[ADF-3745] Added Confirm dialog docs (#4193)

docs/content-services/README.md

@@ -58,6 +58,7 @@ for more information about installing and using the source code.
 
 | Name | Description | Source link |
 | ---- | ----------- | ----------- |
+| [Confirm dialog](confirm.dialog.md) | Requests a yes/no choice from the user. | [Source](../../lib/content-services/dialogs/confirm.dialog.ts) |
 | [Library dialog](library.dialog.md) | Creates a new Content Services document library/site. | [Source](../../lib/content-services/dialogs/library/library.dialog.ts) |
 
 ## Directives

docs/content-services/confirm.dialog.md

@@ -0,0 +1,47 @@
+---
+Title: Confirm dialog component
+Added: v2.3.0
+Status: Active
+Last reviewed: 2019-01-22
+---
+
+# [Confirm dialog component](../../lib/content-services/dialogs/library/library.dialog.ts "Defined in library.dialog.ts")
+
+Requests a yes/no choice from the user.
+
+![Confirm dialog](../docassets/images/ConfirmDialog.png)
+
+## Basic Usage
+
+```ts
+constructor(private dialog: MatDialog) {}
+
+...
+
+let files = [
+    // Files defined here...
+];
+
+const dialogRef = this.dialog.open(ConfirmDialogComponent, {
+    data: {
+        title: 'Upload',
+        message: `Are you sure you want to upload ${files.length} file(s)?`
+    },
+    minWidth: '250px'
+});
+
+dialogRef.afterClosed().subscribe((result) => {
+    if (result === true) {
+        event.resumeUpload();
+    }
+});
+```
+
+## Details
+
+This component lets the user make a yes/no choice to confirm an action. Use the
+Angular [`MatDialog`](https://material.angular.io/components/dialog/overview)
+service to open the dialog, as shown in the example, and pass a `data` object
+with properties for the `title` and `message` to show. The `afterClosed` event
+of the [`MatDialog`](https://material.angular.io/components/dialog/overview)
+gives you the user's choice via the `result` parameter.