Bug/804 (#850)

* Fix 804 - Expand Nodes to selected node
* TreeView - don't add target node to expand array

Author: joelfmrodrigues

src/controls/treeView/TreeItem.tsx

@@ -211,7 +211,7 @@ export default class TreeItem extends React.Component<ITreeItemProps, ITreeItemS
   /**
    * Process the child nodes
    */
-  public createChildNodes = (list, paddingLeft) => {
+  public createChildNodes = (list: ITreeItem[], paddingLeft: number) => {
     if (list.length) {
       const {
         treeItem,

src/controls/treeView/TreeView.tsx

@@ -44,7 +44,7 @@ export class TreeView extends React.Component<ITreeViewProps, ITreeViewState> {
     if (array) {
       array.some(({ key, children = [] }) => {
         if (key === target) {
-          this.nodesToExpand.push(key);
+          // this.nodesToExpand.push(key);
           result = key;
           return true;
         }

src/webparts/controlsTest/components/ControlsTest.tsx

@@ -412,7 +412,7 @@ export default class ControlsTest extends React.Component<IControlsTestProps, IC
       canMoveNext: true,
       currentCarouselElement: this.carouselElements[0],
       comboBoxListItemPickerListId: '0ffa51d7-4ad1-4f04-8cfe-98209905d6da',
-      treeViewSelectedKeys: ['gc1', 'gc3'],
+      treeViewSelectedKeys: ['3', 'gc3'],
       showAnimatedDialog: false,
       showCustomisedAnimatedDialog: false,
       showSuccessDialog: false,
@@ -1579,8 +1579,8 @@ export default class ControlsTest extends React.Component<IControlsTestProps, IC
             defaultSelectedKeys={this.state.treeViewSelectedKeys}
             onExpandCollapse={this.onExpandCollapseTree}
             onSelect={this.onItemSelected}
-            defaultExpandedChildren={true}
-          //expandToSelected={true}
+            defaultExpandedChildren={false}
+            expandToSelected={true}
           // onRenderItem={this.renderCustomTreeItem}
           />
           <PrimaryButton onClick={() => { this.setState({ treeViewSelectedKeys: [] }); }}>Clear selection</PrimaryButton>