How to have a javascript callback executed after an update panel postback?

Question

I\'m using a jQuery tip plugin to show help tips when the user hovers certain elements of the page.

I need to register the plugin events after the page is loaded usi

Answer 1

This is probably far from the most elegant solution, but its a solution nonetheless:

public class UpdatePanel : System.Web.UI.UpdatePanel
{
    /// 

    /// Javascript to be run when the updatepanel has completed updating
    /// 
    [Description("Javascript to be run when the updatepanel has completed updating"),
        Category("Values"),
        DefaultValue(null),
        Browsable(true)]
    public string OnUpdateCompleteClientScript
    {
        get
        {
            return (string)ViewState["OnUpdateCompleteClientScript"];
        }
        set
        {
            ViewState["OnUpdateCompleteClientScript"] = value;
        }
    }

    protected override void OnPreRender(System.EventArgs e)
    {
        base.OnPreRender(e);
        if(!string.IsNullOrEmpty(this.OnUpdateCompleteClientScript))
            Page.ClientScript.RegisterStartupScript(this.GetType(), this.ClientID, string.Concat("Sys.WebForms.PageRequestManager.getInstance().add_endRequest(function(sender, args){for(var panelId in sender._updatePanelClientIDs){if(sender._updatePanelClientIDs[panelId] == '", this.ClientID, "'){", this.OnUpdateCompleteClientScript, "}}});"), true);
    }
}

Use it like this:

Of course you'll need to register the custom control in youre webconfig or page to use it like this.

Edit: also, have you looked at jquery.live?