Web Browser Control - Force No Load For Cache?
May 1, 2008
I'm working with the webbrowser control because I've had so many problems with using a non wrapped browser.
What I'm doing is filling out web forms, pressing submit, filling more information, etc etc. The problem is that when I press the submit but inside the code, the webbrowser doesn't actually reload the page so the second step of form filling can never happen.
From what I've read I think this is because it's simply loading from cache. Is there someway to stop this from happening such that when the submit button is pushed, and the server sends the new page, the webbrowser reloads it automatically?
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May 7, 2009
I have an asp.net website that is using update panels on the page that i cant get to reload from the server. I have this for the disable page cache on the master page.
'Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1))
'Response.Cache.SetValidUntilExpires(False)
'Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches)
'Response.Cache.SetCacheability(HttpCacheability.NoCache)
'Response.Cache.SetNoStore()
When I click the browser back button to go back to the page it says the page has expired. the other pages on my web site work and call the page load, the only solution i found but cant use is to wrp the whole page in an update panel, but i cant do this becuase i have a report viewer on the page that does not work with ajax.
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Sep 11, 2009
I am trying to load a webpage into a web browser control that has a login form on it. What I am wondering is how I would go about changing the username/password input values on that page thru program code. The html element ids are "username" and "password" respectively. I am using vb 2008. I have tried searching but am getting mixed results with asp.net which is not what I want.
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Jan 27, 2010
I am currently developing a advanced web browser in Visual Studio 2008. I was reading information about a browser i currently use, it said that the browser goes faster thanks to a "advanced cache algorithm". I was wondering if it was possible to implement this into my web browser, and if so how would i do so? I am using Visual Studio 2008 writing in .Net.
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Apr 15, 2010
I have a web browser named Webbrowser1 and I wish to have it clear cookies when I click a button.
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Nov 30, 2011
What we want to do is save an entire control into Cache and recommit the properties on page load, including data items. But we'd like the controls to exist already in the page.
[Code]...
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Feb 19, 2009
We have a browser in a panel that gets resized programatically. Unfortunately when the panel is larger or smaller than the nominal size of the web page visited by the browser, we either get a clipped image, or a lot of blank area. We would like to force the browser page to stretch to fill the available space when we dock the browser in the panel.
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Aug 3, 2011
I have a form intended to generate serial number and this serial number will be distributed to the other forms. I use to pass the serial number to the other forms this way:
[Code]...
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Apr 9, 2011
I have a form intended to generate serial number and this serial number will be distributed to the other forms. I use to pass the serial number to the other forms this way:
if frm1.visible = true then frm1.txtserial.text = frmserial.txtgenserial.text
if frm2.visible = true then frm2.txtserial.text = frmserial.txtgenserial.text
if frm3.visible = true then frm3.txtserial.text = frmserial.txtgenserial.text
and so on....I want to have a method that will ease the method above. Is there a way to declare a txtgenserial textbox globally and the other forms will just refer to it?ex. Public genserial(tb as textbox)' that example is only a demo to what I wanted to get, this declaration is absolutely incorrect.
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Jul 11, 2009
I have the following code in my config.vb file in app folder and almost all of my pages use this code for permormance issues i need to have it cached for exp use cache.insert to cache each property How should i use caching?
BR>Public Class Config
Private _physicalPath As String
Public Property physicalPath() As String
[CODE]..........................
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Apr 29, 2007
Im using VB2005 express and the app im creating uses the web browser control.Basically I want to know if its possible to make the web browser control connect through a different ip address and port from your default web browser.
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Jun 11, 2010
I ran into a little problem where my thread(s) tries to access a control that may not be created yet. How can I check for this or is there a way to force the creation of the control(s) first and then go on or any other solution?
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Oct 25, 2010
Normally I can get the webbrowser control in my vb.net application to scroll using the following code after the webpage loads into the webbrowser control: WebBrowserPageView.Document.Window.ScrollTo(50, 50)
But when the webpage uses the dom to update the page after the page loads, the scroll bars will scroll for half a moment to 50,50 but then snap back to 0,0.
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Dec 27, 2008
I have a webbrowser control built into a windows form of my application and I was curious if there was a way that any links that are clicked on in the webbrowser control will be forced to open in a new browser window?
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May 9, 2012
I have a data point with a y-value of 1 being plotted, the MS Chart control will use increments of 0.2 on the y-axis. How can I force it to not use a decimal, keeping in mind I will have values of >100 so I can't just force an increment of 1 on the y-axis?
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Nov 16, 2010
I'm trying to execute different code depending on the button clicked (button 4 or 5) on Form1, but when I click on button5 to activitae the code on the Form2's Load event everything is Ok, but when I click the back button to return to Form 1 and click on the Button4 to activate the code on the Form2's Load event again, it doesn't active the Form's Load event, is there a way to form the form load event every time I access it from Form1? [code]
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Nov 24, 2011
I am just wondering how to force the creation of a handle of a control before the form that it is contained on is loaded... I have tried:
[Code]...
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Sep 23, 2009
i just want to ask to all how to create web browser without using the web browser control in visual basic 2008 express edition.
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Sep 8, 2011
Using the walkthrough from [URL], I implemented a DatagridView in virtual mode, totally unbound, in VB 10 Express (we are talking WinForms).
I understand that CommitEdit (DataGridViewDataErrorContexts.Commit) commits the current cell's contents to the data cache.
The example uses row-level commit, i.e. it pushes the values into a row buffer until the current row is left. Only then the row is added to (or updated in) the data store. That's exactly what I do, too.
