5.7.6 Making an input item a mandatory field

When the specification of a command parameter requires that a certain option be specified, failure to enter that option can cause a problem, such as the occurrence of an error upon the execution of the command. This input item can help prevent an operational error resulting from missing input by mandating the entry of text.

Example: Sending the user-input value to standard output

Open the Action dialog box from the Item Design View, specify the information described in the following table in an item, and then register the item.

Table 5‒16: Information specified for the input item "Abbreviate"

No.	Specifics of where each piece of information is defined			Information to be specified
	Main window	Where to transition to	Location where the information is specified
1	Item Design View +--Action dialog box	Basic settings	Command	cpaecho
2			Parameter	${JDS:msg}
3			Execution type	Do not show the window
4		Input item settings +--Define input items dialog box	Variable name	msg
5			Label	Message to be output
6			Input type	Text box
7			Abbreviate	Select the check box.

The following figure shows what the dialog box looks like when the created item is to be used in a job.

Figure 5‒17: Item that has a mandatory input item

The string entered in the Message to be output text box is sent to standard output. If you attempt to register the item without specifying a string in this text box, the KNAO4004-E dialog box appears, and the registration attempt fails.

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