Add support for UI Automation in RadButton control.

Add support for UI Automation in RadRadioButton control.

 Add support for UI Automation in RadCheckBox control.

When I toggle it, the value changed event handler throws an exception.

If there are boolean application Settings:

It is good to have the possibility to bind the Checked property for RadCheckBox in a similar way like the MS CheckBox offers:

RadCheckBox offers only the Text option:

 

Steps to reproduce:

1. Press the left mouse button inside RadToggleSwitch. (MouseDown)

2. Move the mouse 1 px up or down (but still inside the RadToggleSwitch). (MouseMove)

3. If you release the left mouse button now, the switch will not toggle. (MouseUp)

Only if the mouse location at the moment of Press and Release are exactly the same, the toggle action will be triggered.

RadToggleSwitch can be activated and the slider can be dragged by using the right mouse button as well. That's not supposed to happen.

To recreate the problem:

1. Create a new Telerik Winforms .Net Project
2. Add a radButton
3. Change the font property in the designer to a different size

Workaround: change the font for the TextPrimitive:

Please use the following code snippet and try to resize the button as it is illustrated in the attached gif file: 

See attached to reproduce. 

Workaround: set it to the element:

 radToggleSwitch1.ToggleSwitchElement.Font = new Font("Segoe Script", 18, FontStyle.Regular);

I have RadDiagram on Form and registered ShapeDoubleClicked event on it.

After double click on a shape I open another modal form (let's call it form2). The second mouse click is fired on a modal form (Form2) which in some cases, based on shape position in Form1 (precisely when the shape is in center of the screen), change the state of my ToogleSwitch which is in center of Form2.

Workaround: disable the default scaling and adjust the font and minimum size

        Me.RadRadioButton1.Font = New Font("Arial", 12, FontStyle.Regular)
        Me.RadRadioButton1.ButtonElement.CheckMarkPrimitive.MinSize = New Size(20, 20)
        Dim radioPrimitive As RadioPrimitive = Me.RadRadioButton1.ButtonElement.CheckMarkPrimitive.FindDescendant(Of RadioPrimitive)()
        radioPrimitive.MinSize = New Size(21, 21)

    Public Class CutsomRadioButton
        Inherits RadRadioButton
        Protected Overrides Sub ScaleControl(factor As SizeF, specified As BoundsSpecified)
             
        End Sub
    End Class

To reproduce:
- radSplitButton1.DefaultItem = radSplitButton1.Items[0];
- press and hold the action button
- the styles are not changed

Use the attached project to reproduce. 
- The first click should be disabled and the event should fire after the interval in the delay property. 

Workaround:
Me.RadRepeatButton1.Delay = 7000

Use attached to reproduce.

Workaround:
radDropDownButton1.DropDownButtonElement.DropDownMenu.MinimumSize = new Size(300,0);

To reproduce:
- Set the theme to FluentDark and the set RightToLeft = Yes.

Workaround:
radToggleSwitch1.RightToLeft = RightToLeft.Yes;
radToggleSwitch1.ToggleSwitchElement.Thumb.MinSize = new Size(13, 13);
radToggleSwitch1.ToggleSwitchElement.Thumb.Margin = new Padding(2);

How to reproduce: add several menu items displaying only images to the split button and set the MaximumSize property of the drop-down menu

Workaround:
public RadForm1()
{
    InitializeComponent();

    this.radSplitButton1.DropDownButtonElement.DropDownMenu.MaximumSize = new Size(30, 0);
    RadScrollBarElement element = this.radSplitButton1.DropDownButtonElement.DropDownMenu.PopupElement.FindDescendant<RadScrollBarElement>();
    element.Visibility = Telerik.WinControls.ElementVisibility.Collapsed;
    element.RadPropertyChanging += Element_RadPropertyChanging;
}

private void Element_RadPropertyChanging(object sender, Telerik.WinControls.RadPropertyChangingEventArgs args)
{
    if (args.Property.Name == "Visibility")
    {
        args.Cancel = true;
    }
}

To reproduce:
- Just add a split button to a form and set its theme to Office2010Silver.

Workaround:
radSplitButton1.DropDownButtonElement.ActionButton.Margin = new Padding(0, 0, -1, 0);

Workaround:
            
            this.radDropDownButton1.DropDownButtonElement.DropDownMenu.PopupElement.AutoSize = false;   
            this.radDropDownButton1.DropDownButtonElement.DropDownMenu.PopupElement.Size = new Size(300, 300);

See attached.

Workaround:

radCheckBox1.ButtonElement.MouseEnter += CheckMarkPrimitive_MouseEnter;
radCheckBox1.ButtonElement.MouseLeave += CheckMarkPrimitive_MouseLeave;


private void CheckMarkPrimitive_MouseLeave(object sender, EventArgs e)
{

    radCheckBox1.ButtonElement.CheckMarkPrimitive.Fill.ResetValue(BorderPrimitive.BackColorProperty, ValueResetFlags.Local);
}

private void CheckMarkPrimitive_MouseEnter(object sender, EventArgs e)
{

    radCheckBox1.ButtonElement.CheckMarkPrimitive.Fill.BackColor = Color.Red;
}