How to solve the issue of the grid control title bar not changing.

To solve the issue of the GridControl header not changing, you can try the following methods:

1. Ensure that the GridControl’s data source is set up correctly: check if the data binding is accurate, make sure the data source is properly set and bound to the GridControl.
2. Make sure the AutoSizeMode property of the column is set correctly: Check if the AutoSizeMode property of the column in GridControl is set to ColumnHeader, so that the header can adjust automatically.
3. Manually adjust column width: If automatic adjustment of column width does not work, you can try manually adjusting the width of the column. This can be done by setting the Width property of the GridColumn or using the BestFit method to adjust the column width.
4. Ensure the correct theme is being used: Check if the theme currently applied is set correctly. Certain themes may affect the display of the title bar.
5. Check for custom styles or templates: If the GridControl’s style or template has been customized, it may affect the display of the title bar. Make sure that the style or template does not modify or hide the title bar.

If the above methods do not solve the problem, it may be necessary to examine more code or provide more information in order to better understand the issue and provide a more accurate solution.