Iterate through object properties and update if condition is met











up vote
0
down vote

favorite












Currently I have a list, and I iterate through it, and If a condition is met I clear the data (see foreach please).



Current code but not really what I want, I want to use strongly typed



public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }

public ViewCommonItemVM()
{
Data = new List<string>();
}
}


List<ViewCommonItemVM> commons = new List<ViewCommonItemVM>();

commons.Add( new ViewCommonItemVM { Name = "Projects", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Companies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Schools", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Hobbies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Locations", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Interests", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Stuff", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Things", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Somelist", Data = someListHere });

foreach (var common in commons.Where(c => c.Data.Count != 0))
{
count++;
if (count > 4 && common.Data.Count != 0)
common.Data.Clear();
}


But I want to benefit from the stronly typed, so



Want to do



Object



public class ViewCommonVm
{
public ViewCommonItemVM Projects {get;set;}
public ViewCommonItemVM Companies {get;set;}
public ViewCommonItemVM Schools {get;set;}
public ViewCommonItemVM Hobbies {get;set;}
public ViewCommonItemVM Locations {get;set;}
public ViewCommonItemVM Interests {get;set;}
public ViewCommonItemVM Stuff {get;set;}
public ViewCommonItemVM Things {get;set;}
public ViewCommonItemVM Somelist {get;set;}
}

public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }
}


// Here it should iterated trough the object, and after
// 4 lenght properties != 0, clear the property list


How can I achieve this?










share|improve this question
























  • Do you want to remove property from object or do you want to remove all items from list if condition is met? If it's second one, you can't remove items from list when iterating it, so what you can do is something like this: var count=0; foreach (var common in commons.Where(c => c.Data.Count != 0)) { count++; } if (count > 4 && common.Data.Count != 0) commons.Clear();
    – Kadaj
    Jan 16 '17 at 10:34












  • @Kadaj, I don't want to use list
    – Gerald Hughes
    Jan 16 '17 at 10:35






  • 1




    [Type.GetProperties][1] will list each of the properties of a given type. Then use [PropertyInfo.GetValue][2] to check the values. [1]: msdn.microsoft.com/en-us/library/system.type.getproperties.aspx [2]: msdn.microsoft.com/en-us/library/b05d59ty.aspx
    – Kadaj
    Jan 16 '17 at 10:42






  • 1




    If you are going to do this(Reflection) only for this class then it is of no use and it'll add performance overhead. If you planned to use generics or interfaces or abstarcts and the type you doesn't know in runtime then it'll be great to use. Unless otherwise as I said do not use reflection for an object, for which you know the type at runtime.
    – Karthik AMR
    Jan 16 '17 at 11:08















up vote
0
down vote

favorite












Currently I have a list, and I iterate through it, and If a condition is met I clear the data (see foreach please).



Current code but not really what I want, I want to use strongly typed



public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }

public ViewCommonItemVM()
{
Data = new List<string>();
}
}


List<ViewCommonItemVM> commons = new List<ViewCommonItemVM>();

commons.Add( new ViewCommonItemVM { Name = "Projects", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Companies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Schools", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Hobbies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Locations", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Interests", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Stuff", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Things", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Somelist", Data = someListHere });

foreach (var common in commons.Where(c => c.Data.Count != 0))
{
count++;
if (count > 4 && common.Data.Count != 0)
common.Data.Clear();
}


But I want to benefit from the stronly typed, so



Want to do



Object



public class ViewCommonVm
{
public ViewCommonItemVM Projects {get;set;}
public ViewCommonItemVM Companies {get;set;}
public ViewCommonItemVM Schools {get;set;}
public ViewCommonItemVM Hobbies {get;set;}
public ViewCommonItemVM Locations {get;set;}
public ViewCommonItemVM Interests {get;set;}
public ViewCommonItemVM Stuff {get;set;}
public ViewCommonItemVM Things {get;set;}
public ViewCommonItemVM Somelist {get;set;}
}

public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }
}


// Here it should iterated trough the object, and after
// 4 lenght properties != 0, clear the property list


How can I achieve this?










share|improve this question
























  • Do you want to remove property from object or do you want to remove all items from list if condition is met? If it's second one, you can't remove items from list when iterating it, so what you can do is something like this: var count=0; foreach (var common in commons.Where(c => c.Data.Count != 0)) { count++; } if (count > 4 && common.Data.Count != 0) commons.Clear();
    – Kadaj
    Jan 16 '17 at 10:34












