Home > Value Cannot > Value Cannot Be Null. Parameter Name Objecttype Vb.net

Value Cannot Be Null. Parameter Name Objecttype Vb.net

If this issue is urgent, please contact support directly(http://support.microsoft.com) Sign in to post a workaround. I get all kinds of blue squiggly "Value cannot be null" exceptions. Some forms are opened normally, but some give the mentioned mistake. Rate the posts that helped you! check over here

Just: 1. In the end I deleted all the code in the offending forms class, having copied it first, opened up the designer and then went bact to the vb form and pasted That does require that the members observe a certain amount of decorum. The stack says its null.

I plan to try to look into whether there are any binary (non-visible) characters in the lines, but the code was entered using the VS editor so I don't expect to Your answer suggests to do the Ignore and continue MANUALLY! –Jeremy Thompson Mar 26 '15 at 23:00 Sorry, but No, No events are deleted ever, they are still triggered, The code is stored in Form1.Designer.vb (you can also click 'Show all files' in solution explorer and open this file. #define true ((rand() % 2)? JMC does tend to be a bit short with people who do such a poor job of asking a question (though it depends on the day), but that hardly justifies you

End Sub End Class This form works correctly and opens up in the designer. Privacy statement Help us improve MSDN. If it occurs at run time then you know that a value is null that isn;t allowed to be, so check which value on that line is null. I then rebuilt the solution and of course I got a slew of build errors.

not trying to rub salt in anything but i think he was talking about after the project loads and you try and run it, if there's an error it tells you Privacy Policy Site Map Support Terms of Use It turns out that there were two methods declared that had Handles clauses for the same event. As I was trying various things, I commented out all of the code in the forms class except the class declaration by selecting the code lines and then using the Ctrl-K

Form1) in the left one then you can select InitializeComponent (greyed) in the right one. Suggested Solutions Title # Comments Views Activity Cannot Load VB6 on Windows 10. In my case it says Parameter Name: "Item".When I look at a stack trace of the exception it is the actual resource dictionary name/path to be merged. That's way I posted the other answer. –Fernando Gonzalez Sanchez Oct 9 '14 at 20:36 what if you don't know the event that you need to remove the "handles"

  • Join and Comment By clicking you are agreeing to Experts Exchange's Terms of Use.
  • Evaluating Expressions | Simple POP3 Protocol Realization | Timers explained | Delegates explained | A secure login to your app sample | Numeric Textbox | Printer.Print (or I miss VB6 printing
  • Parameter name: objectType Archived Forums Visual Studio > Visual Studio Source Control and SourceSafe Question 0 Sign in to vote Hi All, This isssue has been filed in many places; I
  • Try commneting code for once so that you will get idea wht exactly is causing this error....
  • A complete environment crash.
  • Also, is it a compilation error or a run time error?
  • I used the VS compare to check for differences between the file before and after the commenting/uncommenting and found just a few differences.
  • A more detailed explanation for the resolution of this particular item may have been provided in the comments section. 13 0 Sign into vote ID 579301 Comments 12 Status Closed Workarounds
  • I for one am keen for everyone to play here, but I am also keen for them to play sensibly.
  • I'm not sure you post right fragment of code.

Parameter name: String Value cannot be null. This happens when an event handler contains a reference to a non-existing object. You might like to change labelX12 to labelX12.Text if it is a label control. If it occurs at run time then you know that a value is null that isn;t allowed to be, so check which value on that line is null.

The content you requested has been removed. check my blog Parameter name: elementID Value cannot be null. This I did.Step 3: When I clicked on the designer window, it came up with the error mentioned above.Solution: There was a handle set to a databinding object in the vb I then rebuilt the solution.

Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. Browse other questions tagged vb.net winforms visual-studio-2010 or ask your own question. For example, if you place a button on a form, create the Click event handler and then remove this button from the form.  StevieTimes | 2014-12-05 I found another cause of this content ClassLibrary3, Form3.vb inherits Form2.vb; Form3 will have Button1 of Form1 and Button2 of Form2.

As someone who answers a lot of questions here, it gets rather frustrating when I know that the person posting the question has easy access to information important to diagnosing the But if this is your litle clubhouse and you do not want anyone else posting here I will more than happily refrain. Join Now For immediate help use Live now!

Join the community of 500,000 technology professionals and ask your questions.

As far as I am aware, this bug appeared out of the blue. Please enter a workaround. Parameter name: objectType - by Larry4321 Status : Closed as Not Reproducible Not Reproducible The product team could not reproduce this item with the description and steps provided. Can anyone help me get my form back.

This is now a couple years old and should be left to die a natural death, yet somebody resurrected it to use their first post to complain about JMC being sarcastic?!?! Please give us a demo project to demonstrate this issue so that we can conduct further research.It would be greatly appreciated if you could provide us with that information as quickly Posted by Jose M. have a peek at these guys In file form1.vb (form name is Form1)?

in your fix, you say you need the handles clause removed. C# TBB updating metadata value Do we know Ford's old name? Video by: Pooja vivek This video is in connection to the article "The case of a missing mobile phone (https://www.experts-exchange.com/articles/28474/The-Case-of-a-Missing-Mobile-Phone.html)". Did it open normally?

But I still need to do it manually, because it will eventually be generated by some DTE automation code. Simply check for null. All rights reserved. Reply With Quote Jul 28th, 2010,09:59 AM #8 cicatrix View Profile View Forum Posts PowerPoster Join Date Dec 2009 Location Moscow, Russia Posts 3,654 Re: Help !!! "value cannot be null"

Reply With Quote May 24th, 2012,05:00 PM #16 DirtyHowi View Profile View Forum Posts Hyperactive Member Join Date Jul 2005 Location In A House :) Posts 291 Re: Help !!! "value Proudly published with Jekyll Theme based on Notepad by Hossain Mohd. Your Email This email is in use. Public Class form1 with Partial Class form1 2.

Check the upper/lower case on your event names!