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Dashboard: always show legends on Performance Trends charts #15

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Merged
erikdarlingdata merged 1 commit into from
Feb 13, 2026
Merged

Dashboard: always show legends on Performance Trends charts #15

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42 changes: 19 additions & 23 deletions Dashboard/Controls/QueryPerformanceContent.xaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -915,18 +915,13 @@ private void LoadDurationChart(WpfPlot chart, IEnumerable<DurationTrendItem> tre
dataList.Select(d => d.CollectionTime),
dataList.Select(d => d.AvgDurationMs));

if (xs.Length > 0)
{
var scatter = chart.Plot.Add.Scatter(xs, ys);
scatter.LineWidth = 2;
scatter.MarkerSize = 5;
scatter.Color = color;
scatter.LegendText = legendText;

_legendPanels[chart] = chart.Plot.ShowLegend(ScottPlot.Edge.Bottom);
chart.Plot.Legend.FontSize = 12;
}
else
var scatter = chart.Plot.Add.Scatter(xs, ys);
scatter.LineWidth = 2;
scatter.MarkerSize = 5;
scatter.Color = color;
scatter.LegendText = legendText;

if (xs.Length == 0)
{
double xCenter = xMin + (xMax - xMin) / 2;
var noDataText = chart.Plot.Add.Text("No data for selected time range", xCenter, 0.5);
Expand All @@ -935,6 +930,9 @@ private void LoadDurationChart(WpfPlot chart, IEnumerable<DurationTrendItem> tre
noDataText.LabelAlignment = ScottPlot.Alignment.MiddleCenter;
}

_legendPanels[chart] = chart.Plot.ShowLegend(ScottPlot.Edge.Bottom);
chart.Plot.Legend.FontSize = 12;

chart.Plot.Axes.DateTimeTicksBottom();
chart.Plot.Axes.SetLimitsX(xMin, xMax);
chart.Plot.YLabel("Duration (ms/sec)");
Expand Down Expand Up @@ -971,18 +969,13 @@ private void LoadExecChart(IEnumerable<ExecutionTrendItem> execTrends, int hours
dataList.Select(d => d.CollectionTime),
dataList.Select(d => (double)d.ExecutionsPerSecond));

if (xs.Length > 0)
{
var scatter = QueryPerfTrendsExecChart.Plot.Add.Scatter(xs, ys);
scatter.LineWidth = 2;
scatter.MarkerSize = 5;
scatter.Color = ScottPlot.Colors.Blue;
scatter.LegendText = "Executions/sec";
var scatter = QueryPerfTrendsExecChart.Plot.Add.Scatter(xs, ys);
scatter.LineWidth = 2;
scatter.MarkerSize = 5;
scatter.Color = ScottPlot.Colors.Blue;
scatter.LegendText = "Executions/sec";

_legendPanels[QueryPerfTrendsExecChart] = QueryPerfTrendsExecChart.Plot.ShowLegend(ScottPlot.Edge.Bottom);
QueryPerfTrendsExecChart.Plot.Legend.FontSize = 12;
}
else
if (xs.Length == 0)
{
double xCenter = xMin + (xMax - xMin) / 2;
var noDataText = QueryPerfTrendsExecChart.Plot.Add.Text("No data for selected time range", xCenter, 0.5);
Expand All @@ -991,6 +984,9 @@ private void LoadExecChart(IEnumerable<ExecutionTrendItem> execTrends, int hours
noDataText.LabelAlignment = ScottPlot.Alignment.MiddleCenter;
}

_legendPanels[QueryPerfTrendsExecChart] = QueryPerfTrendsExecChart.Plot.ShowLegend(ScottPlot.Edge.Bottom);
QueryPerfTrendsExecChart.Plot.Legend.FontSize = 12;

QueryPerfTrendsExecChart.Plot.Axes.DateTimeTicksBottom();
QueryPerfTrendsExecChart.Plot.Axes.SetLimitsX(xMin, xMax);
QueryPerfTrendsExecChart.Plot.YLabel("Executions/sec");
Expand Down