An object reference is required for the non-static field

Question

Hi,

 

public void load()

{

WebBrowser.Navigate("some site login Page");

_Processing = true;

var username = ConfigurationManager.AppSettings["username"];

var password = ConfigurationManager.AppSettings["password"];

while (_Processing)

{

Application.DoEvents();

if (WebBrowser.ReadyState == WebBrowserReadyState.Complete || WebBrowser.ReadyState == WebBrowserReadyState.Interactive)

{

var htmlDocument = this.WebBrowser.Document;

if (htmlDocument != null)

{

foreach (HtmlElement tag in htmlDocument.GetElementsByTagName("input"))

{

switch (tag.Name)

{

case "username":

tag.InnerText = username;

break;

case "password":

tag.InnerText = password;

break;

case "cmdlogin":

tag.RaiseEvent("onclick");

tag.InvokeMember("Click");

break;

}

}

}

_Processing = false;

}

}

}

 

 

the Yellow Marked Line's show's the error.   

 

   An object reference is required for the non-static field, method, or property 'WebBrowser.Navigate(string)'

 

I can't understand what happend in the function. can any one help me to solve this issue.

 

Thanks In Advance.