Question

I have a table that contains some blob fields that I don’t want to load by default.

In a dbml file it is possible to set the delay loaded property for such fields.

Is there a similar option for external mapping files?

Answer 1

I’m not familiar with ‘external mapping files’, but this is basically how you do lazy loading with LINQ-to-SQL:

    private System.Data.Linq.Link<String> _content;     [Column(Name = 'content', DbType = 'NVarChar(MAX) NOT NULL', Storage = '_content')]     public String Content     {         get { return this._content.Value; }         set { this._content.Value = value; }     } 

Using System.Data.Linq.Link<String> as the private variable causes that property to be delay loaded, unless delay loading is disabled on the DataContext.