Dynamically binding columns in Gridview not reflecting with other regions

[Arti]

Creating dynamic column binding of GridView Columns with following,

public GridViewDataColumn AddCellTemplate(string header, string bindproperty, string namespacevalue, string control, bool isReadonly, bool isResizable, double columnWidthPercentage)
        {
            GridViewDataColumn dgtc = new GridViewDataColumn();
            dgtc.Header = header;
            dgtc.IsReadOnly = isReadonly;
            dgtc.IsResizable = isResizable;
            if (columnWidthPercentage > 0)
            {
                dgtc.Width = columnWidthPercentage * GridViewActualWidth / 100;
            }
                             
            Binding objbind = new Binding(bindproperty);
            objbind.Mode = BindingMode.TwoWay;
            dgtc.DataMemberBinding = objbind;
            if (!string.IsNullOrEmpty(control))
            {
                StringBuilder CellTemp = new StringBuilder();
                CellTemp.Append("<DataTemplate ");
                CellTemp.Append("xmlns='http://schemas.microsoft.com/winfx/");
                CellTemp.Append("2006/xaml/presentation' ");
                CellTemp.Append("xmlns:syncControls='clr-namespace:Syncoms.BOSuiteSL.Common.Controls;assembly=Syncoms.BOSuiteSL.Common' ");
                CellTemp.Append("xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' >");
                CellTemp.Append("<Grid>");
                CellTemp.Append(control);
                CellTemp.Append(" Margin='4'/>");
                CellTemp.Append("</Grid>");
                CellTemp.Append("</DataTemplate>");
                DataTemplate dt = XamlReader.Load(CellTemp.ToString()) as DataTemplate;
                dgtc.CellTemplate = dt;
            }
            return dgtc;      
        }

If i m changing property then with in region its working fine . But whenver i m clicking on Toolbar' button which is within different region, than its not binding with its property.