Parent Page Refresh After Model Page Close

 1. First we need to create Dynamic Action In Parent Page.

            Event : Dialog Close
            Selection Type : Region
            Region : Select Specific Region

Create True Action :
        Action : Close Dialog

Create another True Action :
       Action : Refresh
      Selection Type : Region
     Region : Select Specific Region

2. After That we need to create Process in Model Page .
        Name : PageClose(Give a meaningful Name )
        Type : Close Dialog
    Server Side Condition:
        Type : Request is contained in Value
        Value :Shift_Update(Update Button Name)