Thanks for your answer. I had a look more and it looks like the MinimumRowHeight property works for headers as well. 

Hello Gleb,

Thank you for your update. I would recommend that you continue with the MinimumRowHeight property, and I am glad it does what you are looking for in this case.

As for the headers, you are correct that there does not currently exist a "MinimumHeaderRowHeight" property, although unless your XamGrid is hierarchical, I would expect that the cells in this particular row would remain a consistent height, and that you could use the HeaderRowHeight property on your XamGrid? It is also worth noting that if your XamGrid is hierarchical, each of the ColumnLayout elements in the XamGrid have a HeaderRowHeight as well, and so you can set the header heights on your child bands this way.

If you wish to get the XamGrid HeaderRow, though, I would recommend that you use the Infragistics.Windows.Utilities class and its GetDescendantFromType method to get an element of the type HeaderCellControl from the visual tree of the XamGrid. From there, you can get the HeaderCell from its Cell property and the HeaderRow from the Row property of the HeaderCell. The code for this would look like the following, where "grid" is the XamGrid:

HeaderCellControl cellControl = Infragistics.Windows.Utilities.GetDescendantFromType(grid, typeof(HeaderCellControl), false) as HeaderCellControl;
HeaderCell cell = cellControl.Cell as HeaderCell;
HeaderRow row = cell.Row as HeaderRow;

From there, you can set the Height on the HeaderRow manually by setting its Height property. If you wish to find which cell has the largest content, you can also loop through the HeaderRow.Cells collection and get the HeaderCellControl from each HeaderCell's Control property. The HeaderCellControl will then have a Content property that returns the content of that particular cell. Note, if a HeaderCell is not currently in view, its Control property will return null, as it will be virtualized.

I hope this helps. Please let me know if you have any other questions or concerns on this matter.

Sincerely,
Andrew
Associate Developer

OK, I found the MinimumRowHeight property which doing what I want for rows.

But I could not find the same property for headers, do you have any idea?

Wow, thanks, it helps me, but could I configure the grid to calculate row/header height automatically using the content of the cell?

I am trying to change default style to adjust to my acceptance criteria and I wouldn't to hardcoded this value. Look like if cell content has big height it will not increase the row/header height, what should I do in this case?

I attached your project where I changed some code. I changed a template of the column and set the height of the text block to 50. Without setting RowHeight property everything works fine. I need to set height less then default(26). Could you help me?