Validation Settings

You can write validation scripts to check individual settings. The validation scripts are run after a user enters settings but before the settings are saved.

You can use any of the following languages to write validation scripts:

• VBScript
• JScript
• C#
• VB.net

Use the validation tag to apply a validation script to a setting. Use method to define the validation method name. Use param to define a parameter value to pass to the method or paramval to pass a registry setting value to the method. The validation result is returned by the method’s return value. Use either dotnetscript to define a .net script (C# or VB.net), or script to define a script (VBScript or JScript) to do the validation.

The following segment from an administrative template file illustrates how to call a validation method:

- <validation>

    <method name="Validation.CheckUser" />

  - <dotnetscript language="C#">

    - <code>

      - <![CDATA[

public class Validation

                      {

                         public static string[] CheckUser(string value)

                         {

                             return Utility.CheckUnixNames(value, new  
                           char[] { }, "Unix user name");

                         }

                      }

    ]]>

  </code>

 </dotnetscript>

</validation>

You place the code to call the method within a CDATA tag. Likewise, place the validation code itself within a CDATA tag, as in the following example:

- <dotnetscript language="C#">

   - <code>

    - <!--

       Validation Utility

      -->

    - <![CDATA[

        using System;

        using System.Text;

        public class Utility

        {

          .

          .

          .

          /// <summary>

          /// Check for a list of Unix names separated by seps

          /// </summary>

          /// <param name="value">\</param>

          /// <param name="seps">\</param>

          /// <param name="displayText"></param>

          /// <returns></returns>

          public static string[] CheckUnixNames(string value, char[]  
          seps, string displayText)

          {

            .

            .

            .

          }

        }

]]>

  </code>

</dotnetscript>