Pass Data from User Control To Windows Form

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C#

Windows

application

Hai Sir,

I am trying to pass data from user control to parent Form in windows application...passing data from windows form to user control is working fine...but user control to form is not working
here am providing some code related my task :

form to user control :
i created property in user control like

Private ChkSign As Boolean = False
Public Property CheckPhoto() As Boolean
       Get
           Return ChkPhoto
       End Get
       Set(ByVal value As Boolean)
           ChkPhoto = value
       End Set
   End Property

I am passing boolean value from windows form...if value is true am processing code functionality
on windows form its fine for me..but ofter click on button am passing value of user control text box text value to main form..it is working when i set this form is a start up page..but
it is not working when i come to this form from another form ...please give some solution for this..