resolve #8555 questionTitleWidth property - add 'px' to numeric values (

#8566)

Co-authored-by: OlgaLarina <[email protected]>

src/question.ts

@@ -686,7 +686,11 @@ export class Question extends SurveyElement<Question>
   }
   public get titleWidth(): string {
     if (this.getTitleLocation() === "left") {
-      if (!!this.parent) return this.parent.getQuestionTitleWidth();
+      if (!!this.parent) {
+        let width = this.parent.getQuestionTitleWidth() as any;
+        if (width && !isNaN(width)) width = width + "px";
+        return width;
+      }
     }
     return undefined;
   }

tests/surveytests.ts

@@ -6984,6 +6984,9 @@ QUnit.test("Define questionTitleWidth on Panel/Page level", function (assert) {
   panel2.questionTitleWidth = "200px";
   assert.equal(q.titleWidth, "200px", "get from panel2");
 
+  panel2.questionTitleWidth = "300";
+  assert.equal(q.titleWidth, "300px", "titleWidth with px");
+
   q.titleLocation = "top";
   assert.equal(q.titleWidth, undefined, "titleWidth available if titleLocation is left");
 });