GridControl Class
Displays data from a data source in various formats (Views): Tabular, Banded Tabular, Cards, Windows UI-inspired Tiles, and Windows Explorer-inspired UI.
Namespace: DevExpress.XtraGrid
Assembly: DevExpress.XtraGrid.v24.1.dll
NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation
Declaration
public class GridControl :
EditorContainer,
IScrollBarAnnotationsOwner<ScrollAnnotationKind>,
IScrollBarOwner,
IPrintableEx,
IPrintable,
IBasePrintable,
IPrintHeaderFooter,
INavigatableControl,
IToolTipControlClient,
IDXManagerPopupMenu,
IViewController,
IFilteredComponent,
IFilteredComponentBase,
IBoundControl,
ISupportXtraSerializer,
IGestureClient,
IGuideDescription,
ISearchControlColumnsClient,
ISearchControlClient,
ILogicalOwner,
ISupportFilterCriteriaDisplayStyle,
IChildAccessibleInfoProviderRemarks
The Data Grid (GridControl) is a container of Views, which display data from a bound list, table, or collection in a specific format.
If you bind the grid to a simple list, table, or collection, a single View is required to display this data. To choose the data display format, set the GridControl.MainView property to any of the following objects:
- GridView - Displays data in a tabular form.
- BandedGridView - Displays data in a tabular form and organizes columns into bands.
- AdvBandedGridView - Displays data in a tabular form and organizes columns into bands. Supports complex data cell arrangements.
- CardView - Displays data records as cards, arranged down and then across. Card fields are always arranged in a single column.
- LayoutView - Displays records as cards in one or more columns, in one or more rows, in an ellipse (carousel mode), or as a single card at a time. Supports complex card field layouts, built-in groups, tabbed groups, and labels.
- TileView - Displays records as tiles, using one of the following layout modes: default (standard table layout), list (tiles have no space between them), and Kanban. This View includes the Tile Template feature, which helps you arrange fields relative to other fields, specify absolute or relative field display bounds, etc. In-place editors are supported when you use HTML-based templates.
- WinExplorerView - Displays records using one of seven styles supported by Microsoft Windows Explorer — Small, Medium, Large, Extra Large, List, Tiles, and Content. Supports HTML-CSS templates that allow you to override the default data presentation in these styles.
If you bind the grid to a table with master-detail relationships, the View you assign to the GridControl.MainView property displays data from the master table, while the detail Views (which you can specify with the GridControl.LevelTree collection) display data from the child tables.
The Data Grid has the following main properties:
- GridControl.DataSource and GridControl.DataMember - Use these properties to bind the control to a data source.
- GridControl.MainView — Allows you to specify the View used to display the top-level list, table, or collection in the bound data source.
- GridControl.LevelTree — Allows you to associate master-detail relationships with Views.
- GridControl.Views — The collection of Views (main and detail Views) that are currently displayed onscreen.
- GridControl.UseEmbeddedNavigator — Allows you to enable the embedded record navigator.
See the following topics to learn more:
Example
The following example creates a GridControl at runtime and shows how to perform basic customization tasks:
- Bind the grid to a data source
- Access the View that displays the underlying data
- Access columns
- Assign an in-place editor (a combo box editor) to a column
- Sort and group data
- Calculate total and group summaries
- Create a filter
- Hide columns and calculate column “best” widths
- Expand group rows
- Focus a specific cell
- Specify DataAnnotation attributes (column display names and data formats) at the data source level
Note
Add the corresponding assemblies to your Windows Forms project.
Read the following topic for information: Redistribution and Deployment.
using System;
using DevExpress.ClipboardSource.SpreadsheetML;
using DevExpress.Data;
using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Repository;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Columns;
using DevExpress.XtraGrid.Views.Grid;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Runtime.CompilerServices;
using System.Windows.Forms;
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() {
Name = "gridControl1",
Parent = this,
Dock = DockStyle.Fill
};
gridControl1.DataSource = DataHelper.GetData(30);
// The grid automatically creates columns for the public fields found in the data source.
// Calling the gridView1.PopulateColumns method is not required unless gridView1.OptionsBehavior.AutoPopulateColumns is disabled.
// The grid automatically creates a GridView that displays the underlying data as a two-dimensional table.
GridView gridView1 = gridControl1.MainView as GridView;
// Obtain created columns.
