Formattable UI labels

Source/LibationWinForms/FormattableLabel.cs

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+using System;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace LibationWinForms
+{
+    public class FormattableLabel : Label
+    {
+        public string FormatText { get; set; }
+
+        /// <summary>Text set: first non-null, non-whitespace <see cref="Text"/> set is also saved as <see cref="FormatText"/></summary>
+        public override string Text
+        {
+            get => base.Text;
+            set
+            {
+                if (string.IsNullOrWhiteSpace(FormatText))
+                    FormatText = value;
+
+                base.Text = value;
+            }
+        }
+
+        #region ctor.s
+        public FormattableLabel() : base() { }
+        #endregion
+
+        /// <summary>Replaces the format item in a specified string with the string representation of a corresponding object in a specified array. Returns <see cref="Text"/> for convenience.</summary>
+        /// <param name="args">An object array that contains zero or more objects to format.</param>
+        public string Format(params object[] args) => Text = string.Format(FormatText, args);
+    }
+}