PR: Range Slider - Bind Sliders to Text Inputs - Text input fields and a slider scale become desynchronized (#10197)

* work for the #10188

* Fix the unit test

---------

Co-authored-by: Andrew Telnov <[email protected]>

Author: dmitry-kurmanov

packages/survey-core/src/question.ts

@@ -57,7 +57,7 @@ export class QuestionValueGetterContext implements IValueGetterContext {
   constructor (protected question: Question, protected isUnwrapped?: boolean) {}
   getValue(path: Array<IValueGetterItem>, isRoot: boolean, index: number, createObjects: boolean): IValueGetterInfo {
     const expVar = settings.expressionVariables;
-    if (path.length === 0 || (path.length === 1 && path[0].name === expVar.question)) return this.getQuestionValue();
+    if (path.length === 0 || (path.length === 1 && path[0].name === expVar.question)) return this.getQuestionValue(index);
     if (path.length > 1 && path[0].name === expVar.panel) {
       const panel: any = this.question.parent;
       if (panel && panel.isPanel) {
@@ -86,9 +86,13 @@ export class QuestionValueGetterContext implements IValueGetterContext {
     if (survey) return (<any>survey).getValueGetterContext().getValue(path, false, index, false);
     return undefined;
   }
-  private getQuestionValue(): IValueGetterInfo {
+  private getQuestionValue(index: number): IValueGetterInfo {
     const q = this.question;
-    return { isFound: true, context: this, value: q.getFilteredValue(this.isUnwrapped), requireStrictCompare: q.requireStrictCompare };
+    let val = q.getFilteredValue(this.isUnwrapped);
+    if (index > -1 && Array.isArray(val)) {
+      val = index < val.length ? val[index] : undefined;
+    }
+    return { isFound: true, context: this, value: val, requireStrictCompare: q.requireStrictCompare };
   }
 }
 export abstract class QuestionItemValueGetterContext extends ValueGetterContextCore {

packages/survey-core/tests/question_slider_tests.ts

@@ -932,4 +932,8 @@ QUnit.test("setValueExpression", (assert) => {
   qMax.value = 40;
   assert.deepEqual(slider.renderedValue, [20, 40], "set max renderedValue");
   assert.deepEqual(slider.value, [20, 40], "set max value");
+
+  slider.value = [10, 80];
+  assert.deepEqual(qMin.value, 10, "min value from slider");
+  assert.deepEqual(qMax.value, 80, "max value from slider");
 });