Setting parameter properties
Table 2-4 lists parameter properties and provides a description of each property.
Table 2-4  
Yes, in Prompt editor
Visibility of the value that the user provides for this parameter. To conceal the value, set to True. To display the value, set to False. This parameter property applies only to parameters with the varchar data type and the text box display type.
Yes, on Parameters
Yes, in Prompt editor
Parameter’s default value. If a parameter does not have a default value, and the Required property is set to False, the parameter takes one of the following values if the user does not provide a value:
Yes, in Prompt editor
Control type for this parameter. The options are text box, read-only drop-down list, editable drop-down list, or radio buttons.
Yes, in Prompt editor
Visibility of the parameter to the user. To hide this parameter, set to True. To display the parameter, set to False.
Horizontal Alignment
Yes, on Parameters
Setting for parameters that are in stored procedures and ODA data source queries to specify the input or output type of the parameter. The options are Input, Output, InputAndOutput, or ReturnValue. ReturnValue is used only for stored procedures and is equivalent to Output.
Yes, in Prompt editor
Indicator of whether the parameter is required. To require a value for this parameter, set to True. Otherwise, set to False.
The size of the parameter if the parameter data type is varchar. Otherwise, not used. Must be set if size is greater than 1300.

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