This topic has not yet been rated - Rate this topic

MergeOption Enumeration

Silverlight

Determines the synchronization option for sending or receiving entities to or from a data service.

Namespace: System.Data.Services.Client
Assembly: System.Data.Services.Client (in System.Data.Services.Client.dll)

Syntax

public enum MergeOption

Members

	Member name	Description
	AppendOnly	Append new entities only. Existing entities or their original values will not be modified. No client-side changes are lost in this merge. This is the default behavior.
	OverwriteChanges	All current values on the client are overwritten with current values from the data service regardless of whether they have been changed on the client.
	PreserveChanges	Current values that have been changed on the client are not modified, but any unchanged values are updated with current values from the data service. No client-side changes are lost in this merge.
	NoTracking	Objects are always loaded from the data source. Any property changes made to objects in the object context are overwritten by the data source values.

Remarks

This value is used when materializing objects. Set this property to the appropriate materialization option before executing any queries or updates to the data service. The default value is MergeOption.AppendOnly.

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Reference

System.Data.Services.Client Namespace

Other Resources

Object Materialization (WCF Data Services)

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Additions

ADD