diff --git a/src/question_matrixdropdownbase.ts b/src/question_matrixdropdownbase.ts
index 5352fe8b93..9ecc7b1c6c 100644
--- a/src/question_matrixdropdownbase.ts
+++ b/src/question_matrixdropdownbase.ts
@@ -1392,29 +1392,34 @@ export class QuestionMatrixDropdownModelBase extends QuestionMatrixBaseModel<Mat
   }
   public getConditionJson(operator: string = null, path: string = null): any {
     if (!path) return super.getConditionJson(operator);
-    var columnName = "";
-    for (var i = path.length - 1; i >= 0; i--) {
+    let columnName = "";
+    for (let i = path.length - 1; i >= 0; i--) {
       if (path[i] == ".") break;
       columnName = path[i] + columnName;
     }
-    var column = this.getColumnByName(columnName);
-    if (!column) return null;
-    var question = column.createCellQuestion(null);
-    if (!question) return null;
-    return question.getConditionJson(operator);
+    let question = undefined;
+    let column = this.getColumnByName(columnName);
+    if (!!column) {
+      question = column.createCellQuestion(null);
+    } else {
+      if(this.detailPanelMode !== "none") {
+        question = this.detailPanel.getQuestionByName(columnName);
+      }
+    }
+    return !!question ? question.getConditionJson(operator) : null;
   }
-  public clearIncorrectValues() {
+  public clearIncorrectValues(): void {
     var rows = this.visibleRows;
     if (!rows) return;
     for (var i = 0; i < rows.length; i++) {
       rows[i].clearIncorrectValues(this.getRowValue(i));
     }
   }
-  public clearErrors() {
+  public clearErrors(): void {
     super.clearErrors();
     this.runFuncForCellQuestions((q: Question) => { q.clearErrors(); });
   }
-  public localeChanged() {
+  public localeChanged(): void {
     super.localeChanged();
     this.runFuncForCellQuestions((q: Question) => { q.localeChanged(); });
   }
@@ -1838,7 +1843,11 @@ export class QuestionMatrixDropdownModelBase extends QuestionMatrixBaseModel<Mat
     return questionPlainData;
   }
   public addConditionObjectsByContext(objects: Array<IConditionObject>, context: any): void {
-    const hasColumnContext = !!context && this.columns.indexOf(context) > -1;
+    let rowElements: Array<any> = [].concat(this.columns);
+    if(this.detailPanelMode !== "none") {
+      rowElements = rowElements.concat(this.detailPanel.questions);
+    }
+    const hasColumnContext = !!context && rowElements.indexOf(context) > -1;
     const hasContext = context === true || hasColumnContext;
     const rowsIndeces = this.getConditionObjectsRowIndeces();
     if (hasContext) {
@@ -1853,12 +1862,12 @@ export class QuestionMatrixDropdownModelBase extends QuestionMatrixBaseModel<Mat
       const dot = hasQuestionPrefix && index === -1 ? "." : "";
       const prefixName = (hasQuestionPrefix ? this.getValueName() : "") + dot + rowName + ".";
       const prefixTitle = (hasQuestionPrefix ? this.processedTitle : "") + dot + rowText + ".";
-      for (var j = 0; j < this.columns.length; j++) {
-        const column = this.columns[j];
-        if (index === -1 && context === column) continue;
+      for (var j = 0; j < rowElements.length; j++) {
+        const rowElement = rowElements[j];
+        if (index === -1 && context === rowElement) continue;
         const obj: IConditionObject = {
-          name: prefixName + column.name,
-          text: prefixTitle + column.fullTitle,
+          name: prefixName + rowElement.name,
+          text: prefixTitle + rowElement.fullTitle,
           question: this
         };
 
diff --git a/tests/question_matrixdynamictests.ts b/tests/question_matrixdynamictests.ts
index ee97c28bf9..7eab6638a8 100644
--- a/tests/question_matrixdynamictests.ts
+++ b/tests/question_matrixdynamictests.ts
@@ -1616,9 +1616,13 @@ QUnit.test(
   }
 );
 
