How to clear the previous stroke in inkcanvas wpf

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C#

WPF

ink

Hi Everyone

I am working on a project where I have to accept 5 text input from user on the inkcanvas and save the same.
The first input saves and can be retrieved properly. I face problem on retrieving the other inputs. On retrieving, the previous inputs also appear.

Before entering the input I clear the inkcanvas using the following code:

this.inkCanv.Strokes.Clear();

But still the previous inputs appear on retrieving.

Although when I stop the application and start it again, the input is saved and retrieved in the correct manner.

What may be the issue??
How to clear the inkcanvas in the proper way.

Thanks in advance.