The custom tool msdatasetgenerator failed

OleDbException' occurred in System. NullReferenceException' occurred in project1. Normally, i don't get this error while open form design. When i get this error, i close my project, and reopen. I have got 4GM ram,and when i get this error,my used ram is 2.

I am using VB. I am just trying to get the system to open a database and I get this error: A first chance exception of type 'System. SqlException' occurred in System. Data Imports System. SqlClient [code] I tried not to pull out my hair and do a Clean then Rebuild solution Object reference not set to an instance of an Object.

It would be nice if it was my object so i could find it but it's not. Curiously I also lost the little database icon on the dataset in the solution explorer. I can still open it in the designer and preview my queries etc I have a simple application which should be a breeze to build.

All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?

I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System. InvalidOperationException' occurred in System. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?

Let's say a custom exception is thrown in the DoWork event for a backgroundworker. How do I pass the custom exception to the backgroundworker so that it ends up being the e. Do While rdr2.

Item "Week". Item "L1". Item "L2". ToString It generates the following error: A first chance exception of type 'System. SqlCeException' occurred in System. I am trying to perform a simple bound connection between an Access database and a text box on a form. This is actually Chapter 18 of the "Microsoft Visual Basic " book. My operating system is the 64 bit Version of Vista with all updates.

The error when I try to run the application in the debug mode is:"A first chance exception of type 'System. The underlying database "Students Data Set" appears to be fine as I have seen the correct data for the fields "Instructor" and "PhoneNumber" prior to running the program and when connecting with the database.

String' to type 'System. IFormatProvider' exception. StringWriter SaveFileDialog1. FileName the 'SaveFileDialog1. FileName' is underlined with a green squiggle and displays the following tool tip:Runtime errors might occur when converting 'String' to'System.

Iformat Provider'. This is apparrently the problem but what does it mean and how do I fix it to get the code to work? Submit your solution! When answering a question please: Read the question carefully. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.

Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid.

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The custom tool 'msdiscocodegenerator' failed. Could not retrieve the current project. Customize the error response body. Custom DataGrid from typed DataSet. Winforms custom property fails to reload - edited. Add a comment. Active Oldest Votes. If you don't need the connection anymore, You can just get rid of it.

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