Copy Paste Trim and Only Numeric

import { OnInit, Directive, HostListener, EventEmitter, Output } from "@angular/core";

@Directive({

selector: "[copyPasteTrimAndOnlyNumeric]",

providers: []

})

export class CopyPasteTrimAndOnlyNumericDirective {

@Output() ngModelChange: EventEmitter<any> = new EventEmitter();

value: any;

constructor() { }

ngOnInit(): void { }

@HostListener('paste', ['$event']) onPaste(e: ClipboardEvent) {

debugger

e.preventDefault();

let pastedText = e.clipboardData.getData('text');

if (pastedText) {

pastedText = pastedText.replace(/[^0-9]+/g, '')

if (pastedText && pastedText.length > 11)

pastedText = pastedText.substring(0, 11);

this.ngModelChange.emit(pastedText);

}

}

}

Enum Display Name'ini çekme

using System;
using System.ComponentModel.DataAnnotations;
using System.Reflection;

public static class EnumExtensions
{
    public static string GetDisplayName(this Enum enu)
    {
        var attr = GetDisplayAttribute(enu);
        return attr != null ? attr.Name : enu.ToString();
    }

    public static string GetDescription(this Enum enu)
    {
        var attr = GetDisplayAttribute(enu);
        return attr != null ? attr.Description : enu.ToString();
    }

    private static DisplayAttribute GetDisplayAttribute(object value)
    {
        Type type = value.GetType();
        if (!type.IsEnum)
        {
            throw new ArgumentException(string.Format("Type {0} is not an enum", type));
        }

        // Get the enum field.
        var field = type.GetField(value.ToString());
        return field == null ? null : field.GetCustomAttribute<DisplayAttribute>();
    }
}