Show Value of Selected Coins

[MaxHillebrand]

Current Problem

In the send tab GUI, the coin control interface is great, but when I select more then one coin, I don't easily know exactly how many bitcoin they sum up to. I have to click on Max to see the total sum, then click again Clear to type in how much I actually want to send.

Proposed Solution

Below / next to Max show the total sum value of all the selected coins. When no coins are selected, show nothing or the total balance; when all coins are selected, show the total balance.

Alternative and Advanced Implementation

Further support would be to type in how much I want to send, and then highlight the branch and bound [or some other] coin selection suggestion. I would still need to select which coins exactly I want to use, but there is GUI suggestion to help.

[nopara73]

Maybe a tooltip could give some info automatically triggered by multiple coin selection?

[mb300sd]

+1 on this. Selecting the proper amount is difficult, and I keep clicking send and seeing the error message to know how much more I need to select.

[lontivero]

I was trying to implement this with an Avalonia Popup control but I only got a black rectangle in the middle of the screen ;) I wanto to see how @danwalmsley implemented the notifications popup to base my work on him work. What I want to achieve is very similar to a tooltip but fixed on the bottom-right corner of the coinlist control and a bit bigger.