PR: Slider Scale - Value labels modified from within a design surface do not persist in a slider configuration and do not appear in preview #7205

packages/survey-core/src/question_slider.ts

@@ -903,6 +903,24 @@ export class QuestionSliderModel extends Question implements ISliderLabelItemOwn
   private get isLabelsShowValueText(): boolean {
     return !!this.customLabels.find(l => l.showValue);
   }
+
+  public itemValuePropertyChanged(item: ItemValue, name: string, oldValue: any, newValue: any): void {
+    if (this.autoGenerate === true) {
+      const index = this.generatedLabels.indexOf(item);
+      this.autoGenerate = false;
+      this.setPropertyValue("customLabels", this.calcGeneratedLabels());
+      item = this.customLabels[index];
+    }
+    if (name === "text") {
+      if (Number.isFinite(+newValue)) {
+        item.value = +newValue;
+      } else {
+        item.text = newValue;
+      }
+    }
+    super.itemValuePropertyChanged(item, name, oldValue, newValue);
+
+  }
 }
 
 function getCorrectMinMax(min: any, max: any, isMax: boolean, step: number): any {

packages/survey-core/tests/question_slider_tests.ts

@@ -959,4 +959,22 @@ QUnit.test("Preview", (assert) => {
   const event: any = { target: { value: 50 } };
   slider.handleOnChange(event, 0);
   assert.deepEqual(slider.renderedValue, [0], "the value doesn't changed");
+});
+
+QUnit.test("itemValuePropertyChanged for labels inplace editing in Creator https://github.com/surveyjs/survey-creator/issues/7205", (assert) => {
+  let q1 = new QuestionSliderModel("q1");
+  q1.labelCount = 1;
+  const label1 = q1.generatedLabels[0];
+  label1.text = "min";
+  assert.equal(q1.autoGenerate, false);
+  assert.equal(q1.customLabels[0].text, "min");
+  assert.equal(q1.customLabels[0].value, 0);
+
+  let q2 = new QuestionSliderModel("q2");
+  q2.labelCount = 1;
+  const label2 = q2.generatedLabels[0];
+  label2.text = "5";
+  assert.equal(q2.autoGenerate, false);
+  assert.equal(q2.customLabels[0].text, "5");
+  assert.equal(q2.customLabels[0].value, 5);
 });