All Questions
2,884
questions
0
votes
0
answers
22
views
check if given object implements certain generic interface; type argument(s) NOT known [duplicate]
I have some object. I want to check at runtime if it is an IReadOnlyCollection<T> of any T, i.e. I cannot specify that T in my check. So it should return true for e.g. IReadOnlyCollection<...
- 2,794
2
votes
1
answer
62
views
C# generic method detect if T is array and then index into the array
I'm trying to write a Dbg debug function that will print out some debug info about the given parameter and then return it. I would like arrays to be printed as the list of elements, and scalars to ...
- 809
0
votes
1
answer
50
views
Dynamically set the Property name to be the name of the Type(typeof(T).Name)
var appsettings = JsonConvert.DeserializeObject<AppSettings<PersonModel>>(configData);
class AppSettings<T>
{
[JsonProperty(PropertyName = typeof(T).Name)]
public T ...
- 15
0
votes
2
answers
93
views
Constrain return type to be subtype of this
I have the following interface:
internal interface ITyped<EnumType> where EnumType : struct, Enum
{
public EnumType Type { get; }
// !!! this method must always return a subtype* of the ...
- 2,794
0
votes
1
answer
71
views
How to convert type to generic type, whose actual type is known at the point of conversion?
I have a set of methods which simply return a stored 'object' as a different type each, like this:
bool GetAsBool();
string GetAsString();
int GetAsInt();
In the real scenario, there are currently 16 ...
- 3
0
votes
0
answers
18
views
C# How to flexibly represent mixed intermediate scalar/vector results in DSL expression evaluator
I want to evaluate expressions like:
LARGEST(A) + B
A is double[] {1,2,3,4,5}
B is double[] {2,3,4,5,6}
I'm using Irony and can create a suitable abstract syntax tree:
1. binary_add
...
- 633
0
votes
1
answer
88
views
Storing product attributes of different types in a product aggregate
I use the EAV (Entity-Attribute-Value) pattern in an inventory management system I'm developing.
It's very comparable to a typical webshop framework like Magento.
Attributes have a data type, like ...
- 1,174
1
vote
2
answers
115
views
Allow multiple types for one property when deserializing json using System.Text.Json
I am expecting that particular property in the incoming data would be either an array of integers or a string. What is the proper way to define this condition it in my model?
using System.Text.Json....
- 439
2
votes
0
answers
70
views
How to detect classes marked with file modifier in C#
In C# 11, the new file type modifier was introduced.
I was looking for a way to detect such non-public type using reflection, however, I have not find any "good" way to do so.
There is no Is…...
- 488
0
votes
2
answers
39
views
C# Generic Method passed as argument, Argument type 'bool' is not assignable to parameter type 'System.Func<bool>'
I am attempting to create a generic array iterator which goes iterates through a multidimensional array assigning each element with the result of a function.
When trying the following code I get the ...
0
votes
0
answers
52
views
C#: how to create a custom type that can be a Dictionary or a List of Dictionaries
I am trying to create a custom type. Variables which are this type may be either a Dictionary, or a list of Dictionaries
This is how I would create the type using python (using mypy)
CustomType = ...
- 2,070
0
votes
0
answers
20
views
store type as variable and use in list<T> c#? [duplicate]
I am trying to store a type as a variable so that I can make a List object with a few different possible types without hard coding them all.
My code basically looks like this:
using System;
using ...
- 1
0
votes
0
answers
23
views
Bound and Unbound types in C# [duplicate]
Bound and Unbound types in C#
The term unbound type refers to a non-generic type or an unbound generic type. The term bound type refers to a non-generic type or a constructed type.
What does an ...
0
votes
3
answers
103
views
Check if object of base class came from subclass [duplicate]
I have a base class and a bunch of subclasses of it.
I have an object of base class and I know that it was an instance of one of the subclasses before, but it was casted to the base class.
I want to ...
- 7,645
0
votes
1
answer
121
views
Convert string to Int in DataSet
Sorting does not work in dataGridView1 because when reading from XML the data is read in string format. (Instead of 13-4-3-3-2 I get 13-2-3-3-4)
DataXML = new DataSet();
FileStream fs = new ...