GridColumn colCompany = gridView1.Columns["CompanyName"];
GridColumn colID = gridView1.Columns["ID"];
GridColumn colDate = gridView1.Columns["RequiredDate"];
GridColumn colPayment = gridView1.Columns["Value"];
GridColumn colProcessed = gridView1.Columns["Processed"];
// The Company column uses a ComboBox in-place editor that shows a list of available companies.
RepositoryItemComboBox riComboBox = new RepositoryItemComboBox();
riComboBox.Items.AddRange(DataHelper.companies);
gridControl1.RepositoryItems.Add(riComboBox);
colCompany.ColumnEdit = riComboBox;
// Hide a column.
colID.Visible = false;
// Group and sort data.
colCompany.GroupIndex = 0;
colDate.SortIndex = 0;
colDate.SortOrder = DevExpress.Data.ColumnSortOrder.Descending;
// Show group columns in the table.
gridView1.OptionsView.ShowGroupedColumns = true;
// Expand group rows.
gridView1.ExpandAllGroups();
// Apply a filter.
gridView1.ActiveFilterString = "[RequiredDate]>= #" + DateTime.Today.ToString() + "#";
// Calculate two total summaries.
colDate.Summary.Add(SummaryItemType.Count, colDate.FieldName, "Count={0}");
colDate.Summary.Add(SummaryItemType.Max, colDate.FieldName, "Max={0:d}");
gridView1.OptionsView.ShowFooter = true;
// Calculate group summaries.
GridGroupSummaryItem item = new GridGroupSummaryItem();
item.FieldName = colCompany.FieldName;
item.SummaryType = DevExpress.Data.SummaryItemType.Count;
gridView1.GroupSummary.Add(item);
GridGroupSummaryItem item1 = new GridGroupSummaryItem();
item1.FieldName = colPayment.FieldName;
item1.SummaryType = SummaryItemType.Sum;
item1.DisplayFormat = "group total={0:c2}";
item1.ShowInGroupColumnFooter = colPayment;
gridView1.GroupSummary.Add(item1);
// Forcibly move group footer summaries to positions in group rows under corresponding column headers.
gridView1.OptionsBehavior.AlignGroupSummaryInGroupRow = DevExpress.Utils.DefaultBoolean.True;
// Focus a specific cell.
gridView1.FocusedRowHandle = 1;
gridView1.FocusedColumn = colCompany;
// Optimize column widths.
colDate.BestFit();
colProcessed.BestFit();
}
}
public class Record : INotifyPropertyChanged {
public Record() {
}
int id;
public int ID {
get { return id; }
set {
if(id != value) {
id = value;
OnPropertyChanged();
}
}
}
string text;
[DisplayName("Company")]
public string CompanyName {
get { return text; }
set {
if(text != value) {
if(string.IsNullOrEmpty(value))
throw new Exception();
text = value;
OnPropertyChanged();
}
}
}
Nullable<decimal> val;
[DataType(System.ComponentModel.DataAnnotations.DataType.Currency)]
[DisplayName("Payment")]
public Nullable<decimal> Value {
get { return val; }
set {
if(val != value) {
val = value;
OnPropertyChanged();
}
}
}
DateTime dt;
[DisplayFormat(DataFormatString = "d")]
public DateTime RequiredDate {
get { return dt; }
set {
if(dt != value) {
dt = value;
OnPropertyChanged();
}
}
}
bool state;
public bool Processed {
get { return state; }
set {
if(state != value) {
state = value;
OnPropertyChanged();
}
}
}
public override string ToString() {
return string.Format("ID = {0}, Text = {1}", ID, CompanyName);
}
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged([CallerMemberName] string propertyName = "") {
if(PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
public class DataHelper {
public static string[] companies = new string[] { "Hanari Carnes", "Que Delícia", "Romero y tomillo", "Mère Paillarde",
"Comércio Mineiro", "Reggiani Caseifici", "Maison Dewey" };
public static BindingList<Record> GetData(int count) {
BindingList<Record> records = new BindingList<Record>();
Random rnd = new Random();
for(int i = 0; i < count; i++) {
int n = rnd.Next(10);
records.Add(new Record() {
ID = i + 100,
CompanyName = companies[i % companies.Length],
RequiredDate = DateTime.Today.AddDays(n - 5),
Value = i % 2 == 0 ? (i + 1) * 123 : i * 231,
Processed = i % 2 == 0,
});
};
return records;
}
}
}
Implements
Inheritance
See Also