Siebel eService Administration Guide for Siebel Open UI > Administering Siebel eService > Administering Navigation Links >

Constructing Expressions

When you click the select button for the Search Spec field in the Navigation Links view of the Administration - Application screen, the Expression Designer dialog box appears. In this dialog box, you can construct an expression to restrict the number of records in the record count for the location to which to link navigates.

The procedure in this topic shows you have to construct an expression to restrict the record count for the LOCATE OFFICE link to only records with a City field value of San Francisco, but you can use the Expression Designer to construct a variety of other expressions.

To construct an expression

1. Navigate to the Administration - Application screen, then the Navigation Links view.
2. In the Navigation Links list, query for the record with a Display Name field of LOCATE OFFICE.

   Make sure that the Max Record Count Displayed field for the record contains a non-null value and that the Business Component field for the record contains a value. Otherwise, no business component fields are available for selection in Step 4.

3. Click the select button in the Search Spec field for this record.
4. In the Expression Designer dialog box that appears, complete the following steps:
   1. Select Business Component Fields in the Categories list, All in the SubCategories list, and City in the Elements list.
   2. Click Add Element.

      [City] appears in the Expression field.

   3. Click the equal sign (=).

      [City]= appears in the Expression field.

   4. Type 'San Francisco' after the equal sign.

      [City]='San Francisco' appears in the Expression field.

   5. (Optional) Click Validate to verify that the syntax in the Expression field is correct.

      If the syntax contains an error, then the Errors field shows an error message. You must correct this error before you are allowed to save the expression. If the syntax does not contain an error, then the Errors field indicates that no error exists.

   6. Click Save.

      The expression that you constructed appears in the Search Spec field for the record.