Calculate age from date selection in TextBox using JavaScript in ASP.Net

Question

How to select a date and display age in textbox in aspnetIn date i selected one date and this date age will be display in textbox4 and age will be greater than 18 and less than 60For ex my date is 21052016 this date display in textbox4 format textbox4 age display ltaspTextBox ID34TextBox334 runat34server34 placeholder34Date Of Birth34 TextMode34Date34gtltaspTextBoxgt ltaspTextBox ID34TextBox434 runat34server34 placeholder34Age34

dharmendr · Accepted Answer

Hi NarendraMCheck this example Now please take its reference and correct your codeFor Age validation refer below articleDate of Birth Age Validation in JavaScriptHTMLlthtml xmlns34httpwwww3org1999xhtml34gtlthead runat34server34gt    lttitlegtlttitlegtltheadgtltbodygt    ltform id34form134 runat34server34gt        ltaspTextBox ID34TextBox334 runat34server34 placeholder34Date Of Birth34 TextMode34Date34 onchange34DateSelectionChanged34gtltaspTextBoxgt        ltaspTextBox ID34TextBox434 runat34server34 placeholder34Age34gtltaspTextBoxgt    ltformgt    ltscript type34textjavascript34gt        function DateSelectionChanged             var today  new Date            var dob  new DatedocumentgetElementById39ltTextBox3ClientIDgt39value            var months  todaygetMonth  dobgetMonth  12

Calculate age from date selection in TextBox using JavaScript in ASP.Net

Date of Birth (Age) Validation in JavaScript

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