change style on onmouseover for radlistbox

[vighnesh]

Hello,

How do we change background color of a radlistitem in radlistbox when mouse is over that specific item programatically?
Currently we can see background color getting changed only when item is selected. Thank you.

[Nikolay]

Hi vighnesh,

Thank you for the question.

In order to change the colors of a RadListBoxItem on mouse hover, please subscribe to its MouseEnter and MouseLeave events:

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            for (int i = 0; i < this.radListBox1.Items.Count; i++)
            {
                ((RadListBoxItem)this.radListBox1.Items[i]).MouseLeave += new EventHandler(Form1_MouseLeave);
                ((RadListBoxItem)this.radListBox1.Items[i]).MouseEnter += new EventHandler(Form1_MouseEnter);
            }
        }

        void Form1_MouseEnter(object sender, EventArgs e)
        {
            RadListBoxItem item = sender as RadListBoxItem;
            (((FillPrimitive)item.Children[0])).BackColor = Color.Orange;
            (((FillPrimitive)item.Children[0])).BackColor2 = Color.Red;
            (((FillPrimitive)item.Children[0])).BackColor3 = Color.Red;
            (((FillPrimitive)item.Children[0])).BackColor4 = Color.Red;
        }

        void Form1_MouseLeave(object sender, EventArgs e)
        {
            RadListBoxItem item = sender as RadListBoxItem;
            (((FillPrimitive)item.Children[0])).BackColor = Color.White;
            (((FillPrimitive)item.Children[0])).BackColor2 = Color.White;
            (((FillPrimitive)item.Children[0])).BackColor3 = Color.White;
            (((FillPrimitive)item.Children[0])).BackColor4 = Color.White;
        }
    }

I hope this helps. If you have additional questions, feel free to contact me.

Kind regards,
Nikolay
the Telerik team

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[vighnesh]

Thank you. that worked for me.

[Amir]

I do have the latest version of DevCraft but I cannot find the right lib for the FillPrimitive.

I am not seeing any WinControls.Primitives to add to VS resources!

[Hristo]

Hello Amir,

Thank you for writing.

The FillPrimitive class is located in the Telerik.WinControls.dll assembly, so in order to access them you would need to reference it.

I hope this helps. Should you have further questions please do not hesitate to write back.

Regards,
Hristo Merdjanov
Telerik