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The ConnectionString property has not been initialized.

Posted on 2011-03-12
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Last Modified: 2012-05-11
Hi All I am trying to use the SqlDataSource to query a mysql db. I am using the following code


String connectionString = (String)ConfigurationSettings.AppSettings["mysqlConnectionString"];
        string oQRY =
               @"SELECT [ID], [username], [forename], [surname] FROM (select [ID], [username], [forename], [surname], row_number()over(order by t.[surname]) as [rn] from [users] as t where (([forename] + ' ' + [surname]) LIKE @filter)) as st where st.[rn] between @startIndex and @endIndex";

        SqlDataSource ds = new SqlDataSource(connectionString, oQRY);

        ds.SelectParameters.Clear();
        ds.SelectParameters.Add("filter", TypeCode.String, string.Format("%{0}%", e.Filter));
        ds.SelectParameters.Add("startIndex", TypeCode.Int64, (e.BeginIndex + 1).ToString());
        ds.SelectParameters.Add("endIndex", TypeCode.Int64, (e.EndIndex + 1).ToString());
        comboBox.DataSource = ds;
        comboBox.DataBind();

however I am getting the error The ConnectionString proprty has not been initialized. Any ideas why?

Matt
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Question by:flynny
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5 Comments
 
LVL 21

Expert Comment

by:Dale Burrell
ID: 35118328
Normally means that mysqlConnectionString doesn't exist in web.config.
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LVL 9

Expert Comment

by:mayank_joshi
ID: 35121357
can you show your web.config file?
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Author Comment

by:flynny
ID: 35123252
heres the connection string section from the web.config

      <connectionStrings>
            <add name="mysqlConnectionString" connectionString="Server=xxx;Database=xxx;User=xxx;Password=xxx" providerName="MySql.Data.MySqlClient"/>
      </connectionStrings>
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LVL 9

Accepted Solution

by:
mayank_joshi earned 2000 total points
ID: 35126680
You are finding the connection string in AppSettings section while it is located in
ConnectionStrings section.

try:-
String ConnectionString=ConfigurationManager.ConnectionStrings("mysqlConnectionString").ConnectionString;

Open in new window

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Author Closing Comment

by:flynny
ID: 35127338
duh sorry for being dumb.

thanks a bunch!
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