PreventNulls

gistfile1.txt

 public abstract class AbstractViewModel<T>
    {
        public AbstractViewModel<T> PreventNulls()
        {
            // Verifica se alguma propriedade eh nula e insere um valor valido
            var properties = GetType().GetProperties();
            foreach (var property in  properties )
            {
                var value = property.GetValue(this, null);

                if (value == null)
                {
                    if (property.PropertyType == typeof (string))
                    {
                        property.SetValue(this, string.Empty);
                    }
                    else if (typeof (IList<ComboItemViewModel>).IsAssignableFrom(property.PropertyType))
                    {
                        //se for lista nula
                        property.SetValue(this, new List<ComboItemViewModel>());
                    }
                    else if (typeof (IList<ComboItemChildrenViewModel>).IsAssignableFrom(property.PropertyType))
                    {
                        //se for lista nula
                        property.SetValue(this, new List<ComboItemChildrenViewModel>());
                    }
                    else if (property.PropertyType == typeof (bool))
                    {
                        // se for boolean
                        property.SetValue(this, false);
                    }
                    else if (typeof (IList<string>).IsAssignableFrom(property.PropertyType))
                    {
                        property.SetValue(this, new List<string>() {""});
                    }
                }
                else if (property.PropertyType == typeof (string) && value.ToString().Contains('"'))
                {
                    property.SetValue(this,value.ToString().Replace('"',' '));
                }
                else if (typeof (IList<ComboItemViewModel>).IsAssignableFrom(property.PropertyType))
                {
                    var campaignsList = (IList<ComboItemViewModel>)value;
                    foreach (var comboItemViewModel in campaignsList.Where(comboItemViewModel => comboItemViewModel.Name.Contains('"')))
                    {
                        comboItemViewModel.Name = comboItemViewModel.Name.Replace('"', ' ');
                    }
                }
            }

            return this;
        }
    }