Add missing image, Add another KB

Author: DinkoK

knowledge-base/chartview-scatterseries-closest-point-mouseclick.md

@@ -19,6 +19,8 @@ ticketid: 1686235
 
 This article will demonstrate how to determine the nearest ScatterDataPoint to a mouse click location using the mouse click position. 
 
+![WinForms RadChartView ClosestDataPoint](images/chartView-closestdatapoint.png)
+
 ## Solution
 
 To achieve this, calculate the axis values corresponding to the mouse click position on the chart. Then iterate over the data points in the series and determine the closest one. 

knowledge-base/menu-highlight-last-click-item.md

@@ -0,0 +1,132 @@
+---
+title: Highlight the Last Selected Menu Item In RadMenu 
+description: Learn how to keep selected menu items highlighted in RadMenu for WinForms by implementing custom code.
+type: how-to
+page_title: Highlighting Selected Menu Items in RadMenu for WinForms
+slug: menu-highlight-last-click-item
+tags: menus, winforms, menu-item, highlight
+res_type: kb
+ticketid: 1687046
+---
+
+## Environment
+
+|Product Version|Product|Author|
+|----|----|----|
+|2025.1.211|RadMenu for WinForms|[Dinko Krastev](https://www.telerik.com/blogs/author/dinko-krastev)|
+
+## Description
+
+A common requirement is to highlight the last selected RadMenuItem. This article will demonstrate how this can be achieved.
+
+## Solution
+
+RadMenu for WinForms does not support this behavior out of the box. To achieve it, use custom code to manage the highlighting of the menu items. Subscribe to the `Click` event of each `RadMenuItem` and implement logic to change the `BackColor` property of the clicked item while resetting the previous item's background.
+
+### Example Code
+
+Below is a code example demonstrating the custom solution:
+
+````C#
+
+public partial class Form2 : Form
+{
+    public Form2()
+    {
+        InitializeComponent();
+        DesertTheme desertTheme = new DesertTheme();
+        ThemeResolutionService.ApplicationThemeName = desertTheme.ThemeName;
+        foreach (RadMenuItem item in this.radMenu1.Items)
+        {
+            item.Click += RadMenuItem_Click;
+            foreach (RadMenuItem subItem in item.Items)
+            {
+                subItem.Click += RadMenuItem_Click;
+            }
+        }
+    }
+    RadMenuItem lastSelectedMenuItem = null;
+    RadMenuItem lastSelectedSubMenuItem = null;
+
+    void ResetColor(RadMenuItem radMenuItem)
+    {
+        if (radMenuItem != null)
+        {
+            radMenuItem.FillPrimitive.BackColor = Color.Transparent;
+            radMenuItem.FillPrimitive.GradientStyle = GradientStyles.Linear;
+        }
+    }
+
+    void ResetColor(RadMenuItem radMenuItem)
+{
+    if (radMenuItem != null)
+    {
+        radMenuItem.FillPrimitive.ResetValue(Telerik.WinControls.Primitives.FillPrimitive.BackColorProperty, Telerik.WinControls.ValueResetFlags.Local);
+        radMenuItem.FillPrimitive.ResetValue(Telerik.WinControls.Primitives.FillPrimitive.GradientStyleProperty, Telerik.WinControls.ValueResetFlags.Local);
+    }
+}
+
+    private void RadMenuItem_Click(object sender, EventArgs e)
+    {
+        var newSelectedMenuItem = sender as RadMenuItem;
+
+        if (newSelectedMenuItem != null)
+        {
+            if (lastSelectedMenuItem == null)
+            {
+                lastSelectedMenuItem = newSelectedMenuItem;
+                ChangeColor(lastSelectedMenuItem);
+            }
+            else
+            {
+                var text1 = this.lastSelectedMenuItem.Text;
+                var text2 = newSelectedMenuItem.Text;
+
+                if (newSelectedMenuItem.HierarchyParent is RadMenuItem parentMenuItem)
+                {
+                    if (lastSelectedSubMenuItem != newSelectedMenuItem)
+                    {
+                        ResetColor(lastSelectedSubMenuItem);
+                    }
+                    lastSelectedSubMenuItem = newSelectedMenuItem;
+                    ChangeColor(lastSelectedSubMenuItem);
+
+                    if (lastSelectedMenuItem != null)
+                    {
+                        ResetColor(lastSelectedMenuItem);
+                    }
+
+                    lastSelectedMenuItem = parentMenuItem;
+                    ChangeColor(parentMenuItem);
+
+                }
+                else
+                {
+                    if (lastSelectedMenuItem == newSelectedMenuItem)
+                    {
+                        return;
+                    }
+                    if (lastSelectedSubMenuItem != null)
+                    {
+                        ResetColor(lastSelectedSubMenuItem);
+                    }
+
+                    ResetColor(lastSelectedMenuItem);
+
+                    lastSelectedMenuItem = newSelectedMenuItem;
+                    ChangeColor(newSelectedMenuItem);
+                }                    
+            }
+        }
+    }
+}
+
+````
+
+### Notes
+
+- The code supports one level of subitems. For deeper hierarchies, extend the logic to support multiple levels of hierarchy.
+
+## See Also
+
+- [RadMenu Documentation](https://docs.telerik.com/devtools/winforms/controls/menus/menu/overview)