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


Index of the child data relation
Gets the name of the child data relation at the specified position.
Syntax
'Declaration
 
Public Function GetChildRelation( _
   ByVal index As Integer _
) As String
'Usage
 
Dim instance As DefaultSheetDataModel
Dim index As Integer
Dim value As String
 
value = instance.GetChildRelation(index)
public string GetChildRelation( 
   int index
)

Parameters

index
Index of the child data relation

Return Value

String containing the name of the relation
Example
This example returns the value of the first relation for the child model.
DataSet ds = new System.Data.DataSet(); 
DataTable name; 
DataTable city; 
name = ds.Tables.Add("Customers"); 
name.Columns.AddRange(new DataColumn[] {new DataColumn("LastName", typeof(string)), new DataColumn("FirstName", typeof(string)),
new DataColumn("ID", typeof(Int32))}); 
name.Rows.Add(new object[] {"Fielding", "William", 0}); 
name.Rows.Add(new object[] {"Williams", "Arthur", 1}); 
name.Rows.Add(new object[] {"Zuchini", "Theodore", 2}); 
city = ds.Tables.Add("City/State"); 
city.Columns.AddRange(new DataColumn[] {new DataColumn("City", typeof(string)), new DataColumn("Owner", typeof(Int32)), new
DataColumn("State", typeof(string))}); 
city.Rows.Add(new object[] {"Atlanta", 0, "Georgia"}); 
city.Rows.Add(new object[] {"Boston", 1, "Mass."}); 
city.Rows.Add(new object[] {"Tampa", 2, "Fla."}); 
ds.Relations.Add("City/State", name.Columns("ID"), city.Columns("Owner")); 
FarPoint.Web.Spread.Model.DefaultSheetDataModel dataModel = new FarPoint.Web.Spread.Model.DefaultSheetDataModel(name.Rows.Count,
name.Columns.Count); 
dataModel.DataSource = ds; 
FpSpread1.ActiveSheetView.DataModel = dataModel; 
FpSpread1.ActiveSheetView.ExpandRow(0, true); 
string s; 
s = dataModel.GetChildRelation(0); 
Response.Write(s);
Dim ds = New System.Data.DataSet
Dim name As DataTable
Dim city As DataTable
name = ds.Tables.Add("Customers")
name.Columns.AddRange(New DataColumn() {New DataColumn("LastName", GetType(String)), New DataColumn("FirstName", GetType(String)),New
DataColumn("ID", GetType(Int32))})
name.Rows.Add(New Object() {"Fielding", "William", 0})
name.Rows.Add(New Object() {"Williams", "Arthur", 1})
name.Rows.Add(New Object() {"Zuchini", "Theodore", 2})
city = ds.Tables.Add("City/State")
city.Columns.AddRange(New DataColumn() {New DataColumn("City", GetType(String)), New DataColumn("Owner", GetType(Int32)),New
DataColumn("State", GetType(String))})
city.Rows.Add(New Object() {"Atlanta", 0, "Georgia"})
city.Rows.Add(New Object() {"Boston", 1, "Mass."})
city.Rows.Add(New Object() {"Tampa", 2, "Fla."})
ds.Relations.Add("City/State", name.Columns("ID"), city.Columns("Owner"))
Dim dataModel As New FarPoint.Web.Spread.Model.DefaultSheetDataModel(name.Rows.Count, name.Columns.Count)
dataModel.DataSource = ds
FpSpread1.ActiveSheetView.dataModel = dataModel
FpSpread1.ActiveSheetView.ExpandRow(0, True)
Dim s As String
s = dataModel.GetChildRelation(0)
Response.Write(s)
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

DefaultSheetDataModel Class
DefaultSheetDataModel Members

 

 


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