我使用EF + MySql,數據庫包含兩個foriegnkey,當我運行我的項目時,它會說:已經有一個與此連接關聯的打開DataReader,必須先關閉它,然後我添加MultipleActiveResultSets = true連接字符串在web.config中,我再試一次,它顯示我:初始化字符串的格式不符合規範,我怎麼可以 解決這個問題?代碼某種固定foriegnkey和錯誤的初始化代碼列表如下:已經有一個與此連接關聯的打開的DataReader
#region EDM 關係源元數據
[assembly: EdmRelationshipAttribute("blogModel", "cid", "cls", System.Data.Metadata.Edm.RelationshipMultiplicity.One, typeof(blog.Models.cls), "news", System.Data.Metadata.Edm.RelationshipMultiplicity.Many, typeof(blog.Models.news), true)]
[assembly: EdmRelationshipAttribute("blogModel", "uid", "users", System.Data.Metadata.Edm.RelationshipMultiplicity.One, typeof(blog.Models.users), "news", System.Data.Metadata.Edm.RelationshipMultiplicity.Many, typeof(blog.Models.news), true)]
#endregion
#region 導航屬性
/// <summary>
/// 沒有元數據文檔可用。
/// </summary>
[XmlIgnoreAttribute()]
[SoapIgnoreAttribute()]
[DataMemberAttribute()]
[EdmRelationshipNavigationPropertyAttribute("blogModel", "cid", "cls")]
public cls cls
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<cls>("blogModel.cid", "cls").Value;
}
set
{
((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<cls>("blogModel.cid", "cls").Value = value;
}
}
/// <summary>
/// 沒有元數據文檔可用。
/// </summary>
[BrowsableAttribute(false)]
[DataMemberAttribute()]
public EntityReference<cls> clsReference
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<cls>("blogModel.cid", "cls");
}
set
{
if ((value != null))
{
((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedReference<cls>("blogModel.cid", "cls", value);
}
}
}
/// <summary>
/// 沒有元數據文檔可用。
/// </summary>
[XmlIgnoreAttribute()]
[SoapIgnoreAttribute()]
[DataMemberAttribute()]
[EdmRelationshipNavigationPropertyAttribute("blogModel", "uid", "users")]
public users users
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<users>("blogModel.uid", "users").Value;
}
set
{
((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<users>("blogModel.uid", "users").Value = value;
}
}
/// <summary>
/// 沒有元數據文檔可用。
/// </summary>
[BrowsableAttribute(false)]
[DataMemberAttribute()]
public EntityReference<users> usersReference
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<users>("blogModel.uid", "users");
}
set
{
if ((value != null))
{
((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedReference<users>("blogModel.uid", "users", value);
}
}
}
#endregion
public partial class blogEntities : ObjectContext
{
#region 構造函數
/// <summary>
/// 請使用應用程序配置文件的「blogEntities」部分中的連接字符串初始化新 blogEntities 對象。
/// </summary>
public blogEntities() : base("name=blogEntities", "blogEntities")
{
this.ContextOptions.LazyLoadingEnabled = true;
OnContextCreated();
}
/// <summary>
/// 初始化新的 blogEntities 對象。
/// </summary>
public blogEntities(string connectionString) : base(connectionString, "blogEntities")
{
this.ContextOptions.LazyLoadingEnabled = true;
OnContextCreated();
}
/// <summary>
/// 初始化新的 blogEntities 對象。
/// </summary>
public blogEntities(EntityConnection connection) : base(connection, "blogEntities")
{
this.ContextOptions.LazyLoadingEnabled = true;
OnContextCreated();
}
#endregion
thanx爲你的幫助,因爲我是在MVC beginer,所以你會發布我的示例代碼(如何使用包括)? –