角度材质滑块-允许最小值而不禁用滑块

Question

我的角度项目中有一个材质滑块，我希望其值在200到5000之间。

我将最小值设置为200。200是有效值。但是，当我将滑块滑动到200时，它会自动禁用，好像值无效。

有什么想法要禁用此行为吗？

滑块：

<?php
include('./FTP/Net/SSH2.php');
include('./FTP/Crypt/RSA.php');

$ssh = new Net_SSH2('localhost');
$user = "phpssh";
$password = "****";
if (!$ssh->login($user, $password)) {
    exit('Login Failed');
}

mkdir("/home/".$dmsUser);

$dmsUser = "pragnesh";
$path = '/home/'.$dmsUser;
$dms_password = 'test1234';

$ssh->read('[prompt]');
$ssh->write("sudo -i \n");
$ssh->read('[prompt]'); //, NET_SSH2_READ_REGEX
$ssh->write("adduser ".$dmsUser."\n");
$ssh->read('Enter new UNIX password:');
$ssh->write($dms_password."\n");
$ssh->read('Retype new UNIX password:');
$ssh->write($dms_password."\n");
$ssh->read('Full Name []:');
$ssh->write("\n");
$ssh->read('Room Number []:');
$ssh->write("\n");
$ssh->read('Work Phone []:');
$ssh->write("\n");
$ssh->read('Home Phone []:');
$ssh->write("\n");
$ssh->read('Other []:');
$ssh->write("\n");
$ssh->read('Is the information correct? [Y/n]');
$ssh->write("Y \n");
$ssh->write("chown ".$dmsUser.":ubuntu ".$path." -R \n");

echo $dmsUser;