I have a windows webview2 application where we are automating 3rd party website with too many nested iframes and I want to execute javascript in a particular iframe. I want to know how get CoreWebView2Frame instance for the particular iframe using WebView2. Microsoft documentation didn't help.
I am looking for an example or a documentation to work with CoreWebView2Frame Class and shows how to execute javascript in a particular iframe by using CoreWebView2Frame.ExecuteAsync().
I have gone throught the this thread but it's too difficult for me to understand.
You can get a CoreWebView2Frame by handling FrameCreated event and use it later.
Example:
In the following example, the WebView2 browses this Uri, then we find the iframe inside the page, and store it for later use. Later when the user clicks on a button on the WinForms app, using ExecuteScriptAsync method of the iframe, we click on a link inside the iframe programmatically.
To do so, drop a WebView2 and a Button on the form. Handle Load event of the form and Click event of the button and modify the code like this:
//using Microsoft.Web.WebView2.Core;
CoreWebView2Frame sampleFrame;
private async void Form1_Load(object sender, EventArgs e)
{
webView21.Source = new Uri(
"https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_link_test");
await webView21.EnsureCoreWebView2Async();
webView21.CoreWebView2.FrameCreated += CoreWebView2_FrameCreated;
}
private void CoreWebView2_FrameCreated(object? sender,
CoreWebView2FrameCreatedEventArgs e)
{
if (e.Frame.Name == "iframeResult")
{
sampleFrame = e.Frame;
}
}
private async void button1_Click(object sender, EventArgs e)
{
if (sampleFrame != null && sampleFrame.IsDestroyed() == 0)
{
await sampleFrame.ExecuteScriptAsync(
"document.getElementsByTagName('a')[0].click();");
}
}
Now if you click on the button, the link which is inside the iframe will be clicked.
Related
I want to click on one link in one page.
Here is my code:
private void Button1_Click(object sender, EventArgs e)//GO
{
if (!Xpcom.IsInitialized) Xpcom.Initialize("Firefox");
geckoWebBrowser1.Navigate("http://www.tsetmc.com/loader.aspx?ParTree=151311&i=67126881188552864");
}
And I want to click on a link:
حقیقی-حقوقی
can anybody help me?
thanks.
I just looked up a Gecko project where I was clicking on the link and while the following might not be the most elegant way the same technique should work for you:
private void geckoWebBrowser1_DocumentCompleted(object sender, EventArgs e)
{
var elements = geckoWebBrowser1.Document.GetElementsByTagName("a");
foreach (GeckoHtmlElement element in elements)
{
if (element.ClassName == "violet")
{
element.ScrollIntoView(false);
element.Click();
}
}
}
I don't think the ScrollIntoView call is actually required, I just did that because it was an animated button and I wanted to see it was working. But you will need to wait until the document has loaded before clicking so I've put it in the DocumentCompleted event so before the Navigate don't forget to add:
geckoWebBrowser1.DocumentCompleted += geckoWebBrowser1_DocumentCompleted;
I'm making Windows universal app using Visual Studio 2013. I'm trying to accomplish something like in this article.
On the main page I have many pictures. After clicking on one of these pictures the user goes to another page, which has a check box.
After user checkes the check box, I have to change the image on main page.
I don't know if this code is correct, but I'm doing something like this for second page
private void CheckBox_Checked(object sender, RoutedEventArgs e)
{
points.Text = (Convert.ToInt32(points.Text) + 4).ToString();
var currentCheckBoxItem = sender as CheckBox;
if (currentCheckBoxItem.IsChecked == true)
{
otra.bedre1.Source = (new Uri("ms-appx:///Assets/complete.png", UriKind.Absolute));
// }
But this is code for mainpage where can choose task:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
bedre1.Source = ImageSource;
}
Any ideas?
You would need to store the name and Checkstatus as fields inside SQlite database so that its available even after the app is closed. So you would need to do some research on it.
I have a requirement where I open a webpage using
WebRequest wr = WebRequest.Create(uri);
This webpage has a download button which needs to be clicked to download a zip file to my local directory. I do not know the URL for this download button, if i mouse over it it just shows the .aspx address.
Now how can I simulate this click so I can download the file?
using System;
using System.Windows.Forms;
namespace SampleBrowserautomate
{
public partial class Form1 : Form
{
// first of all, insert web browser control and button control into your form
string target = "https://www.facebook.com/login.php";
public Form1()
{
InitializeComponent();
}
private void btnGo_Click(object sender, EventArgs e)
{
webBrowser1.Navigate(target);
}
private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser b = (WebBrowser)sender;
b.Document.GetElementById("email").InnerText = "helloworld#gmail.com";
b.Document.GetElementById("pass").InnerText = "HelloWorld";
b.Document.GetElementById("u_0_1").InvokeMember("click");
}
}
}
Another examples on msdn
http://msdn.microsoft.com/en-us/library/System.Windows.Forms.HtmlElement(v=vs.110).aspx
http://msdn.microsoft.com/en-us/library/system.windows.forms.htmlelement.setattribute(v=vs.110).aspx
What about UI automation? Is this what you're after?
http://msdn.microsoft.com/en-us/library/dd286726.aspx
EDIT: How about Web UI automation?
http://msdn.microsoft.com/en-us/library/hh404082.aspx
So I am working on this in between things, but check this out.
You can fire the client side event of that button using this javascript:
__doPostBack('DownloadButton','OnClick');
This will work with the 'javascript:' header in the chrome console. Now you could probably automate this using greasemonkey(firefox) or another add on for chrome.
I am trying to make a web browser with multiple tabs. But now, I have a problem with the DocumentTitle for the name of the tabs.
The problem here is that the code to name the tab is performed before it loads the page. I tried to find a way to perform it after, but it doesn't work.
For example:
private void stackoverflowToolStripMenuItem_Click(object sender, EventArgs e)
{
((WebBrowser) tabControl1.SelectedTab.Controls[0]) .Navigate("Http://www.stackoverflow.com/");
Browser_Navigated(null, null);
}
void Browser_Navigated(object sender, WebBrowserNavigatedEventArgs e)
{
tabControl1.SelectedTab.Text = ((WebBrowser)tabControl1.SelectedTab.Controls[0]).DocumentTitle;
}
The WebBrowser class exposes a DocumentTitleChanged event that you can use to update the tab title.
I want to click event button in webbrowser object.
Button is clicked I want to reach out and write the code? For example, the login button is clicked on the webbrowser object in the pop-up on the site to capture the event and would like to write the code?
I write an example for you(how get event clicked button):
private void Form1_Load(object sender, EventArgs e)
{
//Or navigate to your url
webBrowser1.DocumentText = "<html><body><button id=\"btn1\" type=\"button\">Click Me!</button><button id=\"btn2\" type=\"button\">Click Me!</button></body></html>";
}
Call Click event:(when page loaded)
private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
webBrowser1.Document.Click += new HtmlElementEventHandler(Document_Click);
}
Get Active Element When User click on document
void Document_Click(object sender, HtmlElementEventArgs e)
{
//Check Element is Button
if (webBrowser1.Document.ActiveElement.TagName == "BUTTON")
{
if (webBrowser1.Document.ActiveElement.Id== "your button id")
{
//Do someting
}
}
}
If I understand correctly, you're using the WebBrowser control in C# WinForms and you would like to fire an event when a button is clicked.
The control doesn't have a click event, but the Document does. To do this you can use WebBrowser.Document.Click event and then loop through the HTML elements to find the one that was clicked.
web.Document.Click += new HtmlElementEventHandler(Document_Click);
This link will help also: webbrowser-control-get-element-by-type