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Hi,

I have asp.net project with sql connection.I want connect database with asp.net and run the project and web config file there

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Computer Teaching 1.5yr, Mathematics Teaching 1yr Excel Teaching 6Month

In web.config: <connectionStrings> <add name="ConnectionString" connectionString="Data Source=192.168.1.25;Initial Catalog=Login;Persist Security Info=True;User ID=sa;Password=example.com" providerName="System.Data.SqlClient" /> </connectionStrings>In Class.cs public static string ConnectionString{...
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In web.config: <connectionStrings> <add name="ConnectionString" connectionString="Data Source=192.168.1.25;Initial Catalog=Login;Persist Security Info=True;User ID=sa;Password=example.com" providerName="System.Data.SqlClient" /> </connectionStrings>In Class.cs public static string ConnectionString{ get{ return ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;} set{}

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IT Professional with 8+ years of teaching experience

Put this in Web configuration file as: <connectionStrings> <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System. Data. SqlClient" />...
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Put this in Web configuration file as: <connectionStrings> <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System. Data. SqlClient" /></connectionStrings>

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IT Professional Trainer with 10 years of experience in IT Industry

<connectionStrings> <add name="ConnStringDb1" connectionString="Data Source=localhost;Initial Catalog=YourDataBaseName;Integrated Security=True;" providerName="System.Data.SqlClient" /> </connectionStrings>
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RPA Developer with 4 years of experience

<connectionStrings> <add name="ReviewsConnectionString" connectionString="Data Source=serverName; Initial Catalog=databaseName; Persist Security Info=True; User ID=username; Password=password" providerName="System.Data.SqlClient" /> </connectionStrings>
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IT professional with 5 years experience

<connectionStrings> <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System. Data. SqlClient" /> </connectionStrings>
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  1. <connectionStrings>
  2. <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System. Data. SqlClient" />
  3. </connectionStrings>
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IT professionals instructor with experience of AI

<connectionStrings> <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System.Data.SqlClient" /> </connectionStrings>...
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  1. <connectionStrings>  
  2.     <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System.Data.SqlClient" />   
  3. </connectionStrings>  
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"Where Mathematics Meets The Elegance"

<connectionStrings> <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System.Data.SqlClient" /> </connectionStrings>
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<connectionStrings>       <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System.Data.SqlClient" />    </connectionStrings> 

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Research Professional with 12 Years of Experience in Computer Programming and Research Tools

'Connectionstring' is the variable to use the connection string in any class of the .net. ip_address_of_server : represents the ip of the server databasename : database name username : name of the database user password : password of the database associated with the user Use belo code in web.config file...
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'Connectionstring' is the variable to use the connection string in any class of the .net.

ip_address_of_server : represents the ip of the server

databasename : database name

username : name of the database user

password : password of the database associated with the user

Use belo code in web.config file 

<appSettings>
<add key="connectionstring" value="server=ip_address_of_server;database=databasename;uid=username;pwd=password"/>
</appSettings>

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IT Proffesional with 4 years of expo in development and support

namespace DemoApplication { public partial class Demo System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string connetionString; SqlConnection cnn; connetionString = @"Data Source=WIN-50GP30FGO75;Initial Catalog=Demodb ;User ID=sa;Password=demol23"; cnn...
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namespace DemoApplication
{  
	public partial class Demo  System.Web.UI.Page  
    {  
	  protected void Page_Load(object sender, EventArgs e)  
	  {  
		string connetionString;
		SqlConnection cnn;
            
		connetionString = @"Data Source=WIN-50GP30FGO75;Initial Catalog=Demodb ;User ID=sa;Password=demol23";
			
		cnn = new SqlConnection(connetionString);
			
		cnn.Open();  
			
		Response.Write("Connection MAde");    
		conn.Close();  
			
	  }
	}
}
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IT Professional Trainer with 10 years of experience in IT Industry

After opening the web.config file in application, add sample db connection in connectionStrings section like this: <connectionStrings> <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName;...
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After opening the web.config file in application, add sample db connection in connectionStrings section like this:

 
  1. <connectionStrings>  
  2.     <add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName="System.Data.SqlClient" />   
  3. </connectionStrings>  

Declaring connectionStrings in web.config file:

 
  1. <connectionStrings>  
  2.     <add name="dbconnection" connectionString="Data Source=Soumalya;Integrated Security=true;Initial Catalog=MySampleDB" providerName="System.Data.SqlClient" />   
  3. </connectionStrings>  
There is no need of username and password to access the database server.
 

Now, write the code to get the connection string from web.config file in our codebehind file. Add the following namespace in codebehind file.

using System.Configuration;


This namespace is used to get configuration section details from web.config file.

C# code

 
  1. using System;  
  2. using System.Data.SqlClient;  
  3. using System.Configuration;  
  4. public partial class _Default: System.Web.UI.Page {  
  5.     protected void Page_Load(object sender, EventArgs e) {  
  6.         //Get connection string from web.config file  
  7.         string strcon = ConfigurationManager.ConnectionStrings["dbconnection"].ConnectionString;  
  8.         //create new sqlconnection and connection to database by using connection string from web.config file  
  9.         SqlConnection con = new SqlConnection(strcon);  
  10.         con.Open();  
  11.     }  
  12. }
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