Represents a strongly-typed, read-only collection of elements.
Represents a strongly-typed, read-only collection of elements.
Questions tagged [readonly-collection]
105 questions
0
votes
0 answers
CollectionViewSource Filter doesn't work with ReadOnlyCollection
I set up an ItemsControl with the items source set to a List. I then filter this ItemsControl using code like the following:
CollectionViewSource.GetDefaultView(myList).Filter = filterFunction;
This worked as expected. However, I have since…
BPC
- 3
- 3
0
votes
0 answers
jdbc oracle read only access error when query with multiple database links
i have 3 read only user on 3 oracle databases db1, db2,db3
then when i log onto pl/sql on db1 with it, i can perform the query
select 1 X from dual@db2 union select 2 X from dual@db3
then i tried the jdbc code
stmt=con.createStatement();
…
user999377
- 71
- 1
- 6
0
votes
1 answer
.Item property of readOnlycollection doesn't work
Im making a project in Python, using CPython3.4. I imported a dll which contains a ReadOnlyCollection. How can I get one item(at index) out of that list? I already tried to use .Item(index) and .Items but it says that:
"the object has no attribute…
Rowan Klein Gunnewiek
- 180
- 12
0
votes
1 answer
Extension Method to an item of a ReadOnlyCollection
I have a ReadOnlyCollection of a custom Interface type (IMyInterface). I want to add an extension method to the custom Interface type. However, my extension method is not showing up when I access an item inside the ReadOnlyCollection.
Here's my code…
Setafire
- 719
- 2
- 9
- 21
0
votes
2 answers
how to make accessor for Dictionary in a way that returned Dictionary cannot be changed C# / 2.0
I thought of solution below because the collection is very very small. But what if it was big?
private Dictionary _folderData = new Dictionary();
public Dictionary FolderData
{
get { return…
char m
- 7,840
- 14
- 68
- 117
0
votes
2 answers
Readonly property set code repeated in several constructor
I have a DataStructure class, which I want to be immutable.
Ordinarily, I'd just ensure that all my members are defined as readonly - Job Done.
But one of the members is a list (of ints), so I need to ensure that the List can't be modified; so I…
Brondahl
- 7,402
- 5
- 45
- 74
0
votes
1 answer
Does AutoMapper support ReadOnlyCollections?
I have tried various configurations, but cannot get it working. I am wondering if it is supported?
Paul Hiles
- 9,558
- 7
- 51
- 76
0
votes
1 answer
How to Serialize class derived from ReadOnlyCollection
When I try to serialize my own class that is derived from ReadOnlyCollection I get the error:
Type 'MyReadOnlyCollection`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' with…
openshac
- 4,966
- 5
- 46
- 77
0
votes
2 answers
BindingSource / BindingNavigator: How to prevent editing of bound DataSource?
I created a Data Source with VB.NET and Visual Studio 2005. I dragged the data source onto my dialog, and VS created the text boxes with the members of my linked Object, a System.Windows.Forms.BindingSource and a…
John
- 15,990
- 10
- 70
- 110
0
votes
2 answers
Encoding.GetString from an IReadOnlyList
Is there a way to get a string out of an IReadOnlyList, given a specific Encoding?
To be more precise, is there a way that doesn't copy the content of the collection before passing it to the Encoding object?
My main concern is performance,…
miniBill
- 1,743
- 17
- 41
0
votes
3 answers
update Readonly int array?
In Classical sense Readonly objects can only be set in the constrcutor and cannot be modified later on. Why do readonly int arrays behave any different.
PS:I am aware of Readonly collections, I am just curious to know why is this allowed ?
class…
Rauld
- 980
- 2
- 10
- 19
0
votes
1 answer
accessing a nearly-readonly-shared-list Asynchronously
public class PlanetInfo {
String planetName="";
int a;
int b;
int c;
PlanetInfo(planetname){
planetName = planetname;
if(planetName.equals("earth")){
a=1;
//....
}
else…
user2260732
- 1
- 2
0
votes
2 answers
Protect lookup collections and items from editing
I don´t want anything of these to be editable at all. For the Collections it seems crystal clear to use ReadOnlyCollection (though I don´t know if it´s a good way of always creating a new ReadOnlyCollection from the Collection (is it…
timmkrause
- 3,367
- 4
- 32
- 59
-1
votes
1 answer
Read-Only violation on List in C#?
Is there any violation of the read only keyword when its used in combination with List ??
For example
class Program
{
public List InputList;
public List DefaultList;
public readonly List ReadOnlyList;
public…
Dhivya Sadasivam
- 155
- 2
- 2
- 14
-1
votes
2 answers
Update a ReadOnlyCollection in a GridView
I am trying to modify some code written by another gentleman that generates flat files in various formats. The particular flat file in question is one that is positionally defined - Value X is at position 10, Value Y at 17, and value Z at 26,…
DJGray
- 504
- 8
- 26