public JsonResult PaginationResult(jsonstudent ss)
{
Result r = new Result();
int perpage = ss.perpage;
try
{
using (StudentsEntities se = new StudentsEntities())
{
var students = se.newstudents.Where(s => s.first_name.Contains(ss.first_name) && s.last_name.Contains(ss.last_name) && s.email.Contains(ss.email)
&& s.rollnumber.Contains(ss.rollnumber)
).ToList();
foreach (var item in ss.range)
{
students = students.Where(s => item.min <= (int)s[item.field] && (int)s[item.field] <= item.max).ToList();
}
foreach (var item in ss.selectables)
{
if(item.value != null) students = students.Where(s => item.value.Any(x => x == s[item.key].ToString())).ToList();
}
r.status = 1;
if ((ss.pageno - 1) * ss.perpage + ss.perpage > students.Count)
perpage = students.Count - (ss.pageno - 1) * ss.perpage;
r.data = students.GetRange((ss.pageno - 1) * ss.perpage, perpage);
if (ss.orderBy != null)
{
if (ss.orderType.ToLower() == "asc") r.data = students.GetRange((ss.pageno - 1) * ss.perpage, perpage).OrderBy(s => s[ss.orderBy]);
else r.data = students.GetRange((ss.pageno - 1) * ss.perpage, perpage).OrderByDescending(s => s[ss.orderBy]);
}
}
}
catch(Exception e)
{
r.data = "";
r.error = e.Message;
r.status = 0;
}
return Json(r);
}
public JsonResult SearchResult(jsonstudent ss)
{
Result r = new Result();
try
{
using (StudentsEntities se = new StudentsEntities())
{
var students = se.newstudents.Where(s => s.first_name.Contains(ss.first_name) && s.last_name.Contains(ss.last_name) && s.email.Contains(ss.email)
&& s.rollnumber.Contains(ss.rollnumber)
).ToList();
if (ss.israngeChanged)
{
foreach (var item in ss.range)
{
students = students.Where(s => item.min <= (int)s[item.field] && (int)s[item.field] <= item.max).ToList();
}
}
if (ss.isselectionChanged)
{
foreach (var item in ss.selectables)
{
if (item.value != null) students = students.Where(s => item.value.Any(x => x == s[item.key].ToString())).ToList();
}
}
outputResult o = new outputResult();
o.count = students.Count();
if (!ss.isselectionChanged)
{
foreach (var item in ss.selectables)
{
var tempdata = students.GroupBy(s => s[item.key]).Select(g => new{
key = g.Key,
count = g.Count()
}
).ToList().Distinct().ToList();
List<string[]> sampledata = new List<string[]>();
foreach (var temp in tempdata)
{
string[] tempArray = new string[2];
tempArray[0] = temp.key.ToString();
tempArray[1] = temp.count.ToString();
sampledata.Add(tempArray);
}
o.selectables.Add(item.key, sampledata);
}
}
foreach (var item in ss.range)
{
o.range.Add(new Range {
field = item.field,
min = (int)students.Min(s => s[item.field]),
max = (int)students.Max(s => s[item.field])
});
}
r.status = 1;
r.data = o;
}
}
catch (Exception e)
{
r.data = "";
r.error = e.Message;
r.status = 0;
}
return Json(r);
}
