Add project

Common/Pagination/PaginationExtensions.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Common.Pagination;
+
+public static class PaginationExtensions
+{
+    public static string ToPaginationSummary(this PaginationProperties props)
+    {
+        var before = (props.PageSize * (props.PageNumber - 1)) + 1;
+        var after = Math.Min((props.PageSize * props.PageNumber), props.TotalItems);
+        return props.TotalItems == 0 ? $"{props.Text}: brak" : $"{props.Text}: {before}-{after} z {props.TotalItems}";
+    }
+}