Spread for ASP.NET 9.0 Product Documentation
DataMember Property (DefaultSheetDataModel)
Example 


Gets or sets the data member (table name) to use for data.
Syntax
'Declaration
 
Public Property DataMember As String
'Usage
 
Dim instance As DefaultSheetDataModel
Dim value As String
 
instance.DataMember = value
 
value = instance.DataMember
public string DataMember {get; set;}

Property Value

String containing the name of data member
Example
This example creates a DefaultSheetDataModel and assigns it to the DataModel of the spreadsheet. The data source of the model is attached to some DataTables and the ParentRelationName and ParentRowIndex are returned to a list box.
Private Sub Page_Load(ByVal sender As System.Object,ByVal e As System.EventArgs)Handles MyBase.Load

If(IsPostBack)Then Return

Dim ds As New System.Data.DataSet()
Dim dm As New FarPoint.Web.Spread.Model.DefaultSheetDataModel()
FpSpread1.ActiveSheetView.DataModel=dm
FpSpread1.HierarchicalView=True

Dim emp As DataTable=New DataTable("Employee")
Dim dept As DataTable=New DataTable("Department")

Dim lname As DataColumn = New DataColumn("LastName",GetType(System.String))
Dim fname As DataColumn = New DataColumn("FirstName",GetType(System.String))

Dim dname As DataColumn = New DataColumn("DeptName",GetType(System.String))
Dim area As DataColumn = New DataColumn("Area",GetType(System.String))

Dim id As DataColumn = emp.Columns.Add("ID",GetType(System.Int32))
id.AutoIncrement=True
Dim primarykey As DataColumn() = New DataColumn(){id}
emp.PrimaryKey=primarykey
emp.Columns.Add(lname)
emp.Columns.Add(fname)

id=dept.Columns.Add("ID",GetType(System.Int32))
id.AutoIncrement=True
dept.PrimaryKey = New DataColumn(){id}
id.AutoIncrement=True
Dim lang As DataColumn = dept.Columns.Add("Language",GetType(System.Int32))
Dim foreignkey As DataColumn() = New DataColumn(){lang}
dept.Columns.Add(dname)
dept.Columns.Add(area)

ds.Tables.Add(emp)
ds.Tables.Add(dept)

Dim ti As DataRow=emp.NewRow()
ti(lname)="Bazemoreland"
ti(fname)="Ti"
emp.Rows.Add(ti)

Dim ginny As DataRow=emp.NewRow()
ginny(lname)="Danielson"
ginny(fname)="Ginny"
emp.Rows.Add(ginny)

Dim bob As DataRow=emp.NewRow()
bob(lname)="Morrison"
bob(fname)="Bob"
emp.Rows.Add(bob)

Dim rel As DataRelation= New DataRelation("FarPoint",primarykey,foreignkey,False)
ds.Relations.Add(rel)

Dim row As DataRow=dept.NewRow()
row("Language")=ti("ID")
row(dname)="TechSupport"
row(area)="C#"
dept.Rows.Add(row)

row=dept.NewRow()
row("Language")=ginny("ID")
row(dname)="TechSupport"
row(area)="VB.Net"
dept.Rows.Add(row)
row=dept.NewRow()
row("Language")=bob("ID")
row(dname)="TechSupport"
row(area)="C#"
dept.Rows.Add(row)
ds.AcceptChanges()
dm.DataSource=ds
dm.DataMember="Employee"

Dim dm2 As FarPoint.Web.Spread.Model.DefaultSheetDataModel
dm2=FpSpread1.Sheets(0).GetChildView(0,0).DataModel
ListBox1.Items.Add(dm2.ParentRelationName)
ListBox1.Items.Add(dm2.ParentRowIndex)
ListBox1.Items.Add(dm.ChildRelationCount)
End Sub
private void Page_Load(object sender,System.EventArgs e)
{
System.Data.DataSet ds = new System.Data.DataSet();
FarPoint.Web.Spread.Model.DefaultSheetDataModel dm;
dm = new FarPoint.Web.Spread.Model.DefaultSheetDataModel();
FpSpread1.ActiveSheetView.DataModel = dm;
FpSpread1.HierarchicalView=true;
DataTable emp = new DataTable("Employee");
DataTable dept = new DataTable("Department");

DataColumn lname = new DataColumn("LastName",typeof(String));
DataColumn fname = new DataColumn("FirstName",typeof(String));

DataColumn dname = new DataColumn("DeptName",typeof(String));
DataColumn area = new DataColumn("Area",typeof(String));

DataColumn id = emp.Columns.Add("ID",typeof(Int32));
id.AutoIncrement=true;
emp.PrimaryKey=new DataColumn[]{id};
emp.Columns.Add(lname);
emp.Columns.Add(fname);

id=dept.Columns.Add("ID",typeof(Int32));
id.AutoIncrement=true;
dept.PrimaryKey=new DataColumn[]{id};
id.AutoIncrement=true;
DataColumnlang=dept.Columns.Add("Language",typeof(Int32));
DataColumn[]foreignkey=new DataColumn[]{lang};
dept.Columns.Add(dname);
dept.Columns.Add(area);

ds.Tables.Add(emp);
ds.Tables.Add(dept);

DataRow ti=emp.NewRow();
ti[lname]="Bazemoreland";
ti[fname]="Ti";
emp.Rows.Add(ti);

DataRow ginny=emp.NewRow();
ginny[lname]="Danielson";
ginny[fname]="Ginny";
emp.Rows.Add(ginny);

DataRow bob=emp.NewRow();
bob[lname]="Morrison";
bob[fname]="Bob";
emp.Rows.Add(bob);

DataRelation rel = new DataRelation("FarPoint",emp.PrimaryKey,foreignkey,false);
ds.Relations.Add(rel);

DataRow row=dept.NewRow();
row["Language"]=ti["ID"];
row[dname]="TechSupport";
row[area]="C#";
dept.Rows.Add(row);

row=dept.NewRow();
row["Language"]=ginny["ID"];
row[dname]="TechSupport";
row[area]="VB.Net";
dept.Rows.Add(row);
row=dept.NewRow();
row["Language"]=bob["ID"];
row[dname]="TechSupport";
row[area]="C#";
dept.Rows.Add(row);
ds.AcceptChanges();
dm.DataSource=ds;
dm.DataMember="Employee";
FarPoint.Web.Spread.Model.DefaultSheetDataModel dm2;
dm2=(FarPoint.Web.Spread.Model.DefaultSheetDataModel)FpSpread1.Sheets[0].GetChildView(0,0).DataModel;
ListBox1.Items.Add(dm2.ParentRelationName);
ListBox1.Items.Add(Convert.ToString(dm2.ParentRowIndex));
ListBox1.Items.Add(Convert.ToString(dm.ChildRelationCount));
}
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

 

 


Copyright © GrapeCity, inc. All rights reserved.