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我需要一个朋友的自动登录的工作，但我不能完成它，我不能使用文本框的ID插入文本，试图自动登录电子网站
调试器说： “未将对象引用设置为对象的实例”
你能告诉我我做错了什么或者如何解决它吗？
这是形式：
Public Class Form1
'Dim WebBrowser1 As New WebBrowser
Dim elm
Public Sub searchbutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles searchbutton.Click
'WebBrowser1.Document.GetElementById("id_username").SetAttribute("value", "yourusernamehere")
WebBrowser1.Document.GetElementById("id_username").InnerText = "yourusernamehere"
End Sub
Public Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
'WebBrowser1.Navigate("http://www.planetromeo.com/")
WebBrowser1.Navigate("http://www.planetromeo.com/main/login.php")
End Sub
End Class
这是HTTP：//网站... /主/ login.php中来源：
<body class="pgLe" id="pgLeLo">
<div id="head"> <h1>Inicio de sesión</h1></div>
<div id="loginWindow">
<form method="post" action="https://www.planetromeo.com" name="login" target="_top" onsubmit="return submithandler()">
<input type="hidden" name="PHPSESSID" value="wLzgSbXmdg7Goi1VYDiaXc4Hs4PV71gs" /> <input type="hidden" name="salt" id="id_salt" value="8547695" />
<input type="hidden" name="resX" id="id_resX" value="" />
<input type="hidden" name="resY" id="id_resY" value="" />
<input type="hidden" name="secure" id="id_secure" value="" />
<input type="hidden" name="initCallSec" id="id_initCallSec" value="0" />
<div id="loginBox">
<div class="spacer" style="height:9px;padding:0"></div>
<div class="inputBox">
<input type="text" name="username" value="" id="id_username" size="12" maxlength="70" class="textbox" onchange="document.forms['login'].erinnern.checked=false" /><br />
<label for="id_username">Nombre del perfil</label>
</div>
<div class="inputBox">
<input type="password" name="passwort" value="" id="id_password" size="12" maxlength="20" class="textbox" onchange="document.forms['login'].secure.value=''" /><br />
<label for="id_password">Contraseña</label>
</div>
<div id="statusBox">
<select name="status" id="status" class="textbox">
<option value="-1">Como última vez</option>
<option value="2">Charlar</option><option value="6">Amigos</option><option value="1">Nada</option><option value="3">Relación</option><option value="4">Cita</option><option value="7">Sexo</option><option value="8">Ocupado</option><option value="0">Ausente</option><option value="5">Invisible (Plus)</option> </select>
</div>
<div class="checkerBox">
<input type="checkbox" name="erinnern" value="1" id="id_erinnern" class="checkbox" /><label for="id_erinnern"><a href="../service/kontakthilfe/keyword_suche.php?helpid=166" onclick="return openUrl(this.href)">Recordar</a></label>
</div>
<div class="checkerBox">
<input type="checkbox" name="jugendfrei" value="1" id="jugendfrei" class="checkbox" /><label for="jugendfrei"><a href="../service/kontakthilfe/keyword_suche.php?helpid=167" onclick="return openUrl(this.href)">Sin XXX</a></label>
</div>
<div>
<input type="submit" value="Entrar" class="button" />
</div>
</div>
<div id="infoBox">
<a href="https://www.planetromeo.com//00000000000000000000000000000000/service/login/" target="mitte">¿Olvidaste tu contraseña?</a><br />
<a href="https://www.planetromeo.com" target="_top">Activar SSL</a>
</div>
</form>
</div>
这是http：// site ... com来源：
<!DOCTYPE html>
<html>
<head>
<meta name="apple-itunes-app" content="app-id=404386888" /><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" /><title>PlanetRomeo</title>
<script type="text/javascript">
function switchLanguage(lang) {
var frm = frames['oben'].document.forms['jump'];
frm.lang.value = lang;
frm.submit();
return false;
}
</script>
<meta name="keywords" content="planetromeo,romeo,community,chat,men,kontakte" />
<meta name="description" content="Online community and dating service for men. Free registration and search." />
<link rel="apple-touch-icon-precomposed" href="/v1/img/touch-icon.png" />
</head>
<frameset cols="*,796,*" framespacing="0" border="0" frameborder="0">
<frame name="links" src="/00000000000000000000000000000000/main/left.php" scrolling="no" noresize="noresize" />
<frameset rows="58,*" framespacing="0" border="0" frameborder="0">
<frame name="oben" src="/00000000000000000000000000000000/main/top.php" marginwidth="0" marginheight="0" scrolling="no" noresize="noresize" />
<frameset cols="116,680" framespacing="0" border="0" frameborder="0">
<frame name="persoenliches" src="/main/login.php" marginwidth="0" marginheight="0" scrolling="no" noresize="noresize" />
<frame name="mitte" src="/00000000000000000000000000000000/main/index.php" marginwidth="0" marginheight="0" scrolling="auto" noresize="noresize" />
</frameset>
</frameset>
<frame name="heartbeat" src="/00000000000000000000000000000000/main/right.php" scrolling="no" noresize="noresize" />
<noframes>
<h1></h1>
<p>Online community and dating service for men. Free registration and search.</p>
<p>Sorry, frame support needed!</p>
<a href="/00000000000000000000000000000000/main/top.php">Menu</a><br />
<a href="/00000000000000000000000000000000/main/index.php">Main Page</a>
</noframes>
</frameset>
</html>
直接加载框架不起作用。首先加载主页，然后框架，恐怕我不经常使用webbrowsers或网站的框架，所以我不知道这个 – Steve
Thankyou评论的原因，但你能告诉我你的意思是什么“加载框架”？我加载主页时没有加载框架？那么我怎么可以加载一个框架？ – ElektroStudios
在您的发布代码中，在form1.load中，您可以导航到http://www.planetromeo.com/main/login.php，这是边栏中的框架。如果您尝试在浏览器中打开该网址，则该网址为空白，除非您已经访问过该网页。清除Cookies或打开私人浏览标签，然后自己尝试 – Steve