Here are a few steps you can try to fix the transparent background of the ComboBox:
- Check the Fill property of the ComboBox control, if it is set to Transparent, change it to a solid color.
- Check the BackgroundColor property of the parent container of the ComboBox, if it is set to Transparent, change it to a solid color.
- Inspect the other properties of the ComboBox control, such as the BorderColor, BorderThickness, and Opacity properties, and make sure they are set to appropriate values.
- Inspect the other properties of the parent container, such as the Visible property, and make sure they are set to appropriate values.
- Check the theme of the app, if you have custom theme, check the theme setting and see if the color is set correctly.
It's also a good idea to test your app on different devices and browsers to ensure that the changes you've made are applied correctly.
If you continue to have issues, you can try to set the background color of the Combobox to a specific color using the following formula :
ComboBox1.Fill = RGBA(255,255,255,1)
This will set the background color of the Combobox to white, but you can change the RGB value as per your requirement.
Please let me know if you have any further questions, I will be happy to help.
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