The currently applied theme is VisualStudio2022Light. The button its move down due to the scaling mechanism.

Use the following code snippet and click the button to delete the first item from the BindingList:

        BindingList<DoctorTest> list = new BindingList<DoctorTest>();
        public RadForm1()
        {
            InitializeComponent();
            for (int i = 0; i < 5; i++)
            {
                list.Add(new DoctorTest(i,"Item"+i));
            }
            this.radDropDownList1.DisplayMember = "Name";
            this.radDropDownList1.ValueMember = "Id";
            this.radDropDownList1.DataSource = list;
            this.radDropDownList1.SelectedIndex = 4;
            this.radDropDownList1.SelectedValueChanged+=radDropDownList1_SelectedValueChanged; 
        } 

        private void radDropDownList1_SelectedValueChanged(object sender, EventArgs e)
        {
             RadMessageBox.Show(this.radDropDownList1.SelectedValue +" ---");
        }

        public class DoctorTest
        {
            public int Id { get; set; }
            public string Name { get; set; }

            public DoctorTest(int id, string name)
            {
                this.Id = id;
                this.Name = name;
            }
        }

        private void radButton1_Click(object sender, EventArgs e)
        {
            list.RemoveAt(0);
        }

RadDropDownList gets focused when the DpiScaleChanged is triggered.

Run the attached sample project. When the form is moved from monitor A (100% DPI) to monitor B (150% DPI), every RadDropDownList gets the focus which leads to scrolling the container back to the top.

Hi,

When using a RadDropDownList component and the RadVirtualKeyboard component I have a problem. The AutoCompleteMode.Suggest works fine the first time I click on RadVirtualKeyboard but for the other clics the suggested items don't appears on the screen.

Regards

   Gilles

Please refer to the attached sample project.

To reproduce the problem, we need 2 Monitors with different scaling.
Let's say that Monitor 1 has 150% Scaling and Monitor 2 has 100% (Monitor 2 is the main monitor). When starting the program and click on radbutton1, then an empty form (Toolbox) is shown. Move the Toolbox form to the other monitor and then open the RadDropDownList. The problem is that the drop-down is shown not under the control.

Please refer to the attached project.