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For my persistence library I would like to create type dynamically.
Unfortunately I have a problem with generic types. The code below fails at runtime and I have no clue why:

C#
var tDict = Type.GetType("System.Collections.Generic.Dictionary`2[]");
var tDict2 = tDict.MakeGenericType(typeof(int), typeof(string));



The exception is:
InvalidOperationException:
Additional information: System.Collections.Generic.Dictionary`2[TKey,TValue][] is not a GenericTypeDefinition. MakeGenericType may only be called on a type for which Type.IsGenericTypeDefinition is true.
Posted

The following code makes the trick:


C#
private void test()
        {
            Type tDict = Type.GetType("System.Collections.Generic.Dictionary`2[System.Int32, System.String]").GetGenericTypeDefinition();

            var tDict3 = tDict.MakeGenericType(typeof(string), typeof(string));
            var tDict2 = tDict.MakeGenericType(typeof(int), typeof(string));

        }
 
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Comments
Super Lloyd 25-Nov-13 10:41am    
Hi, I solved it myself! ;)
Beside I have a type name parser and need to resolve each piece independently, to repair broken Type.GetType(), so I can't use the full type name as above!
Adam Zgagacz 25-Nov-13 12:42pm    
I see. good luck with the rest of your code.
Solved!
var tDict = Type.GetType("System.Collections.Generic.Dictionary`2");

works!! :)
 
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