NI-DAQmx .NET Framework 4.0 API Reference

IFilteredTypeDescriptor.GetFilteredTypeDescriptor Method (PropertyFilterType, PropertyFilterFlags)

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Updated2023-02-21
1 minute(s) read

Returns a list of filtered properties that belong to the Task subobject, according to the specified filtering type and filter flags.

Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302

Syntax

ICustomTypeDescriptor GetFilteredTypeDescriptor(
	PropertyFilterType filterType,
	PropertyFilterFlags filterFlags
)

Function GetFilteredTypeDescriptor ( 
	filterType As PropertyFilterType,
	filterFlags As PropertyFilterFlags
) As ICustomTypeDescriptor

Parameters

filterType: Type: NationalInstruments.DAQmxPropertyFilterType
The type of filtering to perform.
filterFlags: Type: NationalInstruments.DAQmxPropertyFilterFlags
The filtering options.

Return Value

Type: ICustomTypeDescriptor
An ICustomTypeDescriptor that contains the filtered properties.

Exceptions

Exception	Condition
ArgumentException	An invalid enumeration value was passed as an argument to the function.
DaqException	The NI-DAQmx driver returned an error.

Remarks

Property filtering is a mechanism whereby you can programmatically retrieve a list of properties that are applicable to a specific task's subobject, based on the filtering type.

You can call the GetProperties method on the returned ICustomTypeDescriptor in order to access the list of properties as a PropertyDescriptorCollection. When GetProperties(Attribute) is called with an attribute array as a filter, the returned properties are filtered as if they all have the BrowsableAttribute set to .

NI-DAQmx .NET Framework 4.0 API Reference

Table of Contents

IFilteredTypeDescriptor.GetFilteredTypeDescriptor Method (PropertyFilterType, PropertyFilterFlags)

Syntax

Parameters

Return Value

Exceptions

Remarks

See Also

Reference

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