added wxGridUpdateLocker helper class wrapping Begin/EndBatch() calls in a more convenient and safe way

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44833 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/grid.tex

@@ -253,6 +253,10 @@ the grid is suppressed. Each call to BeginBatch must be matched by a later call
 modification can be enclosed between BeginBatch and EndBatch calls to avoid
 screen flicker. The final EndBatch will cause the grid to be repainted.
 
+\wxheading{See also}
+
+\helpref{wxGridUpdateLocker}{wxgridupdatelocker}
+
 
 
 \membersection{wxGrid::BlockToDeviceRect}\label{wxgridblocktodevicerect}
@@ -514,6 +518,10 @@ EndBatch. Code that does a lot of grid modification can be enclosed between
 BeginBatch and EndBatch calls to avoid screen flicker. The final EndBatch will
 cause the grid to be repainted.
 
+\wxheading{See also}
+
+\helpref{wxGridUpdateLocker}{wxgridupdatelocker}
+
 
 
 \membersection{wxGrid::Fit}\label{wxgridfit}