Self Reference..

[sachin jagtap]

Hi,

i am not able to get this work...

 

public

 

class ProductDTO

 

{

 

public int product_key { get; set; }

 

 

public string product { get; set; }

 

 

public string product_area { get; set; }

 

 

public String last_updated_by { get; set; }

 

 

public DateTime last_updated_on { get; set; }

 

}

 

 

public class ProductExtDTO

 

{

 

 

public IList<ProductDTO> Products;

 

}

 

PropertyRelation

 

relation = new PropertyRelation("product_area");

 

relation.IsSelfReference =

true;

 

Product_Grid.TableDefinition.Relation = relation;

Product_Grid.RowIndicatorVisibility =

Visibility.Visible;

 

 

 

if (tableDefinition != null)

 

{

Product_Grid.TableDefinition.ChildTableDefinitions.Clear();

Product_Grid.TableDefinition.ChildTableDefinitions.Add(tableDefinition);

}

 

Product_Grid.ItemsSource = ProductList.Products;

I don;t see any row details or hierarchy.

Thanks,
Sachin

 

[Rossen Hristov]

Hello sachin jagtap,

The relation that you are trying to create does not seem to be a self-reference. Self-reference means that the object has objects of the same type associated with it. For example, the class Employee can have a collection of sub-ordinates, which are of the same type -- Employee.

You are creating a relation between ProductDTO and product_area which is a string and not a collection of ProductDTo's.

To learn more about hierarchy and relations please check out our online example of self-reference. Make sure you check out the other three Hierarchy examples. Please, let us know if you have any problems.

All the best,
Ross
the Telerik team

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