  • @Kadaj, I don't want to use list
    – Gerald Hughes
    Jan 16 '17 at 10:35






  • 1




    [Type.GetProperties][1] will list each of the properties of a given type. Then use [PropertyInfo.GetValue][2] to check the values. [1]: msdn.microsoft.com/en-us/library/system.type.getproperties.aspx [2]: msdn.microsoft.com/en-us/library/b05d59ty.aspx
    – Kadaj
    Jan 16 '17 at 10:42






  • 1




    If you are going to do this(Reflection) only for this class then it is of no use and it'll add performance overhead. If you planned to use generics or interfaces or abstarcts and the type you doesn't know in runtime then it'll be great to use. Unless otherwise as I said do not use reflection for an object, for which you know the type at runtime.
    – Karthik AMR
    Jan 16 '17 at 11:08













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Currently I have a list, and I iterate through it, and If a condition is met I clear the data (see foreach please).



Current code but not really what I want, I want to use strongly typed



public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }

public ViewCommonItemVM()
{
Data = new List<string>();
}
}


List<ViewCommonItemVM> commons = new List<ViewCommonItemVM>();

commons.Add( new ViewCommonItemVM { Name = "Projects", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Companies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Schools", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Hobbies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Locations", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Interests", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Stuff", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Things", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Somelist", Data = someListHere });

foreach (var common in commons.Where(c => c.Data.Count != 0))
{
count++;
if (count > 4 && common.Data.Count != 0)
common.Data.Clear();
}


But I want to benefit from the stronly typed, so



Want to do



Object



public class ViewCommonVm
{
public ViewCommonItemVM Projects {get;set;}
public ViewCommonItemVM Companies {get;set;}
public ViewCommonItemVM Schools {get;set;}
public ViewCommonItemVM Hobbies {get;set;}
public ViewCommonItemVM Locations {get;set;}
public ViewCommonItemVM Interests {get;set;}
public ViewCommonItemVM Stuff {get;set;}
public ViewCommonItemVM Things {get;set;}
public ViewCommonItemVM Somelist {get;set;}
}

public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }
}


// Here it should iterated trough the object, and after
// 4 lenght properties != 0, clear the property list


How can I achieve this?










share|improve this question















Currently I have a list, and I iterate through it, and If a condition is met I clear the data (see foreach please).



Current code but not really what I want, I want to use strongly typed



public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }

public ViewCommonItemVM()
{
Data = new List<string>();
}
}


List<ViewCommonItemVM> commons = new List<ViewCommonItemVM>();

commons.Add( new ViewCommonItemVM { Name = "Projects", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Companies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Schools", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Hobbies", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Locations", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Interests", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Stuff", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Things", Data = someListHere });
commons.Add( new ViewCommonItemVM { Name = "Somelist", Data = someListHere });

foreach (var common in commons.Where(c => c.Data.Count != 0))
{
count++;
if (count > 4 && common.Data.Count != 0)
common.Data.Clear();
}


But I want to benefit from the stronly typed, so



Want to do



Object



public class ViewCommonVm
{
public ViewCommonItemVM Projects {get;set;}
public ViewCommonItemVM Companies {get;set;}
public ViewCommonItemVM Schools {get;set;}
public ViewCommonItemVM Hobbies {get;set;}
public ViewCommonItemVM Locations {get;set;}
public ViewCommonItemVM Interests {get;set;}
public ViewCommonItemVM Stuff {get;set;}
public ViewCommonItemVM Things {get;set;}
public ViewCommonItemVM Somelist {get;set;}
}

public class ViewCommonItemVM
{
public string Name { get; set; }
public List<string> Data { get; set; }
public string Bullet { get; set; }
}


// Here it should iterated trough the object, and after
// 4 lenght properties != 0, clear the property list


How can I achieve this?







c# .net






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 12 at 5:52









Cœur

17.3k9102142




17.3k9102142










asked Jan 16 '17 at 10:16









Gerald Hughes

1,81753476




1,81753476












  • Do you want to remove property from object or do you want to remove all items from list if condition is met? If it's second one, you can't remove items from list when iterating it, so what you can do is something like this: var count=0; foreach (var common in commons.Where(c => c.Data.Count != 0)) { count++; } if (count > 4 && common.Data.Count != 0) commons.Clear();
    – Kadaj
    Jan 16 '17 at 10:34












