How to disable a tooltip in UWP its staying in the background when clicked

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C++

WPF

UWP

I have a text block to which i added a tooltip when i select the ListView Item(It opens a file)but still the tooltip remains in the background.How to handle it in UWP/C++.
<textblock
="" text="{x:Bind ProjectPath,Mode=OneWay}" textwrapping="NoWrap" texttrimming="CharacterEllipsis">

What I have tried:

I have a text block to which i added a tooltip when i select the ListView Item(It opens a file)but still the tooltip remains in the background.How to handle it in UWP/C++.
I have tried capturing the event in Onclick of anyitem and SetToolTip(nullptr) but still didnt work