//in masterpage.aspx.cs
public partial class MasterPage : System.Web.UI.MasterPage
{
public bool ExternderVisible
{
get{return UpdatePanel_UpdatePanelAnimationExtender.Enabled;}
set{UpdatePanel_UpdatePanelAnimationExtender.Enabled = value;}
}
protected void Page_Load(object sender, EventArgs e)
{
…
}
}
//in childpage.aspx
<%@ MasterType VirtualPath=”~/Master.master” %>
//in child.aspx.cs
public void ButtonHideLoader(sender s, evntargs args)
{
this.Master.ExternderVisible = false;
}
Happy Coding 🙂