diff --git a/src/app/main/main-center/main-center.component.html b/src/app/main/main-center/main-center.component.html
index 3d7c2a9..e012abe 100644
--- a/src/app/main/main-center/main-center.component.html
+++ b/src/app/main/main-center/main-center.component.html
@@ -13,4 +13,4 @@
PDF not found
-
+
\ No newline at end of file
diff --git a/src/app/main/tree/tree.component.html b/src/app/main/tree/tree.component.html
index 1246370..367c3f6 100644
--- a/src/app/main/tree/tree.component.html
+++ b/src/app/main/tree/tree.component.html
@@ -1,7 +1,25 @@
-
-
-
-
-
\ No newline at end of file
+
Select XA:
+
+
+ Please select a model
+
+
+
+
+
+ No information is available for selected model
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/app/main/tree/tree.component.ts b/src/app/main/tree/tree.component.ts
index aaf8bf6..90d4b97 100644
--- a/src/app/main/tree/tree.component.ts
+++ b/src/app/main/tree/tree.component.ts
@@ -12,6 +12,12 @@ export class TreeComponent implements OnInit {
filesTree: TreeNode[];
+ selectedXA = '';
+
+ selectOptionHandler(event: any) {
+ this.selectedXA = event.target.value;
+ }
+
constructor(
private treeService: TreeService,
private nodeService: NodeService