ChildRelationCount Property (SheetView)

Gets the number of child views in a hierarchical display for this sheet.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable ReadOnly Property ChildRelationCount As Integer

'Usage
 
Dim instance As SheetView
Dim value As Integer
 
value = instance.ChildRelationCount

public virtual int ChildRelationCount {get;}

Property Value

Integer number of child relation sheets for this parent sheet.

Remarks

This property is available at run time only.

Example

This example returns the number of child relations.

FarPoint.Web.Spread.SheetView sv;
sv = FpSpread1.ActiveSheetView;
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"]);
sv.DataSource = ds;  
sv.SetColumnWidth(2, 150);
int i; 
i = sv.ChildRelationCount;
TextBox1.Text = i.ToString();

Visual Basic

Dim sv As FarPoint.Web.Spread.SheetView
sv = FpSpread1.ActiveSheetView
Dim ds As 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", Type.GetType("System.String")), New DataColumn("FirstName",Type.GetType("System.String")),
New DataColumn("ID", Type.GetType("System.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", Type.GetType("System.String")), New DataColumn("Owner", Type.GetType("System.Int32")),New
DataColumn("State", Type.GetType("System.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"))
sv.DataSource = ds
sv.SetColumnWidth(2, 150)
Dim i As Integer
i = sv.ChildRelationCount()
TextBox1.Text = i.ToString()

Requirements

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

Reference

SheetView Class
SheetView Members

User-Task Documentation

Displaying Data as a Hierarchy