Dynamically change validation rules on a TextBox in ASP.Net

Question

i have 1 textbox tb1 with 2 radiobuttons rb1rb2if rb1 checked tb1 accept only numeric with special characetesif i enter alphabets how to show error msgif rb2 checked it accepts any input datahow to write code for above requirementsplz explain with example

Mudassar · Accepted Answer

ReferToggle Multiple RegularExpression Validators for one TextBox based on RadioButton selection in ASPNet

Azim · Answer

Please refer this codelthtml xmlns34httpwwww3org1999xhtml34gtlthead runat34server34gt    lttitlegtlttitlegt    ltstyle type34textcss34gt        body                    fontfamily Arial            fontsize 10pt            ltstylegt    ltscript type34textjavascript34gt        function ToggleValidator             var valNumber  documentgetElementById34ltrevOnlyNumbersClientIDgt34            var valAlphabet  documentgetElementById34ltrevAlphabetsClientIDgt34            var radioButton  documentgetElementById34divRadioButtons34getElementsByTagName34input34            var selectedValue            for var i  0 i lt radioButtonlength i                 if radioButtonichecked  true                                         selectedValue  radioButtoninextSiblinginnerHTML                                        switch selectedValue

Dynamically change validation rules on a TextBox in ASP.Net

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