//筛选学生签到记录
private void toolStripButton7_Click(object sender, EventArgs e)
{
string option = "";
if (toolStripComboBox4.Text.Trim() != "")
{
option = " AND Sign.classId = " + Convert.ToInt32(toolStripComboBox4.Text.Trim()) +
"AND ChooseCls.classId = " + Convert.ToInt32(toolStripComboBox4.Text.Trim());
DataTable dt = SignManager.DisplayDifferentSignUp(teacher.Id, option);
dt.Columns[0].ColumnName = "签到编号";
dt.Columns[1].ColumnName = "学生学号";
dt.Columns[2].ColumnName = "学生姓名";
dt.Columns[3].ColumnName = "IP地址";
dt.Columns[4].ColumnName = "签到时间";
dt.Columns[5].ColumnName = "签到状态";
dataGridView3.DataSource = dt;
}
else
{
RefreshClassTable();
}
}
