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verbose null checking to debug #1578

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Robert
2026-01-31 12:36:29 -05:00
parent 946d4779a9
commit c43e88d269
1 changed files with 17 additions and 1 deletions
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18
Source/LibationWinForms/Form1.QuickFilters.cs
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@@ -57,7 +57,23 @@ namespace LibationWinForms
private void productsDisplay_InitialLoaded(object sender, EventArgs e)
{
if (QuickFilters.UseDefault)
performFilter(QuickFilters.Filters.FirstOrDefault()?.Filter);
{
// begin verbose null checking. shouldn't be possible, yet NRE in #1578
var f = QuickFilters.Filters;
if (f is null)
Serilog.Log.Logger.Error("Unexpected exception. QuickFilters.Filters is null");
var first = f.FirstOrDefault();
if (first is null)
Serilog.Log.Logger.Information("QuickFilters.Filters.FirstOrDefault() is null");
var filter = first?.Filter;
if (filter is null)
Serilog.Log.Logger.Information("QuickFilters.Filters.FirstOrDefault()?.Filter is null");
// end verbose null checking
performFilter(filter);
}
}
}
}