在“ENTER”键上按下事件触发器

Question

我设计了一个Window_Form，我希望这个功能可以让用户在ComboBox中按下“Enter”按钮时执行查询。

Answer 1

试试这个：

Private Sub Combobox_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Combobox.KeyDown 

     If e.KeyCode = Keys.Enter Then 

      MsgBox("Here you can execute query") 

     End If 

    End Sub 

Answer 2

private void txtShNumber_KeyDown(object sender, KeyEventArgs e) 
{ 
    if (e.Key == Key.Enter && txtShNumber.Text.Trim() != "") 
    { 
      /////your code 
    } 
} 

它会为WPF和C＃应用程序的工作