I am using visual basic 2008
I want to fill out forms, and I dont want to submit a POST url.
Instead, I need to access directly the DOM object, and somehow click or interact it programmatically.
should I use WebBrowser class ?
Can you show a sample code where text is entered into an input box, and the submit button is clicked ? ex) google.com
I'm instantiating a WebBrowser object and programmatically clicking a button to navigate. Is there a way (property, method, or voodoo ritual) for me to check the browser after it lands on the new page to see 1) the form method that was used and 2) the post data?
View 3 RepliesAn unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll it also says make sure you do not have infinate loop or infinate recursion il give all code in order that they are executed in Check the chechbox and it disables all irelevent stuff and populates the combobox
Private Sub CheckBox_Spray_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox_Spray.CheckedChanged
If Me.CheckBox_Spray.Checked = True Then
[code]....
Is it possible to send HTTP POST with some form data with System.Net.WebClient?If not, is there another library like WebClient that can do HTTP POST? I know I can use System.Net.HttpWebRequest, but I'm looking for something that is not as verbose.
Hopefully it will look like this:
Using client As New TheHTTPLib
client.FormData("parm1") = "somevalue"
[code].....
vbnet
Public Class zWrapper
#Region " Variable Declaration "
Private _AllowRedirects = True, _UseGZIP As Boolean = True
[Code]....
It works fine for GET requests, but when I try a POST, it errors: Quote:
A first chance exception of type 'System.NullReferenceException' occurred in WindowsApplication1.exe
Request Error: Object reference not set to an instance of an object.
I have a ASP.Net IIS standard forms authentication and i would like to log into it from my application.I used wireshark to determine the form because i only have [code]
View 6 RepliesI am trying to programmatically post to a textbox on a web form in IE - I have tried sendkeys - but I dont find them reliable or consistent - The code below is perfect - but only seems to work in a webbrowser control. How do I (click a button/select a radiobutton) send 'hello world' to a textbox on a webform in IE? By the way I would be happy to use the webbrowser control (so the code below would work) - but the webpage (which is not the one in the code below) runs locally on my machine (I dont have any control over it) and does not seem to work within a webbrowser control. PS go easy on me - I'm a Newbie/Thick Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
i have a program with multiple forms (OS) but only the main One appears on the taskbar how can i make all the forms show on the taskbar.
View 12 RepliesI have the code which checks if there is a selected tab
Private Function GetBrowser() As WebBrowser
If TabControl1.SelectedTab IsNot Nothing Then
For Each c As Control In TabControl1.SelectedTab.Controls
If TypeOf (c) Is WebBrowser Then
Return c
[Code]...
I have a panel with some controls in it (several textboxes, a slider, 2 buttons, and a small groupbox).. When I click a button, I want all of the textboxes within the panel to be readonly... So I have this code: [code] When I run it though, I get the following error:Unable to cast object of type 'System.Windows.Forms.Button' to type 'System.Windows.Forms.TextBox'.If I remove a button, it moves on to give me the same error but for a label..
View 4 RepliesWith the following imported namespaces in my project :
Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..
[code].....
I am developing a VB.NET program to search for text in a specified column from a Datagrid. I am almost finished implementing this following the MS tutorial at:[url]But now I have just one compilation error:
[code]...
Also, I'm not sure if it is good to be declaring these variables new like this since I believe I already call them new elsewhere in my code.
I've been given an assignment in school to complete and I've encountered several problems. I'm suppose to design a form for patients to fill in whenever they are not registered in the system. The GUI is done already but now the problem is that I'm "not able" to link the "Next" Button which can found at the bottom right of the 1st page to Patient's Data / Preblock Data tab to the Epidural tab.there is only one page/form done, the rest all falls in the same page/form but just in different tabs only.
View 3 Replieshow to fill these forms...project included...
View 2 RepliesMy next project is this:
I have a customer service center where each person must fill out the same data on 3 different web forms for each phone call. All 3 browser windows are open at the same time. (we are forced to use IE at this time)
The fields on each form are the same, but may be in a different order or called something different, but the data is ultimately the same.
Submitting to these web pages through POST is NOT an option. It must be done in macro-like style.
The hard part about this for is getting VB to focus each window one-at-a-time and then filling in the form values.
How can this be done? After focusing windows, is there a way to get VB to fill in each form field?
