Template:Language - C Sharp Write Code - Revision history

Jdecoux: /* Write Code */

2018-10-26T16:05:51Z

Write Code

← Older revision		Revision as of 16:05, 26 October 2018
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	You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:		You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:
	<syntaxhighlight lang=csharp>		<syntaxhighlight lang=csharp>
	DigitalInput ch;		DigitalInput ch = new DigitalInput();
	</syntaxhighlight>		</syntaxhighlight>

Jdecoux: /* Step Three: Do Things with the Phidget */

2018-08-13T15:49:07Z

Step Three: Do Things with the Phidget

← Older revision		Revision as of 15:49, 13 August 2018
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	</syntaxhighlight>		</syntaxhighlight>

			If you are using multiple Phidgets in your program, check out our page on [[Using Multiple Phidgets]] for information on how to properly address them and use them in events.

	If events do not suit your needs, you can also poll the device directly for data using code like this:		If events do not suit your needs, you can also poll the device directly for data using code like this:

Jdecoux: /* Step Three: Do Things with the Phidget */

2018-07-16T18:41:10Z

Step Three: Do Things with the Phidget

← Older revision		Revision as of 18:41, 16 July 2018
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	</syntaxhighlight>		</syntaxhighlight>

	'''Important Note:''' There will be a period of time between the attachment of a Phidget sensor and the availability of the first data from the device. Any attempts to get this data before it is ready will result in an ~~error code, and a specific nonsensical result~~. See more information on this on our page for [[Unknown Values]].		'''Important Note:''' There will be a period of time between the attachment of a Phidget sensor and the availability of the first data from the device. Any attempts to get this data before it is ready will result in an exception. See more information on this on our page for [[Unknown Values]].

	====Enumerations====		====Enumerations====

Jdecoux at 18:00, 16 July 2018

2018-07-16T18:00:21Z

← Older revision		Revision as of 18:00, 16 July 2018
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	{{WriteCode_Intro\|C#\|CSharp}}		{{WriteCode_Intro\|C#\|CSharp}}

	==== Step One: Step One: Create and Address ====		=== Step One: Step One: Create and Address ===
	You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:		You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:
	<syntaxhighlight lang=csharp>		<syntaxhighlight lang=csharp>
Line 26:		Line 26:
	</syntaxhighlight>		</syntaxhighlight>

	==== Step Two: Open and Wait for Attachment ====		=== Step Two: Open and Wait for Attachment ===
	After we have specified which Phidget to connect to, we can open the Phidget object like this:		After we have specified which Phidget to connect to, we can open the Phidget object like this:
	<syntaxhighlight lang=CSharp>		<syntaxhighlight lang=CSharp>
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	We recommend using this attach handler to set any initialization parameters for the channel such as DataInterval and ChangeTrigger from within the AttachHandler, so the parameters are set as soon as the device becomes available.		We recommend using this attach handler to set any initialization parameters for the channel such as DataInterval and ChangeTrigger from within the AttachHandler, so the parameters are set as soon as the device becomes available.

	==== Step Three: Do Things with the Phidget ====		=== Step Three: Do Things with the Phidget ===
	We recommend the use of event driven programming when working with Phidgets. In a similar way to handling an attach event as described above, we can also add an event handler for a state change event:		We recommend the use of event driven programming when working with Phidgets. In a similar way to handling an attach event as described above, we can also add an event handler for a state change event:
	<syntaxhighlight lang=csharp>		<syntaxhighlight lang=csharp>
Line 95:		Line 95:
	</syntaxhighlight>		</syntaxhighlight>

	==== Step Four: Close and Delete ====		=== Step Four: Close and Delete ===
	At the end of your program, be sure to close your device.		At the end of your program, be sure to close your device.
	<syntaxhighlight lang=cSharp>		<syntaxhighlight lang=cSharp>
	ch.Close()		ch.Close()
	</syntaxhighlight>		</syntaxhighlight>

Jdecoux: /* Write Code */

2018-07-16T17:59:30Z

Write Code

← Older revision		Revision as of 17:59, 16 July 2018
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	{{WriteCode_Intro\|C#\|CSharp}}		{{WriteCode_Intro\|C#\|CSharp}}

