ColumnView.AddNewRow() Method

Adds a new record.

Namespace: DevExpress.XtraGrid.Views.Base

Assembly: DevExpress.XtraGrid.v23.2.dll

NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation

Declaration

C#

public virtual void AddNewRow()

VB.NET

Public Overridable Sub AddNewRow

Remarks

Use the AddNewRow method to add a new record(row) to the View’s underlying data source. The View reflects any changes made to the data source immediately and focuses the new record. However, it’s possible to prevent moving the record focus. For more information, see the Focusing Cells topic.

The AddNewRow method is only available for data sources that support the IBindingList interface. When a new record is added, the data source may initialize certain values (key fields, for instance). Record initialization can also be performed manually by handling the ColumnView.InitNewRow event.

New row can be accepted in a number of ways:

• by moving focus to another row;
• by clicking the End Edit button in the Data Navigator
• by adding another row;
• by calling the ColumnView.UpdateCurrentRow method.

The row can be discarded as follows:

• by pressing the ESC key;
• by clicking the Cancel Edit button in the Data Navigator;
• by calling the ColumnView.CancelUpdateCurrentRow method discards the new row

Immediately after a row is added, you can identify this row with the ColumnView.FocusedRowHandle or GridControl.NewItemRowHandle property. To learn how to access row data, see Modify and Validate Cell Values.

The following sample illustrates how to add a new Data Grid row and instantly set its cell values. Also, see the Add and Remove Rows article for more examples.

C#

using DevExpress.XtraGrid;
using System;
using System.ComponentModel;

namespace SampleGridApplication {
    public partial class Form1 : DevExpress.XtraEditors.XtraForm {
        public Form1() {
            InitializeComponent();
            this.Load += Form1_Load;
            //end-users cannot add rows
            gridView1.OptionsBehavior.AllowAddRows = DevExpress.Utils.DefaultBoolean.False;
        }

        private void Form1_Load(object sender, EventArgs e) {
            //load sample data base
            gridControl1.DataSource = SampleDS();
        }

        private void button1_Click(object sender, EventArgs e) {
            //add a new row
            gridView1.AddNewRow();
            //set a new row cell value. The static GridControl.NewItemRowHandle field allows you to retrieve the added row
            gridView1.SetRowCellValue(GridControl.NewItemRowHandle, gridView1.Columns["Name"], "Please enter new value");
        }

        //sample data source
        public BindingList<Entry> SampleDS() {
            BindingList<Entry> ds = new BindingList<Entry>();
            ds.Add(new Entry("One", 1));
            ds.Add(new Entry("Two", 2));
            ds.Add(new Entry("Three", 3));
            ds.AllowNew = true;
            return ds;
        }
    }

    //sample data source entry
    public class Entry {
        public Entry() { }
        public Entry(string name, Int32 id) {
            Name = name; ID = id;
        }
        public string Name { get; set; }
        public Int32 ID { get; set; }
    }
}

VB.NET

Imports DevExpress.XtraGrid
Imports System
Imports System.ComponentModel

Namespace SampleGridApplication
    Partial Public Class Form1
        Inherits DevExpress.XtraEditors.XtraForm
            Public Sub New()
                InitializeComponent()
                AddHandler Me.Load, AddressOf Form1_Load
                'end-users cannot add rows
                gridView1.OptionsBehavior.AllowAddRows = DevExpress.Utils.DefaultBoolean.False
            End Sub

            Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
                'load sample data base
                gridControl1.DataSource = SampleDS()
            End Sub

            Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs)
                'add a new row
                gridView1.AddNewRow()
                'set a new row cell value. The static GridControl.NewItemRowHandle field allows you to retrieve the added row
                gridView1.SetRowCellValue(GridControl.NewItemRowHandle, gridView1.Columns("Name"), "Please enter new value")
            End Sub

            'sample data source
            Public Function SampleDS() As BindingList(Of Entry)
                Dim ds As New BindingList(Of Entry)()
                ds.Add(New Entry("One", 1))
                ds.Add(New Entry("Two", 2))
                ds.Add(New Entry("Three", 3))
                ds.AllowNew = True
                Return ds
            End Function
    End Class

    'sample data source entry
    Public Class Entry
        Public Sub New()
        End Sub

        Public Sub New(ByVal name As String, ByVal id As Int32)
            Me.Name = name
            Me.ID = id
        End Sub
        Public Property Name() As String
        Public Property ID() As Int32
    End Class
End Namespace

End-users can add new records via the navigator control. An embedded navigator can be enabled via the GridControl.UseEmbeddedNavigator property. For Grid Views, an end-user can also add new rows via the new item row.

Refer to the Add and Remove Rows topic for more details on adding and deleting records via code.

Note

Detail pattern Views do not contain data and they are never displayed within XtraGrid. So, the AddNewRow member must not be invoked for these Views. The AddNewRow member can only be used with Views that display real data within the Grid Control. Use the following methods to access these Views with which an end user interacts at runtime.

• GridControl.MainView - returns the top most View in a grid;
• GridControl.FocusedView - returns the focused View;
• GridControl.DefaultView - returns the currently maximized View;
• the sender parameter of View specific events;
• GridView.GetDetailView - returns a detail clone View for a specific master row.