UpdateCheck Enumeration

.NET Framework (current version)

Note
The .NET API Reference documentation has a new home. Visit the .NET API Browser on docs.microsoft.com to see the new experience.

Specifies when objects are to be tested for concurrency conflicts.

Namespace: System.Data.Linq.Mapping
Assembly: System.Data.Linq (in System.Data.Linq.dll)

Syntax

C++

public enum UpdateCheck

Members

	Member name	Description
	Always	Always check. This is the default unless IsVersion is true for a member.
	Never	Never check.
	WhenChanged	Check only when the object has been changed.

Remarks

The code example after the table specifies that HomePage objects should never be tested.

Examples

[Column(Storage="_HomePage", DbType="NText", UpdateCheck=UpdateCheck.Never)]
public string HomePage
{
    get
    {
        return this._HomePage;
    }
    set
    {
        if ((this._HomePage != value))
	{
 	    this.OnHomePageChanging(value);
	    this.SendPropertyChanging();
            this._HomePage = value;
	    this.SendPropertyChanged("HomePage");
            this.OnHomePageChanged();
	}
    }
}

Version Information

.NET Framework
Available since 3.5
Windows Phone Silverlight
Available since 7.1