topic Re: Xdata maximum length in .NET Forum

Xdata maximum length

Ahmadi_rad — Mon, 26 Nov 2018 10:06:03 GMT

Hello

Trying to customize autocad based on Xdata, found that autocad has a maximum allowable length of 256 bytes. How to overcome this problem?

Re: Xdata maximum length

Alfred.NESWADBA — Mon, 26 Nov 2018 10:14:09 GMT

Hi,

using <DbObject>.ExtensionDictionary instead of XData would be a chance.

- alfred -

Re: Xdata maximum length

Ahmadi_rad — Mon, 26 Nov 2018 16:22:44 GMT

Thanks a lot

Will try it and come back soon

Re: Xdata maximum length

Alexander.Rivilis — Tue, 27 Nov 2018 06:44:47 GMT

@Ahmadi_rad wrote:

Hello

Trying to customize autocad based on Xdata, found that autocad has a maximum allowable length of 256 bytes. How to overcome this problem?

256 - is a maximum length of one string, but you can use few strings such as:

(1000 . "First line")
(1000 . "Second line")
(1000 . "Third line)

But maximum total length of XData of all applications in one object/entity is 16K bytes.

Re: Xdata maximum length

dgorsman — Tue, 27 Nov 2018 15:40:12 GMT

If you're running into that kind of limitation, it's a good idea to review what you are doing. Perhaps it would be better to do other things, like push pointers which can be extracted and used as a lookup key in an external system.

Re: Xdata maximum length

Ahmadi_rad — Tue, 27 Nov 2018 17:09:53 GMT

Hello and thanks for the response. I'm serializing some small c# classes and adding them to drawing entities. breaking the serialization string to 256byte strings may not be the easiest, but good to know.

By the way thanks

Re: Xdata maximum length

Ahmadi_rad — Tue, 11 Dec 2018 10:45:34 GMT

I'm not a professional programmer, It takes me time to find some time in between my jobs and modify my macros. Last night I finished this solution and it worked. Thanks.