Solved

C#, Database connection error

Posted on 2011-03-25
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Last Modified: 2013-12-17
Good Morning all,

I am writing a test program to connect a C# WinForm to a test database .SDF file. I have managed to populate the database and make it show up in a datagridview already but now I am trying to add data during runtime. At first I am hard coding the values to add but when I do it I get an error about the User ID. I am not sure what to code for it because when I created the database no user ID was defined only the password. Here is my code

 
SqlCeConnection sqlConnection1 = new SqlCeConnection();
            sqlConnection1.ConnectionString = "Data Source = C:\\Users\\smunsell\\Documents\\TestDB.sdf; User ID = ???; Password = Password";

            System.Data.SqlServerCe.SqlCeCommand cmd = new System.Data.SqlServerCe.SqlCeCommand();
            cmd.CommandType = System.Data.CommandType.Text;
            cmd.CommandText = "INSERT [UserData] (ID, User, Status) VALUES ('12', 'Tim', 'Inactive')";
            cmd.Connection = sqlConnection1;

            sqlConnection1.Open();
            try
            {
                cmd.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
            sqlConnection1.Close();

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Any ideas how to fix it or what I should put in my uer id? Screenshot of program attached. Error code as well.

screen.png
error.png
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Comment
Question by:Pandemonium1x
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5 Comments
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 35215678
I don't think you need to pass a user id for a CE connection string. Just remove it so your string becomes:
sqlConnection1.ConnectionString = "Data Source = C:\\Users\\smunsell\\Documents\\TestDB.sdf; Password = Password";

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0
 
LVL 4

Author Comment

by:Pandemonium1x
ID: 35215925
I have thought of that too but if I remove it I get


There was an error parsing the query. [Tolen line number =1, Token line offset = 20, Token in error = User]
0
 
LVL 4

Author Comment

by:Pandemonium1x
ID: 35215958
Not sure if this helps but here is my DB tree too.
struct.png
0
 
LVL 52

Accepted Solution

by:
Carl Tawn earned 500 total points
ID: 35215960
I think it complaining because User is a reserved word, and it is referring to your query rather than the connection string.

Try changing:
cmd.CommandText = "INSERT [UserData] (ID, User, Status) VALUES ('12', 'Tim', 'Inactive')";

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To:
cmd.CommandText = "INSERT [UserData] (ID, \"User\", Status) VALUES ('12', 'Tim', 'Inactive')";

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0
 
LVL 4

Author Closing Comment

by:Pandemonium1x
ID: 35216024
You deserve a rank of "Jedi" my friend. Good answer...Thanks it worked!
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