Completed
Last Updated: 15 May 2024 07:49 by ADMIN
Release 2024.2.514 (2024 Q2)
Created by: Al
Comments: 1
Category: DropDownList
Type: Bug Report
1

1. PropertyGridTextBoxEditor becomes smaller height.

2. DropDownListEditorElement also has a small height and popup appear with a vertical scrollbar.

Unplanned
Last Updated: 29 Apr 2024 13:51 by erwin
In this case, the RadDropDownList is added runtime to a RadPanel. An important part is that the Form is located on a HDPI monitor. When the control is added to the form it steals the focus. This is not observed in 100 % DPI.
Unplanned
Last Updated: 17 Apr 2024 14:43 by ADMIN
When I select items 1 through 4 in the drop-down list, the expected event occurs (the selected item is removed from the drop-down list and added to the list view).  When I select the last item in the list (item 5), the item is added to the list and then I get the ArgumentOutOfRangeException. 
Unplanned
Last Updated: 01 Apr 2024 10:56 by ADMIN

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

Unplanned
Last Updated: 19 Mar 2024 09:43 by erwin
When moving between screens with different dpi the PopupOpening event should not be called.
Unplanned
Last Updated: 18 Mar 2024 12:00 by ADMIN

Add option to enter new value that is independent from the data source or items.

Completed
Last Updated: 13 Mar 2024 08:49 by ADMIN
Release 2024.1.312

Setting the DataSource in the SelectedIndexChanged event will trigger the event again. Thus leading to StackOverflowException. 

A possible workaround will be to unsubscribe from the event when changing the DataSource property or raise a flag which can be checked in the event handler.

Completed
Last Updated: 05 Feb 2024 13:49 by ADMIN
Release 2024 Q1 (2024.1.130)

StackOverflowException is thrown when setting SelectedValue in the SelectedIndexChanged event.

To workaround this we can unsubscribe from the event before setting the SelectedValue property and then subscribe again. Another approach is to change the SelectedIndex property in the SelectedIndexChanged or SelectedValue in the SelectedValueChanged event.

Unplanned
Last Updated: 09 May 2023 10:32 by ADMIN
The control does not expand to fit the selected item when it has an image and the DropDownStyle is set to DropDownList.
Unplanned
Last Updated: 14 Apr 2023 11:49 by ADMIN
NullText property should not be ignored when DropDownStyle property is DropDownList.  One shouldn't have to utilize the Text property or create a dummy object to simulate this behavior as discussed here:

https://www.telerik.com/forums/nulltext-property-doesn-t-work-in-raddropdown?actionMode=replyPost&postId=0a021bbb-f40a-4263-a1af-c87b33c17467

Please add!!!  I struggle with this whenever I'm using data bound drop downs.
Completed
Last Updated: 13 Apr 2023 08:25 by ADMIN
Release R2 2023 (LIB 2023.1.413)

Run the attached project and minimize the form. Then, restore to its normal state:

Initial state:

After minimizing the form and restoring to its normal state, the arrow for RadDropDownList seems clipped:

 

Unplanned
Last Updated: 22 Mar 2023 09:44 by ADMIN

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);
        }

 

Unplanned
Last Updated: 24 Feb 2023 14:30 by ADMIN

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.

Completed
Last Updated: 23 Sep 2022 13:07 by ADMIN
Release R3 2022

Use the following code snippet and refer to the attached gif file:

        private RadDropDownList Drop { get; set; }
        public RadForm1()
        {
            InitializeComponent();
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            this.Drop = new RadDropDownList();
            this.Drop.AutoSize = true;
            this.Drop.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDownList; //So users can't write. 
            this.Drop.Font = new Font("Segoe UI", 11.25f, FontStyle.Regular, GraphicsUnit.Point);

            RadListDataItem item = new RadListDataItem();
            item.Value = string.Empty;
            item.Text = string.Empty;
            this.Drop.Items.Add(item);

            RadListDataItem item2 = new RadListDataItem();
            item2.Value = "Hello";
            item2.Text = "Hello";
            this.Drop.Items.Add(item2);

            this.Controls.Add(this.Drop);

            this.Drop.SizeChanged += Drop_SizeChanged;

        }

        private void Drop_SizeChanged(object sender, EventArgs e)
        {
            this.Text = this.Drop.Size.ToString();
        }
    }

Completed
Last Updated: 21 Sep 2022 12:57 by ADMIN
Release R3 2022 SP1

Run the attached project and open the drop down. When the mouse wheel is used, the items in the drop down are expected to scroll.

Expected: items are scrolled.

Actual: nothing happens

Note: It works in .NET 4.8, but not in .NET 6

It worked in R2 2022 SP1.

 

Completed
Last Updated: 16 Dec 2021 16:15 by ADMIN
Release R1 2022
Completed
Last Updated: 17 Aug 2021 13:45 by ADMIN
FIX. RadDropDownList - the control looks different than the rest of the editors when disabled and using DropDownList style
Completed
Last Updated: 02 Aug 2021 08:33 by ADMIN
Release R3 2021 (LIB 2021_2_802)

Using this font is OK:

Font("Calibri", 24, FontStyle.Regular, GraphicsUnit.Pixel)

But using this font is not OK, the Unit is not respected:

Font("Calibri", 24, FontStyle.Italic | FontStyle.Bold, GraphicsUnit.Pixel)

The control also is increased in height.

Completed
Last Updated: 02 Aug 2021 08:33 by ADMIN
Release R3 2021 (LIB 2021_2_802)
Add a RadDropDownList to the form at design time with the Font set in Points. It doesn't redraw when the font unit is changed to Pixels until form is reopened.
Completed
Last Updated: 25 Mar 2021 17:35 by ADMIN
Release R2 2021 (LIB 2021.1.329)
Created by: Mohsin
Comments: 0
Category: DropDownList
Type: Bug Report
1

Please run the attached sample project and you will notice that the arrow button is missing. If you comment applying the Office2019Light theme the arrow is shown.

Fluent theme:

Workaround:

Me.RadDropDownList1.DropDownListElement.ArrowButtonMinWidth = 20

 

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