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AcceptRejectRule Enumeration

Determines the action that occurs when the AcceptChanges or RejectChanges method is invoked on a DataTable with a ForeignKeyConstraint.

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

public enum AcceptRejectRule

Member nameDescription
Supported by the .NET Compact FrameworkSupported by the XNA FrameworkNoneNo action occurs (default).
Supported by the .NET Compact FrameworkSupported by the XNA FrameworkCascadeChanges are cascaded across the relationship.

Changes to a DataTable are not final until you call the AcceptChanges method. When either AcceptChanges or RejectChanges is called on a row in the parent table, the AcceptRejectRule value determines whether or not changes are propagated to corresponding rows in the child table.

The following example creates a ForeignKeyConstraint, sets various of its properties, including the AcceptRejectRule, and adds it to a DataTable object's ConstraintCollection.

private void CreateConstraint(DataSet dataSet, 
    string table1, string table2,string column1, string column2)
{
   // Declare parent column and child column variables.
   DataColumn parentColumn;
   DataColumn childColumn;
   ForeignKeyConstraint foreignKeyConstraint;

   // Set parent and child column variables.
   parentColumn = dataSet.Tables[table1].Columns[column1];
   childColumn = dataSet.Tables[table2].Columns[column2];
   foreignKeyConstraint = new ForeignKeyConstraint
      ("SupplierForeignKeyConstraint",  parentColumn, childColumn);

   // Set null values when a value is deleted.
   foreignKeyConstraint.DeleteRule = Rule.SetNull;
   foreignKeyConstraint.UpdateRule = Rule.Cascade;
   foreignKeyConstraint.AcceptRejectRule = AcceptRejectRule.None;

   // Add the constraint, and set EnforceConstraints to true.
   dataSet.Tables[table1].Constraints.Add(foreignKeyConstraint);
   dataSet.EnforceConstraints = true;
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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