如何在Spotfire中使用IronPython获取列的外部名称? [英] How can I get the externalname of a column using IronPython in Spotfire?

问题描述

当前，我需要根据特定条件来更改列的名称，但是要做到这一点，我想用它的ExternalName而不是它的名称来引用该列.

Currently I need to change the name of a column depending on specific criteria but to do that I'd like to refer to that column by its ExternalName rather than its name.

aColumn = Document.ActiveDataTableReference.Columns["I_id"].Name 

不幸的是，这不起作用.

unfortunately this doesn't work.

aColumn = Document.ActiveDataTableReference.Columns["I_id"].ExternalName 

推荐答案

您非常亲密！ ExternalName不是 DataColumn对象的属性. ，我想您已经弄清楚了为什么您的方法行不通.

you're very close! ExternalName isn't a property of the DataColumn object, which is, I suppose you've figured out, why your approach isn't working.

实际上，ExternalName是 DataColumnProperties.DefaultProperties类.您实际上会像访问自定义的 Column Property 一样访问它，如下所示:

in fact, ExternalName is an item represented by the DataColumnProperties.DefaultProperties class. you would actually access this as if it were a custom-defined Column Property like so:

col_ext_name = Document.ActiveDataTableReference.Columns["I_id"].Properties["ExternalName"]

print(col_ext_name)

>> index_id

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