protected void btnDelete_Click(object sender, EventArgs e)
{
sessionId = Convert.ToInt32(Session["sessionId"]);
Collection <AttendanceCL> attendanceCL = new Collection <AttendanceCL>();
foreach (GridViewRow item in grdStudent.Rows)
{
int studentId = Convert.ToInt32(grdStudent.DataKeys[item.RowIndex].Value.ToString());
int attendanceId = attendanceBLL.viewAttendanceByStudentIdandDate(studentId, Convert.ToDateTime(txtDate.Text)).id;
StudentCL studentCL = studentBLL.viewStudentById(studentId, sessionId);
DropDownList ddlStudentLeaveType = item.FindControl("ddlGrdStudentLeaveType") as DropDownList;
if (Convert.ToInt32(ddlStudentLeaveType.SelectedValue) != -1)
{
attendanceCL.Add(new AttendanceCL()
{
classId = studentCL.classId,
date = Convert.ToDateTime(txtDate.Text),
dateCreated = DateTime.Now,
dateModified = DateTime.Now,
isDeleted = false,
studentId = studentId,
studentLeaveType = ddlStudentLeaveType.SelectedItem.ToString(),
studentLeaveTypeId = Convert.ToInt32(ddlStudentLeaveType.SelectedValue),
id = attendanceId,
});
}
}
int attendanceUpdated = attendanceBLL.deleteAttendance(attendanceCL);
lblUpdate.Text = attendanceUpdated + " Entries have been deleted. The page will refresh in 5 seconds";
Response.AppendHeader("Refresh", "5;url=ManageAttendance.aspx");
}