DataSource Controls :: How To Programatically Set A Connection String
Sep 13, 2010
I am thinking of putting a drop down list to choose a couple of options. Depending on what is selected I want to then specify a specific connection string. I use the ConnectionString="<%$ ConnectionStrings:SomeConnectionString %>" format. How can I handle this in the .aspx page?
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Similar Messages:
May 20, 2010
I have several web forms which use a GridView linked to a DataSource control which is defined at design time as follows:
<cc1:pgsqldatasource
id="dsStates"
runat="server"
connectionstring="<%$ ConnectionStrings:PgSqlConnection %>"
oldvaluesparameterformatstring="Original_{0}"
providername="<%$ ConnectionStrings:PgSqlConnection.ProviderName %>" >
</cc1:pgsqldatasource>
As you can see, the connectionstring parameter is defined to a specific connection string name and I need to be able to set such a parameter to a different value, for example, to a session variable content.
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Sep 12, 2010
I need to set the SQLDataSource connection string on the fly. Right now, this is what I have:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
OnSelecting="SqlDataSource1_Selecting"
SelectCommand= (working select stmt here)</asp:SqlDataSource>
Then, I have this:
[code]....
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Jun 16, 2010
I am using CLR project in my website.I have used bulk insert in there.I am not able to use context connection in the procedure.Is there any way to get the connection string from web.configor from context connection.
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May 15, 2010
i work with sql database i want to connect to sql server i dont have sql manegment who could i c the connection string the palce of the sql that wen i write these comand sqlconnection con = new sqlconnection("the connection string")
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Apr 7, 2010
I have an app that connects to only one db for all of the data that the app has access to. My connection string is in the Web.Config file. In each of my DAL classes I have the following code that gets the connection string from the Config file. This works with no issues but I thought there might be a better way of doing this that I don't know.
If I wanted to change the name of the connection string that any of the DAL classes would use then I would have to change the name of the connection string in each of the files. I thought about creating a new class that would hold this then I could just instantiate a new instance of the class to access this with each of the DAL classes that needs access to it. Then if I needed to change the name of the connection string then it would only be in one place. I suspect there is an even better way of doing this that i don't know about.
[Code]....
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Feb 24, 2010
My question is: I have update stored procedure in my database (simple update stmt) I am finding difficulty in writing a ADO.Net(C#) connection string for update stored procedure. i have 4 columns and i first 3 columns have constant values. The 4th column values needs to be updated. At the same time i need to increment and then update the table.
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Feb 20, 2010
I am using LINQ to SQL files in my class libray since every LINQ to SQL sources file is a seprate file and i have to set database connection string in each class library. Now, i have total 7 class libraires in my project how connection string be passed from web.onfg to LINQ file, so that i don't need to manually change the connection string. lke we did in asp.net 2.0 using connection string property in class file library.
How could we pass the same in LINQ's designer file.
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Jun 29, 2010
How to connect to different data providers(Say Oracle and SQL Server) using single connection string?
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Feb 2, 2010
Background: I use SQL server 2005 developer edition and visual studio 2008. Visual studio 2008 is running on a local machine with Vista business edition. SQL server is running on a remote server using Windows server 2003. Both computers are within the same domain.
Problem: First, I used the server explorer to connect to the SQL server. Everything works as desired. Then I write code to do the same thing. I keep getting the following error message:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 25 - Connection string is not valid)
However, I used the exactly identical connection string as the one used in the server explorer. So connection string should not be the problem. In addition, I tried the test code in MSDN, which tells whether my domainusername can flow the network. It turns out the user name is fine. I also went to the SQL server management studio and found the login for my computer is NVCWeihao while my computer login name is NVCweihao. I am wondering if this uppercase letter really affects the connection.
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Feb 2, 2011
I have a db connection string 'ApplicationServices' defined in the connectionString section of web.config and 3 Entity Framework connection strings which have the provider connection string attribute with the same connection string as the one in 'ApplicationServices'. Is there a way to reference connectionString in 'ApplicationServices' for the provider connection string attribute of the EF connection string in the web.config, rather than providing the connection string all over again?
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May 5, 2010
I am developing one web application using MS Access database using oledb connection.Previously i checked the same application is works well in the same machine.Now Today i checked they provide "Unspecified Error". And also Provide the following Exception:
System.Data.OleDb.OleDbException: Unspecified errorat System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.OleDb.OleDbConnection.Open() at clsOledbClass.opencon() in c:inetpubwwwrootcheckNPCApp_CodeclsOledbClass.cs:line 64
I am using the following connection string for connecting database:
[Code]....
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Aug 20, 2010
<asp:SqlDataSource ID="DS" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT * FROM [Products] WHERE ([ProductID] = @QSID)">
<SelectParameters>
<asp:QueryStringParameter DefaultValue="" Name="QSID" QueryStringField="ID"
Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
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Apr 7, 2010
In my DAL i have more than 100 methods/Function, each and every method am opening the sqlconnection and closing the connection, this is taking too much of time to establish the connection at every time. So what i expect is one common class will create the SqlConnection that will check if the connection is Broken or Closed then create the connection again else return the connection, how to do this(Also i would like to apply ConnectionPooling).
