/*
* Pre: id must be an integer or the empty string
* Post: The input parameters are used to search for existing students. Matching student
* information is displayed in the input gridview.
* @param gridView is the gridView in which the search results will be displayed
* @param id is the id being searched for - must be an integer or the empty string
* @param firstName is all or part of the first name being searched for
* @param lastName is all or part of the last name being searched for
* @param session is the name of the session variable storing the student search table data
* @districtId is the district in which to search for students, -1 indicates all districts
* @returns true if results were found and false otherwise
*/
private bool searchStudents(GridView gridView, string id, string firstName, string lastName, string session, int districtId)
{
bool result = true;
try
{
DataTable table = DbInterfaceStudent.GetStudentSearchResultsForDistrictPointEntry(id, firstName, lastName, districtId);
//If there are results in the table, display them. Otherwise clear current
//results and return false
if (table != null && table.Rows.Count > 0)
{
gridView.DataSource = table;
gridView.DataBind();
//save the data for quick re-binding upon paging
Session[session] = table;
}
else if (table != null && table.Rows.Count == 0)
{
clearGridView(gridView);
result = false;
}
else if (table == null)
{
showErrorMessage("Error: An error occurred during the search.");
}
}
catch (Exception e)
{
showErrorMessage("Error: An error occurred during the search.");
Utility.LogError("District Point Entry", "searchStudents", "gridView: " + gridView.ID + ", id: " + id +
", firstName: " + firstName + ", lastName: " + lastName + ", session: " + session,
"Message: " + e.Message + " Stack Trace: " + e.StackTrace, -1);
}
return(result);
}
