C＃和MS Access数据库（更新）

Question

I created a Windows Forms application in C# , created a data source in C# from the my MS Access database 'inspro' on the form I coded for the save button:

try
{
    this.Validate();
    this.entitiesBindingSource.EndEdit();
    this.entitiesTableAdapter.Update(this.iNSPRODataSet.Entities);
    MessageBox.Show("Update successful");
}
catch (System.Exception ex)
{
    MessageBox.Show("Update failed");
}

I get the message box that says "Update successful", but when I check in Access, nothing is updated. How do I fix this problem?

Answer 1

It could be related to the EndEdit() bug that has caught many others . If it moves the focus, that could be why you're not seeing the save you're expecting.

Another possibility, read the comments at the bottom of this page , it has to do with a copy of the MDF moving to the debug folder, effectively overwriting the changes.

{EDIT} As pointed out by Julien, the second article I mentioned references an MDF (SQL Server), and access would be a MDB, but the theory there is still sound. Check to see if the included file is set to copy to output directory.