How to update view model after clicking Save button(Knockout valueUpdate)

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ASP.NET

Knockout.js

The following line of code is from my pop up partial view.

<input type="text" id="SolutionName" class="form-control" placeholder="" size="12" data-bind="value:name, valueUpdate:'afterSave' "/>

I want my view model to be updated after I clicked save button.
currently I'm seeing the changes on my other view as I type.here is my code from my other view

<a href="#" data-bind="click: function (solution) { app.home().solution().clickSolutionName(solution); }, text: name></a>

Thank you.