private void tsbAdd_Click(object sender, EventArgs e)
{
if (txtCourseName.Text == "")
{
MessageBox.Show("请输入科目名称！");
}
else
{
if (CourseBll.GetCourse(txtCourseName.Text))
{
try
{
CourseBll.CourseAdd(txtCourseName.Text);
dataGridView1.DataSource = CourseBll.CourseFillDs().Tables[0];
getcolumn();
MessageBox.Show("添加成功！");
}
catch (Exception ee)
{
MessageBox.Show("添加失败！" + ee);
throw;
}
}
else
{
MessageBox.Show("科目已存在！");
}
}
}
