Description
An attribute of a data source can have parameters that affect the result of computing its value. Each parameter has a name and values. The values will be set up by a user while he is configuring his report by choosing from list of possible. Use names of the parameters as keywords when you are typing an expression in Formula Language in the field @ Values with Parameters of an attribute settings document. At a setting of a report the parameters names in the expression will be replaced with their values chosen by a user.
To create a parameter for a data source attribute, do the next:
| • | Open the view Data Sources; |
| • | Open the attribute settings document, which you want to create parameter for; |
| • | In the section Parameters press Add. |
The created parameters are displayed both in the embedded view inside of attribute settings document and in the view Data Sources inside the category with names of data source and attribute.
Settings
| • | Field Name; |
| Type a name for the parameter that is understandable for a user. If you want to separate visible and programmatic name, use the format: | |
| visible name | programmatic name | |
| The visible name will be displayed for a user when he is setting up a report column and can be changed at any time. The programmatic name you should use in an expression in Formula Language in the field @ Value with Parameters of the attribute settings document and keep it stable. | |
| • | Field @ List of Possible Values; |
| Type an expression in Formula Language in order to compute list of possible values for the parameter. The list will be computed and available for a user while he is setting up a column in a report structure. You can compute visible and applicable parts of a value in the list. The output format of such value is: | |
| visible part | applicable part | |
| In an expression you can use the keywords KeyServer and KeyFile. |
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