-function updateObjsQuestions(objs: Array<any>): void {
+function updateObjsQuestions(objs: Array<any>, removeQuestion: boolean = false): void {
   for (var i = 0; i < objs.length; i++) {
-    objs[i].question = objs[i].question.name;
+    if(removeQuestion) {
+      delete objs[i].question;
+    } else {
+      objs[i].question = objs[i].question.name;
+    }
     if (!!objs[i].context) {
       objs[i].context = objs[i].context.name;
     }
@@ -1750,7 +1754,7 @@ QUnit.test(
     question.title = "Matrix";
     question.addColumn("col1", "Column 1");
     question.addConditionObjectsByContext(objs, null);
-    for (var i = 0; i < objs.length; i++) delete objs[i].question;
+    updateObjsQuestions(objs, true);
     assert.deepEqual(
       objs,
       [
@@ -1766,7 +1770,7 @@ QUnit.test(
 
     objs = [];
     question.addConditionObjectsByContext(objs, null);
-    for (var i = 0; i < objs.length; i++) delete objs[i].question;
+    updateObjsQuestions(objs, true);
     assert.deepEqual(
       objs,
       [
@@ -1780,7 +1784,7 @@ QUnit.test(
     question.rowCount = 4;
     objs = [];
     question.addConditionObjectsByContext(objs, null);
-    for (var i = 0; i < objs.length; i++) delete objs[i].question;
+    updateObjsQuestions(objs, true);
     assert.deepEqual(
       objs,
       [
@@ -1919,6 +1923,65 @@ QUnit.test("matrixDynamic.getConditionJson", function (assert) {
   json = question.getConditionJson("contains", "[0].col2");
   assert.equal(json.type, "radiogroup", "column 2 get type for contains");
 });
+QUnit.test("matrixDropdown.addConditionObjectsByContext, detail panel", function (assert) {
+  var objs = [];
+  var question = new QuestionMatrixDynamicModel("matrix");
+  question.title = "Matrix";
+  question.addColumn("col1", "Column 1");
+  question.detailPanel.addNewQuestion("text", "q1").title = "Question 1";
+  question.detailPanelMode = "underRow";
+  question.addConditionObjectsByContext(objs, null);
+  updateObjsQuestions(objs, true);
+  assert.deepEqual(
+    objs,
+    [
+      {
+        name: "matrix[0].col1",
+        text: "Matrix[0].Column 1",
+      },
+      {
+        name: "matrix[0].q1",
+        text: "Matrix[0].Question 1",
+      },
+    ],
+    "addConditionObjectsByContext work correctly for matrix dynamic, #1"
+  );
+  objs = [];
+  question.addConditionObjectsByContext(objs, question.columns[0]);
+  updateObjsQuestions(objs, true);
+  assert.deepEqual(
+    objs,
+    [
+      {
+        name: "matrix[0].col1",
+        text: "Matrix[0].Column 1",
+      },
+      {
+        name: "matrix[0].q1",
+        text: "Matrix[0].Question 1",
+      },
+      {
+        context: "col1",
+        name: "row.q1",
+        text: "row.Question 1",
+      },
+    ],
+    "addConditionObjectsByContext work correctly for matrix dynamic, #2"
+  );
+});
+
+QUnit.test("matrixDynamic.getConditionJson, detail panel", function (assert) {
+  var names = [];
+  var question = new QuestionMatrixDynamicModel("matrix");
+  question.addColumn("col1").cellType = "dropdown";
+  question.addColumn("col2").cellType = "dropdown";
+  question.detailPanel.addNewQuestion("dropdown", "q1").choices = [1, 2];
+  question.detailPanelMode = "underRow";
+  question.rowCount = 2;
+  var json = question.getConditionJson("equals", "[0].q1");
+  assert.deepEqual(json.choices, [1, 2], "column 1 get choices");
+  assert.equal(json.type, "dropdown", "column 1 get type");
+});
 
 QUnit.test("matrixDynamic.clearInvisibleValues", function (assert) {
   var names = [];