diff --git a/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.cs b/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.cs
index 2ffc406..8e3ad28 100644
--- a/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.cs
@@ -38,6 +38,7 @@ namespace NKC_WF.WebUserControls
                 {
                     hfSheetId.Value = value.ToString();
                 }
+                doUpdate();
             }
             get
             {