Handling Security Messages In .NET WebBrowser Control?
Feb 19, 2010
I am attempting to write a VB.net application which will allow users to create their own widget plugins in html/jscript and i would like to set my own security options in the applications settings allowing users to choose what can run or not eg scripts, flash, activex.I would like to allow activex controls to be used without the windows security dialog in the WebBrowser Control (An ActiveX control is trying to interact with the page...) or what ever it says.
I started customizing the WB Control to suite my needs implementing various interfaces such as IOleClientSite, IDocHostShowUI, IDocHostUIHandler, etc...I can't seem to find anything that will allow me to control the security permissions of the WB Control. I tried to implement IHttpSecurity and IInternetSecurityManager but I'm either barking up the wrong tree or not doing it right.
How do you disable the Security Alert?I'm using the WebBrowser Control to open office documents and everytime I navigate to the files location and when use the right mouse button or try to open a document
I get a Security Alert Form that ask, You should only run files that come from websites that you trust.
I have a Visual Basic.Net Windows Forms application to which I am considering adding the WebBrowser control. I'm assuming that the PC's on which this application will ultimately be deployed/installed will have the latest Windows (XP, Vista, or 7) updates, a firewall, and an Internet security suite installed/running.
With this deployment environment in mind, does the WebBrowser control make my application or the deployment PC vulnerable to any significant security risks? Are there any programming issues that should be addressed to eliminate potential security risks when using the WebBrowser control?
I am creating a simple VB.NET WebBrowser to automate and simplify navigation of a web site. However on certain pages i get the following popup message. This is telling me about an error which is on the Web Site itself and thus out of my control.
Is it possible to block these popups from my application?
The application is for personal use, so auto-clicking yes would be an acceptable option.
Actually today I opened my yahoo mail and I saw 2030 messages, too much spam right. What I did I had to delete them all and it took me time. So right now I decided to make a program by using web browser in vb.net. I want to select all the messages and then delete them automatically "Its time consuming." I really don't have much experience with web browser. I mean I can do simple things like filling forms, submit event and so on... But I don't know how to select all the messages on a check box. How can I get started?
I've created a private internet explorer for personal use but when New Window Event occurs, Default Internet Explorer opens! How can I handle the URL of the New Window and use that for opening a new tab in my explorer navigated to that URL?
I am trying to pull some report details from a website. my home page is having a list of Report IDs, by clicking them i will be navigated to the detailed reports.. Similarly i have so many report IDs in my home page... i have loaded my page in webBrowser1 and capture the link of the first report id by looping through the page. After capturing the link of first report id i am trying to navigate to the link using webBrwoser2 which is placed in the same form. the page loaded sucessfully and i can extract the report to the textbox.
Here is the problem : before complete the navigation action in webbrowser2 the first loop used to get the links of report IDs got completed. So i am not able to loop all the report ID's Link to get all details.
I am not sure i am doing the right way of extracting a data from a web page..
I'm writing a tabbed web browser for someone who is learning VB.NET, and I have got to the point where I can add/remove browser controls into tab pages, controlled by one set of buttons on the main form, but I can't handle events from the WebBrowser objects.I have tried this but it says that 'DocumentTitleChanged' isnt an event of 'Control'...
Dim browser As New ArrayList browser.Add(New WebBrowser) browser(0).parent = TabControl1.SelectedTab browser(0).dock = DockStyle.Fill AddHandler browser(0).DocumentTitleChanged, TitleChangedHandler()
I want to update the tab title with the web page title when it changes. I started using a timer to update the tabs but there must be a way to add an event handler here.
I have a form in which their is a GroupBox control. I set the Font's Bold property to TRUE. I know that by default any other control put inside a gorupbox will inherit the Font's property settings. I have textboxes and labels in which I manually reset the Font Bold property to FALSE, however, I have a DataGridView that I did the same thing with but whenever I run the app in test mode, it reverts back to the Fonts' Bold property as TRUE rather than FALSE.
I am trying to control the security board using the Windows Firewall which connects to my server that was made in VB.Net. My only problem is when I open the Windows Firewall my server crashes. It also displays this error: "Error, win%fir%90y4e does not support this server. upgrade you version of Winsock.". So I upgraded myself to the latest Winsock that there is out there. After doing so I try again and my server still crashes, but this time with a different error. The error this time was the following: "Error, no client is available for win%fir%90y4e. try again later.". What do I do?
I want to use spy++ or Winspector But from what i Read they Dont work on windows 7 64bit Correct ? Im trying to read WM_COMMAND Messages from a App.And whenever i Select 'Log Messages' And find the windows etc.Nothing show's up. Is there a alternative ?
here I am again I have written a small class called 'Messages' that holds the user messages.The case is that I am not being able to import it. Here it is:
I am writing a few web based apps which will require a webbrowser extension. I have already used the IE webbrowser control that uses the trident web rendering engine. I believe this is MSHTML.DLL? Anyway, some of the users of my programs have complained of a few things. Particularily,
1. It seems to be a slow browser, at least compared to other rendering engines out there (webkit and gecko are 2 known ones).
2. On the developer side, it seems to be low in features. The features are sufficient in most cases, but there are some "special" things that I need.
