DoPostSaveMerge Extension Method

Overview

Merges a post-save response (returned by the server after applying a changeset) into the current observable data set. This is the merge mode you typically call right after a successful Save:

• Server-assigned values (identity keys, row versions, computed columns) are applied back to the UI baseline.
• Merge results are collected into IObservableDataSetMergeResult for diagnostics or UI refresh decisions.

The method clears observableMergeOptions.ObservableDataSetMergeResult before performing the merge.

Declaration

/// <summary>
/// Merges a post-save response (refreshed data set returned by the server after applying a changeset) into the current
/// observable data set. This is the merge mode you typically call right after a successful Save
/// </summary>
/// <param name="observableDataSet">Observable data set</param>
/// <param name="refreshedDataSet">Refreshed data set</param>
/// <param name="observableMergeOptions">Observable merge options</param>
public static void DoPostSaveMerge(this IObservableDataSet? observableDataSet, IDataSet refreshedDataSet, IObservableMergeOptions observableMergeOptions)

Namespace and Assembly

Namespace: PocoDataSet.ObservableExtensions
Assembly: PocoDataSet.ObservableExtensions.dll

Usage Example

// 1. Assuming observable data set is used for UI binding
IObservableDataSet boundObservableDataSet = new ObservableDataSet();

// The following line is a pseudo-code example of how UI can be bound to the observable data set.
// The actual binding code depends on the UI framework and is not part of POCO DataSet.
somePage.DataContext = boundObservableDataSet;

// 2. UI edits data and sends a changeset to the server.
// After Save, server returns post-save response with identity keys, row versions, computed columns, etc.
// Say, you got the post-save response from the server as IDataSet into postSaveResponseFromServer variable:
IDataSet postSaveResponseFromServer = ...

// 3. Merge the post-save response back to the observable data set by calling DoPostSaveMerge method to update the UI baseline and get merge results.
IObservableMergeOptions options = new ObservableMergeOptions();
boundObservableDataSet.DoPostSaveMerge(postSaveResponseFromServer, options);

 

Table of Content POCO DataSet Observable Data Set Members

 

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Business Process Programming in .Net
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