修改ProfileBase ConnectionString的動態

我有下面的代碼，我想用它來修改ProfileBase的connectionString：修改ProfileBase ConnectionString的動態

ProfileBase profile = ProfileBase.Create(username); 

string _connectionString = (_DataModel.Connection as System.Data.EntityClient.EntityConnection).StoreConnection.ConnectionString; 

FieldInfo connectionStringField = profile.Providers["MySqlProfileProvider"].GetType().BaseType.GetField("_sqlConnectionString", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); 
connectionStringField.SetValue(profile.Providers["MySqlProfileProvider"], _connectionString); 

profile["FirstName"] = firstName; 
profile["Surname"] = surname; 

profile.Save();

首先所有connectionStringField總是回來爲空，但我可以看到profile.Providers確實包含MySqlProfileProvider。這是內指定我Web.Config：

<profile defaultProvider="MySqlProfileProvider"> 
    <providers> 
    <clear/> 
    <add name="MySqlProfileProvider" connectionStringName="MyApp" applicationName="MyApp" type="System.Web.Profile.SqlProfileProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/> 
    </providers> 
    <properties> 
    <add allowAnonymous="false" defaultValue="" name="FirstName" readOnly="false" serializeAs="String" type="System.String"/> 
    <add allowAnonymous="false" defaultValue="" name="Surname" readOnly="false" serializeAs="String" type="System.String"/> 
    </properties> 
</profile>

我的問題是怎麼來的connectionStringField是回來爲空？這是否意味着我無法像修改自定義的MembershipProvider那樣通過重寫Initialize方法修改連接字符串？

來源

2012-04-12 fuzz

ASP.NET網站或者項目模板？ – IrishChieftain 2012-04-12 02:36:22

@IrishChieftain ASP.NET項目（MVC w/WCF w/EF）。 – fuzz 2012-04-12 04:00:27

你是否獲得名字和姓氏屬性？ – IrishChieftain 2012-04-12 04:08:14

你去太多了基本類型下來：

.Providers["MySqlProfileProvider"].GetType()**.BaseType**.GetField 
.Providers["MySqlProfileProvider"].GetType().GetField

下面的代碼應該工作：

string _connectionString = (_DataModel.Connection as System.Data.EntityClient.EntityConnection).StoreConnection.ConnectionString; 
Type type = profile.Providers["MySqlProfileProvider"].GetType(); 
FieldInfo connectionStringField = type.GetField("_sqlConnectionString", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); 
connectionStringField.SetValue(profile.Providers["MySqlProfileProvider"], _connectionString);

來源

2012-04-13 01:07:39 Brinium

這似乎很好地工作，謝謝隊友。 – fuzz 2012-04-13 01:08:47

修改ProfileBase ConnectionString的動態

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