Spread for ASP.NET 9.0 Product Documentation
GetChildRelation Method (IChildModelSupport)
Example 


Index to the child relation
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
Requirements

Target Platforms: Windows 7, Windows 8, Windows 10, Windows Vista, Windows Server 2003, Windows Server 2008, Windows Server 2012, Windows XP Professional

See Also

Reference

IChildModelSupport Interface
IChildModelSupport Members

 

 


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