Databases
StackOverflow2013
Postsdbo
POHow to add property-level Attribute to map ColumnAttribute at runtime?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to add property-level Attribute to map ColumnAttribute at runtime?
    primarykey
    data
    text
    <p>From this <a href="https://stackoverflow.com/questions/12143650/how-to-add-property-level-attribute-to-the-typedescriptor-at-runtime/">question</a> we have implemented the ColumnAttribute association with the corresponding property, but when Linq to SQL tries to map this property to a Column it doesn't work.</p> <p>Our property and mapping code(from the other question):</p> <pre><code> public System.Xml.Linq.XElement Name { get { return this.name; } set { this.OnNameChanging(value); this.SendPropertyChanging(); this.name = value; this.SendPropertyChanged("Name"); this.OnNameChanged(); } } System.Data.Linq.Mapping.ColumnAttribute columnAttribute = new System.Data.Linq.Mapping.ColumnAttribute(); columnAttribute.Name = "Name"; columnAttribute.Storage = "name"; columnAttribute.DbType = "Xml NOT NULL"; columnAttribute.CanBeNull = false; columnAttribute.UpdateCheck = System.Data.Linq.Mapping.UpdateCheck.Never; PropertyOverridingTypeDescriptor propertyOverrideTypeDescriptor = new PropertyOverridingTypeDescriptor(TypeDescriptor.GetProvider(typeof(ClassToMap)).GetTypeDescriptor(typeof(ClassToMap))); PropertyDescriptor pd = TypeDescriptor.GetProperties(typeof(ClassToMap)).Cast&lt;PropertyDescriptor&gt;().ToArray().Where(prop =&gt; prop.Name == "Name").FirstOrDefault(); PropertyDescriptor pd2 = TypeDescriptor.CreateProperty( typeof(ClassToMap).GetType(), pd, // base property descriptor to which we want to add attributes // The PropertyDescriptor which we'll get will just wrap that // base one returning attributes we need. columnAttribute // this method really can take as many attributes as you like, not just one ); propertyOverrideTypeDescriptor.OverrideProperty(pd2); TypeDescriptor.AddProvider(new TypeDescriptorOverridingProvider(typeof(ClassToMap)), typeof(ClassToMap)); </code></pre> <p>Any idea how to refresh the table mapping? </p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USlorddarkangel
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COI've tried this other alternative http://stackoverflow.com/questions/393687/how-can-i-add-my-attributes-to-code-generated-linq2sql-classes-properties but still not working.
      singulars
      1. POHow to add property-level Attribute to map ColumnAttribute at runtime?
      1. USlorddarkangel
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload