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DataTable.GetChanges Method

Gets a copy of the DataTable that contains all changes made to it since it was loaded or AcceptChanges was last called.

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

public DataTable GetChanges()

Return Value

Type: System.Data.DataTable
A copy of the changes from this DataTable, or null if no changes are found.

Creates a new DataSet containing a copy of all rows in the original DataSet that have pending changes. Relationship constraints can cause additional unchanged rows to be added to the new DataSet if the unchanged rows contain primary keys corresponding to foreign keys in the changed rows. The method returns null (Nothing in Visual Basic) if there are no rows in the original DataSet with pending changes.


private void UpdateDataTable(DataTable table, 
    OleDbDataAdapter myDataAdapter)
{
    DataTable xDataTable = table.GetChanges();

    // Check the DataTable for errors.
    if (xDataTable.HasErrors)
    {
        // Insert code to resolve errors.
    }

    // After fixing errors, update the database with the DataAdapter 
    myDataAdapter.Update(xDataTable);
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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