关于PetShop一个问题！
public   int   GetUniqueID(string   userName,   bool   isAuthenticated,   bool   ignoreAuthenticationType,   string   appName)   {
string   sqlSelect   =   "SELECT   UniqueID   FROM   Profiles   WHERE   Username   =   @Username   AND   ApplicationName   =   @ApplicationName ";

SqlParameter[]   parms   =   {
new   SqlParameter( "@Username ",   SqlDbType.VarChar,   256),
new   SqlParameter( "@ApplicationName ",   SqlDbType.VarChar,   256)};
parms[0].Value   =   userName;
parms[1].Value   =   appName;

if(!ignoreAuthenticationType)   {
sqlSelect   +=   "   AND   IsAnonymous   =   @IsAnonymous ";
Array.Resize <SqlParameter> (ref   parms,   parms.Length   +   1);
parms[2]   =   new   SqlParameter( "@IsAnonymous ",   SqlDbType.Bit);
parms[2].Value   =   !isAuthenticated;
}

int   uniqueID   =   0;

object   retVal   =   null;
retVal   =   SqlHelper.ExecuteScalar(SqlHelper.ConnectionStringProfile,   CommandType.Text,   sqlSelect,   parms);

if(retVal   ==   null)
uniqueID   =   CreateProfileForUser(userName,   isAuthenticated,   appName);
else
uniqueID   =   Convert.ToInt32(retVal);
return   uniqueID;

这段代码主要是用来干嘛的呀。ignoreAuthenticationType代表什么呢，

------解决方案--------------------
看代码应该用来看传哪种身份的验证的

if(!ignoreAuthenticationType) {
sqlSelect += " AND IsAnonymous = @IsAnonymous ";
Array.Resize <SqlParameter> (ref parms, parms.Length + 1);
parms[2] = new SqlParameter( "@IsAnonymous ", SqlDbType.Bit);
parms[2].Value = !isAuthenticated;
}