998800: Prepare the UG documentation content for the AIAssistView input toolbar header template and prompt request event support.

wpf-toc.html

@@ -141,6 +141,7 @@
             <li><a href="/wpf/AI-AssistView/Stop-Responding">Stop Responding</a></li>
             <li><a href="/wpf/AI-AssistView/Response-Toolbar">Response Toolbar</a></li>
             <li><a href="/wpf/AI-AssistView/Input-Toolbar">Input Toolbar</a></li>
+             <li><a href="/wpf/AI-AssistView/Events">Events</a></li>
         </ul>
     </li>
 	<li>

wpf/AI-AssistView/Events.md

@@ -0,0 +1,39 @@
+---
+layout: post
+title: Event in WPF AI AssistView (SfAIAssistView) | Syncfusion
+description: Learn here all about Events support in Syncfusion AI AssistView control, its elements and more details.
+platform: wpf
+control: SfAIAssistView
+documentation: ug
+---
+
+# Event in WPF AI AssistView (SfAIAssistView)
+
+## PromptRequest event
+
+This event notifies users when a prompt is submitted in the control. It can be used to validate user input before processing or trigger custom actions based on the prompt content. The input message and its details are passed through the PromptRequestEventArgs. This argument provides the following details:
+
+InputMessage : Represents the input message value of the AIAssistView.
+Handled : Boolean value indicating whether the input message in the Messages collection has been handled by the event.
+
+{% tabs %}
+{% highlight xaml %}
+
+<syncfusion:SfAIAssistView x:Name="sfAIAssistView"
+                            CurrentUser="{Binding CurrentUser}" 
+                            Messages="{Binding Chats}" PromptRequest="AIAssistView_PromptRequest"/>
+
+{% endhighlight %} 
+{% highlight C# %}
+
+SfAIAssistView sfAIAssistView = new SfAIAssistView();
+sfAIAssistView.PromptRequest += AIAssistView_PromptRequest;
+
+private void AIAssistView_PromptRequest(object sender, PromptRequestEventArgs e)
+{
+    IMessage message = e.InputMessage;
+    bool result = e.Handled;
+}
+
+{% endhighlight %}
+{% endtabs %}

wpf/AI-AssistView/Input-Toolbar.md

@@ -121,3 +121,54 @@ private void AiAssistView_InputToolbarItemClicked(object sender, InputToolbarIte
 
 {% endhighlight %}
 {% endtabs %}
+
+## Input toolbar header template
+
+This feature allows users to customize the header section of the input area using a flexible template. The layout and styling of the header can include elements such as file upload information, error details, notifications, or other custom components to display relevant information.
+
+{% tabs %}
+{% highlight xaml %}
+
+<syncfusion:SfAIAssistView 
+       x:Name="sfAIAssistView"  
+       CurrentUser="{Binding CurrentUser}"  
+       Messages="{Binding Chats}">
+    <syncfusion:SfAIAssistView.InputToolbarHeaderTemplate>
+        <DataTemplate>
+            <Border>
+                <ItemsControl ItemsSource="{Binding DataContext.Files, RelativeSource={RelativeSource AncestorType=syncfusion:SfAIAssistView}}">
+                    <ItemsControl.ItemsPanel>
+                        <ItemsPanelTemplate>
+                            <WrapPanel Orientation="Horizontal"/>
+                        </ItemsPanelTemplate>
+                    </ItemsControl.ItemsPanel>
+                    <ItemsControl.ItemTemplate>
+                        <DataTemplate>
+                            <Border BorderBrush="LightGray" BorderThickness="1" CornerRadius="4" Margin="4" Padding="4">
+                                <StackPanel Orientation="Horizontal">
+                                    <Viewbox Width="22" Height="22">
+                                        <Grid>
+                                            <Path Data="M19.5 20V9.12132C19.5 8.7235 19.342 8.34196 19.0607 8.06066L13.9393 2.93934C13.658 2.65804 13.2765 2.5 12.8787 2.5H6C5.17157 2.5 4.5 3.17157 4.5 4V20C4.5 20.8284 5.17157 21.5 6 21.5H18C18.8284 21.5 19.5 20.8284 19.5 20Z" Fill="white"/>
+                                            <Path Data="M12.8789 2C13.4093 2.00006 13.9179 2.21092 14.293 2.58594L19.4141 7.70703C19.7891 8.08205 19.9999 8.59074 20 9.12109V20C20 21.1046 19.1046 22 18 22H6C4.89543 22 4 21.1046 4 20V4C4 2.89543 4.89543 2 6 2H12.8789ZM6 3C5.44772 3 5 3.44772 5 4V20C5 20.5523 5.44772 21 6 21H18C18.5523 21 19 20.5523 19 20V9.12109C19 9.08039 18.9971 9.03999 18.9922 9H15C13.8954 9 13 8.10457 13 7V3.00781C12.96 3.00292 12.9196 3.00001 12.8789 3H6ZM14 7C14 7.55228 14.4477 8 15 8H18.293L14 3.70703V7Z" Fill="#707070"/>
+                                            <Path Data="M16.5 17C16.7761 17 17 17.2239 17 17.5C17 17.7761 16.7761 18 16.5 18H7.5C7.22386 18 7 17.7761 7 17.5C7 17.2239 7.22386 17 7.5 17H16.5ZM16.5 14C16.7761 14 17 14.2239 17 14.5C17 14.7761 16.7761 15 16.5 15H7.5C7.22386 15 7 14.7761 7 14.5C7 14.2239 7.22386 14 7.5 14H16.5ZM16.5 11C16.7761 11 17 11.2239 17 11.5C17 11.7761 16.7761 12 16.5 12H7.5C7.22386 12 7 11.7761 7 11.5C7 11.2239 7.22386 11 7.5 11H16.5Z" Fill="#0F2F56"/>
+                                        </Grid>
+                                    </Viewbox>
+                                    <StackPanel Margin="10,0,10,0" Orientation="Vertical">
+                                        <TextBlock Text="{Binding Name}" Foreground="Black" FontWeight="SemiBold"/>
+                                        <TextBlock Text="{Binding Size}" Foreground="Black" FontSize="11"/>
+                                    </StackPanel>
+                                </StackPanel>
+                            </Border>
+                        </DataTemplate>
+                    </ItemsControl.ItemTemplate>
+                </ItemsControl>
+            </Border>
+        </DataTemplate>
+    </syncfusion:SfAIAssistView.InputToolbarHeaderTemplate>
+
+</syncfusion:SfAIAssistView>
+
+{% endhighlight %} 
+{% endtabs %}
+
+![Input toolbar header template in WPF SfAIAssistView control](aiassistview_images/wpf-aiassistview-input-header-template.webp)