I'm in the process of adding EMR (Electronic Medical records) to my app. We have many PDF files that where created in Adobe LiveCycle and Acrobat Pro. Not sure if this is possible, but what I'd like to do is open a PDF file within my app and display it for the user to fillin the PDF form. Once PDF is filled in, I'd like to be notified (user clicks submit) when user is done, then get data out of PDF and save it to database. Or be able to fill in a PDF automatically and then display it to the user for editing. I know there are many tools out there to create/edit pdf files. The Acrobat SDK also includes a PDF viewer control, but the problem with this control is there is no way (I've found) to also edit the file through my program because the control don't expose the AcroForm class through the control. BTW, it this can be done PLEASE let me know how. Also note that most of these are dynamic PDF files (created in LiveCycle) and some of the third party tools don't provide support for these files.
I don't care if Acrobat reader is required to be installed on the user computer, I just need to be able to get some type of notification that the user is done filling in the forms. It might have been easier to just create a winform and with all required fields, but a lot of our users are not computer savy, and have been using the paper version of the PDF files for a while. I need to make it as easy as possible for them to jump in and start using the program, hince embedding the PDF into my app.
I'm attempting to make an application which, upon entry of Amount to spend, Vendor, Employee, etc., a Purchase Order number is returned. My thought is that I'll simply let SQL pick the PO Number by setting it as an identity field. What I'm curious about, though, is how to directly query the database as opposed to using DataGridView or bound controls.Note that I have the following setup at this point.
DataSet --> BindingSource --> TableAdapterManager --> TableAdapter --> DataGridView
Where along that list would I inject my queries and how would I go about doing it?
Private Sub wb_Scrape(ByVal sender As System.Object, ByVal e As
[Code]...
Win7 64 bit; fully patched VS2008 targeting FW2.0; VB.Net; running in Debug Mode (not tested in Release mode)I have a resonably complex app which I am refactoring a bit. As part of that, I relocated some code from a subroutine into a Click Event Handler. The Event Handler will, late in the handler, call the, reduced in function, subroutine. The point of this is thatNow when I click the button associated with the modified Handler I get:A first chance exception of type 'System.AccessViolationException' occurred in System.Windows.Forms.dll<br />With Error System.AccessViolationException Attempted to read or write protected memory.This is often an indication that other memory is corrupt.
at MusicManager2009.frmMain2.cmdLoadAlbum_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
[code].....
All functions of the app, except those that start from the buttonclick in question, work as before in the problem version.The problem persists after rebuilding the entire solution, after restarting VS, and after rebooting the PC.
When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
[code]....
I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
[code]....
I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
[code].....
A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll It displays in my Immediate Window when i run my program, I'm using a text reader to read a number of XML files using background worker...most the time it stops so something is wrong but sometimes it works fine.
View 2 RepliesI am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
[code].....
I want to cast a system.string to system.windows.forms.form
View 2 RepliesVB 2008, DataGridView,DataGridView1_CellLeave(sender, New System.EventArgs)
"Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.DataGridViewCellEventArgs'."
What is the Correct String for "New System.EventsArgs"
Anybody there is to help me out.
I'm trying to fill in web forms automatically by using the vb.net webbrowser. I'm using code like the following to fill in the name:
Dim elementsInput As HtmlElementCollection = wb1.Document.GetElementsByTagName("INPUT")
For Each element As HtmlElement In elementsInput
[Code]...
The problem is this solution is not global. It will only work on text boxes with the name "OWNER_NAME". Writing out hundreds of variations for every text input there might be for name would not be very smart. There must be an easier solution?
how I can write a program that will work on ANY web page, no matter what the names of the text inputs are?
I have a listview control that contains 2 items, ProdCode and ProdName. When the user clicks on the Prodcode, I would like the Prodcode to be entered into a field on the form. at the same time, the ProdName should populate the ProdName field on the form. Below is the code to get the data for the ListView.
Dim objListViewItem As ListViewItem
'Initialise a new instance of the data access base class
Using objData As New DABase
[Code].....
I have a binding source, a Data Table, a Table Adapter and a combo box. How to fill a combo box using these parts? When I fget done I am Showing System.Data.... Example.JPG
[Code]...
I am newbie in VB.net so maybe what I will ask is very simple.I want to create an application in which when ser clicks the button the first time a picture be shown on picturebox1user clicks the button the second time a picture be shown on picturebox2user clicks the button the third time both pictureboxes would be emptyuser clicks the button the fourth time a picture be shown on picturebox1
So I thought to create this boxes (instead of filling them cause I do not know how to fill them dynamically)How can I delete them dynamically when the user clicks the button the third time?