Add UpdateValueAsync to ApexGauge

src/Blazor-ApexCharts/ApexGauge.razor

@@ -1,6 +1,6 @@
 @namespace ApexCharts
 
-<ApexChart TItem="GaugeValue" Title="@Title" Options="options">
+<ApexChart TItem="GaugeValue" Title="@Title" Options="options" @ref=GaugeReference>
 
     <ApexPointSeries TItem="GaugeValue"
         SeriesType=SeriesType.RadialBar

src/Blazor-ApexCharts/ApexGauge.razor.cs

@@ -1,45 +1,62 @@
-using Microsoft.AspNetCore.Components;
-using System;
-using System.Collections.Generic;
-
-namespace ApexCharts
-{
+using Microsoft.AspNetCore.Components;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace ApexCharts
+{
     /// <summary>
     /// Component to create a single-value <see cref="SeriesType.RadialBar"/> chart in Blazor
-    /// </summary>
-    public partial class ApexGauge : IDisposable
-    {
-        /// <inheritdoc cref="Title.Text"/>
-        [Parameter] public string Title { get; set; }
-
-        /// <inheritdoc cref="GaugeValue.Percentage"/>
-        [Parameter] public decimal Percentage { get; set; }
-
-        /// <inheritdoc cref="GaugeValue.Label"/>
-        [Parameter] public string Label { get; set; }
-
+    /// </summary>
+    public partial class ApexGauge : IDisposable
+    {
+        /// <inheritdoc cref="Title.Text"/>
+        [Parameter] public string Title { get; set; }
+
+        /// <inheritdoc cref="GaugeValue.Percentage"/>
+        [Parameter] public decimal Percentage { get; set; }
+
+        /// <inheritdoc cref="GaugeValue.Label"/>
+        [Parameter] public string Label { get; set; }
+
         /// <summary>
         /// The options to customize the radial bar chart with
-        /// </summary>
-        [Parameter] public ApexChartOptions<GaugeValue> Options { get; set; } = new ApexChartOptions<GaugeValue>();
-
+        /// </summary>
+        [Parameter] public ApexChartOptions<GaugeValue> Options { get; set; } = new ApexChartOptions<GaugeValue>();
+
         private ApexChartOptions<GaugeValue> options;
 
-        /// <inheritdoc/>
-        protected override void OnInitialized()
-        {
-            options = Options;
-        }
-
-        private List<GaugeValue> GetItems()
-        {
-            return new List<GaugeValue> { new GaugeValue { Label = Label, Percentage = Percentage } };
-        }
-
-        /// <inheritdoc/>
-        public void Dispose()
-        {
-            GC.SuppressFinalize(this);
-        }
-    }
-}
+        ApexChart<GaugeValue> GaugeReference;
+
+        /// <inheritdoc/>
+        protected override void OnInitialized()
+        {
+            options = Options;
+        }
+
+
+        /// <summary>
+        /// Allows you to update the series array overriding the existing one. If you want to append series to existing series, use the appendSeries() method
+        /// </summary>
+        /// <param name="animate">Should the chart animate on re-rendering</param>
+        /// <remarks>
+        /// Links:
+        /// 
+        /// <see href="https://apexcharts.github.io/Blazor-ApexCharts/methods/update-series">Blazor Example</see>,
+        /// <see href="https://apexcharts.com/docs/methods/#updateSeries">JavaScript Documentation</see>
+        /// </remarks>
+        public Task UpdateValueAsync(bool animate = true) =>
+               GaugeReference?.UpdateSeriesAsync(animate);
+
+        private List<GaugeValue> GetItems()
+        {
+            return new List<GaugeValue> { new GaugeValue { Label = Label, Percentage = Percentage } };
+        }
+
+        /// <inheritdoc/>
+        public void Dispose()
+        {
+            GC.SuppressFinalize(this);
+        }
+    }
+}