How to Log-in to Salesforce.com in C#

I have been doing Salesforce.com (SFDC) application development for some time and the one thing I do know is that there are 

some things that you just have to do over and over again. One of them is connecting to SFDC and ensuring a connection based 

on a session identifier. To save some time, I thought about writing this as a blog post to save me some time in the future. I hope

you find it useful. 

public static class SFDCManager
{
    #region "Member Fields"
    /// <summary>
    ///  SFDC Proxy
    /// </summary>
    private static SforceService _SfBinding;
    #endregion

    #region "Private Member Methods"
    /// <summary>
    /// Login Member Method
    /// </summary>
    /// <returns></returns>
    private static bool Login()
    {
        if ( string.IsNullOrEmpty( SfUserName ) )
            SfUserName = Properties.Settings.Default.SFUserName;

        if ( string.IsNullOrEmpty( SfPassword ) )
            SfPassword = Properties.Settings.Default.SFPassword;

        bool bReturn = false;
        int timeout = 9000000;
        if ( _SfBinding == null )
        {
            _SfBinding = null;
            _SfBinding = new SforceService();
            _SfBinding.Timeout = timeout;
        }
        try
        {
            _SfBinding.AssignmentRuleHeaderValue = new AssignmentRuleHeader();
            _SfBinding.AssignmentRuleHeaderValue.useDefaultRule = true;

            LoginResult loginResult = _SfBinding.login( SfUserName , SfPassword );
            _SfBinding.SessionHeaderValue = null;
            _SfBinding.SessionHeaderValue = new SessionHeader();
            _SfBinding.SessionHeaderValue.sessionId = loginResult.sessionId;
            _SfBinding.Url = loginResult.serverUrl;
            bReturn = true;
        }
        catch
        {
            //TODO: You should handle this exception
            throw;
        }
        return bReturn;
    }
    #endregion

    #region "Member Property"
    /// <summary>
    /// SFDC Connection UserName Property
    /// </summary>
    public static string SfUserName
    {
        get;
        set;
    }
    /// <summary>
    /// SFDC Connection Password Property
    /// </summary>
    public static string SfPassword
    {
        get;
        set;
    }
    #endregion
}