.aspx文件中代码如下:
<asp:TextBox ID="txtUser_Id" runat="server" MaxLength="4" Width="120px" BorderColor="LightSlateGray" BorderWidth="1px"></asp:TextBox>
<asp:ImageButton ID="btnInsert" runat="server" ImageUrl="~/Images/Login.GIF" OnClick="btnInsert_Click" />
<asp:CheckBox ID="cbxRemeberUser" runat="server" Text="记住用户名" Font-Size="Small" ForeColor="gray"/>
.aspx.cs文件中代码如下:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
this.txtUser_Id.Focus();
if (!Object.Equals(Request.Cookies["UserID"], null))
{ //创建一个Cookie对象，实现记住用户名
HttpCookie readcookie = Request.Cookies["UserID"];
this.txtUser_Id.Text = readcookie.Value;
}
}
}
private void CreateCookie()
{
//创建一个Cookie对象
HttpCookie cookie = new HttpCookie("UserID");
//判断Checkbox控件是否被选中
if (this.cbxRemeberUser.Checked)
{
//将用户编号存储到创建的Cookie对象中
cookie.Value = this.txtUser_Id.Text;
}
//获取创建的Cookie对象的过期时间
cookie.Expires = DateTime.MaxValue;
//将创建的Cookie对象添加到内部Cookie集合中
Response.AppendCookie(cookie); }
protected void btnInsert_Click(object sender, ImageClickEventArgs e)
{
if (object.Equals(Request.Cookies["UserID"], null))
{
//调用自定义方法 CreateCookie() 存储用户名
CreateCookie();
}
else
{
CreateCookie();
}
}