Accessing Master Page controls

[Munnazz]

Hi,
I was in a urgency of some requirement that was given to me.. I want to access my mater page control in my child page can any one give some assistance regarding this..

[ddanbe]

Use the Parent control property: http://msdn.microsoft.com/en-us/library/system.windows.forms.control.parent(VS.80).aspx

[pritesh2010]

even you can do this by Gettype
Using the Form PrentForm propertie,Controls we csan find for E.g.

if (this.ParentForm.GetType() == typeof(ParentFormName))   ///Where In typeof() containss our parent form Name
            {
                ((ParentFormName)this.ParentForm).Label1.Text= "HI";  // where ResultId is my Parent form propertie.

            }

[Munnazz]

Thanks for ur response.. But i was unable to get the form name of the master page.
Actually my requirement is
I had a iframe pop-up in my master page that was hidden by default but when there is a requirement it was made unhidden. So the page which we want to show in that iframe is appended to it my giving iframe src as the page name. Here i had a close button in my iframe(master page) anf want to access that in my child page(iframe). when using Master.FindControl property it was showing as null and when i add masterfilename property in register tag of aspx page it is showing the whole master page in the iframe pop-up.
Can anyone please send how can i access my parent control by adding masterfilename but not to show the whole page in the iframe pop-up.

Thanks In advance