ArcGIS Desktop

HowTo: Increase the character length for a text field in ArcMap

【相关信息】
Article ID: 42783
Software:
ArcGIS - ArcEditor 10
ArcGIS - ArcInfo 10
ArcGIS - ArcView 10
ArcGIS for Desktop Advanced 10.1, 10.2, 10.2.1, 10.2.2
ArcGIS for Desktop Standard 10.1, 10.2, 10.2.1, 10.2.2
ArcGIS for Desktop Basic 10.1, 10.2, 10.2.1, 10.2.2
Platforms: N/A

【问题描述】
In some scenarios, users may want to modify the character length of an existing text field in an attribute table to include a longer name, such as a hyperlink. A hyperlink may not work in a field with a default length of 50 characters.

Users cannot increase the character length of an already existing text field. An example error message may appear when trying to edit a field value beyond the length allotted:

However, users can create a new text field with a length of 255 characters, and set the new field to mirror the properties of the original field. Instructions provided describe how to create a new text field in an attribute table to increase the character length allowed.

1 个回复

EsriSupport

【解决方案】

Add a new text type field in the attribute table. To do this, refer to the following ArcGIS Web Help topic: Adding fields
In the Add Field dialog box, after selecting the field type Text, input 255 in the Length box and click OK.
Click the Editor menu on the Editor toolbar and select Start Editing.
Right-click the new field and select Field Calculator
In the Field Calculator dialog box, double-click the required field name from the Fields list to enter the name into the expression box, and click OK.
Go to the Editor menu and select Save Edits.
Click the Editor menu and select Stop Editing.