GridView Style Change Exception ?

[Ravi]

Hi

In my project  have three different style files in each style file i have defined RadGridView Style which is been applied to scrollviewer.
i have used the same styles in other pages which is working fine but this page is having RadGridView  
with child rows in some rows like depending upon the criteria, and when any theme is been applied  it shows blank page. as it is throwing an exception 


at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
   at MS.Internal.XcpImports.SetValue(IManagedPeerBase obj, DependencyProperty property, DependencyObject doh)
   at MS.Internal.XcpImports.SetValue(IManagedPeerBase doh, DependencyProperty property, Object obj)
   at System.Windows.DependencyObject.SetObjectValueToCore(DependencyProperty dp, Object value)
   at System.Windows.DependencyObject.SetEffectiveValue(DependencyProperty property, EffectiveValueEntry& newEntry, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.Controls.ContentControl.set_Content(Object value)
   at Telerik.Windows.Controls.GridView.GridViewHeaderCell.PrepareHeaderContent()
   at Telerik.Windows.Controls.GridView.GridViewHeaderCell.Prepare()
   at Telerik.Windows.Controls.GridView.GridViewHeaderRow.PrepareCell(GridViewCellBase cellBase, GridViewColumn column)
   at Telerik.Windows.Controls.GridView.GridViewCellsPanel.PrepareCell(GridViewCellBase cell, GridViewColumn column)
   at Telerik.Windows.Controls.GridView.GridViewCellsPanel.GetVirtualizedCell(GridViewColumn column, Boolean createIfNull)
   at Telerik.Windows.Controls.GridView.GridViewCellsPanel.RealizeAndMeasureCells(Int32 startIndex, Int32 predictedLastIndex, Func`2 calculateNextIndex)
   at Telerik.Windows.Controls.GridView.GridViewCellsPanel.UpdateLeftFrozenCells(Int32 currentFrozenColumnLastIndex, Boolean forceRefresh)
   at Telerik.Windows.Controls.GridView.GridViewCellsPanel.UpdateVirtualizedCells()
   at Telerik.Windows.Controls.GridView.GridViewCellsPanel.MeasureOverride(Size availableSize)
   at System.Windows.FrameworkElement.MeasureOverride(IntPtr nativeTarget, Single inWidth, Single inHeight, Single& outWidth, Single& outHeight)


here i m attaching the snapshots of the screens.