Spread ASP.NET 14
FarPoint.Web.Spread Assembly / FarPoint.Web.Spread Namespace / SheetView Class / DataKeyField Property
Example


In This Topic
    DataKeyField Property (SheetView)
    In This Topic
    Gets or sets the data key for this sheet.
    Syntax
    'Declaration
     
    Public Property DataKeyField As Object
    'Usage
     
    Dim instance As SheetView
    Dim value As Object
     
    instance.DataKeyField = value
     
    value = instance.DataKeyField
    public object DataKeyField {get; set;}

    Property Value

    Object containing the data key
    Remarks

    This property is available at run time only.

    This property gets or sets the DataKeyField object for this sheet. This property gets the identifier for a row.

    Example
    This example binds the SheetView to a database using several of its properties.
    FarPoint.Web.Spread.SheetView sv = FpSpread1.ActiveSheetView;
    string conStr = "Provider=Microsoft.JET.OLEDB.4.0;data source=d:\\nwind.mdb";
    string sqlStr = "SELECT * FROM Employees";
    System.Data.OleDb.OleDbConnection conn  = new System.Data.OleDb.OleDbConnection(conStr);
    DataSet ds = new DataSet();
    System.Data.OleDb.OleDbDataAdapter da = new System.Data.OleDb.OleDbDataAdapter(sqlStr, conn);
    sv.DataMember = "Employees";
    da.Fill(ds, sv.DataMember);
    sv.DataSource = ds;
    conn.Close();
    sv.DataKeyField = "LastName";
    
    Dim sv As FarPoint.Web.Spread.SheetView
    sv = FpSpread1.ActiveSheetView
    Dim conStr As String = "Provider=Microsoft.JET.OLEDB.4.0;data source=d:\\nwind.mdb"
    Dim sqlStr As String = "SELECT * FROM Employees"
    Dim conn As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(conStr)
    Dim ds As DataSet = New DataSet()
    Dim da As System.Data.OleDb.OleDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter(sqlStr, conn)
    sv.DataMember = "Employees"
    da.Fill(ds, sv.DataMember)
    sv.DataSource = ds
    conn.Close()
    sv.DataKeyField = "LastName"
    See Also