I'm having the same problem using VB2008 with dataset designers and the data grid view. I'm constantly closing Visual Studio and reopening it to get the form to view again. Is there any fix for this problem?

I find it incredible that Microsoft has not fixed such an annoyinglycommon bug. It must be some sort of bug or why would all of us be getting it?

Hi.
you need to close the form, rebuild the project, and then open the form again.

Thanks for replying. Do you know why this is necessary? It seems like I'm constantly closing the form and exiting out of Visual Studio. It's a hassle.

Hi Julie Missick,

Does this happen to all of your project? If you create a new Project and using the DataSet designers and DataGridView, do you need to reopen it very often?

Many factors can caused this problem. Such as the addins of Visual Studio, the crashed project settings and so on. Hope you can provide more information on your case.

Best regards,
Bruce Zhou

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Hi Bruce,

Thanks for replying. This problem seems to occur when the data sets have more than 3 or 4 tables and when I try to remove an item from the form that doesn't work properly and I've decided to try something else.

For example, right now I'm working with a data set that contained8 tables. I had completed the form and had found that one of the tables was displaying duplicate entries in a combo box ina DataGridView. I decided to try a different way to retrieve the entriesfor the combo box for the user to select from.

First, I deleted all relevant code that referred to the table from the Load event and subroutines. I then deleted the Binding Source and the Table Adapter from the tray on the bottom of the form. I then deleted the table from the Data Set's .xsd file. Then I saved the project. When I tried to view the form, I got the above message.

It seems that auto code generator does not always regenerate the code properly in the Form.Designer. Some times I can save the project and close Visual Studio, and then when I reopen it the form is displayed as it should. Other times, I loose the form and the many hours of work it took to build the form and I literally have to delete the form from the project and start completely over.

I haven't been able to find a way to retrieve the form before the changes from Source Safe either.

Hi Julie,

Did you delete the code in the *.designer.cs? The designer generates code for the component in the InitializeComponent method which is defined in *.designer.cs. Bad references in the InitializeComponent method can cause the designer can't show the design surface correctly and display an error instead. You take a look at the error the designer gives and the call stack. Probably you will get to know where the problem is located.

You can also post the error information including the call stack here, and let us see where the problem may locate.

Best regards,
Bruce Zhou

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Hi Bruce,

Unfortunately, when this problem occurs, I get a message that states that there is not call stack. I've just started using .NET with the new 2008 Visual Studio, so my knowledge is not what I would like to be.

If this were VB 6, I could code it in my sleep. But, I must admit that I don't know what a*.designer.cs file is. All I see is a *.designer.vb file. Can you help clarify this?

Hi Julie,

I'm sorry. Just I forgot to mention *.designer.cs is for C# project. If you are using VB.NET, then it should be *.designer.vb.

Best regards,
Bruce Zhou

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Hi Julie Missick,

How's your problem now? If you still have problems, please feel free to let me know.

Best regards,
Bruce Zhou

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Has MS or anyone else found a resolution to this problem: "The Designer loader did not provide a root component..."

I am experiencing the issue as well (for some time now) in VS 2008 /SP1. I am using the Syncfusion (SF) framework.

If there is a fix I'd appreciate someone posting it, for this is quite annoying and causing numerous issues.

When I get this error,one of the responses is that my SF TabControlAdv arbitrarily re-orders my tab pages. And it appears to be consistent with my main form, designer.cs and mainform.cs file getting out of sync when a change is made to the code behind such as deleting a method, and then attempting to go back to the main form. That's when it blows up.

Todd