{"id":1360,"date":"2019-03-25T17:34:45","date_gmt":"2019-03-25T20:34:45","guid":{"rendered":"http:\/\/xexeu.elipse.com.br\/pt\/basic-vbscript-for-elipse-e3-lesson-3-decision-commands\/"},"modified":"2019-05-29T17:05:54","modified_gmt":"2019-05-29T20:05:54","slug":"basic-vbscript-for-elipse-e3-lesson-3-decision-commands","status":"publish","type":"post","link":"https:\/\/kb.elipse.com.br\/en\/basic-vbscript-for-elipse-e3-lesson-3-decision-commands\/","title":{"rendered":"Basic VBScript for Elipse E3: Lesson 3 – Decision Commands"},"content":{"rendered":"

Command If…Else…ElseIf…End If <\/span><\/span><\/p>\n

This command allows taking decisions during a script’s execution. The syntax is the following:<\/p>\n

If condition Then<\/span>
code that will be executed if the condition is true. <\/span>
Else<\/span>
code that will be executed if the condition is NOT true.<\/span>
End if<\/span><\/p>\n

Examples:<\/p>\n

If Engine=0 Then<\/span>
\u00a0\u00a0\u00a0 Text=”Engine off”<\/span>
Else<\/span>
\u00a0\u00a0\u00a0 Text=”Engine on”<\/span>
End if<\/span>
More than one condition can be verified in the same command:<\/p>\n

If Then<\/span>
\u00a0\u00a0\u00a0 code that will be executed if condition1 is true.<\/span>
Elseif Then<\/span>
\u00a0\u00a0\u00a0 code that will be executed if condition2 is true.<\/span>
Elseif <condition<\/span>3> Then<\/span>
\u00a0\u00a0\u00a0 code that will be executed if condition3 is true.<\/span>
Else<\/span>
\u00a0\u00a0\u00a0 code that will be executed if none of the conditions is true.<\/span>
End if<\/span><\/p>\n

Examples:<\/p>\n

If Engines=0 then<\/span>
\u00a0\u00a0\u00a0 Text=”Engines off”<\/span>
Elseif Engines=1 then<\/span>
\u00a0\u00a0\u00a0 Text=”Engine 1 on”<\/span>
Elseif Engines=2 then<\/span>
\u00a0\u00a0\u00a0 Text=”Engine 2 on”<\/span>
Elseif Engines=3 then<\/span>
\u00a0\u00a0\u00a0 Text=”Engines 1 and 2 on”<\/span>
Else<\/span>
\u00a0\u00a0\u00a0 Text=”Status error. Check the engines”<\/span>
End if<\/span>
Exercises:<\/span><\/span><\/p>\n

1. Write the code for the following dialog boxes and display on a second message the user’s answer [(Yes or No) and (Retry or Cancel)].<\/p>\n

\"\"
\nFigure 9<\/span>\"\"
\nFigure 10<\/span><\/div>\n

2. Create a setpoint that only allows typing values.
\n3. By changing setpoint’s value<\/span>, modify a rectangle’s color by script, according to the chart below. For any value that is not in the chart, the rectangle should be black.<\/p>\n\n\n\n\n\n\n\n
\u00a0Minimum<\/td>\n\u00a0Maximum<\/td>\nColor<\/td>\n<\/tr>\n
\u00a00<\/td>\n\u00a010<\/td>\n\u00a0Blue<\/td>\n<\/tr>\n
\u00a010<\/td>\n\u00a050<\/td>\n\u00a0Green<\/td>\n<\/tr>\n
\u00a050<\/td>\n\u00a070<\/td>\n\u00a0Yellow<\/td>\n<\/tr>\n
\u00a070<\/td>\n\u00a0100<\/td>\n\u00a0Red<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n


Select Case Command<\/span><\/span><\/p>\n

This command executes one chosen case among several instructions groups. The syntax is:<\/p>\n

Select Case <\/span>
\u00a0\u00a0\u00a0 Case <\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>
\u00a0\u00a0\u00a0 Case <\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>
End Select<\/span><\/p>\n

Examples:<\/p>\n

Select Case Engines<\/span>
Case 0<\/span>
\u00a0\u00a0\u00a0 Text=”Engines off”<\/span>
Case 1<\/span>
\u00a0\u00a0\u00a0 Text=”Engine 1 on”<\/span>
Case 2<\/span>
\u00a0\u00a0\u00a0 Text=”Engine 2 on”<\/span>
Case 3<\/span>
\u00a0\u00a0\u00a0 Text=”Engines 1 and 2 on”<\/span>
Case else<\/span>
\u00a0\u00a0\u00a0 Text=”Status Error. Verify the engines”<\/span>
End select<\/span><\/p>\n

Exercises:<\/span><\/span><\/p>\n

4. Insert two screens in your application.
\n5. Create a menu with the name of all the screens, using SelectMenu method from the E3 Viewer.
\n6. By clicking on screen’s name on the menu, open the selected screen.<\/p>\n

Attachments:<\/h3>\n

Lesson3.zip<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Command If…Else…ElseIf…End If This command allows taking decisions during a script’s execution. The syntax…
\nAutor
\nPaula Pereira En\u00e9as<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0},"categories":[763],"tags":[],"yoast_head":"\nBasic VBScript for Elipse E3: Lesson 3 - Basic VBScript for Elipse E3: Lesson 3 - Decision Commands[:] - Elipse Knowledgebase<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kb.elipse.com.br\/en\/basic-vbscript-for-elipse-e3-lesson-3-decision-commands\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Basic VBScript for Elipse E3: Lesson 3 - Decision Commands\" \/>\n<meta property=\"og:description\" content=\"Command If...Else...ElseIf...End If This command allows taking decisions during a script's execution. 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