BandedGridView.Columns Property

Provides access to the column collection.

Namespace: DevExpress.XtraGrid.Views.BandedGrid

Assembly: DevExpress.XtraGrid.v23.2.dll

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

Declaration

C#

[Browsable(false)]
[XtraSerializableProperty(XtraSerializationVisibility.Collection, true, true, true, 0, XtraSerializationFlags.DefaultValue)]
[XtraSerializablePropertyId(2)]
public BandedGridColumnCollection Columns { get; }

VB.NET

<Browsable(False)>
<XtraSerializableProperty(XtraSerializationVisibility.Collection, True, True, True, 0, XtraSerializationFlags.DefaultValue)>
<XtraSerializablePropertyId(2)>
Public ReadOnly Property Columns As BandedGridColumnCollection

Property Value

Type	Description
BandedGridColumnCollection	A BandedGridColumnCollection object representing the View’s column collection.

Remarks

Use the Columns property to access an object that manages the View’s columns. You can use this property as an indexer to access columns by their indexes or bound field names. The GridBandColumnCollection.Add and GridBandColumnCollection.Remove methods enable you to add new or delete existing columns.

The Columns property overrides the ColumnView.Columns property since Banded Grid Views use BandedGridColumn objects to represent their columns. Please refer to the Columns topic for details.

Example

This example shows how to create a GridControl, while presenting its underlying data using a banded grid format (BandedGridView). The example creates three bands (Main, Address and Phone), adds columns to the bands and customizes the background color for the third band and its columns.

C#

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.BandedGrid;

namespace DXApplication {
    public partial class Form1 : XtraForm {
        public Form1() {
            InitializeComponent();
            this.Load += Form1_Load;
        }
        private void Form1_Load(object sender, EventArgs e) {
            GridControl gridControl1 = new GridControl() { Parent = this, Dock = DockStyle.Fill };

            BandedGridView bandedGridView1 = new BandedGridView(gridControl1);
            GridBand gridBandMain = new GridBand() { Caption = "Main", VisibleIndex = 0 };
            GridBand gridBandAddress = new GridBand() { Caption = "Address", VisibleIndex = 1 };
            GridBand gridBandPhone = new GridBand() { Caption = "Phone", VisibleIndex = 2 };
            BandedGridColumn colCity = new BandedGridColumn() { FieldName = "City", Visible = true };
            BandedGridColumn colCompanyName = new BandedGridColumn() { FieldName = "CompanyName", Visible = true };
            BandedGridColumn colContactName = new BandedGridColumn() { FieldName = "ContactName", Visible = true };
            BandedGridColumn colCountry = new BandedGridColumn() { FieldName = "Country", Visible = true };
            BandedGridColumn colPhone = new BandedGridColumn() { FieldName = "Phone", Visible = true };
            BandedGridColumn colFax = new BandedGridColumn() { FieldName = "Fax", Visible = true };

            gridControl1.DataSource = new List<DataRecord>() {
                new DataRecord(){ City = "LA", CompanyName = "My Company", ContactName = "John White",
                   Country = "USA",  Fax = "555-2211", Phone = "555-2212" }
            };
            gridControl1.ViewCollection.Add(bandedGridView1);
            gridControl1.MainView = bandedGridView1;

            bandedGridView1.Bands.AddRange(new GridBand[] { gridBandMain, gridBandAddress, gridBandPhone });
            bandedGridView1.Columns.AddRange(new BandedGridColumn[] { colCompanyName, colContactName, colCity, colCountry, colPhone, colFax });

            colPhone.AppearanceCell.BackColor = System.Drawing.Color.PowderBlue;
            colPhone.AppearanceCell.Options.UseBackColor = true;
            colPhone.AppearanceHeader.BackColor = System.Drawing.Color.PowderBlue;
            colPhone.AppearanceHeader.Options.UseBackColor = true;

            colFax.AppearanceCell.BackColor = System.Drawing.Color.PowderBlue;
            colFax.AppearanceCell.Options.UseBackColor = true;
            colFax.AppearanceHeader.BackColor = System.Drawing.Color.PowderBlue;
            colFax.AppearanceHeader.Options.UseBackColor = true;

            gridBandMain.Columns.Add(colCompanyName);
            gridBandMain.Columns.Add(colContactName);

            gridBandAddress.Columns.Add(colCountry);
            gridBandAddress.Columns.Add(colCity);

            gridBandPhone.AppearanceHeader.BackColor = System.Drawing.Color.LightBlue;
            gridBandPhone.AppearanceHeader.Options.UseBackColor = true;
            gridBandPhone.Columns.Add(colPhone);
            gridBandPhone.Columns.Add(colFax);

            bandedGridView1.OptionsCustomization.AllowChangeColumnParent = false;
        }
    }

    public class DataRecord {
        public string CompanyName{ get; set; }
        public string ContactName { get; set; }
        public string City { get; set; }
        public string Country { get; set; }
        public string Phone { get; set; }
        public string Fax { get; set; }
    }
}

