ComboBox ToggleButton layout breaks when used inside a DataGrid
Author: alraseensaadCreated Jan 15, 2026Updated Sep 6, 2026
LabelsWin 11 Theming
Description
When a ComboBox is placed inside a DataGrid cell, the layout of its ToggleButton becomes misaligned and does not render correctly.
Reproduction Steps
there is a repo to reproduce
then do like that https://github.com/user-attachments/assets/8b5da088-b63c-41ef-98ef-a66199c78c77
Expected behavior
ToggleButton of the combobex should be in the right
Actual behavior
ToggleButton of the combobex shown in the center of the combobox as show in the pictures and videos
Regression?
No response
Known Workarounds
No response
Impact
No response
Configuration
.Net 10 Windows 11 Any
Other information
No response
Source: dotnet/wpf