Hello All,
I'm trying to write some attributes to a dataset and I'd like to use a
compound data type to hold the information. I'm using C# and the .NET
wrapper. I can read/write just regular string and variable length
string datasets and/or attributes with the wrapper, but I can't figure
out a good way to write with a compound datatype with a variable length
string.
I've tried the following:
1) Create a struct with the SequentialLayout attribute. Then, I created
a field for each member of the datatype. For the variable length types,
I use the IntPtr. In the constructor for the struct, I generate the
pointer to the string value.
2) I create a HDF5 compound datatype. I insert fields and for the
string types, I use a type derived from C_S1 and set it to variable
length. I use an offset of 4 for the length.
3) Then I created a dataset of the new datatype.
4) Next, I create a C# array of the struct values.
5) Finally, I tried writing the array of structs to the dataset.
However, in that last statement I am getting an exception. Is there a
transformation of the struct that I need to do before writing the
array? I can post the full code that I've tried if that is helpful in
diagnosing.
Thanks,
Jesse
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