documentation(EJ2-000): source update from ej2-grid-docs

src/grid/grid/how-to/enable-editing-in-single-click.md

@@ -10,7 +10,7 @@ description: "Learn how to enable single click editing in the Essential JS 2 Dat
 
 You can make a row editable on a single click with `Normal` mode of editing in Grid, by using the [`startEdit`](../../api/grid/#startedit) and [`endEdit`](../../api/grid/#endedit) methods.
 
-Bind the **mousedown** event for Grid and in the event handler call the [`startEdit`](../../api/grid/#startedit) and [`endEdit`](../../api/grid/#endedit), based on the clicked target element.
+Bind the **mouseup** event for Grid and in the event handler call the [`startEdit`](../../api/grid/#startedit) and [`endEdit`](../../api/grid/#endedit), based on the clicked target element.
 
 {% tab template="grid/grid", es5Template="single-click-inline-edit" %}
 
@@ -33,7 +33,7 @@ let grid: Grid = new Grid({
     ],
     load: () => {
         let instance: IGrid = document.getElementById('Grid').ej2_instances[0];
-        instance.element.addEventListener('mousedown', (e: MouseEventArgs) => {
+        instance.element.addEventListener('mouseup', (e: MouseEventArgs) => {
             if (e.target.classList.contains("e-rowcell")) {
             if (instance.isEdit)
                 instance.endEdit();
@@ -47,6 +47,64 @@ let grid: Grid = new Grid({
 });
 grid.appendTo('#Grid');
 
+```
+
+{% endtab %}
+
+### Open dropdown edit popup on single click
+
+You can open the default dropdown edit popup with single click edit by focusing the dropdown element and calling the EJ2 dropdown list's showPopup(../../api/drop-down-list/#showpopup) method in the Grid's actionComplete(../../api/grid/#actioncomplete) event. In this demo we have used a global flag variable in the 'mouseup' event to ensure if the dropdown column is the clicked edit target.
+
+{% tab template="grid/grid", es5Template="open-dropdown-popup" %}
+
+```typescript
+import { Grid, Edit, IGrid, Toolbar } from '@syncfusion/ej2-grids';
+import { MouseEventArgs } from '@syncfusion/ej2-base';
+import { data } from './datasource.ts';
+
+Grid.Inject(Edit, Toolbar);
+
+let isDropdown = false;
+
+let grid: Grid = new Grid({
+    dataSource: data,
+    editSettings: { allowEditing: true, allowAdding: true, allowDeleting: true },
+    toolbar: ['Add', 'Edit', 'Delete', 'Update', 'Cancel'],
+    columns: [
+        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 100, isPrimaryKey: true },
+        { field: 'CustomerID', headerText: 'Customer ID', width: 120 },
+        { field: 'Freight', headerText: 'Freight', textAlign: 'Right', width: 120, format: 'C2' },
+        { field: 'ShipCountry', headerText: 'Ship Country', editType: 'dropdownedit', width: 150 }
+    ],
+    actionComplete: onActionComplete,
+    load: () => {
+        let instance: IGrid = document.getElementById('Grid').ej2_instances[0];
+        instance.element.addEventListener('mouseup', (e: MouseEventArgs) => {
+            if (e.target.classList.contains("e-rowcell")) {
+              if (instance.isEdit)
+                  instance.endEdit();
+              let rowInfo = instance.getRowInfo(e.target);
+              if (rowInfo.column.field === "ShipCountry")
+                  isDropdown = true;
+              instance.selectRow(rowInfo.rowIndex);
+              instance.startEdit();
+            }
+        })
+    },
+    height: 220
+});
+grid.appendTo('#Grid');
+
+function onActionComplete(args) {
+    if (args.requestType =="beginEdit" && isDropdown) {
+        isDropdown = false;
+        let dropdownObj = args.form.querySelector('.e-dropdownlist').ej2_instances[0];
+        dropdownObj.element.focus();
+        dropdownObj.showPopup();
+    }
+}
+
+
 ```
 
 {% endtab %}
@@ -55,7 +113,7 @@ grid.appendTo('#Grid');
 
 You can make a cell editable on a single click with `batch` mode of editing in Grid, by using the [`editCell`](../../api/grid/edit/#editcell) method.
 
-Bind the **mousedown** event for Grid and in the event handler call the [`editCell`](../../api/grid/edit/#editcell) method, based on the clicked target element.
+Bind the **mouseup** event for Grid and in the event handler call the [`editCell`](../../api/grid/edit/#editcell) method, based on the clicked target element.
 
 {% tab template="grid/grid", es5Template="single-click-batch-edit" %}
 
@@ -78,7 +136,7 @@ let grid: Grid = new Grid({
     ],
     load: () => {
         let instance: IGrid = document.getElementById('Grid').ej2_instances[0];
-        instance.element.addEventListener('mousedown', (e: MouseEventArgs) => {
+        instance.element.addEventListener('mouseup', (e: MouseEventArgs) => {
             if (e.target.classList.contains("e-rowcell")) {
                 let index: number = parseInt(e.target.getAttribute("Index"));
                 let colindex: number = parseInt(e.target.getAttribute("aria-colindex"));