Questions tagged [propertyinfo]
237 questions
358
votes
12 answers
Setting a property by reflection with a string value
I'd like to set a property of an object through Reflection, with a value of type string.
So, for instance, suppose I have a Ship class, with a property of Latitude, which is a double.
Here's what I'd like to do:
Ship ship = new Ship();
string value…
David Hodgson
- 10,104
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340
votes
16 answers
Reflection - get attribute name and value on property
I have a class, lets call it Book with a property called Name. With that property, I have an attribute associated with it.
public class Book
{
[Author("AuthorName")]
public string Name
{
get; private set;
}
}
In my main…
user619891
56
votes
2 answers
Is there a way to set properties on struct instances using reflection?
I'm trying to write some code that sets a property on a struct (important that it's a property on a struct) and it's failing:
System.Drawing.Rectangle rectangle = new System.Drawing.Rectangle();
PropertyInfo propertyInfo =…
Victor Chelaru
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54
votes
7 answers
Get string name of property using reflection
There is a whole wealth of reflection examples out there that allow you to get either:
All properties in a class
A single property, provided you know the string name
Is there a way (using reflection, TypeDescriptor, or otherwise) to get the string…
Joel B
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47
votes
2 answers
PropertyInfo : is the property an indexer?
I have the following code :
PropertyInfo[] originalProperties = myType.GetProperties();
I want to exclude from originalProperties all the indexers (myVar["key"] appears as property named "Item").
What is the proper way ?
Exclude all properties…
JYL
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39
votes
5 answers
How do you get the Value of a property from PropertyInfo?
I've got an object that has a collection of properties. When I get the specific entity I can see the field I'm looking for (opportunityid) and that it's Value attribute is the Guid for this opportunity. This is the value I want, but it won't always…
sr28
- 4,728
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26
votes
6 answers
Finding the hosting PropertyInfo from the MethodInfo of getter/setter
I do some type analysis in runtime using Reflection. If I have a MethodInfo instance,
how can I figure out if this is a "real" method or is a getter/setter method of a property? And if it is a property, how can I find the its hosting PropertyInfo…
Mr. Lame
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25
votes
2 answers
Why is TargetInvocationException treated as uncaught by the IDE?
I have some code that is using reflection to pull property values from an object. In some cases the properties may throw exceptions, because they have null references, etc.
object result;
try
{
result = propertyInfo.GetValue(target,…
Jason Coyne
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22
votes
4 answers
How to set Vaues to the Nested Property using C# Reflection.?
I am trying to set a value to a Nested Property of Class dynamically using reflection. Could anyone help me to do this.
I am having a class Region like below.
public class Region
{
public int id;
public string name;
public Country…
Sravan
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- 4
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20
votes
2 answers
Why are PropertyInfo SetValue and GetValue so slow?
Why is the PropertyInfo methods for getting and setting a property so slow? If I build a delegate using Reflection.Emit, it is much faster.
Are they doing something important, so that the time they take can be justified? That is... am I missing…
Miguel Angelo
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19
votes
1 answer
Get DisplayAttribute attribute from PropertyInfo
class SomeModel
{
[Display(Name = "Quantity Required")]
public int Qty { get; set; }
[Display(Name = "Cost per Item")]
public int Cost { get; set; }
}
I'm trying to map the model into a list of { PropertyName, DisplayName } pairs,…
fearofawhackplanet
- 52,166
- 53
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17
votes
4 answers
How to tell if a PropertyInfo is of a particular enum type?
I have the following code:
public class DataReader where T : class
{
public T getEntityFromReader(IDataReader reader, IDictionary FieldMappings)
{
T entity = Activator.CreateInstance();
Type entityType =…
griegs
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17
votes
4 answers
Property set method not found in a derived type
As disgussed in .NET Reflection set private property one can set a property with a private setter. But when the property is defined in a base class, System.ArgumentException is thrown : "Property set method not found".
An example can be:
using…
tafa
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15
votes
2 answers
How do I determine if a property was overridden?
I am doing a project that where I need to register all the properties, because of the system being so huge it would require a lot of work to register all the properties that i want to be dependent for the purpose of Xaml.
The goal is to find all…
Benjamin
- 429
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14
votes
3 answers
Setting value in an array via reflection
Is there a way to set a single value in an array property via reflection in c#?
My property is defined like this:
double[] Thresholds { get; set; }
For "normal" properties I use this code to set it via reflection:
PropertyInfo pi =…
Boris
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