Questions on UI for WinForms Forum

1 answer

55 views

Is it possible to disable all HDPI scaling in a net core project

I would to off all scaling in my project and just design for a single type of screen size of 1024 x 768. When I place a control on the form and run it is in correct position, When I go back in the designer after in has moved outside the form, I have tried 'Telerik.WinControls.RadControl.EnableRadAutoScale' in the program.cs bnut didnt appear to work

Ideas?

Form

answered on 16 Jun 2026

1 answer

59 views

make a cell read-only, except when creating a new row

Make a cell read-only, except when a new row is created.

I want to be able to make a cell in a column read-only when I display the grid.
But if I add a row, I want the cell in that column to no longer be read-only.
Should this be handled in cellbeginEdit?
I read that you could use this line: e:row:isnewrow but it doesn’t compile.

Thank you for your feedback.

GridView

answered on 10 Jun 2026

1 answer

51 views

Major software issues

Please watch the video.
1. https://www.telerik.com/products/winforms/documentation/controls/navigationview/hierarchy-support
It cannot be dragged or moved at all.
2. Adding forms using an interface presents a host of problems, especially adding submenus.

NavigationView

answered on 08 Jun 2026

1 answer

138 views

The font was not changed.

NavigationView

answered on 08 Jun 2026

1 answer

34 views

error message

Please watch the video.

NavigationView

answered on 08 Jun 2026

1 answer

62 views

[Solved] When the ForeColor is changed in the TextChanged event, the MouseOver (hover) effect stops working.

私はRadTextBoxとRadDropDownListを使っており、TextChangedイベントが発生し値が無効と判断されると、テキストの色が赤に変わるロジックを実装しています。

エラーが解決したら、テキストの色を元の色に戻します。しかし、テキストの色をリセットした後、マウスオーバー(ホバー)効果がもう機能しなくなったようです。

通常、RadTextBoxにカーソルを合わせると、状態(2)から状態(1)へと変化します(状態(1)と状態(2)の定義については添付の画像を参照してください)。しかし、TextChangedイベントが発生したRadTextBoxの場合、テキストの色が復元された後も(1)の状態にとどまります。同じ問題はRadDropDownListでも発生します。

テキストの色をリセットした後に、元のMouseOverの動作を復元するための追加の設定や方法はありますか?

DropDownList

TextBox

answered on 03 Jun 2026

3 answers

506 views

After 2021.2.505.1 update, VS 2019 stops responding WinForms Converter extension?

I'm getting the following error every time I load any project in VS 2019 (16.9.4)

"Visual Studio stopped responding for 12 seconds. Disabling the extension Progress Telerik WinForms Converter 2021.2.505.1 might help."

See attached image of error.

How to resolve?

Cheers, Rob.

EDIT: for any project, WPF, UWP, etc. (not just WinForms)

Visual Studio Extensions

answered on 29 May 2026

1 answer

78 views

[Solved] About the appearance of the color when a CommandBarButton is focused.

Please refer to the image. The color of the CommandBarButton in the command bar changes when the cursor hovers over it—where can I configure the property for this color? (the red-framed area in the image)

CommandBar

answered on 27 May 2026

9 answers

436 views

Scroll Schedule when dragging appointment

Hi,

In week view, is it possible to auto scroll the schedule when dragging the appointment to the right or left edges of the current view, thus allowing appointments to be dragged into another week?

Does anyone have any working sample code?

Thanks

Simon

Scheduler and Reminder

answered on 08 May 2026

1 answer

275 views

Refreshing grid from BindingList

Given the UI below which is bound to BindingLists implementing INotifyChanged interface, I'm seeing some weird behavior.

If I click on on a top row like Account or Active Contract, the items under it check/uncheck correctly. I'm doing this via the gvGrids_CellEndEdit event like this:

private void gvGrids_CellEndEdit(object sender, GridViewCellEventArgs e)

{

string formName = e.Row.Cells["FormDescr"].Value.ToString();

foreach(var item in gridOptionsListDetail.Where(n => n.FormDescr == formName))
{
item.Selected = (bool)e.Value;
}
}

The problem occurs when I click on the checkbox to the left of Form. Doing so fires the HeaderCellToggleStateChanged event:

private void gvGrids_HeaderCellToggleStateChanged(object sender, GridViewHeaderCellEventArgs e)

{
if (e.Column.Name == "Selected")
{
ToggleGrids(e.State == Telerik.WinControls.Enumerations.ToggleState.On);

gvGrids.MasterTemplate.Refresh();

gvGrids.TableElement.Update(GridUINotifyAction.DataChanged);
}
}

This event will check the Account and Active Contract checkboxes and the ToggleGrids() method will check the Selected property in the underlying BindingList but the subgrid will not refresh unless I scroll down and up again. The weird thing is that If I click the Select All/Deselect All links, which call the same ToggleGrids() method, all works well.

What am I missing here?

Thanks

Carl

GridView

answered on 07 May 2026