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svetotehnik  
#1 Posted : Wednesday, November 3, 2021 11:21:00 PM(UTC)
svetotehnik

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I need to get timecode of input, this code works:

Code:
dim xml as string = API.XML()
dim x as new system.xml.xmldocument
x.loadxml(xml)

dim time_position as string = (x.SelectSingleNode("//input[@number=1]/@position").Value)


but if I need to set number of active input it returns exception:

Code:
dim xml as string = API.XML()
dim x as new system.xml.xmldocument
x.loadxml(xml)

dim active_input as string = (x.SelectSingleNode("//active").InnerText)
dim time_position as string = (x.SelectSingleNode("//input[@number=active_input]/@position").Value)


tried to change to integer, also doesnt work. when write to console input determinates correctly

thank you!
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Papo  
#2 Posted : Thursday, November 4, 2021 10:40:16 AM(UTC)
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At first glance you can see that the xpath has a variable inside in this case active_input, you have to separate that variable from everything and or concatenate it.
translated from spanish with google
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GregS  
#3 Posted : Thursday, November 4, 2021 11:29:43 AM(UTC)
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The reason your command is not working is because it is looking for an input numbered "time_position", rather than the value of time_position.

To do what you want try the following commands:
Quote:

dim xml as string = API.XML()
dim x as new system.xml.xmldocument
x.loadxml(xml)

dim time_position as string = (x.SelectSingleNode("//input[@number=1]/@position").Value)

dim xml as string = API.XML()
dim x as new system.xml.xmldocument
x.loadxml(xml)

dim position_query as string = "//input[@number=" + time_position + "]/@position"
dim time_position as string = (state.SelectSingleNode(position_query).Value)

dim position_query as string = "//input[@number=" + time_position + "]/@position"
creates the query string that contains the value of time_position e.g. "//input[@number=1]/@position".

dim time_position as string = (state.SelectSingleNode(position_query).Value)
performs the xml query to return the position value.
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thanks 1 user thanked GregS for this useful post.
svetotehnik on 11/4/2021(UTC)
svetotehnik  
#4 Posted : Thursday, November 4, 2021 2:37:30 PM(UTC)
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Originally Posted by: GregS Go to Quoted Post
The reason your command is not working is because it is looking for an input numbered "time_position", rather than the value of time_position


Thank you very much!

I still don't quite understand how it works, but it does)

Code:
dim xml as string = API.XML()
dim x as new system.xml.xmldocument
x.loadxml(xml)

dim active_input as string = (x.SelectSingleNode("//active").InnerText)

dim xml2 as string = API.XML()
dim x2 as new system.xml.xmldocument
x2.loadxml(xml)

dim position_query as string = "//input[@number=" + active_input + "]/@position"
dim time_position as string = (x2.SelectSingleNode(position_query).Value)
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doggy  
#5 Posted : Thursday, November 4, 2021 5:00:34 PM(UTC)
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Code:
dim xml as string = API.XML()
dim x as new system.xml.xmldocument
x.loadxml(xml)

dim active_input as string = (x.SelectSingleNode("//active").InnerText)
dim time_position as string = (x.SelectSingleNode("//input[@number=" + active_input + "]/@position").Value)

Console.writeline(time_position )
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