  • @Kadaj, I don't want to use list
    – Gerald Hughes
    Jan 16 '17 at 10:35






  • 1




    [Type.GetProperties][1] will list each of the properties of a given type. Then use [PropertyInfo.GetValue][2] to check the values. [1]: msdn.microsoft.com/en-us/library/system.type.getproperties.aspx [2]: msdn.microsoft.com/en-us/library/b05d59ty.aspx
    – Kadaj
    Jan 16 '17 at 10:42






  • 1




    If you are going to do this(Reflection) only for this class then it is of no use and it'll add performance overhead. If you planned to use generics or interfaces or abstarcts and the type you doesn't know in runtime then it'll be great to use. Unless otherwise as I said do not use reflection for an object, for which you know the type at runtime.
    – Karthik AMR
    Jan 16 '17 at 11:08


















  • Do you want to remove property from object or do you want to remove all items from list if condition is met? If it's second one, you can't remove items from list when iterating it, so what you can do is something like this: var count=0; foreach (var common in commons.Where(c => c.Data.Count != 0)) { count++; } if (count > 4 && common.Data.Count != 0) commons.Clear();
    – Kadaj
    Jan 16 '17 at 10:34












  • @Kadaj, I don't want to use list
    – Gerald Hughes
    Jan 16 '17 at 10:35






  • 1




    [Type.GetProperties][1] will list each of the properties of a given type. Then use [PropertyInfo.GetValue][2] to check the values. [1]: msdn.microsoft.com/en-us/library/system.type.getproperties.aspx [2]: msdn.microsoft.com/en-us/library/b05d59ty.aspx
    – Kadaj
    Jan 16 '17 at 10:42






  • 1




    If you are going to do this(Reflection) only for this class then it is of no use and it'll add performance overhead. If you planned to use generics or interfaces or abstarcts and the type you doesn't know in runtime then it'll be great to use. Unless otherwise as I said do not use reflection for an object, for which you know the type at runtime.
    – Karthik AMR
    Jan 16 '17 at 11:08
















Do you want to remove property from object or do you want to remove all items from list if condition is met? If it's second one, you can't remove items from list when iterating it, so what you can do is something like this: var count=0; foreach (var common in commons.Where(c => c.Data.Count != 0)) { count++; } if (count > 4 && common.Data.Count != 0) commons.Clear();
– Kadaj
Jan 16 '17 at 10:34






Do you want to remove property from object or do you want to remove all items from list if condition is met? If it's second one, you can't remove items from list when iterating it, so what you can do is something like this: var count=0; foreach (var common in commons.Where(c => c.Data.Count != 0)) { count++; } if (count > 4 && common.Data.Count != 0) commons.Clear();
– Kadaj
Jan 16 '17 at 10:34














@Kadaj, I don't want to use list
– Gerald Hughes
Jan 16 '17 at 10:35




@Kadaj, I don't want to use list
– Gerald Hughes
Jan 16 '17 at 10:35




1




1




[Type.GetProperties][1] will list each of the properties of a given type. Then use [PropertyInfo.GetValue][2] to check the values. [1]: msdn.microsoft.com/en-us/library/system.type.getproperties.aspx [2]: msdn.microsoft.com/en-us/library/b05d59ty.aspx
– Kadaj
Jan 16 '17 at 10:42




[Type.GetProperties][1] will list each of the properties of a given type. Then use [PropertyInfo.GetValue][2] to check the values. [1]: msdn.microsoft.com/en-us/library/system.type.getproperties.aspx [2]: msdn.microsoft.com/en-us/library/b05d59ty.aspx
– Kadaj
Jan 16 '17 at 10:42




1




1




If you are going to do this(Reflection) only for this class then it is of no use and it'll add performance overhead. If you planned to use generics or interfaces or abstarcts and the type you doesn't know in runtime then it'll be great to use. Unless otherwise as I said do not use reflection for an object, for which you know the type at runtime.
– Karthik AMR
Jan 16 '17 at 11:08




If you are going to do this(Reflection) only for this class then it is of no use and it'll add performance overhead. If you planned to use generics or interfaces or abstarcts and the type you doesn't know in runtime then it'll be great to use. Unless otherwise as I said do not use reflection for an object, for which you know the type at runtime.
– Karthik AMR
Jan 16 '17 at 11:08












2 Answers
2






active

oldest

votes

















up vote
0
down vote













Are you able to use linq to solve this problem?



