ES-975464 - Resolve the ReadMe file length issue in this sample repository

Author: SreemonPremkumarM

README.md

@@ -1,2 +1,41 @@
-# How-to-set-the-images-for-treenodeadv-in-the-winforms-treeviewadv
-This session describes how to set the images for treenodeadv in the winforms treeviewadv.
+# How to set the images for TreeNodeAdv in the WinForms TreeView
+
+This session describes how to set the images for [TreeNodeAdv](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Tools.Windows~Syncfusion.Windows.Forms.Tools.TreeNodeAdv.html) in the [WinForms TreeView](https://www.syncfusion.com/winforms-ui-controls/treeview) (TreeViewAdv).
+
+`TreeView` control can be customized with images to the Left or Right side of its `TreeNodeAdv`. The images can be set on the Left or Right by using the properties [LeftImageList](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Tools.Windows~Syncfusion.Windows.Forms.Tools.TreeViewAdv~LeftImageList.html) and [RightImageList](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Tools.Windows~Syncfusion.Windows.Forms.Tools.TreeViewAdv~RightImageList.html). It is also possible to specify different images for the individual nodes by using the [LeftImageIndices](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.Tools.TreeNodeAdv.html#Syncfusion_Windows_Forms_Tools_TreeNodeAdv_LeftImageIndices) and [RightImageIndices](https://help.syncfusion.com/cr/windowsforms/Syncfusion.Windows.Forms.Tools.TreeNodeAdv.html#Syncfusion_Windows_Forms_Tools_TreeNodeAdv_RightImageIndices) properties in the `TreeNodeAdv`.
+
+``` csharp
+//Assigns image list to the TreeNodeAdv.
+this.treeViewAdv1.LeftImageList = this.imageList1;
+this.treeViewAdv1.RightImageList = this.imageList1;
+ 
+//Gets the Path of the node and AddSeparatorAtEnd property set to true.
+string path = e.Node.GetPath("\\");
+ 
+//Gets an Array of Directories from the current directory path.
+ArrayList dirs = new ArrayList(Directory.GetDirectories(path));
+ 
+//Adds the Directories as a node in the TreeViewAdv
+for (int i = 0; i < dirs.Count; i++)
+{
+    string dir = (string)dirs[i];
+    int lastIndex = dir.LastIndexOf("\\") + 1;
+    TreeNodeAdv node = new TreeNodeAdv(dir.Substring(lastIndex));
+    e.Node.Nodes.Add(node);
+    node.RightImageIndices = new int[] { 1 };
+}
+ 
+//Sets the Left images for the TreeNodeAdv.
+foreach (TreeNodeAdv node in this.treeViewAdv1.Nodes[0].Nodes)
+{
+    node.LeftImageIndices = new int[] { 1 };
+    node.RightImageIndices = new int[] { -1 };
+}
+ 
+//Sets the Right images for the TreeNodeAdv.
+foreach (TreeNodeAdv node in this.treeViewAdv1.Nodes[0].Nodes)
+{
+    node.RightImageIndices = new int[] { 1 };
+    node.LeftImageIndices = new int[] { -1 };
+}
+```