MergeJoinFilter Class

           // Define the Publisher and publication names.
            string publisherName = publisherInstance;
            string publicationName = "AdvWorksSalesOrdersMerge";
            string publicationDbName = "AdventureWorks2008R2";

            // Specify article names.
            string articleName1 = "Employee";
            string articleName2 = "SalesOrderHeader";
            string articleName3 = "SalesOrderDetail";

            // Specify join filter information.
            string filterName12 = "SalesOrderHeader_Employee";
            string filterClause12 = "Employee.BusinessEntityID = " +
                "SalesOrderHeader.SalesPersonID";
            string filterName23 = "SalesOrderDetail_SalesOrderHeader";
            string filterClause23 = "SalesOrderHeader.SalesOrderID = " +
                "SalesOrderDetail.SalesOrderID";

            string salesSchema = "Sales";
            string hrSchema = "HumanResources";

            MergeArticle article1 = new MergeArticle();
            MergeArticle article2 = new MergeArticle();
            MergeArticle article3 = new MergeArticle();
            MergeJoinFilter filter12 = new MergeJoinFilter();
            MergeJoinFilter filter23 = new MergeJoinFilter();

            // Create a connection to the Publisher.
            ServerConnection conn = new ServerConnection(publisherName);

            // Create three merge articles that are horizontally partitioned
            // using a parameterized row filter on Employee.BusinessEntityID, which is 
            // extended to the two other articles using join filters. 
            try
            {
                // Connect to the Publisher.
                conn.Connect();

                // Create each article. 
                // For clarity, each article is defined separately. 
                // In practice, iterative structures and arrays should 
                // be used to efficiently create multiple articles.

                // Set the required properties for the Employee article.
                article1.ConnectionContext = conn;
                article1.Name = articleName1;
                article1.DatabaseName = publicationDbName;
                article1.SourceObjectName = articleName1;
                article1.SourceObjectOwner = hrSchema;
                article1.PublicationName = publicationName;
                article1.Type = ArticleOptions.TableBased;

                // Define the parameterized filter clause based on Hostname.
                article1.FilterClause = "Employee.LoginID = HOST_NAME()";

                // Set the required properties for the SalesOrderHeader article.
                article2.ConnectionContext = conn;
                article2.Name = articleName2;
                article2.DatabaseName = publicationDbName;
                article2.SourceObjectName = articleName2;
                article2.SourceObjectOwner = salesSchema;
                article2.PublicationName = publicationName;
                article2.Type = ArticleOptions.TableBased;

                // Set the required properties for the SalesOrderDetail article.
                article3.ConnectionContext = conn;
                article3.Name = articleName3;
                article3.DatabaseName = publicationDbName;
                article3.SourceObjectName = articleName3;
                article3.SourceObjectOwner = salesSchema;
                article3.PublicationName = publicationName;
                article3.Type = ArticleOptions.TableBased;

                if (!article1.IsExistingObject) article1.Create();
                if (!article2.IsExistingObject) article2.Create();
                if (!article3.IsExistingObject) article3.Create();

                // Select published columns for SalesOrderHeader.
                // Create an array of column names to vertically filter out.
                // In this example, only one column is removed.
                String[] columns = new String[1];

                columns[0] = "CreditCardApprovalCode";

                // Remove the column.
                article2.RemoveReplicatedColumns(columns);

                // Define a merge filter clauses that filter 
                // SalesOrderHeader based on Employee and 
                // SalesOrderDetail based on SalesOrderHeader. 

                // Parent article.
                filter12.JoinArticleName = articleName1;
                // Child article.
                filter12.ArticleName = articleName2;
                filter12.FilterName = filterName12;
                filter12.JoinUniqueKey = true;
                filter12.FilterTypes = FilterTypes.JoinFilter;
                filter12.JoinFilterClause = filterClause12;

                // Add the join filter to the child article.
                article2.AddMergeJoinFilter(filter12);

                // Parent article.
                filter23.JoinArticleName = articleName2;
                // Child article.
                filter23.ArticleName = articleName3;
                filter23.FilterName = filterName23;
                filter23.JoinUniqueKey = true;
                filter23.FilterTypes = FilterTypes.JoinFilter;
                filter23.JoinFilterClause = filterClause23;

                // Add the join filter to the child article.
                article3.AddMergeJoinFilter(filter23);
            }
            catch (Exception ex)
            {
                // Do error handling here and rollback the transaction.
                throw new ApplicationException(
                    "The filtered articles could not be created", ex);
            }
            finally
            {
                conn.Disconnect();
            }

