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DriveWorks Pro 19
Form Messages

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Introduction

The form messages task provides the ability to create messages that can be used in controls to indicate when users have typed in values which aren't valid.

To Create a Form Message

  • Click the "Add" button on the command bar - a new form message is added to the list.
  • Either, type a rule into the list, or press return and click the "Build" button on the command bar to launch the rules builder.

To Build a Rule for a Form Message

  • Select the form message to edit in the list.
  • Click the "Build" button on the command bar to launch the rules builder.

To Delete a Form Message

  • Select the form message to delete in the list.
  • Click the "Delete" button on the command bar.

To Use a Form Message

  • Make a note of the number of the form message to use.
  • Open the form designer, and select the form containing the control that is going to use the form message.
  • Select the control, and find the "Error Result" property in the form designer.
  • Build a rule for the "Error Result" property which returns the message number if the control's value isn't correct.

For example, if you wanted to check whether a text box had a certain value you might write a rule like:

Example Error Rule 1
IF(TheTextBoxReturn= "Expected Value",0, 1)

Which would return no error (0) if the value of the text box is "Expected Value", otherwise it will return the number of a message - in this case 1.

Alternative way to create a form message

Form messages can also be constructed in the same way as in DriveWorks Solo.

  • Select a form control and build a rule form the "Error Result".
  • The rule could look something like this:
Example Error Rule 2
IF(OR(HeightReturn>HeightMax, HeightReturn<HeightMin), "Enter a Height between "&HeightMin& " and "&HeightMax, "")