	==== Step One: ~~Initialize~~ and ~~Open~~ ====		==== Step One: Step One: Create and Address ====
	You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:		You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:
	<syntaxhighlight lang=csharp>		<syntaxhighlight lang=csharp>
Line 9:		Line 9:


	Next, ~~the~~ Phidget ~~object needs~~ to ~~be initialized and opened:~~		Next, we can address which Phidget we want to connect to by setting parameters such as ''DeviceSerialNumber''.
	<syntaxhighlight lang=cSharp>		<syntaxhighlight lang=cSharp>
	ch = ~~new DigitalInput();~~		ch.DeviceSerialNumber = 496911;
	~~ch.Open()~~;
	</syntaxhighlight>		</syntaxhighlight>

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	try{		try{
	ch = new DigitalInput();		ch = new DigitalInput();
	ch.~~Open()~~;		ch.DeviceSerialNumber = 496911;
	}catch(PhidgetException ex){		}catch(PhidgetException ex){
	Console.WriteLine("Error: " + ex.Description);		Console.WriteLine("Error: " + ex.Description);
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	</syntaxhighlight>		</syntaxhighlight>

	==== Step Two: Wait for Attachment ~~of the Phidget~~ ====		==== Step Two: Open and Wait for Attachment ====
	~~Simply calling~~ open ~~does not guarantee you can use~~ the Phidget ~~immediately. To use a Phidget, it must be plugged in (attached). We can handle~~ this ~~by using event driven programming and tracking the attach events. Alternatively, we can modify our code so we wait for an attachment~~:		After we have specified which Phidget to connect to, we can open the Phidget object like this:
	<syntaxhighlight lang=CSharp>		<syntaxhighlight lang=CSharp>
	~~ch = new DigitalInput();~~		ch.Open(5000);
	ch.Open(5000); ~~//wait for attach for 5 seconds, if not time out~~
	</syntaxhighlight>		</syntaxhighlight>

	~~Waiting for attachment~~ will block indefinitely until a connection is made, or until the timeout value is exceeded.		To use a Phidget, it must be plugged in (attached). We can handle this by calling '''Open(''timeout'')''', which will block indefinitely until a connection is made, or until the timeout value is exceeded. Simply calling ''Open'' does not guarantee you can use the Phidget immediately.

			Alternately, you could verify the device is attached by using event driven programming and tracking the attach events.

	To use events, we have to modify our code slightly:		To use events, we have to modify our code slightly:
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	ch = new DigitalInput();		ch = new DigitalInput();
	ch.Attach += onAttachHandler;		ch.Attach += onAttachHandler;
	ch.Open();		ch.Open(5000);
	</syntaxhighlight>		</syntaxhighlight>

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	}		}
	</syntaxhighlight>		</syntaxhighlight>

			We recommend using this attach handler to set any initialization parameters for the channel such as DataInterval and ChangeTrigger from within the AttachHandler, so the parameters are set as soon as the device becomes available.

	==== Step Three: Do Things with the Phidget ====		==== Step Three: Do Things with the Phidget ====
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	<syntaxhighlight lang=cSharp>		<syntaxhighlight lang=cSharp>
	stateText.Text = "State: " + ch.State;		stateText.Text = "State: " + ch.State;
			</syntaxhighlight>

			'''Important Note:''' There will be a period of time between the attachment of a Phidget sensor and the availability of the first data from the device. Any attempts to get this data before it is ready will result in an error code, and a specific nonsensical result. See more information on this on our page for [[Unknown Values]].

			====Enumerations====

			Some Phidget devices have functions that deal with specific predefined values called enumerations. Enumerations commonly provide readable names to a set of numbered options.

			Enumerations with Phidgets in Visual Basic .NET will take the form of '''Phidget22.EnumerationType.Enumeration_Name'''.

