CheckedTree to the controls collection in the OnLoad of ComboTree control therefore in the Page_Load that tree has no ClientID still. You have to add tree to the controls collection early (for example, try OnInit instead OnLoad)

[pschojer]

Doesn`t work either.... :-/

[Vladimir]

Hi,

What you mean 'doesn't work' ? What result do you have? Please provide more details

[pschojer]

Hello vlad,

i`ve added the Tree-Control earlier in page lifecycle as you suggested (of course the three is still defined in page markup).

protected override void OnInit(EventArgs e)
{
    // now adding tree here
    this.Controls.Add(Tree[0]);


    if (!this.LazyItems.Contains(Tree[0]))
    {
        this.LazyItems.Add(Tree[0]);
    }


    base.OnInit(e);
}


protected override void OnLoad(EventArgs e)
{
    InstanceOfAttribute attr = (InstanceOfAttribute)Attribute.GetCustomAttribute(Tree[0].GetType(),typeof    (InstanceOfAttribute));
    ClassOfTree = attr.ClassName;

    // removed adding tree to controls from here (moved to OnInit)


    base.OnLoad(e);
}

I also tried not to add the tree to the LazyItems-Collection but that didn`t help. The tree still does not have a valid ClientID in PageLoad-Event.

Do you have any ideas ?

Thx,
Peter

[Vladimir]

Hi,

I made the same thing with your example and Tree has valid ClientID.
What ClientID do you have?

[pschojer]

Hello vlad,

strange, very strange. The ClientId of the tree still is unintialized (therefore it is "CheckTreePanel1"). I only modified the sample posted here as described above (in ComboTree.cs). I haven`t performed any other modifications.

I´m using SVN build 2163 of Coolite (0.8.x).

Thx,
Peter

[Vladimir]

Hi,

For your example the "CheckTreePanel1" is valid ClientID because the control placed inside page only (no master page or user control).