From 8e51c18cf0132cae2d23c4b1f266909846434464 Mon Sep 17 00:00:00 2001
From: berndlueneburg <77238268+berndlueneburg@users.noreply.github.com>
Date: Mon, 18 May 2026 06:37:10 +0200
Subject: [PATCH 1/2] Add Stack property to BarChartDataset

Added Stack property to BarChartDataset for dataset grouping.
---
 .../ChartDataset/BarChart/BarChartDataset.cs     | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/BlazorExpress.ChartJS/Models/ChartDataset/BarChart/BarChartDataset.cs b/BlazorExpress.ChartJS/Models/ChartDataset/BarChart/BarChartDataset.cs
index 15d5ab80..d36f4093 100644
--- a/BlazorExpress.ChartJS/Models/ChartDataset/BarChart/BarChartDataset.cs
+++ b/BlazorExpress.ChartJS/Models/ChartDataset/BarChart/BarChartDataset.cs
@@ -275,8 +275,20 @@ public BarChartDataset()
     [Description("If <b>true</b>, null or undefined values will not be used for spacing calculations when determining bar size.")]
     public bool SkipNull { get; set; }
 
-    //Stack
-    //https://www.chartjs.org/docs/latest/charts/bar.html#general
+    /// <summary>
+    /// The ID of the group to which this dataset belongs. Datasets sharing the same
+    /// stack are stacked together; datasets with different stacks render side by side.
+    /// <para>
+    /// Default value is <see langword="null" />.
+    /// </para>
+    /// <see href="https://www.chartjs.org/docs/latest/charts/bar.html#general" />
+    /// </summary>
+    [AddedVersion("1.2.3")]
+    [DefaultValue(null)]
+    [Description("The ID of the group to which this dataset belongs. Datasets sharing the same stack are stacked together; datasets with different stacks render side by side.")]
+    [ParameterTypeName("string?")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Stack { get; set; }
 
     /// <summary>
     /// The ID of the x-axis to plot this dataset on.

From d53fa7c15d1e50ecbce37160b8c2fd5b856375d7 Mon Sep 17 00:00:00 2001
From: berndlueneburg <77238268+berndlueneburg@users.noreply.github.com>
Date: Mon, 18 May 2026 06:40:34 +0200
Subject: [PATCH 2/2] Add Stack property to LineChartDataset

Added Stack property to LineChartDataset for dataset grouping.
---
 .../ChartDataset/LineChart/LineChartDataset.cs  | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/BlazorExpress.ChartJS/Models/ChartDataset/LineChart/LineChartDataset.cs b/BlazorExpress.ChartJS/Models/ChartDataset/LineChart/LineChartDataset.cs
index 3959c700..d56aafe4 100644
--- a/BlazorExpress.ChartJS/Models/ChartDataset/LineChart/LineChartDataset.cs
+++ b/BlazorExpress.ChartJS/Models/ChartDataset/LineChart/LineChartDataset.cs
@@ -563,8 +563,21 @@ public LineChartDataset FillToValue(double value)
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     public bool? SpanGaps { get; set; }
 
-    //stack
-    //https://www.chartjs.org/docs/latest/charts/line.html#general
+    /// <summary>
+    /// The ID of the group to which this dataset belongs. On a stacked scale,
+    /// datasets sharing the same stack are stacked together; datasets with
+    /// different stacks are drawn independently.
+    /// <para>
+    /// Default value is <see langword="null" />.
+    /// </para>
+    /// <see href="https://www.chartjs.org/docs/latest/charts/line.html#general" />
+    /// </summary>
+    [AddedVersion("1.2.3")]
+    [DefaultValue(null)]
+    [Description("The ID of the group to which this dataset belongs. Datasets sharing the same stack are stacked together; datasets with different stacks are drawn independently.")]
+    [ParameterTypeName("string?")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Stack { get; set; }
 
     /// <summary>
     /// If the stepped value is set to anything other than <see langword="false"/>, tension will be ignored.