Hello,

I have noticed a bug in the Autocompletebox.

When the Autocompletebox.Multiline is enabled and setting the text to an item with multiple delimiters where the items are shown on multiple lines (see image).

When clicking on one of the items in line 2 or 3, the value e.selectionstart returned on the Selectionchanged-event has a wrong value.

On line 2 the e.selectionstart is 1 too much

Imports Telerik.WinControls.UI

Public Class RadForm1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim str As String = "Item 1;Item 2;Item 3;Item 4;Item 5;Item 6;Item 7;Item 8;Item 9;Item 10;"
        RadAutoCompleteBox1.Multiline = True
        RadAutoCompleteBox1.Text = str

    End Sub

    Private Sub RadAutoCompleteBox1_SelectionChanged(sender As Object, e As SelectionChangedEventArgs) Handles RadAutoCompleteBox1.SelectionChanged
        Dim SelectedItem As String = RadAutoCompleteBox1.Text.Substring(e.SelectionStart, e.SelectionLength)
        Debug.Print(SelectedItem)
    End Sub
End Class

Syntax highlighting editor that supports C# and intelisense

Use the following code to setup RadMaskedEditBox. When you start typing you will notice that the ValueChanged event is fired but the ValueChanging is not: 

            this.radMaskedEditBox1.MaskType = MaskType.Standard;
            this.radMaskedEditBox1.Mask = "AAAA";

            this.radMaskedEditBox1.ValueChanged += radMaskedEditBox1_ValueChanged;
            this.radMaskedEditBox1.ValueChanging += radMaskedEditBox1_ValueChanging;

Populate a RadListView with data, apply ListViewType.DetailsView and disable the ShowGridLines property.

With the ControlDefault theme it works, but if you apply the CrystalDark theme, the grid lines are still visible

Description: Text alignment of the title bar caption can not be changed. 

this.FormElement.TitleBar.TitlePrimitive.Alignment = ContentAlignment.MiddleCenter;

To reproduce:
- Add 500 items.
Then set the following::
radDropDownList1.DropDownListElement.AutoCompleteSuggest.DropDownList.DefaultItemsCountInDropDown = 500;

Workaround:
radDropDownList1.DropDownListElement.AutoCompleteSuggest = new MySuggestHelper(this.radDropDownList1.DropDownListElement);

class MySuggestHelper : AutoCompleteSuggestHelper
{
    public MySuggestHelper(RadDropDownListElement owner ) : base (owner)
    {
    }
    public override void ShowDropDownList()
    {
        base.ShowDropDownList();
        this.DropDownList.Popup.UpdateLocation();
    }
}

Use attached to reproduce.

Tested on Windows 10 (1607 and 1703)

Workaround:

RadControl.EnableDpiScaling = False

Workaround:

If possible set the Dock property to Fill.

How to reproduce:

When I select Auto option in zoom drop-down list the image will not be resized to fit available space. The only way to auto-fit the image is to type "Auto" in drop-down list. Also, when editor form is resized while "Auto" option is selected the zoom will not be updated.

Additional methods OnResize and DropDownList_SelectedIndexChanged are required to update the zoom, because in DropDownList_TextChanged event handler this.dropDownList.SelectedIndex is always set to -1 when any option is selected with mouse, and will be different from -1 only when a text matching an option is entered with keyboard.