! Code refactoring

wmjordan · wmjordan · commit 50af9455c21a · 2022-09-17T10:32:50.000+08:00
diff --git a/Codist/Helpers/WpfHelper.cs b/Codist/Helpers/WpfHelper.cs
@@ -332,10 +332,8 @@ public static TParent GetParent<TParent>(this DependencyObject obj, Predicate<TP
 				return null;
 			}
 			var p = obj;
-			TParent r;
 			while ((p = p.GetParent()) != null) {
-				r = p as TParent;
-				if (r != null && (predicate == null || predicate(r))) {
+				if (p is TParent r && (predicate == null || predicate(r))) {
 					return r;
 				}
 			}

Original file line number	Diff line number	Diff line change
`@@ -332,10 +332,8 @@ public static TParent GetParent<TParent>(this DependencyObject obj, Predicate<TP`
`332`	`332`	`return null;`
`333`	`333`	`}`
`334`	`334`	`var p = obj;`
`335`		`- TParent r;`
`336`	`335`	`while ((p = p.GetParent()) != null) {`
`337`		`- r = p as TParent;`
`338`		`- if (r != null && (predicate == null \|\| predicate(r))) {`
	`336`	`+ if (p is TParent r && (predicate == null \|\| predicate(r))) {`
`339`	`337`	`return r;`
`340`	`338`	`}`
`341`	`339`	`}`