Most of people wonder how they can dynamically change the contents of web.config file. To simplify things I have created couple of functions through which you can change the contents of web.config file. Here is the code to change the contents of web.config file:-
You can update the contents of web.cofig file by simply calling above functions like this:-
/// <summary>
/// Updates the setting.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
public void UpdateSetting(string key, string value)
{
Configuration config = WebConfigurationManager.OpenWebConfiguration("~");
if (config.AppSettings.Settings[key] == null)
{
config.AppSettings.Settings.Add(key, value);
}
else
{
config.AppSettings.Settings[key].Value = value;
}
config.Save();
ConfigurationManager.RefreshSection("appSettings");
}
/// <summary>
/// Updates the connection string.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
public void UpdateConnectionString(string key, string value)
{
Configuration config = WebConfigurationManager.OpenWebConfiguration("~");
if (config.ConnectionStrings.ConnectionStrings[key] == null)
{
config.ConnectionStrings.ConnectionStrings.Add(new ConnectionStringSettings(key, value));
}
else
{
config.ConnectionStrings.ConnectionStrings[key].ConnectionString = value;
}
config.Save();
ConfigurationManager.RefreshSection("connectionStrings");
}
You can update the contents of web.cofig file by simply calling above functions like this:-
protected void Page_Load(object sender, EventArgs e)
{
UpdateSetting("test", "123");
UpdateConnectionString("testcon", "12345");
}