VB.NET

Imports System
Imports System.Collections.Generic
Imports System.Windows.Forms
Imports DevExpress.XtraEditors
Imports DevExpress.XtraGrid
Imports DevExpress.XtraGrid.Views.BandedGrid

Namespace DXApplication
    Partial Public Class Form1
        Inherits XtraForm

        Public Sub New()
            InitializeComponent()
            AddHandler Me.Load, AddressOf Form1_Load
        End Sub
        Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
            Dim gridControl1 As New GridControl() With {
                .Parent = Me,
                .Dock = DockStyle.Fill
            }

            Dim bandedGridView1 As New BandedGridView(gridControl1)
            Dim gridBandMain As New GridBand() With {
                .Caption = "Main",
                .VisibleIndex = 0
            }
            Dim gridBandAddress As New GridBand() With {
                .Caption = "Address",
                .VisibleIndex = 1
            }
            Dim gridBandPhone As New GridBand() With {
                .Caption = "Phone",
                .VisibleIndex = 2
            }
            Dim colCity As New BandedGridColumn() With {
                .FieldName = "City",
                .Visible = True
            }
            Dim colCompanyName As New BandedGridColumn() With {
                .FieldName = "CompanyName",
                .Visible = True
            }
            Dim colContactName As New BandedGridColumn() With {
                .FieldName = "ContactName",
                .Visible = True
            }
            Dim colCountry As New BandedGridColumn() With {
                .FieldName = "Country",
                .Visible = True
            }
            Dim colPhone As New BandedGridColumn() With {
                .FieldName = "Phone",
                .Visible = True
            }
            Dim colFax As New BandedGridColumn() With {
                .FieldName = "Fax",
                .Visible = True
            }

            gridControl1.DataSource = New List(Of DataRecord)() From {
                New DataRecord() With {
                    .City = "LA",
                    .CompanyName = "My Company",
                    .ContactName = "John White",
                    .Country = "USA",
                    .Fax = "555-2211",
                    .Phone = "555-2212"
                }
            }
            gridControl1.ViewCollection.Add(bandedGridView1)
            gridControl1.MainView = bandedGridView1

            bandedGridView1.Bands.AddRange(New GridBand() { gridBandMain, gridBandAddress, gridBandPhone })
            bandedGridView1.Columns.AddRange(New BandedGridColumn() { colCompanyName, colContactName, colCity, colCountry, colPhone, colFax })

            colPhone.AppearanceCell.BackColor = System.Drawing.Color.PowderBlue
            colPhone.AppearanceCell.Options.UseBackColor = True
            colPhone.AppearanceHeader.BackColor = System.Drawing.Color.PowderBlue
            colPhone.AppearanceHeader.Options.UseBackColor = True

            colFax.AppearanceCell.BackColor = System.Drawing.Color.PowderBlue
            colFax.AppearanceCell.Options.UseBackColor = True
            colFax.AppearanceHeader.BackColor = System.Drawing.Color.PowderBlue
            colFax.AppearanceHeader.Options.UseBackColor = True

            gridBandMain.Columns.Add(colCompanyName)
            gridBandMain.Columns.Add(colContactName)

            gridBandAddress.Columns.Add(colCountry)
            gridBandAddress.Columns.Add(colCity)

            gridBandPhone.AppearanceHeader.BackColor = System.Drawing.Color.LightBlue
            gridBandPhone.AppearanceHeader.Options.UseBackColor = True
            gridBandPhone.Columns.Add(colPhone)
            gridBandPhone.Columns.Add(colFax)

            bandedGridView1.OptionsCustomization.AllowChangeColumnParent = False
        End Sub
    End Class

    Public Class DataRecord
        Public Property CompanyName() As String
        Public Property ContactName() As String
        Public Property City() As String
        Public Property Country() As String
        Public Property Phone() As String
        Public Property Fax() As String
    End Class
End Namespace