Add custom properties to a class

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//In my class I have private variables and properties like this.

C#

private string _itemCOde=string.Empty;
private string  _itemName=string.Empty;

public string ItemCode
        {
            get { return _itemCode; }
            set { _itemCode = value == null ? value : value.Trim();}
        }
public string ItemName
        {
            get { return _itemName; }
            set { _itemName = value == null ? value : value.Trim();}
        }

According to this properties I create Item objects after selecting the data from the sql table.
Now, if database table altered and add a new column called cost, then I have to add another property to the class. Without doing this is there any way to add property according to the database table.

Posted 19-May-11 23:30pm

Sanyon_d

Updated 19-May-11 23:34pm

Fredrik Bornander

v2

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Fredrik Bornander 20-May-11 5:34am

Added code blocks.

2 solutions

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#realJSOP · Answer 1 · 2011-05-19T23:37:00

Solution 1

Google reveals all. I searched for "c# add properties dynamically", and this was one of the first results returned:

http://www.eggheadcafe.com/community/aspnet/2/10070284/how-to-dynamically-add-propery-in-a-class-in-c.aspx[^]

Posted 19-May-11 23:37pm

#realJSOP

Fredrik Bornander · Answer 2 · 2011-05-19T23:39:00

Solution 2

There are many different ways of achieving this, from approaches such as turning your object into a IDictionary based property bag, to using an ORM mapper[^].

Or just type it by hand, a well designed DB schema should not experience too many changes to its table definitions anyway.

/Fredrik

Posted 19-May-11 23:39pm

Fredrik Bornander

Comments

Sanyon_d 23-May-11 0:37am

Thanks for the reply. In my form I have grid to show the contents of the table. For that grid user can add columns as they need and can add values to the field. When user adding (string,numeric etc) field to the grid, I want that to be add as a column in the table and need to save that value in correct column. After that when user retriewing data I want to populate properties for the object.