Web Forms :: Converting C# To Vb.net Form With Webbrowser?
Mar 28, 2011
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I found a C# web application that fetchs a thumbnail image of a webpage. It works well, only my site is in vb.net. I used a conversion tool. Windows FORMs doesn't fly, and I get an error. Is there something I can import to get the Webbrowser() to work in my application ? Dim m_Webbrowser as NEW Webrowser is underlined in blue. Also, I have noticed that when I select Show All in my toolobox, alot of tools are greyed out. Specifically under common tools, the webbrowser control is greyed out for a web application but they are available for a project. I want to have a webbrowser control in my website application. (vb.net)Most of the following is also underlined in blue:
A requirement of a program I am making is that it can 'print' a given URL into a PDF - the server has a PDF printer installed (and is the default printer), so it's just a matter of printing the page programmaticly, and it seems the best way is to use the WebBrowser control - however, I am running into issues
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With the above code, I get a script error 'dialogArguments.___IE_PrintType' is null or not an object' in shdoclc.dll/preview.dlg. If I have wb.Print() to somethign like wb.ShowSaveDialog() (or something like that, can't remember exactly), I notice the 'wb' object's document is a blank page, with just <html> tags and named 'about:blank'. But strangely, almost identical code (without the threading bit in the page_load method) works perfect in a normal Winforms based application.
Yeah some people would say "Are you crazy using winforms controls inside asp forms"... and I think they are right. But I would say.. "I'm not the only one!!, take a look" [URL] So... Doing some kind of stuff like the previous link. I did the following:
using System; using System.Threading; using System.Windows.Forms; namespace XXXX.aspx.Print { public partial class Drucker : System.Web.UI.Page { private ManualResetEvent mre = new ManualResetEvent(false); protected void Page_Load(object sender, EventArgs e) { Threading(); } private void Threading() { Thread t = new Thread(new ThreadStart(GoAhead)); t.SetApartmentState(ApartmentState.STA); t.Start(); mre.WaitOne(); t.Abort(); }...................................
I can't display some controls in the webbrowser such as MultiView, Menu, SiteMapPath or TreeView, is only white screen.
Other controls work. And some controls properties are restricted, I haven't full options. Before I used Visual Studio 2008 and I had less problems than now, I have VS 2010.
I tried to use the WebBrowser control in an ASP .NET application:
public BrowserForm() { webBrowser1 = new WebBrowser(); webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser1_DocumentCompleted);
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But still it's not working for me as desired...giving me weired errors like:
Error HRESULT E_FAIL has been returned from a call to a COM component
I'm not an expert of threading or COM but trying to convert a WindowApplication to WebApplication which takes a screenshot of a web page provided a URL. :(
I want to authenticate to linkedIn website and scrape the content in asp.net. In windows application we use windows brwoser control. Is there any anlternate in web application ?
I've been using WebBrowser.DrawtoBitmap() in my asp.net page running in separate STA thread to capture web pages as an image. But I found that I'm getting blank images for few sites consistently. I'm aware that the method is not 'officially' supported but it would be nice if someone can provide me any reason or a work around for these blank images issue.
In my windows application I'm loading more than 100 urls in my web browser control one by one in a for loop and need to print them programatically after each URL gets loaded . But, I keep getting the Javascript error for so many URLs. I'm not sure why this error keep coming.
I have a web form called default.aspx which has a form with user information. In addition to this, I have an iFrame on the same page that displays a page Secondary-Form.aspx that has a few additional dynamic data fields. I need to do two things.
1. I need to pass the parent form data in real time to the iFrame page to refresh its content and modify it's fields accordingly. Example: If the user submits their Vehicle Choice as Car on parent form, the form item in iFrame will display a radio button that says Honda, and if the user submits their Vehicle Choice as MotorCycle in the parent page, the iFrame will display Harley Davidson as the radio button choice
2. The submit button is on the parent page. I want both pieces of this information (from the parent page, as well as iFrame selection) to be passed to a server side ASPX page to process this information.the default.aspx and Secondary-Form.aspx files are located on different domains.
I am creating a Payment request form that my customers are going to fill out and submit so they get paid I would classifi it as an invoice. Does any one have any examples or point me to a good place to read about creating this type of form and the database tables to support the application?
The form will basically have some fields they will fill in for the header then in the related stuf come charge amounts with there types aka partnumbers of sorts and also the ablity to put in there own types / aka partnumbers and there amounts. I wont be housing any amounts they will supply all the information of payment amounts and types.
I have a web form where I define an array of type struct and I redirected it in the <script runat="server"> section of the second web form. But when I use that array below, in the <script type="text/javascript"> section in the html code of the same web form an error occured in the for cycle saying that the array (Array1) is undefined, and also the counter which I also defined in <script runat="server"> section.
I have this code in the <script runat="server"> section of the second web form:
public struct Point1 { public float lat; public float long1; } protected void Page_Load(object sender, EventArgs e) { //Retreive from session Point1[] Array1 = Session["s1"] as Point1[]; //Run a Foreach loop int nCnt = 0; foreach (Point1 p1 in Array1) { float x1 = p1.lat; float y1 = p1.long1; nCnt++; } } and in the <script type="text/javascript"> section I have: var for (var i = 0; i < nCnt; i++) { lineString.getCoordinates().pushLatLngAlt(Array1[i][0], Array1[i][1],0); } lineString = ge.createLineString(''); lineStringPlacemark.setGeometry(lineString);
i need a pop up form in asp.net 3.5 like by clicking a button a small pop up form should appear with some controls after entering data that form should disappear and that values should reflect on main form.
I need to develop web application. In my application  i have transaction form. Like sales invoice contains 2 tables,header table and detail table. In my web form i should have gridview, in that gridview user should enter data's and save it to the detail table.
Previously form id in child pages was aspnetform,suddenly now the id has changed to form1, now the problem is there are lots of script used with reference to id aspnetform and they are giving error. So i want to change or override the form1 name to aspnetform to make it work again
i friends i am having two forms say form a and formb and having two panels in formb and i want to show this panels from forma based on some condition and the code which i am using is
Dim capfrmobj As New CaptureForm capfrmobj.panelvf.Visible = True capfrmobj.pnlc.Visible = False capfrmobj.pnlnc.Visible = False
the above code only converts controls in dvtext (div) like label name and textboxname to pdf. after entering values into textboxes. it is not convert them to pdf. it only converts control names.
I want to convert my current asp.net page which will be running, to PDF when i click a button present on the page. I have buttons textboxes and text on the page. itextsharp.dll is not showing textboxs and buttons on the page its only showing plain html text.. what should i do?