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Oct 6, 2010
I have a table in SQL where I insert data (CatCodes) using C# code but I want to insert ID code (DealerID) with it as well. Following is my Stored Procedure and C# code:
[Code]....
C#:
[Code]....
As you can see, I am insering CatCode values in Categories table using string cbspecialities.
How can I insert DealerID the same way? DealerID is automatically generated in tblDealers table when "InsertExternalInfo" asp.SqlDataSource control runs "InfoInsert" SP.
[Code]....
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May 4, 2010
In our project we need to restore the analysis service database back up(.abf) files.Now i can connect to analysis service and can create new database.May i know how i can restore the abf file .i saw i can do this by using sql server SMO dll .check the below link
[URl]
how to get the samples are located in <system_drive>:Program FilesMicrosoft SQL Server100Samples folder,if you alrady installed the documentation
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Sep 2, 2010
I have a page where you can search and display other data, very simple layout. 1 Gridview and 1 objectdatasource. But i have 4 possible buttons that can populate the gridview..
i would like to control my objectdatasource from the code behind based on the button you click.
here is what i have right now.. but if possible, can this source not be hardcoded like this and only built in the code behind?
[Code]....
I found this site with a solution to this persons issue, but i cant seem to get mine working this way.
http://stackoverflow.com/questions/2404264/overwriting-controlparameters-of-datasources-in-code-behind
I have this as the code behind right now when you press the button.. what other parameter settings am i missing and is this the right order to populate them for the source to acknowledge my values?
[Code]....
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Mar 15, 2011
just for my testing purpose i know i can define both the connection's outside in a single web config file by different name's and access them in my front end according to it but what if i want to have seprate for both connection's web.config situation is like this see image so i want to access my connections from second web config file how i can do that.
[Code]...
i tired this but its giving error
[Code]....
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Jul 4, 2013
In my application there are 4 connection strings...from that i want one connectionstring should be default connection string.How to do ?
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Oct 18, 2010
I am preparing for an Access2007 db conversion at the beginning of the year and would like to know what the best process would be for connecting to the sqlserver2005 database. I have read about adding the connection string to the web.config file. I have also read about using ADO.NET and put the connection information into a class and not the web.config file.
I would like to hear from others as to what you have used, are using, or plan on using for a webapp (vs2010), and why so I can get an understanding.
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Aug 10, 2011
I have an ASP.Net website running on IIS7. The Application Pool is set to ASPv4 Classic.
Authentication Mode is set to ASP.Net Authentication & Windows Authentication
My question is, when I want to connect to SQL using a "trusted connection" in the Connection String, what user will actually be passed into SQL?
I thought it would pass my logon details, but it is coming back with an NT AUTHORITYANONYMOUS LOGON error, which seems to point towards it not passing in my logon.
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Nov 15, 2010
i am trying to create connection using OLEDB connection in my app. but i am not able to create the connection as in datasource i want to use Server.mappath, but cudn't find the right method to use it. i am trying to make connection with Access database file. following is code i have tried:
string path = Server.MapPath("~/uploadaccess/Production.mdb");
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb")&";";
and also
OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & path&";");
and tried this
OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb"));
and this is the error i am getting:
Operator '&' cannot be applied to operands of type 'string' and 'string'
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Feb 13, 2010
on VWD 2005 this code works fine, but on 2008 it says I haven't created an instance of the object. I want to convert the object connString (a connection string) into a string.
'This acceses the virtual directory web.config file for connection strings
'We have to convert the object to a connection string
Dim rootWebConfig As System.Configuration.Configuration
rootWebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/VirtualDirec")
Dim connString
As System.Configuration.ConnectionStringSettings
connString = rootWebConfig.ConnectionStrings.ConnectionStrings("ConnectString1")
Dim strConnString
As
String = connString.ToString().......
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Feb 16, 2010
I have been searching internet in order to secure my connection string in the web.config file and setting the Login controls connection strings in runtime
TEverything about encrypting connection strings works fine on local machine. I can do it programmatically and on aspnet_regiis.exe
My questions are How can I set the connection string to any login control in runtime? How can I encrypt my connection string on my shared hosting ?How can I use aspnet.regiis.exe to encrypt my config file on shared hosting ? How to define the commands ?If I can find a solution to my 1st question, 2nd doesnt matter anymore.
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Sep 30, 2013
public class DataClass{ public DataClass() { } /// <summary>
/// return rows depend on position /// if you need 10th to 20th you need to pass start=10 and end=20
/// </summary> /// <param name="start">database start position of one row</param>
/// <param name="next">database end position of one row</param>
/// <returns></returns> public string GetAjaxContent(int start, int end) {
[code].....
When I'm trying to develop the unlimited scrolling in datalist i have an error like connection string not initialized I checked and rechecked.
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