Question -- how can I commit the current row programmatically without leaving it? (I want to commit the whole row, not just the current cell.)
If the user leaves the row, there is a RowValidating, RowValidated, RowEnter event sequence where the datastore update is taken care of. So one idea (currently my only one) was to simply re-set CurrentCell to Nothing, for example.
But I cannot just set the DataGridView's CurrentCell property to Nothing (or any cell outside of the current row) since I want to commit from within an event handler of a custom edit control created by a custom column, and I see an System.InvalidOperationException exception when setting CurrentCell there.
In fact, it is a tiny button right to a combo box, i.e. I create a DataGridViewComboBoxCell descendant which is a DataGridViewComboBoxColumn descendant's edit control. My special ComboBox cell adds a tiny button which should commit the current row. Unfortunately, that button's _Click event handler cannot change CurrentCell since DetachEditingControl throws the exception then.
Obviously, I must delay the CurrentCell re-assignment until the whole _Click event has been processed. Or what? How would I do that -- register a custom Windows message, SendMessage that one to me, and override the windows procedure of the form so it re-sets CurrentCell when this message is received? (Hello?)
There should be a rather easy way to let DataGridView commit all changes by firing the events that I handle to perform the datastore update, no?
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Sep 14, 2008
I currently have a vb browser and cant for the life of me find out how to load a "favorites list" the furthest I've got is add text to link label and save text in a location. I also cant find an if statement stating that if a label has type in it you move to next label.
Code:
Private Sub Favourites_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim savef As New System.IO.StreamWriter("c:Program FilesAmaza Browserfavourite links.txt")
[Code] .....
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Feb 19, 2009
I want to load a page in web browser and wnat to search for particular field, as soon as i get that field i want to stop navigation of that page.. how can i achieve it?
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Dec 19, 2009
I am trying to use the Web Browser control in my vb .net user control. I am using VS 2008. Finally, I will be calling my assembly (.dll) from a web page. I wanted to display the usercontrol with the web browser control inside this web page. The problem is I cannot proceed since the Web browser control cannot be called from a partially trusted assembly. Using VS 2008 I have created a strong name for my class, also added the <Assembly: AllowPartiallyTrustedCallers()> to the AssemblyInfo. But still the web browser control cannot be seen in my web page. Do you how I can make my assembly fully trusted so that it can access web browser control? If you have used web browser control, can you confirm if this step is really required?!
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Dec 4, 2009
How would I load a .html file into a web-browser control?
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Apr 20, 2010
i have a program and i want it to visit a pre-set list of websites which will be in a richtextbox and i want it to visit all the sites in order BUT heres my problem that idk how to fix it will only load the last page of the list it will not load any other ones. Heres my code for it to visit the websites
For i = 0 To RichTextBox1.Lines.Count - 1
WebBrowser1.Navigate(RichTextBox1.Lines(i))
[code]....
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Sep 3, 2009
I would like for my program to navigate via textbox1.text with multiple lines and multiple url links inside of it. I know how to make the webbrowser1.navigate via textbox1.text with multiple lines, however I want my webbrowser to navigate to each url every 1-1.5 seconds once button1 is clicked. Yes, my webbrowser1 will navigate to the specified urls via the textbox1.text (multilines) with a button click, but I need the webbrowser1 to navigate in a order sequence from top to bottom of Textbox1.text (multiplelines) every 1 second. Here is the current code that I have to navigate via multilined textbox1.text control in order sequence:
[Code]...
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Sep 24, 2009
I have made many web browsers that just navigate to a web page, I don't have any buttons or any thing like that as it is controlled via other software using shortcut keys etc.I have created a button in my other software that sends the keys strokes "Control" and "H" I can get this to navigate to a webpage by manually typing i the same page that it navigates to when the form loads, but this mean I have to type the address in twice for each browser I make. I first type the url for the browser to navigate to in the properties section in VB and this is nice and quick to type in each webpage and build quickly build a new browser for it. Currently I have to repeat that url in the browser_homebutton Private Sub, what I want to happen in the below Private Sub is that it navigates to what ever address is typed in the "URL" cell in properties of the browser. What should my "Then" statement say? [code]
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Feb 17, 2012
making verified accounts for my marketing and now I am hooked into improving as it is turning into a very good program I am just stuck with one thing which I can see being a very simple solution but I have search forum after forum and tonnes of Google searches all worded different to solve my my.It really is simple at present I use different buttons to automate different parts/pages of the account creation I am now setting it up so I click say for example a "go" button and it fills in the first page (and heres where I'm stuck waits for a specific url or even just a new url to load before continuing with the next bit of code
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Sep 13, 2009
Is it possible to use a file browser to load a connection string when the start form is loaded?
Using ofb As New OpenFileDialog
If ofb.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim cConnectionString As String = ofb.FileName
[Code]....
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Feb 12, 2009
1. I want to load pages in web browser without loading scripts and Pictures(Jpeg,gif,png).
2. When Web Page Loads my Application Stops Responding. After that it responds. In one place of my Code i have added thread.sleep(10000). is it reason for that?
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Dec 22, 2011
I am upgrading user control from vb6 to vb.net.In the vb6 application I am loading 3000 labels using a label control array.In vb.net I am doing same but it's taking too much time to load.In vb6 it's taking 1-2 seconds, but in vb.net it's taking 30-40 seconds for same work. Why does it take too much time in vb.net for same work?Code is given below, here Led is the label control array.
For l = 1 To 3000
Led.Load(ledCounter)
ColLed.Add(Led(ledCounter))
[code]....
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