Question

当前上下文中不存在名称"BaseClass"

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class admin_Subject : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Session["admin"] == null)
{
Response.Redirect("../Login.aspx");
}
if (!IsPostBack)
{
SqlConnection conn = BaseClass.DBCon();
此处的BaseClass

conn.Open();
SqlCommand cmd = new SqlCommand("select * from tb_Lesson", conn);
SqlDataReader sdr = cmd.ExecuteReader();
while (sdr.Read())
{
ListBox1.Items.Add(sdr["LessonName"].ToString());
}
}
}
protected void btnAdd_Click(object sender, EventArgs e)
{
if (txtKCName.Text == "")
{
MessageBox.Show("请输入课程名称");
return;
}
else
{
string systemTime = DateTime.Now.ToString();
string strsql = "insert into tb_Lesson(LessonName,LessonDataTime) values('" + txtKCName.Text.Trim() + "','" + systemTime + "')";
BaseClass.OperateData(strsql);
txtKCName.Text = "";
Response.Write("<script>alert('添加成功');location='Subject.aspx'</script>");
}
}
protected void btnDelete_Click(object sender, EventArgs e)
{
if (ListBox1.SelectedValue.ToString() == "")
{
MessageBox.Show("请选择删除项目后删除");
return;
}
else
{
string strsql = "delete from tb_Lesson where LessonName='" + ListBox1.SelectedItem.Text + "'";
BaseClass.OperateData(strsql);
Response.Write("<script>alert('删除成功');location='Subject.aspx'</script>");
}
}
}

Answer 1

哥们你发错地方了..