Initialize a collection within an object?
Tag : chash , By : Robert M
Date : March 29 2020, 07:55 AM
To fix this issue You can also use the "Lazy initailizer" pattern where the collection is not initialized until (and unless) someone accesses the property getter for it... This avoids the overhead of creating it in those cases where the parent object is instantiated for some other purpose that does not require the collection... public class Division
{
private int divId;
public int DivisionId { get; set; }
private Collection<Employee> emps;
public Collection<Employee> Employees
{ get {return emps?? (emps = new Collection<Employee>(DivisionId));}}
}
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NHibernate collection mapping throws 'could not load or initialize object or collection'
Date : March 29 2020, 07:55 AM
should help you out It turned out that the mapping itself was correct. The problem occured in the Constructor of 1 of the objects... I had a default parameterless constructor which was an overload to another constructor. public B() : this(null) { }
public B(A c)
{
A= c;
}
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In C#, how do I initialize an Object with key/value from an Collection
Tag : chash , By : user119985
Date : March 29 2020, 07:55 AM
This might help you I am too lazy to type out all the properties of my object, so instead of this: , Yes, you'll need to use System.Reflection to get the job done: for (int i = 1; i < 6; i++)
{
PropertyInfo prop = myObj.GetType().GetProperty(string.Format("property{0}", i);
if (prop == null) { continue; }
prop.SetValue(myObj, collection[prop.Name], null);
}
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Initialize a XAML object's collection
Date : March 29 2020, 07:55 AM
it should still fix some issue The cause was that the property (generated by OpenAccess ORM) did not have a setter.
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Initialize get-only collection in object initializer from existing collection
Date : March 29 2020, 07:55 AM
With these it helps No. You can't assign this read-only property from a collection initializer. It is read-only after all.
TheList = { "A", "B" } works since it calls Add on TheList (once for each item added), it doesn't create and assign a new instance, which it is not allowed to.
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