allow only numbers using key value - Asp.Net,C#,Sql server,jquery,Angularjs,Mvc,interview tips and coding tips

 <input ng-keypress="onlyNumbers($event)" min="0" type="number" step="1" ng-pattern="/^[0-9]{1,8}$/" ng-model="... ><input ng-keypress="onlyNumbers($event)" min="0" type="number" step="1" ng-pattern="/^[0-9]{1,8}$/" ng-model="... >

$scope.onlyNumbers = function(event){   
    var keys={
        'up': 38,'right':39,'down':40,'left':37,
        'escape':27,'backspace':8,'tab':9,'enter':13,'del':46,
        '0':48,'1':49,'2':50,'3':51,'4':52,'5':53,'6':54,'7':55,'8':56,'9':57
    };
    for(var index in keys) {
        if (!keys.hasOwnProperty(index)) continue;
        if (event.charCode==keys[index]||event.keyCode==keys[index]) {
            return; //default event
        }
    }   
    event.preventDefault();
};

Otherwise

<input type="text"  class="form-control"   ng-class="addButtonClicked==1 && !NbreUniteOeuvre?'error-border':''" ng-keypress="onlyNumbers($event)"  ng-pattern="/^\d+([,]\d+)?$/" ng-model="NbreUniteOeuvre" required />

if (event.key == '0' || event.key == '1' || event.key == '2' || event.key == '3' || event.key == '4' || event.key == '5' || event.key == '6' || event.key == '7' || event.key == '8' || event.key == '9' || event.key == ',')
        {
            return;
        }event.preventDefault();