选中TextBox控件，在属性窗格中找到(ApplicationSettings)，然后设置它。

绑定配置文件

 

 

 

private Settings settings = new Settings();        private void MainForm_Load(object sender, EventArgs e)        {            this.txtTargetInitialCatalog.Text = settings.sadbname;        }        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)        {            settings.sadbname = this.txtTargetInitialCatalog.Text;            settings.Save();        }