事件触发＆＃34; ENTER＆＃34;按键

Question

我设计了一个Window_Form，我希望在其中提供一个功能，以便每当用户按下＆＃34; Enter＆＃34; ComboBox中的按钮，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
    }
}  

它适用于wpf和C＃应用程序