diff --git a/api-reference/10 UI Components/dxContextMenu/4 Events/selectionChanging.md b/api-reference/10 UI Components/dxContextMenu/4 Events/selectionChanging.md
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+++ b/api-reference/10 UI Components/dxContextMenu/4 Events/selectionChanging.md	
@@ -0,0 +1,11 @@
+---
+id: dxContextMenu.selectionChanging
+hidden: 
+type: eventType
+---
+---
+##### shortDescription
+<!-- Description goes here -->
+
+---
+<!-- Description goes here -->
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diff --git a/api-reference/10 UI Components/dxTabPanel/4 Events/selectionChanging.md b/api-reference/10 UI Components/dxTabPanel/4 Events/selectionChanging.md
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+++ b/api-reference/10 UI Components/dxTabPanel/4 Events/selectionChanging.md	
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+---
+id: dxTabPanel.selectionChanging
+type: eventType
+---
+---
+##### shortDescription
+Raised before selection changes.
+
+---
+Main article: [onSelectionChanging]({basewidgetpath}/Configuration/#onSelectionChanged)
+
+#####See Also#####
+#include common-link-handleevents
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