' Define the Publisher and publication names.
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publicationDbName As String = "AdventureWorks2008R2"

' Specify article names.
Dim articleName1 As String = "Employee"
Dim articleName2 As String = "SalesOrderHeader"
Dim articleName3 As String = "SalesOrderDetail"

' Specify join filter information.
Dim filterName12 As String = "SalesOrderHeader_Employee"
Dim filterClause12 As String = "Employee.BusinessEntityID = " + _
    "SalesOrderHeader.SalesPersonID"
Dim filterName23 As String = "SalesOrderDetail_SalesOrderHeader"
Dim filterClause23 As String = "SalesOrderHeader.SalesOrderID = " + _
    "SalesOrderDetail.SalesOrderID"

Dim salesSchema As String = "Sales"
Dim hrSchema As String = "HumanResources"

Dim article1 As MergeArticle = New MergeArticle()
Dim article2 As MergeArticle = New MergeArticle()
Dim article3 As MergeArticle = New MergeArticle()
Dim filter12 As MergeJoinFilter = New MergeJoinFilter()
Dim filter23 As MergeJoinFilter = New MergeJoinFilter()

' Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)

' Create three merge articles that are horizontally partitioned
' using a parameterized row filter on Employee.BusinessEntityID, which is 
' extended to the two other articles using join filters. 
Try
    ' Connect to the Publisher.
    conn.Connect()

    ' Create each article. 
    ' For clarity, each article is defined separately. 
    ' In practice, iterative structures and arrays should 
    ' be used to efficiently create multiple articles.

    ' Set the required properties for the Employee article.
    article1.ConnectionContext = conn
    article1.Name = articleName1
    article1.DatabaseName = publicationDbName
    article1.SourceObjectName = articleName1
    article1.SourceObjectOwner = hrSchema
    article1.PublicationName = publicationName
    article1.Type = ArticleOptions.TableBased

    ' Define the parameterized filter clause based on Hostname.
    article1.FilterClause = "Employee.LoginID = HOST_NAME()"

    ' Set the required properties for the SalesOrderHeader article.
    article2.ConnectionContext = conn
    article2.Name = articleName2
    article2.DatabaseName = publicationDbName
    article2.SourceObjectName = articleName2
    article2.SourceObjectOwner = salesSchema
    article2.PublicationName = publicationName
    article2.Type = ArticleOptions.TableBased

    ' Set the required properties for the SalesOrderDetail article.
    article3.ConnectionContext = conn
    article3.Name = articleName3
    article3.DatabaseName = publicationDbName
    article3.SourceObjectName = articleName3
    article3.SourceObjectOwner = salesSchema
    article3.PublicationName = publicationName
    article3.Type = ArticleOptions.TableBased

    ' Create the articles, if they do not already exist.
    If article1.IsExistingObject = False Then
        article1.Create()
    End If
    If article2.IsExistingObject = False Then
        article2.Create()
    End If
    If article3.IsExistingObject = False Then
        article3.Create()
    End If

    ' Select published columns for SalesOrderHeader.
    ' Create an array of column names to vertically filter out.
    ' In this example, only one column is removed.
    Dim columns() As String = New String(0) {}

    columns(0) = "CreditCardApprovalCode"

    ' Remove the column.
    article2.RemoveReplicatedColumns(columns)

    ' Define a merge filter clauses that filter 
    ' SalesOrderHeader based on Employee and 
    ' SalesOrderDetail based on SalesOrderHeader. 

    ' Parent article.
    filter12.JoinArticleName = articleName1
    ' Child article.
    filter12.ArticleName = articleName2
    filter12.FilterName = filterName12
    filter12.JoinUniqueKey = True
    filter12.FilterTypes = FilterTypes.JoinFilter
    filter12.JoinFilterClause = filterClause12

    ' Add the join filter to the child article.
    article2.AddMergeJoinFilter(filter12)

    ' Parent article.
    filter23.JoinArticleName = articleName2
    ' Child article.
    filter23.ArticleName = articleName3
    filter23.FilterName = filterName23
    filter23.JoinUniqueKey = True
    filter23.FilterTypes = FilterTypes.JoinFilter
    filter23.JoinFilterClause = filterClause23

    ' Add the join filter to the child article.
    article3.AddMergeJoinFilter(filter23)

Catch ex As Exception
    ' Do error handling here and rollback the transaction.
    Throw New ApplicationException( _
        "The filtered articles could not be created", ex)
Finally
    conn.Disconnect()
End Try