public static bool AddText(Infor tx)
{
using (var _context = new DBMindMapEntities())
{
try
{
_context.Infors.AddOrUpdate(tx);
_context.SaveChanges();
return(true);
}
catch (DbEntityValidationException e)
{
StringBuilder sb = new StringBuilder();
foreach (var eve in e.EntityValidationErrors)
{
sb.AppendLine(string.Format("Entity of type \"{0}\" in state \"{1}\" has the following validation errors:",
eve.Entry.Entity.GetType().Name,
eve.Entry.State));
foreach (var ve in eve.ValidationErrors)
{
sb.AppendLine(string.Format("- Property: \"{0}\", Error: \"{1}\"",
ve.PropertyName,
ve.ErrorMessage));
}
}
throw new DbEntityValidationException(sb.ToString(), e);
}
}
}
public static bool AddShape(Shape sp)
{
using (var _context = new DBMindMapEntities())
{
try
{
_context.Shapes.AddOrUpdate(sp);
_context.SaveChanges();
return(true);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return(false);
}
}
}
public static bool AddProject(ProjectShape project)
{
using (var _context = new DBMindMapEntities())
{
try
{
//MessageBox.Show("Successful!!");
_context.ProjectShapes.AddOrUpdate(project);
_context.SaveChanges();
return(true);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return(false);
}
}
}
public static bool DeleteProject(int id)
{
using (var _context = new DBMindMapEntities())
{
try
{
var lstidShape = (from t in _context.Shapes
where t.IDPro == id
select t.ID).ToList();
foreach (var x in lstidShape)
{
var infor = (from z in _context.Infors
where z.ID == x
select z).SingleOrDefault();
if (infor != null)
{
_context.Infors.Remove(infor);
}
}
foreach (var x in lstidShape)
{
var sh = (from s in _context.Shapes
where s.ID == x
select s).SingleOrDefault();
_context.Shapes.Remove(sh);
}
var pr = (from q in _context.ProjectShapes
where q.IDPro == id
select q).SingleOrDefault();
_context.ProjectShapes.Remove(pr);
_context.SaveChanges();
return(false);
} catch (Exception e)
{
MessageBox.Show(e.Message);
return(false);
}
}
}