Ben,
Please check the following article:
http://cutesoft.net/developer+guide/Building-your-own-Image-Name-Filter.htm
Building your own Image Name Filter
This section is for Advanced Developers. Knowledge of the Regular Expressions is a prerequisite.
Cute Editor has taken steps into image file name management. A new and innovative capability is to allow advanced developers to build the Image File Name Filter. Once a filter being set, only images whose names comply to the filter, will be displayed in the image dialog and is also allowed to be uploaded to the server. The other images are just being "filtered out".
To setup a filter, you need to be familiar with Regular Expression. Regular Expressions are advanced forms of wildcards and allow you to set fitlers precisely.
Cute Editor defines the following image name filter by default:
^[a-zA-Z0-9\._-]+$
But you can modify it to meet your own requirements using the following methods:
1: Edit security policy file.
The security policy file (default.config, admin.config and guest.config) can be found in the /CuteEditor/Configuration/Security folder. In security policy file you can find the filenamePattern element. By default, it contains the following value:
<security name="filenamePattern">^[a-zA-Z0-9\._-]+$</security>
You can modify the filenamePattern element to meet your own requirements.
For example:
<security name="filenamePattern">^[a-zA-Z0-9\._-]+$</security>
2: Programmatically define the image name filter
C# Example:
Editor1.Setting["security:filenamePattern"]= "^[a-zA-Z0-9\._-]+$";
VB Example:
Editor1.Setting("security:filenamePattern")= "^[a-zA-Z0-9\._-]+$"
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