Update README.md

README.md

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 # how-to-bind-data-using-freshMvvm-in-.net-maui-listview
+
 This demo explains about how to bind the data using FreshMVVM in .NET MAUI ListView
+
+## C#
+
+//Model.cs
+ public class Contacts : FreshBasePageModel
+    {
+        private string contactName;
+        private string contactNumber;
+        private ImageSource image;
+
+        public Contacts(string name, string number)
+        {
+            contactName = name;
+            contactNumber = number;
+        }
+
+        public Contacts()
+        {
+
+        }
+
+        public string ContactName
+        {
+            get { return contactName; }
+            set
+            {
+                if (contactName != value)
+                {
+                    contactName = value;
+                    this.RaisePropertyChanged();
+                }
+            }
+        }
+
+        public string ContactNumber
+        {
+            get { return contactNumber; }
+            set
+            {
+                if (contactNumber != value)
+                {
+                    contactNumber = value;
+                    this.RaisePropertyChanged();
+                }
+            }
+        }
+
+        public ImageSource ContactImage
+        {
+            get { return this.image; }
+            set
+            {
+                this.image = value;
+                this.RaisePropertyChanged();
+            }
+        }
+    }
+
+// ViewModel.cs
+public class ListViewPageModel : FreshBasePageModel
+{
+    ---    
+}
+
+## Requirements to run the demo
+
+* [Visual Studio 2017](https://visualstudio.microsoft.com/downloads/) or [Visual Studio for Mac](https://visualstudio.microsoft.com/vs/mac/)
+* Xamarin add-ons for Visual Studio (available via the Visual Studio installer).
+
+## Troubleshooting
+
+### Path too long exception
+
+If you are facing path too long exception when building this example project, close Visual Studio and rename the repository to short and build the project.