智慧职教: 阅读下面的程序，按照注释中的要求编写代码。 代码一： public partial class FormTest01 : Form { public FormTest01() { InitializeComponent()； } private void FormTest01_Load(object sender, EventArgs e) { //窗体加载时btnSecond按钮在窗体上消失 _______________________________ } private void btnFirst_Click(object sender, EventArgs e) { //单击btnFirst按钮时btnSecond按钮显示，btnFirst按钮消失 _______________________________ } private void btnSecond_Click(object sender, EventArgs e) { //单击btnSecond按钮时btnSecond按钮消失，btnFirst按钮显示 _______________________________ } }
举一反三
- 双击一个名为btnCom的按钮，自动生成的鼠标点击事件处理方法为： A: private void btnCom_Click(object sender, EventArgs e){ } B: public void btnCom_Click(object sender, EventArgs e){ } C: private void btnCom(object sender, EventArgs e){ } D: public void btnCom(object sender, EventArgs e){ }
- public partial class MasterPage : System.Web.UI.MasterPage { protected void Page_Load(object sender, EventArgs e) { __________.Text = "欢迎您！"; } } public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { Label labelname = (Label)__________.__________("Label1"); __________.Text = "欢迎" + TextBox1.Text + "！"; } }
- .NET框架提供有专门的委托类EventHandler，原型如下： A: public delegate void EventHandler(object sender, EventArgs e); B: public delegate void EventHandler(EventArgs e, object sender); C: public event void EventDelegate(object sender, EventArgs e); D: public event void EventDelegate(EventArgs e, object sender);
- 在Web应用程序根目录下的admin目录中有一个页面first.aspx,单击页面中的Button按钮跳转到同一目录下的second.aspx页面,下列代码错误的是:____ A: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("./second.aspx");} B: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("~/admin/second.aspx");} C: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("/admin/second.aspx");} D: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("second.aspx");}
- 中国大学MOOC: 在ASP。NET中，有一个ASPX页面的部分代码如下，当用户单击Button1按钮后，下列说法正确的是：（）。public class CityBrower: System.Web.UI.Page{ protected System.Web.UI.WebControls.Button Button1; string name=SMXPT3.0”; private void Page_Load(object sender,SystemEventArgs e){ If(!this.IsPostBack) Name=SMXPT4.0”; Else Name=SMXPT5.0”;}Private void Button_Click(object sender, System.EventArgs e){ Response.Write(name);}}