string.Format converted to interpolated string

src/Avalonia.Controls/NumericUpDown/NumericUpDown.cs

@@ -1113,11 +1113,11 @@ namespace Avalonia.Controls
             }
             if (value < Minimum)
             {
-                throw new ArgumentOutOfRangeException(nameof(value), string.Format("Value must be greater than Minimum value of {0}", Minimum));
+                throw new ArgumentOutOfRangeException(nameof(value), $"Value must be greater than Minimum value of {Minimum}");
             }
             else if (value > Maximum)
             {
-                throw new ArgumentOutOfRangeException(nameof(value), string.Format("Value must be less than Maximum value of {0}", Maximum));
+                throw new ArgumentOutOfRangeException(nameof(value), $"Value must be less than Maximum value of {Maximum}");
             }
         }
 

src/Avalonia.Remote.Protocol/MetsysBson.cs

@@ -752,7 +752,7 @@ namespace Metsys.Bson
 
                         if (memberExpression.Expression.NodeType != ExpressionType.Parameter && memberExpression.Expression.NodeType != ExpressionType.Convert)
                         {
-                            throw new ArgumentException(string.Format("Expression '{0}' must resolve to top-level member.", lambdaExpression), nameof(lambdaExpression));
+                            throw new ArgumentException($"Expression '{lambdaExpression}' must resolve to top-level member.", nameof(lambdaExpression));
                         }
                         return memberExpression.Member.Name;
                     default:
@@ -942,7 +942,7 @@ namespace Metsys.Bson
                     return new ListWrapper();
                 }
             }
-            throw new BsonException(string.Format("Collection of type {0} cannot be deserialized", type.FullName));
+            throw new BsonException($"Collection of type {type.FullName} cannot be deserialized");
         }
 
         public abstract void Add(object value);
@@ -1514,7 +1514,7 @@ namespace Metsys.Bson.Configuration
                     result = Visit((MemberExpression)expression.Left);
                 }
                 var index = Expression.Lambda(expression.Right).Compile().DynamicInvoke();
-                return result + string.Format("[{0}]", index);
+                return result + $"[{index}]";
             }
 
             private string Visit(MemberExpression expression)
@@ -1540,7 +1540,7 @@ namespace Metsys.Bson.Configuration
                 if (expression.Method.Name == "get_Item" && expression.Arguments.Count == 1)
                 {
                     var index = Expression.Lambda(expression.Arguments[0]).Compile().DynamicInvoke();
-                    name += string.Format("[{0}]", index);
+                    name += $"[{index}]";
                 }
                 return name;
             }

src/Avalonia.X11/X11Structs.cs

@@ -1109,7 +1109,7 @@ namespace Avalonia.X11 {
 
 		public override string ToString ()
 		{
-			return string.Format("MotifWmHints <flags={0}, functions={1}, decorations={2}, input_mode={3}, status={4}", (MotifFlags) flags.ToInt32 (), (MotifFunctions) functions.ToInt32 (), (MotifDecorations) decorations.ToInt32 (), (MotifInputMode) input_mode.ToInt32 (), status.ToInt32 ());
+			return $"MotifWmHints <flags={(MotifFlags)flags.ToInt32()}, functions={(MotifFunctions)functions.ToInt32()}, decorations={(MotifDecorations)decorations.ToInt32()}, input_mode={(MotifInputMode)input_mode.ToInt32()}, status={status.ToInt32()}";
 		}
 	}
 
@@ -1707,8 +1707,7 @@ namespace Avalonia.X11 {
 
 		public override string ToString ()
 		{
-			return string.Format ("XCursorImage (version: {0}, size: {1}, width: {2}, height: {3}, xhot: {4}, yhot: {5}, delay: {6}, pixels: {7}", 
-				version, size, width, height, xhot, yhot, delay, pixels);
+			return $"XCursorImage (version: {version}, size: {size}, width: {width}, height: {height}, xhot: {xhot}, yhot: {yhot}, delay: {delay}, pixels: {pixels}";
 		}
 	} ;