Added check for the last null row (#8764)

src/sql/workbench/contrib/editData/browser/gridParentComponent.ts

@@ -391,7 +391,7 @@ export abstract class GridParentComponent {
 		}
 
 		let rowIndex = grid.getCellFromEvent(event).row;
-
+		if (rowIndex !== grid.getDataLength() - 1) {
 			let actionContext: IGridInfo = {
 				batchIndex: batchId,
 				resultSetNumber: resultId,
@@ -401,6 +401,7 @@ export abstract class GridParentComponent {
 			};
 
 			let anchor = { x: event.pageX + 1, y: event.pageY };
+
 			this.contextMenuService.showContextMenu({
 				getAnchor: () => anchor,
 				getActions: () => this.actionProvider.getGridActions(),
@@ -408,6 +409,7 @@ export abstract class GridParentComponent {
 				getActionsContext: () => (actionContext)
 			});
 		}
+	}
 
 	/**
 	 * Returns a function that selects all elements of a grid. This needs to