Reply With Quote May 14th, 2012,01:39 PM #10 alexkn View Profile View Forum Posts Member Join Date May 2011 Location Russia, N.Novgorod Posts 35 Re: Help !!! "value cannot be null" Public Class form1 with Partial Class form1 2. As far as I am aware, this bug appeared out of the blue. Here is the call stack of my particular error: at System.String.IndexOf(String value, Int32 startIndex, Int32 count, StringComparison comparisonType) at System.String.Contains(String value) at Final_test.Form1.ScanScanner(String dir) in C:\Users\Admin\Documents\Visual Studio 2010\Projects\Final test\Final test\Form1.vb:line 155 http://ibuildsystem.com/value-cannot/value-cannot-be-null-parameter-name-objecttype-vb-net.php
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 This issue doesn't get reproduced if there is 2 level of inheritance is implemented. You need to follow these steps to remove the error: 1. Switching it to proper case to match the actual control fixed it.
To start viewing messages, select the forum that you want to visit from the selection below. Make a suggestion Dev centers Windows Office Visual Studio Microsoft Azure More... Check the upper/lower case on your event names!
Do you need your password? If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.Would you like to participate? Parameter name: ms_no Value cannot be null. Visual Basic Value Cannot Be Null A build of the project will however spot the problem. - Using inherited forms: I declared a protected WithEvents variable on the base form: Public Class Form1 Protected WithEvents bmb As
at System.ComponentModel.TypeDescriptor.TypeDescriptionNode.GetRuntimeType(Type objectType) at System.ComponentModel.TypeDescriptionProvider.GetRuntimeType(Type reflectionType) at Microsoft.VisualStudio.Design.MultiTargetingContextProvider.GetRuntimeType(Type objectType) at Microsoft.VisualStudio.Design.Serialization.CodeDom.HandlesClauseManager.GetFieldType(String fieldName, Type documentBaseType) at Microsoft.VisualStudio.Design.Serialization.CodeDom.HandlesClauseManager.GetReferencedComponentType( String componentName, CodeTypeDeclaration codeTypeDecl, ITypeResolutionService loader, IDictionary& cache) at Microsoft.VisualStudio.Design.Serialization.CodeDom.HandlesClauseManager.ParseHandlesClauses(CodeTyp eDeclaration codeTypeDecl, Boolean updateCache) at Visual Studio Value Cannot Be Null. Parameter Name Solutiondirectory Best wishes, Steve the Telerik team Instantly find answers to your questions on the new Telerik Support Portal. Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items. All Rights Reserved.
However, there are some Handles clauses that get removed from the event handlers of one of the controls on the form. Value Cannot Be Null Parameter Name Content Type Open the project 2. I'm telling you, this is string, looking at exception text and the call. --SA Rate this: Please Sign up or sign in to vote. Thanks Telerik Team.
Rude would be to have called the poster names, like you did. Is it possible for a diesel engine computer to detect (and prevent) a runaway condition? Visual Studio Value Cannot Be Null Parameter Name Path1 To understand recursion, you must first understand recursion. Visual Studio Value Cannot Be Null Parameter Name Project I also attached a video (drag and drop it over your browser to play it)which demonstrates the approach.
Code: Public Class Form1 Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) End Sub Private Sub radOnSurface_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) COPsecim() End Sub Private Sub More about the author If we do not hear back from you within 7 days, we will close this issue.Thanks again for your efforts and we look forward to hearing from you.Microsoft Visual Studio Connect So, I then went back into the editor and selected all the code lines that I previously commented out and then used the Ctrl-K Ctrl-U editor shortcut to uncomment the lines. My usual boring signature: Nothing Reply With Quote Feb 14th, 2013,11:58 AM #20 DBithead View Profile View Forum Posts New Member Join Date Feb 2013 Posts 3 Re: Help !!! "value Visual Studio 2015 Value Cannot Be Null Parameter Name Path1
So, I then went back into the editor and selected all the code lines that I previously commented out and then used the Ctrl-K Ctrl-U editor shortcut to uncomment the lines. But if this is your litle clubhouse and you do not want anyone else posting here I will more than happily refrain. UPDATE: I had to instead add the handler with AddHandler statement. check my blog Parameter name: instance Cancel The title field is required!
If this issue is urgent, please contact support directly(http://support.microsoft.com) Sign in to post a workaround. Visual Studio Value Cannot Be Null Parameter Name Compositionservice Posted by Jose M. But if this is your litle clubhouse and you do not want anyone else posting here I will more than happily refrain.
Someone peeled an American flag sticker off of my truck. My boss asks me to stop writing small functions and do everything in the same loop Is it possible to check where an alias was defined? I had discovered it on my own 6 months ago through lots of pain and trial and error.The real resolution is that VS2015 now has a new feature/option in the Xaml Value Cannot Be Null Parameter Name Moniker The answer of Solaris is interesting for me.
I'm getting this error now. I then rebuilt the solution and of course I got a slew of build errors. I noticed that there are other posts that report a similar problem that results in Handles clauses being removed from code. I tried adding the Handles clauses back, but the next time news I hope this information helps.
There is a service pack release. Now you're saying "all the event handlers must use the Handles keyword". The error is caused when have installed one version of controls in GAC and the project references another version of the dlls. Should you find any bugs in the future, please feel free to let us know.
It should open.4. Now onwards the designr should open without any error. Parameter name: objectType” when opening a VB.NET Windows Forms in designer up vote 1 down vote favorite I have Windows Forms App in VB.NET it runs fine, I added some code I voted 4. --SA Dale Seeley 5-Oct-11 17:11pm Thank you guys very much I appricate this allot I have changed the code as mehdi has said and even thoe
The name of the class and the fact that the project was written in Visual Basic rang a bell, so I started to comment out all the ‘handles eventname’ clauses on deleted it and typed it back in)Then closed code and form design saving on the way.This fixed the problem. Bug? But I could not solve any of the forms that you raise.
One thing, though: If you want to complain, perhaps you could choose a thread that was active this year. Open the application and rebuild it.