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POAsp.net Dynamic Data 4 One-to-One ForeignKey.ascx Returning Primary Key
 

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  1. POAsp.net Dynamic Data 4 One-to-One ForeignKey.ascx Returning Primary Key
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    <p>I have a Dynamic Data 4 site using LinqToSql (.dbml) for 2 tables with a one-to-one relationship. One table (child) does not always have a row corresponding to the primary table.</p> <p>Whenever that is the case (no child table row) instead of an empty row cell the DD ForeignKey.ascx Field template is displaying a link to: </p> <pre><code>Childtable/Detail.aspx?ChildPkField=PRIMARYTABLEGUID </code></pre> <p>I can't find any combination of SQL F-key setups and/or .dbml column property settings that prevent this. The only solution so far is a Custom ForeignKey.ascx template with </p> <pre><code> protected string GetDisplayString() { object value = FieldValue; if (value == null) { //replace this //return FormatFieldValue(ForeignKeyColumn.GetForeignKeyString(Row)); //with this return ""; } else { return FormatFieldValue(ForeignKeyColumn.ParentTable.GetDisplayString(value)); } } </code></pre> <p>Obviously not an optimal solution. To simplify I have removed all Custom Metadata for both tables and all other relationships the tables were involved in. No change.</p> <p>I am sure it i something simple but I have looked at it for too long now - any help appreciated!</p> <p>Here are the current Create Table Scripts from Sql Manager:</p> <pre><code>CREATE TABLE [dbo].[UserProfile]( [UserId] [uniqueidentifier] ROWGUIDCOL NOT NULL, [ProfileUserName] [nvarchar](50) NOT NULL, CONSTRAINT [PK_Profile] PRIMARY KEY CLUSTERED ([UserId] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] GO ALTER TABLE [dbo].[UserProfile] ADD CONSTRAINT [DF_Profile_UserID] DEFAULT (newid()) FOR [UserId] GO </code></pre> <p>and</p> <pre><code>CREATE TABLE [dbo].[SubscribedUser]( [subUserId] [uniqueidentifier] NOT NULL, [subExpireDate] [date] NULL, CONSTRAINT [PK_SubscribedUsers] PRIMARY KEY CLUSTERED ([subUserId] ASC) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY] GO ALTER TABLE [dbo].[SubscribedUser] WITH CHECK ADD CONSTRAINT [FK_SubscribedUser_UserProfile] FOREIGN KEY([subUserId]) REFERENCES [dbo].[UserProfile] ([UserId]) GO ALTER TABLE [dbo].[SubscribedUser] CHECK CONSTRAINT [FK_SubscribedUser_UserProfile] GO </code></pre>
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