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

In this particular case, we have custom RadButtonElements placed in the title bar of the form. We have subscribed to the click event on each button. In the click event handlers, we are showing file dialogs. When clicking one time to show a dialog and the mouse leaves the title bar bounds, this triggers the click event twice, thus opening another dialog.

As a workaround, we could use the MouseDown event instead or raise a flag in the click event handler.

Completed
Last Updated: 13 Apr 2023 08:25 by ADMIN
Release R2 2023 (LIB 2023.1.413)

To reproduce, use the following code and minimize the child form:

    public partial class RadForm1 : Telerik.WinControls.UI.RadForm
    {
        public RadForm1()
        {
            InitializeComponent();
            this.IsMdiContainer = true;
 
            RadForm form = new RadForm();
            form.Text = "MDI Child";
            form.MdiParent = this;
            form.MinimumSize = new Size(800,600);
            form.Show(); 
        }
    }

Completed
Last Updated: 27 Mar 2023 07:35 by ADMIN
Release Release R1 2023 SP1
In this particular case, we have RadGridView inside RadDock control. The RadGridView is grouped. The ScrollViewer inside the group is trying to load while maximizing the Form. At some point, the ScrollViewer collapsed which leads to re-arranging the items inside the panel and the application hangs.
Completed
Last Updated: 27 Mar 2023 06:39 by ADMIN
Release R1 2023 SP1

To reproduce:

1. Create a new .NET 7 project and add a RadForm to it with a single control (e.g. RadButton).

2. Open the designer and have a look at the form's Size.

3. Move the button and save the changes

4. Close the designer and open it again.

Expected result: the RadForm's Size is unchanged

Actual result: the RadForm gets smaller, its height is reduced.

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

Follow the steps which are illustrated in the gif file:

1. Create new .NetFrameWork Telerik WinForm project

2. Set the MinSize of the RadForm1 to 300, 300

3. Set the MaxDize of the RadForm1 to 600, 600

4. Save the Form

5. Close the form

6. Build the project

7. Add new Telerik form, inherit from RadFrom1 via the Add New Item form and picking Inherited Form (Windows Forms).  When prompted, pick RadForm1.

8. Resize the new form

9. Save and Close the form.

10. Open RadForm1

11. Reset the Max Size

12. Save and Close RadForm1

13. Rebuild the project

14. Open the inherited form

Workaround: instead of adding an Inherited Form, add a Telerik RadForm. Then, change it to inherit from RadForm1:

Completed
Last Updated: 04 May 2022 06:42 by ADMIN
Release R2 2022

Updating from Version 2022.1.118 to 2022.1.222 breaks high dpi layout for existing dialogs at 150% DPI scaling:

Expected:

Actual:

Workaround: Use the MS Form

 

Completed
Last Updated: 04 May 2022 07:29 by ADMIN
Release R2 2022

To reproduce:

  1. Set your monitor DPI to 200%(or any order value different from 100%). You need to Log off(or restart) in order to apply correctly the new DPI settings.
  2. Create a UserControl with some RadControls inside.
  3. Add the UserControl at design time as a child control to a RadForm.
  4. Run the RadForm and you will see that the controls inside the user control are scaled twice.

Workaround:

In the OnLoad method of RadForm do through all nested RadControls inside the UserControl and downscale them to the same DPI as the RadForm.

public class RadForm1 : RadForm
{
    protected override void OnLoad(EventArgs e)
    {
        base.OnLoad(e);

        SizeF dpiScaleFactor = RootElement.DpiScaleFactor;
        FixDpiScaling(this.Controls, dpiScaleFactor);
    }

    private void FixDpiScaling(Control.ControlCollection controls, SizeF dpiScaleFactor)
    {
        foreach (Control item in controls)
        {
            RadControl radControl = item as RadControl;
            if (radControl != null)
            {
                SizeF dpi2 = radControl.RootElement.DpiScaleFactor;
                if (dpiScaleFactor.Width != dpi2.Width)
                {
                    SizeF fixDpiCoefficient = new SizeF(dpiScaleFactor.Width / dpi2.Width, dpiScaleFactor.Height / dpi2.Height);
                    radControl.Scale(fixDpiCoefficient);
                }
            }

            FixDpiScaling(item.Controls, dpiScaleFactor);
        }
    }
}

Completed
Last Updated: 09 Nov 2021 09:01 by ADMIN
Release R3 2021 SP1
Completed
Last Updated: 15 Feb 2021 10:48 by ADMIN
Release R1 2021 SP2

To reproduce:

1. Use the 2020.3.1020 Telerik version 

2. Show RadForm and set MinimumSize property

3. Double Click the Title Bar to maximize the form or click the Maximize button

4. Double Click the Title Bar again and see that no border is shown.

Thanks

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

Please run the sample project on 100% and 150% DPI scaling. You will notice that with 100% the shown form is centered to its parent, but with 150% it is shifted:

Completed
Last Updated: 03 Jun 2020 16:31 by ADMIN
Release R2 2020 SP1 (LIB 2020_2_603)

 

Using the spellchecker, and the popup when using themes overlaps as per image below. If i make : 


        e.SpellingForm.Controls("buttonIgnoreAll").Visible = False
The next one below does the same. How do i modify this ? 

