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OleDb.ExecuteNonQuery not using the correct path

Posted on 2011-02-28
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Last Modified: 2012-05-11

I create an OleDbCommand, giving it a connection that I know ought to work.  Just before I execute this command:

int retval = cmd.ExecuteNonQuery();

...I look at the values in the OleDbCommand object cmd.

The Connection’s connection string is: "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\\francine\\Winform.Finance\\Finance.mdb;"

…and the connection’s DataSource is: "C:\\francine\\Winform.Finance\\Finance.mdb"

…but when I execute it, an OleBdException is thrown:  {"Could not find file 'C:\\francine\\Winform.Finance\\bin\\Debug\\dbo.mdb'."}

Does anybody know why it might be losing the name of the database?
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Question by:FrancineTaylor
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Expert Comment

by:agarwalrahul
ID: 35004202
Try This:

Put the database in App_Data folder and

then change your Datasource path to

Source=|DataDirectory|\Finance.mdb
 
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Author Comment

by:FrancineTaylor
ID: 35014269
I changed the pathname to access the App_Data folder.  The code now reads:

OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\\francine\\Crystal Applications\\Crystal.Winform.Finance\\App_Data\\Finance.mdb;");
            conn.Open();
            OleDbCommand cmd = new OleDbCommand("INSERT INTO dbo.trans(description) VALUES('Description')", conn);
            int retval = cmd.ExecuteNonQuery();

When I hit the ExecuteNonQuery line, it throws the same error:

{"Could not find file 'C:\\francine\\Crystal Applications\\Crystal.Winform.Finance\\Crystal.Winform.Finance\\bin\\Debug\\dbo.mdb'."}

The path works fine for other commands on that database.  Tables were created, records inserted into those tables, etc.  The tran table was just created previous to this command ("CREATE TABLE [trans](ID int IDENTITY PRIMARY KEY, Description VARCHAR(50)")

It isn't until I try to insert a record into the trans table that the error is thrown.
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FrancineTaylor earned 0 total points
ID: 35048228
Okay, never mind.  I found the error.  It was throwing an error on the INSERT statement that I was trying to execute because one of the string values that I was inserting just happened to have a single quote in the data, and that threw off the whole statement.

Not sure why it was getting a .NET error instead of an SQL error, but there it is.
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Author Closing Comment

by:FrancineTaylor
ID: 35106999
Figured it out myself
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