DataGrid column title tooltip not showing text when hovering

[SavnaniRohan1729]

I have a column title (Title) whose displayed content is short (max 3 characters). However, when I set the column Width, the title still shows trailing dots (ellipsis).

Here’s my XAML snippet:

<dg:DataGridColumn
Title="{x:Static strings:AppResources.SchedHours}"
Width="35"
FilteringEnabled="False"
PropertyName="TotalHoursScheduled"
SortingEnabled="False"
ToolTipProperties.Text="Total Hours Scheduled" />

SchedHours = Total Hours Scheduled

I expected the tooltip (ToolTipProperties.Text) to show the full text when hovering.

Am I missing a setting or configuration