 

 

 

Regards

Gavin

Completed
Last Updated: 21 Jan 2020 12:39 by ADMIN
Release R1 2020 SP1 (LIB 2020_1_127)
A NullReferenceException occurs when closin Visual Studio keeping the form opened for editing. If I close the form's designer, before closing the Visual Studio, this not happen.
Completed
Last Updated: 23 Jan 2020 11:59 by ADMIN
Release R1 2020 SP1 (LIB 2020_1_127)
Created by: Shreesh
Comments: 4
Category: Form
Type: Bug Report
0

When a set of RadForms is used inside an MDI Form and are maximized, after some time, the child forms flicker continuously.

See the attached video.

The same behaviour DOES NOT happen when regular Windows Form is used.

 

Completed
Last Updated: 15 Oct 2019 10:26 by ADMIN
Release R3 2019 SP1

The issue exists in Fluent, Material, and Crystal themes.

To reproduce:

Create an MDI application and maximize the child form. 

The child form buttons are not styled. 

Completed
Last Updated: 03 Oct 2019 11:40 by ADMIN
Release R3 2019 SP1 (LIB 2019.3.1007)
Created by: Kashif
Comments: 2
Category: Form
Type: Bug Report
1

Dear Admins.

I'm developing an application which have Parent (MDI) and some child forms.

Using Telerik UI for WinForms R2 2019 SP1.

Code for Opening the Form.

01.private void MnuItemSuppliers_Click(object sender, EventArgs e)
02.{
03.    if (!IsFormOpen(typeof(frmSupplierList)))
04.    {
05.        CloseChildForm();
06.        frmSupplierList m_frmListSupplier = new frmSupplierList
07.        {
08.            Width = this.Width,
09.            Height = this.Height,
10.            MdiParent = this,
11.            MaximizeBox = false,
12.            MinimizeBox = false,
13.            ControlBox = false,
14.            WindowState = FormWindowState.Maximized
15.        };
16.        m_frmListSupplier.Show();
17.    }
18.}

 

But Still i can see the ControlBox and Minimize and Maximize Buttons on the Top right Corner. 

Image Attached.

When i Use the Same Coding and Properties using Standard Windows Forms. It behave like as required.

Please help what is wrong with this.

Completed
Last Updated: 16 May 2019 06:03 by ADMIN

Hi

Please note that I have installed trial version of telerik ui winforms desktop. The problem now is when I open the child page it always takes minimum 4 seconds to load.The child page just contains the radgridview and loads just 6000records.

We are not satisfying with this performance.

Based on the support we will decide to purchase this tool.

We need your assistance asap.

1.download and install the telerik trial version for ui winforms for desktop latest version 2019. 219.

2.open new project with blank template.

3.create radform and set Radform1 as mdi form. And open a child page from this..

CHild page takes 4 seconds to load. Though child page has only grid view and loads only 6000 records

Thanks

Sathish.

Completed
Last Updated: 25 Jan 2019 07:50 by ADMIN
ADMIN
Created by: Dimitar
Comments: 1
Category: Form
Type: Bug Report
3
Use attached to reproduce.
Case 1 - the initial scaling is not correct and the showing dilog1 results in a different DPI each time. 
Case 2 - the AllowTheming property disabled the scaling - see dialog 2.

Workaround:

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;
this.AutoScaleDimensions = new System.Drawing.SizeF(96F, 96F);

public class MyRadForm : RadForm
{
    protected override void HandleDpiChanged()
    {
        if (TelerikHelper.IsWindows10CreatorsUpdateOrHigher)
        {
            return;
        }

        base.HandleDpiChanged();
    }

}

Completed
Last Updated: 15 Feb 2018 07:48 by ADMIN
Use attached to reproduce. This was working in version 2017.1.221

Workaround:
private void Instance_LocationChanged(object sender, EventArgs e)
{
    var box = sender as RadMessageBoxForm;
    box.Location = new Point((this.Location.X + this.Width / 2) - (box.Width/2), (this.Location.Y + this.Height / 2 )- (box.Height/2));  
    
}
Completed
Last Updated: 02 Mar 2018 09:47 by ADMIN
To reproduce:
- Set the icon of the form.
- Set the FormBorderStyle to FixedToolWindow.
- The default icon is displayed in the taskbar.

Workaround:
public RadForm2()
{
    InitializeComponent();
    this.ShowIcon = true;
  
}
protected override void OnShown(EventArgs e)
{
    base.OnShown(e);
    this.FormElement.TitleBar.IconPrimitive.Visibility = ElementVisibility.Collapsed;
}
Completed
Last Updated: 15 Dec 2017 12:35 by ADMIN
How to reproduce: create a DPI-aware application and set the AllowAero property of the ribbon form to false, the titlebar will not be themed

Workaround: override the ScaleControl method of in the RadRibbonForm instance in the project
Protected Overrides Sub ScaleControl(ByVal factor As SizeF, ByVal specified As BoundsSpecified)
    MyBase.ScaleControl(factor, specified)

    If Me.HasOwnToolbar AndAlso Me.AllowTheming AndAlso Not Me.IsDesignMode AndAlso Me.IsInitialized Then
        Me.AllowTheming = False
    End If
End Sub
1 2 3 4 5 6