Hello Eric,

You can use the following code in Load server-side event of WebSlider:

protected void WebSlider1_Load(object sender, EventArgs e)
{
   WebSlider1.MinimumValue = 1;
   WebSlider1.MaximumValue = 3;
   WebSlider1.SliderType = WebSliderType.Item;
   WebSlider1.Value = 2;

   WebSliderItem item1 = new WebSliderItem();
   item1.Text = "Easy";
   item1.Value = 1;
   WebSlider1.Items.Add(item1);

   WebSliderItem item2 = new WebSliderItem();
   item2.Text = "Normal";
   item2.Value = 2;
   WebSlider1.Items.Add(item2);

   WebSliderItem item3 = new WebSliderItem();
   item3.Text = "Hard";
   item3.Value = 3;
   WebSlider1.Items.Add(item3);
}

Ensure that you have added using ISNet.WebUI.WebSlider in the namespace. Otherwise, it won't recognize WebSliderItem as a class.

The code will simply select Normal level as default selection because its Value is set to 2.

Hope this helps. Thank you.

Regards,
-Martin-