Spread ASP.NET 6.0 Product Documentation
ChildRelationCount Property
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FarPoint.Web.Spread Assembly > FarPoint.Web.Spread.Model Namespace > IChildModelSupport Interface : ChildRelationCount Property


Glossary Item Box

Gets the number of child data relations.

Syntax

Visual Basic (Declaration) 
ReadOnly Property ChildRelationCount As Integer
Visual Basic (Usage)Copy Code
Dim instance As IChildModelSupport
Dim value As Integer
 
value = instance.ChildRelationCount
C# 
int ChildRelationCount {get;}

Property Value

Integer number of child data relations

Example

C#Copy Code
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; 
int i; 
cModel = (FarPoint.Web.Spread.Model.IChildModelSupport)FpSpread1.ActiveSheetView.DataModel; 
i = cModel.ChildRelationCount; 
Response.Write("The number of child relations " + i.ToString());
Visual BasicCopy Code
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 i As Integer
cModel = FpSpread1.ActiveSheetView.DataModel
i = cModel.ChildRelationCount
Response.Write("The child relation count is " & i.ToString())

Requirements

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

See Also

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