How to automatically select a select item in React

Question

I’m developing a sales record using React and Node. I have an "Edit" button where I call a function that receives an already registered sale and fills the fields for editing, the fields "Sold Hours" and "Sold Value" is already being filled. The select "Project" is not selected according to the sales project because it comes from an array of its own because in select it should contain all the projects in the projects table.

Summarizing I am not using any form library and would like to select an item from select by clicking on "Edit" button. If I’m doing something wrong tell me because I’m new with React. Thank you.

Answer 1

You are not adding the "value" property in select.

value={projectId)

Answer 2

https://pt-br.reactjs.org/docs/forms.html#the-select-tag

<select value={this.state.value} onChange={this.handleChange}>