MS Access database conn.open() errer.

Question

The connection is successful but when I try to generate many reports with different buttons it displays for two or more times then the following error comes. Please, I look forward. thnanks.

Naimish Makwana · Answer

Hello Nuru, Please check below causes of the conn.Open() error: Incorrect connection string: The most common cause of this error is an incorrect connection string. The connection string should contain the path to the MS Access database file, as well as the provider used to access it. Check your connection string and make sure it is correct. Unavailable database: The MS Access database file may not be available or may be locked by another process. Check the file path and make sure the database file is accessible. Missing or outdated MS Access driver: To connect to an MS Access database, you need to have the Microsoft Access Database Engine installed. Make sure you have the correct version of the driver installed and that it is up-to-date. Permission issues: The user account that is running your code may not have the necessary permissions to access the MS Access database file. Check the file permissions and make sure the user has the necessary rights to access the database. Database corruption: If the MS Access database is corrupt, it may cause the conn.Open() error. Try repairing or compacting the database to resolve the issue. Thanks Naimish Makwana

Pasang Tamang · Answer

Hi, This could be permission issue also. You can try by moving the access db file to different drive than in desktop. And make sure your access db file is not open with access program. If it is locked by another program then that time also possible to get this error. Regards, Pasang

Muhammad Imran Ansari · Answer

There could be multiple reason of this error: 1. You are not proper closing the connection after generating report. 2. There could be a access issue Kindly check this link for more detail resolution steps: https://www.c-sharpcorner.com/blogs/systemdataoledboledbexception-unspecified-error1