Make an Advanced Search page with optional input fields
How to make an advanced search page with 2 or more input parameters?
I want to make one advanced search page for my application. I have some 7 input fields(parameters) in the search form. I have to make all these 7 parameters optional (even if some fields are left empty the results for the selected/entered fields should be displayed. i.e., if I have entered only 4 input fields and left the other 3 empty, the results for the entered 4 inputs shall appear.)
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