map title to value for input (#6526)

Co-authored-by: RebeccaAnne <rebecch@microsoft.com>

Author: licanhua

source/nodejs/adaptivecards/src/card-elements.ts

@@ -3373,8 +3373,9 @@ export class ChoiceSetInput extends Input {
 
                 for (let choice of this.choices) {
                     let option = document.createElement("option");
-                    option.value = <string>choice.value;
-                    option.text = <string>choice.title;
+                    // To fix https://stackoverflow.com/questions/29882361/show-datalist-labels-but-submit-the-actual-value
+                    // value is mapped to choice.title other than choice.value
+                    option.value = <string>choice.title;
                     option.setAttribute("aria-label", <string>choice.title);
 
                     dataList.appendChild(option);
@@ -3491,6 +3492,13 @@ export class ChoiceSetInput extends Input {
                 return this._selectElement.selectedIndex > 0 ? this._selectElement.value : undefined;
             }
             else if (this._textInput) {
+                for (let choice of this.choices)
+                {
+                    if (choice.title && this._textInput.value === choice.title)
+                    {
+                        return choice.value;
+                    }
+                }
                 return this._textInput.value;
             }
             else if (this._toggleInputs && this._toggleInputs.length > 0) {