Spread for ASP.NET 13 Product Documentation
FarPoint.Web.Spread Assembly / FarPoint.Web.Spread.Model Namespace / IChildModelSupport Interface / GetChildRelation Method
Index to the child relation
Example


In This Topic
    GetChildRelation Method (IChildModelSupport)
    In This Topic
    Gets the name of the child data relation at the specified position.
    Syntax
    'Declaration
     
    Function GetChildRelation( _
       ByVal index As Integer _
    ) As String
    'Usage
     
    Dim instance As IChildModelSupport
    Dim index As Integer
    Dim value As String
     
    value = instance.GetChildRelation(index)
    string GetChildRelation( 
       int index
    )

    Parameters

    index
    Index to the child relation

    Return Value

    String containing the name of the child data relation
    Example
    string conStr = "Provider=Microsoft.JET.OLEDB.4.0;data source= d:\\Patients2000.mdb"; 
    string sqlStr = "SELECT * FROM Patients"; 
    System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection(conStr); 
    DataSet ds = new DataSet(); 
    System.Data.OleDb.OleDbDataAdapter daCust = new System.Data.OleDb.OleDbDataAdapter(sqlStr, conn); 
    daCust.Fill(ds, "Patients"); 
    System.Data.OleDb.OleDbDataAdapter daOrder = new System.Data.OleDb.OleDbDataAdapter(sqlStr, conn); 
    daOrder.Fill(ds, "Appointment"); 
    DataRelation rel = new DataRelation("PatientRel", ds.Tables["Patients"].Columns["LName"], ds.Tables["Appointment"].Columns["LName"]);
    
    ds.Relations.Add(rel); 
    FpSpread1.DataSource = ds; 
    FarPoint.Web.Spread.Model.IChildModelSupport cModel;
    FarPoint.Web.Spread.Model.ISheetDataModel iModel;
    Dim s As String;
    cModel = (FarPoint.Web.Spread.Model.IChildModelSupport)FpSpread1.ActiveSheetView.DataModel;
    s = cModel.GetChildRelation(0);
    iModel = cModel.GetChildDataModel(0, s);
    Response.Write(The name of the child relation is " + s);
    
    private void FpSpread1ChildViewCreated(object sender, FarPoint.Web.Spread.CreateChildViewEventArgs e)
    {
        FarPoint.Web.Spread.Model.IChildModelSupport mTest; 
        mTest = (FarPoint.Web.Spread.Model.IChildModelSupport)e.SheetView.DataModel; 
        Response.Write("The parent index is " + mTest.ParentRelationIndex.ToString()); 
    }
    
    Dim conStr As String = "Provider=Microsoft.JET.OLEDB.4.0;data source= d:\Patients2000.mdb"
    Dim sqlStr As String = "SELECT * FROM Patients"
    Dim conn As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(conStr)
    Dim ds As DataSet = New DataSet
    Dim daCust As System.Data.OleDb.OleDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter(sqlStr, conn)
    daCust.Fill(ds, "Patients")
    Dim daOrder As System.Data.OleDb.OleDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter(sqlStr, conn)
    daOrder.Fill(ds, "Appointment")
    Dim rel = New DataRelation("PatientRel", ds.Tables("Patients").Columns("LName"), ds.Tables("Appointment").Columns("LName"))
    ds.Relations.Add(rel)
    FpSpread1.DataSource = ds
    Dim cModel As FarPoint.Web.Spread.Model.IChildModelSupport
    Dim iModel As FarPoint.Web.Spread.Model.ISheetDataModel
    Dim s As String
    cModel = FpSpread1.ActiveSheetView.DataModel
    s = cModel.GetChildRelation(0)
    iModel = cModel.GetChildDataModel(0, s)
    Response.Write(The name of the child relation is " & s)
    
    Private Sub FpSpread1ChildViewCreated(ByVal sender As Object, ByVal e As FarPoint.Web.Spread.CreateChildViewEventArgs) Handles
    FpSpread1.ChildViewCreated
        Dim mTest As FarPoint.Web.Spread.Model.IChildModelSupport
        mTest = e.SheetView.DataModel
        Response.Write("The parent index is " & Convert.ToString(mTest.ParentRelationIndex))
    End Sub
    See Also