From a07fd4296b8b344d04693a905f98b274f445a4b4 Mon Sep 17 00:00:00 2001
From: Vladyslav_Prykhodko <vprykhodko@thingsboard.io>
Date: Mon, 17 Nov 2025 18:41:12 +0200
Subject: [PATCH] Always show point symbol for single-point line charts

---
 .../widget/lib/chart/time-series-chart.models.ts           | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/chart/time-series-chart.models.ts b/ui-ngx/src/app/modules/home/components/widget/lib/chart/time-series-chart.models.ts
index 089c655224..301698cd21 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/chart/time-series-chart.models.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/chart/time-series-chart.models.ts
@@ -1411,6 +1411,13 @@ const createTimeSeriesChartSeries = (item: TimeSeriesChartDataItem,
     }
   }
   seriesOption.data = item.data;
+  if (seriesOption.type === 'line') {
+    const settings: TimeSeriesChartKeySettings = item.dataKey.settings;
+    const lineSettings = settings.lineSettings;
+    if (!lineSettings.showPoints) {
+      seriesOption.showSymbol = item.data.length === 1;
+    }
+  }
   return seriesOption;
 };