Element “webBrowser”. How to wait for the page to load?

Document structure
"Form0" - Form
- - "panel2" - Panel
- - - "Frm5UC" - Custom item
- - - - "webBrowser1" - Browser

Application logic:
- go to the page in "webBrowser1";
- enter login;
- enter the password;
- click the "Login" button.

If I execute the logic through the code (this is the "Method_0 ()" method), the form does not have time to load in the "Authorization ()" method. I get "webBrowser1.Document = null", error "Object link does not indicate an object instance."

If I do everything through the interface, then everything works.

How to make the logic run programmatically?

private void Frm5UC_Load(object sender, EventArgs e)
{
webBrowser1.Visible = true;
// *** TESTS ***
Method_0();
}
#region *** TESTS ***
public void Method_0()
{
Method_1();
Method_2();
}
public void Method_1()
{
textBox2.Text = "_domain_com";
textBox1.Text = @"domain_com/login/";
button1.PerformClick();
}
public void Method_2() // ???????????
{
Authorization();
}
#endregion *** TESTS ***
private void button1_Click(object sender, EventArgs e)
{
webBrowser1.Navigate(textBox1.Text);
}
private void button1_Click(object sender, EventArgs e)
{
Authorization();
}
public void Authorization() // ???????????
{
foreach (HtmlElement he in webBrowser1.Document.GetElementsByTagName("input"))
{
if (he.GetAttribute("name") == "login[login]")
{
he.SetAttribute("value", "login798");
}
}
// Code "enter password"
// Code "Press the button"
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Khaja Moizuddin7y ago
https://social.msdn.microsoft.com/Forums/en-US/cdb976dc-ed8b-4879-9f71-a9f509f11b87/page-load-time-webbrowser-control?forum=csharpgeneral https://www.codeproject.com/Questions/163495/Wait-for-webBrowser-to-finish-loading-the-page Solution from above link. protected void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { if (login_initiated == true) { webBrowser3.Document.Links[15].InvokeMember("click"); } } Try this way