Accessing Masterpage Ajax control from Web user control

Hi all,

I have created a master page in asp2.0 and i have placed ModalPopupExtender in that. I have written a custom Textbox control. In that text Changeded event i have created reference to the Masterpage modalpopupextender using Findcontrrol method. But i cant able to loop through tge Master page controls Properly. I am unable to findthe controls with its client id. Can anybody know how to solv this.

My aim is to call the modalpopupextender show event from the custom control.

<cc1:ModalPopupExtenderID="ModalPopupExtender1"runat="server"TargetControlID="btnForLookup"PopupControlID="LookupPanel"BackgroundCssClass="modalBackground">

Private

Sub AHNLookup_Click(ByVal senderAsObject,ByVal eAs System.EventArgs)HandlesMe.Click

{ Dim contr as ModalpopupExtender

Contr = Me.page.master.FindControls("ModalPopupExtender1")

Constr.show() -->Gives error as Null object.

}

====

Thanks in advance.

S.Sathishraja

Hi,

Please try to find it in a recursive way.

public?Control FindControlRecursive(Control root, string id)
{
????if (root.ID == id)
????{
????????return root;
????}

????foreach (Control c in root.Controls)
????{
????????Control t = FindControlRecursive(c, id);
????????if (t != null)
????????{
????????????return t;
????????}
????}

????return null;
}
Hope this helps.

Accessing Master page control from child page

Hi,

In my application I have implemented a customized error control, which gets visible on any error raised.

Issue is, in one of the page where we have implemnted Update Panel, and onClick of a button I wants to raise a error on the control in Master page.

The Page object has a Master property that will reference the properties of the master page. Note that you will need to apply the MasterType directive to your page or use the Page.MasterPageFile property to reference the master page properties.

hi,

You can retrieve the master page controls by using this.masterPage property.

Hope this helps

Hi,

In all my other pages I am able to access the properties of master page, but not able to access the property for the page where Update panel is implemented.

hello.

in my opinion, this is what you should do:

1. create an interface which has the properties/methods you want to access.

2. change the master so that it implements the interface. if you want to get a property from q control, don't forget to call ensurechildcontrols() beforeaccessing the control on the property code

3. on your page, start by getting a reference to the master and see if it implements the required interface. if it does, then just cast the master reference to the interface and use it to access the properties/methods you need.

Access User Controls in Web Service

Hello all,

We have a custom control that has many custom properties and methods. Currently this control is being loaded through the Master page and it is working just fine. Now there is a need to load this control through a web service.

Since the control needs to be loaded through a web service, the web service does not have any information on this custom control and its properties/methods. We can only load this custom control as a System.Web.UI.UserControl, and we cannot also cast this UserControl as a custom control because the web service does not know anything about this custom control.

I read this article about rendering user controls through web service by Scott Gutherie but it only talks about user control and not custom controls and custom properties and methods.

http://weblogs.asp.net/scottgu/archive/2006/10/22/Tip_2F00_Trick_3A00_-Cool-UI-Templating-Technique-to-use-with-ASP.NET-AJAX-for-non_2D00_UpdatePanel-scenarios.aspx

Does anybody have any ideas on how to access the custom control in a web service?

Thanks.

Hi,

For custom control, it's necessary to add reference to it in the web application. And instantiate it with its actual constructor.

Then, you may render it in a similar way as Scott Gutherie has shown.

Access to ScriptManager from into webcontrol

Hi, I've a UpdatePanel into my personal webcontrol, and one scriptmanager what can be into webform, into master page, or into content page.
I need have access to ScriptManager from a method of my personal web control. Is it possible?

Hi,

yes it is. You can call System.Web.UI.ScriptManager.GetCurrent(this.Page) to retrieve a reference to the ScriptManager control.

Thank you Garbin!!!!!, it's wonderful!!!!!

Greetings, Diego

about ScriptManager

if there was a user control (ascx) which have a ScriptManager control in a page(aspx), would there need a ScriptManager in my page?

about master page?? if have a ScriptManager control , how can i deal with its son page?

thankyou

Hi,

you can only have one ScriptManager control. My suggestion is to put it in your page (or in the master page). If you need to add scripts or services references in user controls, you can use the ScriptManagerProxy control.

I think you're getting a sense for the awkwardness of the current implmentation.

If you'd like, you can help me recommend a more elegant solution by contributing here:

http://forums.asp.net/thread/1364014.aspx