Something like this may work



commons.Where(x => x.Data.Any()).Skip(4).ToList().ForEach(x => x.Data = new List<string>());





share|improve this answer




























    up vote
    0
    down vote













    Must use reflection:



                void MyClear()
    {
    int count = 0;
    foreach (System.Reflection.PropertyInfo item in typeof(ViewCommonVm).GetProperties())
    {
    ViewCommonItemVM common = (ViewCommonItemVM)item.GetValue(this);
    if (common.Data.Count() != 0)
    {
    count++;
    if (count > 4 && common.Data.Count != 0)
    common.Data.Clear();
    }
    }
    }


    A bit slower than the original. If you have a property which is not ViewCommonItemVM, change the code to check whether item.GetValue(this) results proper type.






    share|improve this answer





















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      2 Answers
      2






      active

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      2 Answers
      2






      active

      oldest

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      active

      oldest

      votes






      active

      oldest

      votes








      up vote
      0
      down vote













      Are you able to use linq to solve this problem?



      Something like this may work



      commons.Where(x => x.Data.Any()).Skip(4).ToList().ForEach(x => x.Data = new List<string>());





      share|improve this answer

























        up vote
        0
        down vote













        Are you able to use linq to solve this problem?



        Something like this may work



        commons.Where(x => x.Data.Any()).Skip(4).ToList().ForEach(x => x.Data = new List<string>());





        share|improve this answer























          up vote
          0
          down vote










          up vote
          0
          down vote









          Are you able to use linq to solve this problem?



          Something like this may work



          commons.Where(x => x.Data.Any()).Skip(4).ToList().ForEach(x => x.Data = new List<string>());





          share|improve this answer












          Are you able to use linq to solve this problem?



          Something like this may work



          commons.Where(x => x.Data.Any()).Skip(4).ToList().ForEach(x => x.Data = new List<string>());






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jan 16 '17 at 10:43









          Bad Dub

          4951426




          4951426
























              up vote
              0
              down vote













              Must use reflection:



                          void MyClear()
              {
              int count = 0;
              foreach (System.Reflection.PropertyInfo item in typeof(ViewCommonVm).GetProperties())
              {
              ViewCommonItemVM common = (ViewCommonItemVM)item.GetValue(this);
              if (common.Data.Count() != 0)
              {
              count++;
              if (count > 4 && common.Data.Count != 0)
              common.Data.Clear();
              }
              }
              }


              A bit slower than the original. If you have a property which is not ViewCommonItemVM, change the code to check whether item.GetValue(this) results proper type.






              share|improve this answer

























                up vote
                0
                down vote













                Must use reflection:



                            void MyClear()
                {
                int count = 0;
                foreach (System.Reflection.PropertyInfo item in typeof(ViewCommonVm).GetProperties())
                {
                ViewCommonItemVM common = (ViewCommonItemVM)item.GetValue(this);
                if (common.Data.Count() != 0)
                {
                count++;
                if (count > 4 && common.Data.Count != 0)
                common.Data.Clear();
                }
                }
                }


                A bit slower than the original. If you have a property which is not ViewCommonItemVM, change the code to check whether item.GetValue(this) results proper type.






                share|improve this answer























                  up vote
                  0
                  down vote










                  up vote
                  0
                  down vote









                  Must use reflection:



                              void MyClear()
                  {
                  int count = 0;
                  foreach (System.Reflection.PropertyInfo item in typeof(ViewCommonVm).GetProperties())
                  {
                  ViewCommonItemVM common = (ViewCommonItemVM)item.GetValue(this);
                  if (common.Data.Count() != 0)
                  {
                  count++;
                  if (count > 4 && common.Data.Count != 0)
                  common.Data.Clear();
                  }
                  }
                  }


                  A bit slower than the original. If you have a property which is not ViewCommonItemVM, change the code to check whether item.GetValue(this) results proper type.






                  share|improve this answer












                  Must use reflection:



                              void MyClear()
                  {
                  int count = 0;
                  foreach (System.Reflection.PropertyInfo item in typeof(ViewCommonVm).GetProperties())
                  {
                  ViewCommonItemVM common = (ViewCommonItemVM)item.GetValue(this);
                  if (common.Data.Count() != 0)
                  {
                  count++;
                  if (count > 4 && common.Data.Count != 0)
                  common.Data.Clear();
                  }
                  }
                  }


                  A bit slower than the original. If you have a property which is not ViewCommonItemVM, change the code to check whether item.GetValue(this) results proper type.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 16 '17 at 10:59









                  Peter Krassoi

                  32319




                  32319






























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