expandoobject

I've noticed that the new ExpandoObject implements IDictionary<string,object> which has the requisite IEnumerable<KeyValuePair<string, object>> and Add(string, object) methods and so it should be possible to use the collection initialiser syntax to add properties to the expando object in the same way as you add items to a dictionary. Dictionary<string,object> dict = new Dictionary<string,object>() { { "Hello", "World" } }; dynamic obj = new ExpandoObject() { { "foo", "hello" }, { "bar", 42 }, { "baz", new object() } }; int value = obj.bar; But there doesn't seem to be a way of doing that.

Is there a way to add a property to an ExpandoObject with the same name as a string value? For example, if I have: string propName = "ProductNumber"; dynamic obj = new System.Dynamic.ExpandoObject(); I can create the property ProductNumber like: obj.ProductNumber = 123; But, can I create the property obj.ProductNumber based on the string propName ? So, if I don't know what the name of the property will be in advanced, I can create it based on this input. If this is not possible with ExpandoObject, any other areas of C# I should look into? ExpandoObject implements IDictionary<string, object> :

C# has the usefull Null Conditional Operator . Well explained in this answer too. I was wondering if it is possible to do a similar check like this when my object is a dynamic/expando object. Let me show you some code: Given this class hierarchy public class ClsLevel1 { public ClsLevel2 ClsLevel2 { get; set; } public ClsLevel1() { this.ClsLevel2 = new ClsLevel2(); // You can comment this line to test } } public class ClsLevel2 { public ClsLevel3 ClsLevel3 { get; set; } public ClsLevel2() { this.ClsLevel3 = new ClsLevel3(); } } public class ClsLevel3 { // No child public ClsLevel3() { } } If i

Can I cast ExpandoObject to anonymous type ? var anoObj = new { name = "testName", email = "testEmail" }; dynamic expandoObj = new System.Dynamic.ExpandoObject(); // Here I'm populating the expandoObj with same property names/types in anonymoustype(anoObj) // Now, how to convert this ExpandoObject to anonymoustype ? var newObj = (typeof(anoObj)expandoObj); // This doesn't work Added Later // This is my entity public class Customer { #region Public Properties [ColumnAttribute(Name = "IdColumn")] public string Id { get; set; } [ColumnAttribute(Name = "NameColumn")] public string Name { get; set;

For example, there's an object like the next one: public class Container { public object Data { get; set; } } And it's used this way: Container container = new Container { Data = new Dictionary<string, object> { { "Text", "Hello world" } } }; If I deserialize a JSON string obtained from serializing the above instance, the Data property, even if I provide the ExpandoObjectConverter , it's not deserialized as an ExpandoObject : Container container = JsonConvert.Deserialize<Container>(jsonText, new ExpandoObjectConverter()); How can I deserialize a class property assigned with an anonymous object

I want to use an ExpandoObject as the viewmodel for a Razor view of type ViewPage<dynamic> . I get an error when I do this ExpandoObject o = new ExpandoObject(); o.stuff = new { Foo = "bar" }; return View(o); what can I do to make this work? gram You can do it with the extension method mentioned in this question: Dynamic Anonymous type in Razor causes RuntimeBinderException So your controller code would look like: dynamic o = new ExpandoObject(); o.Stuff = new { Foo = "Bar" }.ToExpando(); return View(o); And then your view: @model dynamic @Model.Stuff.Bar Using the open source Dynamitey (in