Update README.md

Author: Manivannan-E

README.md

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-# how-to-load-listbox-as-drop-down-content-of-wpf-dropdownbuttonadv
-This sample demonstrates how to load a ListBox as the drop-down content of the WPF DropDownButtonAdv control using Syncfusion's WPF UI components. The DropDownButtonAdv is a versatile control that allows developers to embed custom content within its drop-down area, making it ideal for scenarios where more than just simple menu items are needed.
-In this example, the ListBox is used to present a list of selectable items inside the drop-down portion of the button. This approach is useful when you want to provide users with a richer interaction model, such as selecting multiple items or displaying detailed data in a structured format.
-The implementation involves defining the ListBox in XAML and assigning it as the drop-down content of the DropDownButtonAdv. You can also customize the appearance, item templates, and selection behavior of the ListBox to suit your application's needs.
-For more details and step-by-step instructions, refer to the Syncfusion Knowledge Base article:  
-[how-to-load-listbox-as-drop-down-content-of-wpf-dropdownbuttonadv](https://www.syncfusion.com/kb/11237/how-to-load-listbox-as-drop-down-content-of-wpf-dropdownbuttonadv)
+# How to Load ListBox as Drop-Down Content of WPF DropDownButtonAdv
+## Overview
+This sample demonstrates how to load a ListBox as the drop-down content of the Syncfusion WPF DropDownButtonAdv control. DropDownButtonAdv is a versatile UI component that allows developers to embed custom content within its drop-down area, making it ideal for scenarios where more than just simple menu items are needed.
+
+In this example, a ListBox is used to present a list of selectable items inside the drop-down portion of the button. This approach is useful when you want to provide users with a richer interaction model, such as:
+- Selecting multiple items
+- Displaying detailed data in a structured format
+
+##  Implementation Highlights
+- Define the ListBox in XAML.
+- Assign it as the drop-down content of the DropDownButtonAdv.
+- Customize appearance, item templates, and selection behavior as needed.
+
+## Use Case
+This example is ideal for developers building WPF applications that require:
+- Enhanced dropdown functionality
+- Custom UI elements within dropdowns
+- Flexible and interactive user experiences
+
+## Reference
+For detailed guidance and step-by-step instructions, refer to the Syncfusion Knowledge Base article: https://www.syncfusion.com/kb/11237/how-to-load-listbox-as-drop-down-content-of-wpf-dropdownbuttonadv