Getting a list of tables_Programming ArcGIS 10.1 with Python Cookbook-QQ阅读玄幻男生网

书名：Programming ArcGIS 10.1 with Python Cookbook
作者名：Eric Pimpler
本章字数：257字
更新时间：2025-02-28 02:28:01

Getting a list of tables

The arcpy.mapping module also has a ListTableViews() function that you can use to obtain a list of standalone tables that are contained within a map document. In this recipe, you will learn how to use the ListTableViews() function to create this list of tables.

Getting ready

In addition to providing the ability to generate a list of layers in a map document or data frame, the arcpy mapping module also provides a ListTableViews() function that generates a list of tables.

Note

ListTableViews() only works with map document files and the data frames contained within. Layer files do not have the capability of holding tables.

How to do it…

Follow these steps to learn how to get a list of standalone tables in a map document:

Open c:\ArcpyBook\Ch3\Crime_Ch3.mxd with ArcMap.
Click on the Python window button from the main ArcMap toolbar.
Import the arcpy.mapping module:
```
import arcpy.mapping as mapping
```
Reference the currently active document (Crime_Ch3.mxd), and assign the reference to a variable:
```
mxd = mapping.MapDocument("CURRENT")
```

Generate a list of tables in the map document:

for tableView in mapping.ListTableViews(mxd):
    print tableView.name

Run the script to see the following output:.
```
Crime2009Table
```

How it works…

The ListTableViews() function is very similar to the other list functions provided by arcpy.mapping. As was the case with ListLayers(), the ListTableViews() function accepts a reference to a map document (but not a layer file), along with an optional wildcard and data frame parameters. The output is a list of tables that can be iterated with a for loop.