C# Input text & Brep

Im trying to make a component that has an input that can take a list of both breps, and text. Then in the component it would sort through the inputs.

Currently I have an input set to List Access with the Type Hint of System.Object. It takes these inputs just fine, but then when I try to access the inputs, it gives me an error if I try to access the item which is text.

Im testing a list of

(0) Brep

(1) TestString

(2) TestString

the code looks something like this...

int i = 0;

while(i < MyList.Count)

{

Print(MyList[i].GetType().ToString());

i++;

}

If I replace "MyList[i]" with "MyList[0]" it works fine. But when I try to access the text, i get this error:

1. Object reference not set to an instance of an object. (line: 0)

Any advice?

Replies to This Discussion

Permalink Reply by Ryan Grande on October 17, 2016 at 9:06am

Ah! You are correct! Turns out the error was in a different part of the script. Really what Im looking to do is instead of Printing the type, I want to assigin it to sepperate lists of type string, and GeometryBase... so more like this...

List<string> myString = new List<string>();
List<GeometryBase> myGeom = new List<GeometryBase>();

int i = 0;

while(i < myList.Count)

{
if(myList[i].GetType() == typeof(string))
myString.Add(myList[i].ToString());
else if(myList[i].GetType() == typeof(Brep))
myGeom.Add(myList[i]);

else

Print("Cannot accept Objects of type " + myList[i].GetType().ToString());

i++;

}

I was able to get around the casting the string with the .ToString(). But have not found how to assign the brep to GeometryBase. In Theory I would add if statements for all geometry types I want to accept.

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