protected void GrdCourse_OnSorting(object sender, GridViewSortEventArgs e)
{
//Sorting GridView based on column user selects
_courseTable.DefaultView.Sort = e.SortExpression;
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
//Pulling all data from course table and putting it in a DataTable
_courseTable = _courseDao.PullData();
if (!IsPostBack)
{
//Setting GridView data based off of DataTable
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
}
protected void BtnResetFilter_OnClick(object sender, EventArgs e)
{
//Resetting the GridView to its default view
_courseTable = _courseDao.PullData();
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
//Resetting filter boxes
TxtFilterDate.Text = "";
TxtFilterFee.Text = "";
TxtFilterSubject.Text = "";
//Calling method so user cannot register twice for the same course
ValidateRegistrations();
}
protected void BtnFilter_OnClick(object sender, EventArgs e)
{
//Declaring variables needed
var subject = TxtFilterSubject.Text;
var date = TxtFilterDate.Text;
var fee = TxtFilterFee.Text;
//Filtering the GridView based on the combination of TextBoxes that were typed into
if (!subject.Equals("") && date.Equals("") && fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"Subject like '%{subject}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else if (subject.Equals("") && !date.Equals("") && fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"CONVERT([StartDate], System.String) like '%{date}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else if (subject.Equals("") && date.Equals("") && !fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"CONVERT([Fee], System.String) like '%{fee}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else if (!subject.Equals("") && !date.Equals("") && fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"CONVERT([StartDate], System.String) like '%{date}%' and Subject like '%{subject}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else if (!subject.Equals("") && date.Equals("") && !fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"CONVERT([Fee], System.String) like '%{fee}%' and Subject like '%{subject}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else if (subject.Equals("") && !date.Equals("") && !fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"CONVERT([StartDate], System.String) like '%{date}%' and CONVERT([Fee], System.String) like '%{fee}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else if (!subject.Equals("") && !date.Equals("") && !fee.Equals(""))
{
_courseTable.DefaultView.RowFilter = $"CONVERT([StartDate], System.String) like '%{date}%' and CONVERT([Fee], System.String) like '%{fee}%' and Subject like '%{subject}%'";
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
else
{
GrdCourse.DataSource = _courseTable;
GrdCourse.DataBind();
ValidateRegistrations();
}
}