			For example, specifying a SensorType to use the 1142 for a voltage input would look like:
			<syntaxhighlight lang=cSharp>
			Phidget22.VoltageSensorType.PN_1142
			</syntaxhighlight>
			and specifying a K-Type thermocouple for a temperature sensor would be:
			<syntaxhighlight lang=cSharp>
			Phidget22.ThermocoupleType.K
			</syntaxhighlight>
			The Phidget error code for timing out could be specified as:
			<syntaxhighlight lang=cSharp>
			Phidget22.ErrorCode.Timeout
	</syntaxhighlight>		</syntaxhighlight>

Mparadis at 16:52, 28 June 2018

2018-06-28T16:52:44Z

← Older revision		Revision as of 16:52, 28 June 2018
Line 1:		Line 1:
			==Write Code==
	{{WriteCode_Intro\|C#\|CSharp}}		{{WriteCode_Intro\|C#\|CSharp}}

			==== Step One: Initialize and Open ====
			You will need to declare your Phidget object in your code. For example, we can declare a digital input object like this:
			<syntaxhighlight lang=csharp>
			DigitalInput ch;
			</syntaxhighlight>


			Next, the Phidget object needs to be initialized and opened:
			<syntaxhighlight lang=cSharp>
			ch = new DigitalInput();
			ch.Open();
			</syntaxhighlight>



			Although we are not including it on this page, you should include error handling for all Phidget functions. Here is an example of the previous code with error handling:
			<syntaxhighlight lang=cSharp>
			try{
			ch = new DigitalInput();
			ch.Open();
			}catch(PhidgetException ex){
			Console.WriteLine("Error: " + ex.Description);
			}
			</syntaxhighlight>

			==== Step Two: Wait for Attachment of the Phidget ====
			Simply calling open does not guarantee you can use the Phidget immediately. To use a Phidget, it must be plugged in (attached). We can handle this by using event driven programming and tracking the attach events. Alternatively, we can modify our code so we wait for an attachment:
			<syntaxhighlight lang=CSharp>
			ch = new DigitalInput();
			ch.Open(5000); //wait for attach for 5 seconds, if not time out
			</syntaxhighlight>

			Waiting for attachment will block indefinitely until a connection is made, or until the timeout value is exceeded.


			To use events, we have to modify our code slightly:
			<syntaxhighlight lang=CSharp>
			ch = new DigitalInput();
			ch.Attach += onAttachHandler;
			ch.Open();
			</syntaxhighlight>

			Next, we have to declare the function that will be called when an attach event is fired - in this case the function ''onAttachHandler'' will be called.
			<syntaxhighlight lang=CSharp>
			void onAttachHandler (object sender, Phidget22.Events.AttachEventArgs e){
			attachedText.Text = "Attached";
			}
			</syntaxhighlight>

			==== Step Three: Do Things with the Phidget ====
			We recommend the use of event driven programming when working with Phidgets. In a similar way to handling an attach event as described above, we can also add an event handler for a state change event:
			<syntaxhighlight lang=csharp>
			ch = new DigitalInput();
			ch.Attach += onAttachHandler;
			ch.StateChange += onStateChangeHandler;
			ch.Open();
			</syntaxhighlight>

			This code will connect a function and an event. In this case, the ''onStateChangeHandler'' function will be called when there has been a change to the devices input. Next, we need to create the ''onStateChangeHandler'' function:
			<syntaxhighlight lang=cSharp>
			void onStateChangeHandler(object sender, Phidget22.Events.DigitalInputStateChangeEventArgs e) {
			stateText.Text = "State: " + e.State;
			}
			</syntaxhighlight>


			If events do not suit your needs, you can also poll the device directly for data using code like this:
			<syntaxhighlight lang=cSharp>
			stateText.Text = "State: " + ch.State;
			</syntaxhighlight>

			==== Step Four: Close and Delete ====
			At the end of your program, be sure to close your device.
			<syntaxhighlight lang=cSharp>
			ch.Close()
			</syntaxhighlight>

Mparadis at 21:36, 26 June 2018

2018-06-26T21:36:26Z

← Older revision		Revision as of 21:36, 26 June 2018
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	{{WriteCode_Intro\|C#}}		{{WriteCode_Intro\|C#\|CSharp}}

Mparadis: Created page with "{{WriteCode_Intro|C#}}"

2018-06-26T21:04:19Z

Created page with "{{WriteCode_Intro|C#}}"

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