Accept only numeric values with a decimal precision of 2 in TextBox using JavaScript in ASP.Net

Question

Im attempting to trigger a popup warning to the user when any characters that is not an integer or decimal point is enteredHTMLltaspTextBox ID34TextBox134 runat34server34 onkeyup34checkTBthisvalue34gtJSfunction checkTBval     var allowedString  new RegExp34d34only allow integers amp decimal places    if allowedStringtestval  false         alert34FORBIDDEN34val    However the alert triggers regardless of whether the Re

dharmendr · Accepted Answer

Hi  DistroRefer below codelthtml xmlns34httpwwww3org1999xhtml34gtlthead runat34server34gt    lttitlegtlttitlegt    ltscript type34textjavascript34gt        function checkTBval             var allowedString  dd02  Allow 2 decimal place with numeric value            if allowedStringtestval  false                 alert34FORBIDDEN 34  val                        ltscriptgtltheadgtltbodygt    ltform id34form134 runat34server34gt    ltdivgt        ltinput name34TextBox134 type34text34 id34TextBox134 onkeyup34checkTBthisvalue34 gt    ltdivgt    ltformgtltbodygtlthtmlgtDemo

Accept only numeric values with a decimal precision of 2 in TextBox using JavaScript in ASP.Net

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