Fix: Notify framework when count changes to update getTotalSize()

shunn2 · shunn2 · commit 73f744bcd386 · 2025-12-04T00:01:43.000+09:00
diff --git a/packages/virtual-core/src/index.ts b/packages/virtual-core/src/index.ts
@@ -646,6 +646,10 @@ export class Virtualizer<
     },
     {
       key: false,
+      onChange: () => {
+        // Notify when measurement options change as they affect total size
+        this.notify(false)
+      },
     },
   )
 

Original file line number	Diff line number	Diff line change
`@@ -646,6 +646,10 @@ export class Virtualizer<`
`646`	`646`	`},`
`647`	`647`	`{`
`648`	`648`	`key: false,`
	`649`	`+ onChange: () => {`
	`650`	`+ // Notify when measurement options change as they affect total size`
	`651`	`+ this.notify(false)`
	`652`	`+ },`
`649`	`653`	`},`
`650`	`654`	`)`
`651`	`655`