Custom Control Disappears From Object Browser?
Jun 17, 2012
My question is on how custom controls should be updated.
I downloaded this owner drawn custom control, which I built, then copied the DLL to the Debug folder of the project and loaded it into the toolbox from there.
I decided to use this button on another project. I was mildly surprised to see the control was still in the toolbox but it seemed to work just fine. I decided to change this custom button's behavior. The button in the toolbox referenced the old version number. So I deleted it and loaded the newly rebuilt DLL.
Now come the problems. The first application--the one where the DLL was added to the toolbox from--still runs okay, but the second application is throwing errors, saying, Type 'CButtonLib.CButton' is not defined. When I add the button to a form, it appears okay. I can change its properties and it shows up in the code windows and in the object browser. But as soon as I try to run it and it throws the errors, it no longer appears in the object browser. References in the code window lose their intellisense.
Things I've tried include:
Copying the DLL to the project's debug and release folders and loading them into the toolbox from there. Removing it from the toolbox altogether and just adding a reference then copying and pasting a button directly from the first project. Copying in a form with a CButton on it from the first project. Scouring the internet for answers Swearing at the computer.
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Feb 10, 2012
I have created a custom user control (JCUserControl), and I am using it in the Main Window. And my Main Window has no codebehind. I have this in the JCUserControl codebehind:
Private Sub ImmediateRadioButton_Checked(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles ImmediateRadioButton.Checked
SomeTextBox.IsEnabled = False
End Sub
When I run it, it fails with the NullReferenceException. If I comment out the SomeTextBox.IsEnabled = false, it runs without any problems.
Edit: Found out that I could just check if the radio buttons are loaded before doing whatever I want to do.
Private Sub ImmediateRadioButton_Checked(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles ImmediateRadioButton.Checked
If ImmediateRadioButton.IsLoaded Then
SomeTextBox.IsEnabled = False
End If
End Sub
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May 29, 2010
Im also busy with a tabbed webbrowser. Now almost everything works great, exept when I open a new tab.When I open a new tab my webbrowser on the first tab disappears, and on the second tab it also wont show.full code so far:
Public Class Form1
Dim newtabpage As New TabPage
Dim WithEvents wb As WebBrowser[code]....
open a new tab and keep the browsers?
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Jun 15, 2011
I was wondering if there is a library or code snippet available for .NET (or that I can translate to .NET) to display animated PNG files (on the Graphics object, or even in a custom control)?
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Oct 20, 2009
I've just finished making a web browser suited for my personal use, but when I click on a new link or something it opens a new window in Internet Explorer - which gets extremely anoying.. Is there a way to make all links open up in a custom browser?
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Feb 12, 2012
I coded a web browser over the course of a year called Nova - very advanced with tabbed browsing, bookmarks, homepage, history, etc etc etc etc. I could go on all day about how advanced it is. But.. there is one flaw. You cannot make it the default browser; I don't know the code!I already know the CommandLineArgs stuff so it actually opens the HTML file rather than just opening the program; in fact, I already can make files open with Nova completely. It's just the other stuff - you know, when a website is to be opened from a help file or something, it opens with Nova, Windows recognises it as the default browser, stuff like that.
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Feb 11, 2012
Other topics around the Internet are all unfinished topics, so I'll ask this myself. How do I set a self-made browser as the default browser? I know it has something to do with accessing the registry and checking what the value is in some places, but I'm not quite sure. Now, I've made this browser called Nova;
very well coded and advanced, tabbed browsing, bookmarks, homepage, history, can change default search provider, uses Gecko as its engine so it's not just an IE shell, etc. It's been developed over the past year and will still continue to be developed. I'm almost ready to release the first version - but I just need this annoyance solved.
[Code]....
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Dec 13, 2011
Cookies to be stored in folder and on close delete the cookies The ability to watch youtube vids, view images, and play js/flash games good security, no ads?
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Jul 17, 2009
This should be a simple problem to fix, as it uses the same way I fixed my last problem with FooControl (below).
Basically, I want to add a derived validator I made to this composite control. It works fine but on postback it just disappears in the markup, making me think it's lost its ViewState.
I am probably doing something wrong with instantiating it, but I've tried setting only the ControlToValidate, moving things around, and nothing works.
I've provided some surrounding code to see what's working and then what's not.
Private FooControl As IFooControl
Private Validator As MyValidator
Protected Overrides Sub CreateChildControls()
[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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Dec 1, 2010
We have a huge windows application with poor exception handling. The application throw object reference error from lot of places and the system error message is showing to users as it is using message boxes.