3. It has VERY low HTML (and especially HTML5) compliance.
My question is, how much work would it take to use a different engine (such as webkit .net, which I HAVE heard of) and be able to distribute it easily. Or, if you guys feel ambitious, we could try writing a brand new engine ourselves. I know how big of a job it is, and frankly, I have no clue where to begin. I would just like your thoughts and opinions on the matter.
i have created an app to load an access database into a datagridview, which contains web urls. When button is clicked it webbrowser1 navigates to each url and each webpages document.inertext is put into textbox. This all work fine but after a while the webbrowser navigation becomes increasingly slower.
For Each RW As DataGridViewRow In Me.DataGridView1.SelectedRows '''''''''''#######cell values into strings ########'''''''''''''' If RW.Selected = True Then Dim domain As String
Is it possible to handle a mouseDown event in VB.Net (2008) regardless of the control firing the mouseDown event? Basically, I just want to catch a mouseDown event at the "form level" and don't want to program mouseDown event handlers in every control. Is there a way to do this?
I'm looking to populate a treeview control with nodes, at RUNTIME. When the user clicks on the node, it will open up a form to display the data for the device represented by the node.There are three groups of nodes. Each group has its own form that it uses. For example:
Ive tried to edit option on the webbrowser control, example javascript enable/disable. but found out that it uses IE's option and cannot be changed.So my question is: Is there a way to do a "webbrowser" without using the WEbbrowser control that is based on internetexplorer? If it is, can i change option example flash and so on?
In order to take advantage of the spell checking ability of WPF textboxes, I have added one to a user control (with the use of elementhost). This user control is used in various window forms. My current problem is trying to handle keyup events from this textbox but the windows form is unable to "get" any event from the control. I can access the properties of the textbox just fine (i.e. text, length, etc.) but keyboard events don't seem to work.I have found, however, that the following will bring back events from the WPF textbox:
Public Class MyUserControl Private _elementHost As New ElementHost Private _wpfTextbox As New System.Windows.Controls.Textbox
[code].....
The user control is now able to do something after the PreviewKeyUp event is fired in the WPF textbox. Now, I'm not completely sure how to have the window form containing this user control to work with this.
I am trying to figure out how to declaratively pass in a event handler into a user control, but I am stumped. All I can make work is the user control's event handler.. I can't seem to bubble up the caught event into the parent page. Ideas would be quite welcome. Here is my code:Default.aspx:
<%@ Page Language="VB" %> <%@ Register TagPrefix="rpt" TagName="filter" Src="WebUserControl.ascx" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
So I've made this control that inherits from the treeview control and basically loads objects from active directory into a treeview (url...).All working fine, but as this is the first custom control I have made that I have intended for other people to use, I'm not quite sure how I should approach error handling.I mean, obviously I shouldnt do something like show any exceptions in a messagebox because that might not be what the person that is using the control wants to happen. So do I just write out exception messages to the debug window? Do I swallow exceptions (guessing not)? Do I just totally ignore them so that they are thrown in the user's project?
I have admin module. This module have one master page which has the no of panels at left side. I have to make this panels visible and invisible with base control class which is constructed in VB language. I'm working with asp.net 2.0 with c# web site.
how do i construct this base control class and manage panels with Master Page on link button click event.
I'm looking to draw a trackbar normal, only with a transparent background. I have created a new class that supports transparent backgrounds set to true. Without using userpaint, the trackbar does nothing or takes the color of it's parent. When using userpaint I have to draw the control on mine own. Not quite sure where to start first though...
I've read about drawing a line (not so hard), drawing a floating object (to act as marker), and handling events on when the floating object moves left/right... Drawing 3 separate objects inside an inherited trackbar control seems like a clunky way of calling methods that should exist somewhere? Is there an easier way to draw the control normal without a background? If not, some in starting to implement all 3 new objects working together would be good (I could draw them separately but that's about it).
I have various input textboxes on my form. And based on entries made in each of the input textboxes, I update the display textbox. However, using AppendText message of textbox. I have my input textboxes set to accept only numeric values. So for each character inputted correctly, I update the display Textbox. Problem I have is when user selects Key.Back or Key.Delete, what I would like to do is do a Delete of last character in the display textbox, but I am yet to get this right. How do I delete the last character in the string that is contained in a TextBox using AppendText()
I have a regular application form with a WebBrowser control.I have strung together a .htm file (from a regular text file) which I then assign to the WebBrowser control. In the html file, I have filenames mentioned.I am trying to string together the html in such a way as to give a clickable link or button that will parse into html and open the corresponding file in another WebBrowser control in VB.I have tried using VBScript and JavaScript to put a button in the html.As long as the function or sub I call is also in the same html document, it works, but I really need to transfer the control back into visual basic where I can do the heavy lifting I need to.can I just not do this as a regular VB application? Any way to do it without adding the complication of requiring ActiveX?
I have a webbrowser control, where I show images (bmp files, that the program creates), and I want to add some UserControls to setup the images (as showing layers, or choosing colors to display). Is easy to do appropiate UserControls on VB.NET, and I know almost nothing about HTML, so, I would like to add standard VB.NET UserControls near the images.
