Editing userform record

Hello Everyone

I have userform named “Operation” with
1-Save button
2-search button
3-Edit button

1-Save Button
Copies the values in the different textboxes to sheet named “DT”, in a new row
2- Search button
When the search value entered to “Textsearch” box, pressing search button populates the record values to the different text boxes
3-Update button
I need to use it after using the search button to edit the record values and save it in the same row, what it makes now is adding new row not updating the existing row

So my question now , what changes to the update button code is needed to update the existing row not adding new one

Codes for save and update buttons are as follow

Save Button Code

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Update Button Code

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Thanks for your support

Sorry for the yellow color (

any help with this