I am looking for a simple solution which can be used to replace this message to something user friendly for the entire application
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Dec 29, 2011
how to specify a custom icon for display in the toolbox window when you create your own custom control? Something other than the dreaded "gearbox" icon.
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Apr 5, 2012
I have a JSON object that looks like this.
{
"Errors":{
"err1":[
//* Array of err1 objects
[code]....
PD: I'm currently using Newtonsoft's JSON.Net library.
Public Sub New(ByVal jsonText As String)
Dim jObject As JObject = jObject.Parse(jsonText )
Dim jErrors As JToken = jObject("Errors")
Dim jS = New JsonSerializer()
[code]....
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Dec 6, 2009
I've been working over the past year or so to make a very advanced web browser in visual basic, with features like speed dial, password remembering, popup handlers, phishing filters, advert blockers, etc. The final step of the way for me is to add in a toolbar feature. I don't want the source code - that would be asking far to much, but if someone has found any code which might point me in the right direction it would be much appreciated. My code is allready around 15000 lines?
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Oct 20, 2009
I have made a few siple web browser, using a web browser control, a texbox, and a few buttons.I need to learn how to:Make a download handler(like FireFox)Make a custom web browser control(if possible)Use EXTERNAL .EXE's(like toolbars)Make an installer using a background worker, and System.
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May 9, 2011
I've developed a Tabbed Web Browser, but i have some problems with it.The first one is opening the link(for instance from google.com search) in the new window of internet explorer. But it must be opened in the same tab.I would also like to open the link in the new tab by clicking left mouse button on it.The source code and the project is in the attachments.
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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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Jun 24, 2009
I'm creating a web browser but i can't seem to add the Favorites function to it.can someone help me, like tell me what Functions i can use or any suggestions?I don't have any code though, because i am clueless about how to add the favorites function to the my web browser.
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Jul 11, 2011
I have an ASPX Custom Control which is supposed to load it's properties into an internal collection (defined with PersistenceMode.InnerProperty). Here's the ASPX
<cc:CustomControl runat="server">
<Queries>
<cc:QueryTypeOne ... />
[code]...
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Jan 11, 2010
I am using custom textboxes and I need to be able to set the Text on txb1 based on the Text of txb2. I have simplied my code to the following:
Public Class customtextbox
Inherits TextBox
Public Event ControlReset()
[Code]....
So, when txb1 looses focus, if its Text is "fried", then it sets off txb2's ProcessAlert function. I had tried to change the value of txb2 Text in ProcessAlert function, but didnt work, so I tried to get it to raise an event instead, which then tries to set the Text property. However I still cant set txb2's Text property. The Text property seems to be set for the duration of the "life" of the Event handler. When I step through the forms controls within the Event handler, the changed Text value is there, but not outside of the Event handler.
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Feb 5, 2009
I'm working on an application with tabbed browser and i can't figure out who to make edit tabs browsers right click menu ,i know that if I'm working with the webbrowser control i can create a for example..[code]
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Apr 5, 2009
I'm in the process of making a Web Browser, and after having mastered most major functions, I would like to create custom error pages. Like the "This page cannot be displayed" IE Page, but with my own logos and text.
How would I go about redirecting this? The current one is at System.Windows.Forms.HtmlDocument
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May 14, 2009
is it possible to run java while using a custom made web browser?what i mean by run java is when you play a game that is an applet, a jar file.Like runescape. When I try playing runescape with my browser, it dosen't let me, and says i don't have java. (the browser I made in VB)
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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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Jul 29, 2009
I've created my own ascx control with button inside it. Now I'm using this control inside other control. (In my case it is a webpart). What I would like to do is program button.click logic from my custom control inside webpart
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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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Oct 21, 2009
I need to get all the object properties of a web browser. in this web page how do i retireve all the proeprties, like the text box name, html id, button name and so on.Also help me with retrieveing all the html ids of the browser. the html ids could be seen in the source page. but how do i get those ids.
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Oct 23, 2011
I have VB 2010 Express installed & are working through some Labs.Also I'm trying to run my first code into an external software package acad.exe. I'm supposed to be able to launch this via right click properties underproject name then on debug tab, again can't find ?
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Jul 16, 2011
Can someone tell me what happened to the object browser in visual basic 2010?
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Jul 17, 2011
Can a custom control NEW Sub be the only one that executes when Inheriting from an existing control please?I am Inheriting from TabControl and I do not want the base New Sub called, is this possible?In other words, I do not want TabPage1 and TabPage2 to be added.A Form has an Activated Sub which runs once a Form is activated.It is a pity that Microsoft have not got such a method in the baseControl Class otherwise I could have used it within a custom TabControl.
Public Class Form1
Private Sub Form1_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
End Sub
[code]....
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