如何在组合框类中设置所选项？

Question

I have populated a combobox with list class.

cboParentMenu.DataSource = listMenu;
cboParentMenu.DisplayMember = "caption";

This is the class variables.

public string caption { get; set; }
public string caption_style { get; set; }
public string cat_id { get; set; }
public int id_menu { get; set; }

Now, how do I set the selected item using the field id_menu? I'm thinking something like this one.

cboParentMenu.SelectedItem.id_menu = 123;

Answer 1

You can do

cboParentMenu.SelectedItem = listMenu.FirstOrDefault(x => x.id_menu == 123);

Make sure you import System.Linq .

Answer 2

尝试这个：

cboParentMenu.SelectedValue = listMenu.Find(i => i.id_menu == 123);