ModificationResult Class

Represents the result of an update operation on a data store.

Namespace: DevExpress.Xpo.DB

Assembly: DevExpress.Data.v18.1.dll

Declaration

C#

public class ModificationResult

VB.NET

Public Class ModificationResult

Related API Members

The following members accept/return ModificationResult objects:

Library	Related API Members
Cross-Platform Class Library	ConnectionProviderSql.ModifyData(ModificationStatement[])
	DataCacheBase.ModifyData(ModificationStatement[])
	IDataStore.ModifyData(ModificationStatement[])
eXpress Persistent Objects	AccessConnectionProviderMultiUserThreadSafe.ModifyData(ModificationStatement[])
	IDataLayer.ModifyData(ModificationStatement[])
	MSSql2005SqlDependencyCacheRoot.ModifyData(ModificationStatement[])
	SimpleDataLayer.ModifyData(ModificationStatement[])
	ThreadSafeDataLayer.ModifyData(ModificationStatement[])

Remarks

The ModificationResult class contains the result of an update operation on a data store.

When data is modified in a data store, specific information is retrieved back from the store and this contains the result of the update. For instance, for newly inserted rows the data store can retrieve key field values that has been automatically generated by a database.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ModificationResult class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XAF_how-to-prevent-altering-the-legacy-database-schema-when-creating-an-xaf-application-e1150/CS/WinWebSolution.Module/XpoDataStoreProxy.cs#L48

}
public ModificationResult ModifyData(params ModificationStatement[] dmlStatements) {
    List<ModificationStatement> legacyChanges = new List<ModificationStatement>(dmlStatements.Length);

XPO_how-to-prevent-xpo-from-making-any-changes-to-a-legacy-database-e849/CS/ReadOnlyDataStore.cs#L12

public ReadOnlyDataStore(IDataStore nestedProvider) : base(nestedProvider) { }
protected override ModificationResult ProcessModifyData(params ModificationStatement[] dmlStatements) {
    throw new InvalidOperationException("Cannot modify data.");

XPO_how-to-reopen-a-broken-connection-when-using-a-postgresql-database-e3086/CS/SafePostgreSqlConnectionProvider.cs#L81

ModificationResult IDataStore.ModifyData(params ModificationStatement[] dmlStatements) {
    try {

VB.NET

XAF_how-to-prevent-altering-the-legacy-database-schema-when-creating-an-xaf-application-e1150/VB/WinWebSolution.Module/XpoDataStoreProxy.vb#L49

End Property
Public Function ModifyData(ByVal ParamArray dmlStatements() As ModificationStatement) As ModificationResult Implements IDataStore.ModifyData
    Dim legacyChanges As New List(Of ModificationStatement)(dmlStatements.Length)

XPO_how-to-prevent-xpo-from-making-any-changes-to-a-legacy-database-e849/VB/ReadOnlyDataStore.vb#L16

End Sub
Protected Overrides Function ProcessModifyData(ParamArray ByVal dmlStatements() As ModificationStatement) As ModificationResult
    Throw New InvalidOperationException("Cannot modify data.")

XPO_how-to-reopen-a-broken-connection-when-using-a-postgresql-database-e3086/VB/SafePostgreSqlConnectionProvider.vb#L86

Private Function IDataStore_ModifyData(ParamArray ByVal dmlStatements() As ModificationStatement) As ModificationResult Implements IDataStore.ModifyData
    Try

Inheritance

Object

ModificationResult