>We have about 25 properties that we need for some forms.
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>Not all properties are needed for each form. Example: one form may need 10 properties and another may need 15 properties.
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>We have two options:
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>1. Create a class with all the 25 properties and use the ones we need in the instance of that class.
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>2. Create and add only needed properties on the fly when we load the form.
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>
>Any insight which option may be a better choice ?

Option 1. Why bother with #2? Negligible performance hit and overhead with that few properties.