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ExpandoObject

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Coding Seb edited this page May 30, 2019 · 4 revisions

From version 1.2.2 ExpressionEvaluator manage ExpandObject class. ExpandoObject are object that can dynamically create new properties when you assign a value to it. It is also a dictionnary of properties. In ExpressionEvaluator you can use it as a object or as a dictionnary.

Here some examples :

myVar = new ExpandoObject(); myVar.X = 23.5; myVar.Y = 34.8; return myVar.X + myVar.Y; // 58.3
myVar = new ExpandoObject(); myVar["Text"] = "Hello "; return myVar["Text"] + " Bob" ; // "Hello Bob"
myVar = new ExpandoObject(); myVar["Text"] = "Hello "; return myVar.Text + " Bob" ; // "Hello Bob"
myVar = new ExpandoObject(); myVar.Text = "Hello "; return myVar["Text"] + " Bob" ; // "Hello Bob"
obj = new ExpandoObject(); obj.Add = (x, y) => { text = "The result is : "; return text + (x+y).ToString(); }; return obj.Add(3, 4); // "The result is : 7"

Anonymous Objects

And from version 1.3.7 ExpandoObject can be created as anonymous objects:

obj = new { Text = "Hello", IntValue = 8, Add = (x, y) => { text = "The result is : "; return text + (x+y).ToString(); } };

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