Editing app.config connectionstring

Question

0.00/5 (No votes)

See more:

I am using app.config file for define connectionstring;
how to edit line of connectionstring code in app.config in runed program?

Posted 18-Feb-13 2:15am

Hekmat90

Updated 18-Feb-13 2:31am

v3

Add a Solution

Comments

IpsitaMishra 18-Feb-13 8:22am

What exactly your requirement is ??? do you want to get different connection string at different server ..or something else....please specify your requirement .....

Devang Vaja 19-Feb-13 0:14am

Ipsita i think he want to change connection string in running program...
Ofcousrse You can change connection string but you have to refresh the page after changing connctionstring....

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mr. Mahesh Patel · Answer 1 · 2013-02-18T02:33:00

hi dear

use below function

C#

private bool savesattings(string key, string value)
       {
           try
           {
               System.Configuration.Configuration lobjconfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
               lobjconfig.AppSettings.Settings.Remove(key);
               lobjconfig.AppSettings.Settings.Add(key, value);
               lobjconfig.Save(ConfigurationSaveMode.Modified);
               ConfigurationManager.RefreshSection("appSettings");
               return true;
           }
           catch
           {
               return false;
           }
       }

C#

private void btnChange_Click(object sender, EventArgs e)
        {
            savesattings("DemoKey", "MyValue");
        }

Sandesh M Patil · Answer 2 · 2013-02-18T02:20:00

// Retrieve a connection string by specifying the providerName.
// Assumes one connection string per provider in the config file.
static string GetConnectionStringByProvider(string providerName)
{
// Return null on failure.
string returnValue = null;

// Get the collection of connection strings.
ConnectionStringSettingsCollection settings =
ConfigurationManager.ConnectionStrings;

// Walk through the collection and return the first
// connection string matching the providerName.
if (settings != null)
{
foreach (ConnectionStringSettings cs in settings)
{
if (cs.ProviderName == providerName)
returnValue = cs.ConnectionString;
break;
}
}
return returnValue;
}

For more details, refer below link

http://msdn.microsoft.com/en-us/library/ms254494.aspx[^]

Editing app.config connectionstring

2 solutions

Solution 2

Solution 1

Add your solution here

Preview 0