Back to Devexpress

LayoutViewField Class

windowsforms-devexpress-dot-xtragrid-dot-views-dot-layout-012c131d.md

latest10.6 KB
Original Source

LayoutViewField Class

Represents a data field within cards in a LayoutView View.

Namespace : DevExpress.XtraGrid.Views.Layout

Assembly : DevExpress.XtraGrid.v25.2.dll

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

Declaration

csharp
[ComVisible(false)]
public class LayoutViewField :
    LayoutRepositoryItem
vb
<ComVisible(False)>
Public Class LayoutViewField
    Inherits LayoutRepositoryItem

The following members return LayoutViewField objects:

Remarks

In a Layout View, each data source field is represented by two objects: a LayoutViewColumn and LayoutViewField objects.

Column objects contain various display and behavior settings, while corresponding LayoutViewField objects define the layout of fields within a card (these specify a field’s position, indents, caption visibility and alignment, etc). Specific properties of a LayoutViewColumn and LayoutViewField objects are synchronized (for instance, LayoutViewField.Text and LayoutViewColumn.Caption ).

LayoutViewField objects arranged in a specific manner form a template card. To access this card and customize the layout, use the LayoutView.TemplateCard property. The layout can also be customized using methods provided by the LayoutViewField objects (see Move ).

When a LayoutViewColumn object is created and added to the LayoutView.Columns collection, a corresponding LayoutViewField object is created and added at the bottom of the template card. To access a LayoutViewField object that corresponds to a LayoutViewColumn object, see the LayoutViewColumn.LayoutViewField property. To access a column object for a specific field, see the LayoutViewField.Column property.

See Layout View to learn more.

Example

The following example shows how to create and customize a Layout View in code. In the example, a template card is created, consisting of six fields arranged as in the image below:

Before arranging layout fields in code, ensure that corresponding columns are visible (see LayoutViewColumn.Visible and GridColumnCollection.AddVisible).

csharp
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Layout;
using DevExpress.XtraGrid.Columns;
using DevExpress.XtraLayout;
using DevExpress.XtraLayout.Customization;
using DevExpress.XtraLayout.Utils;
using DevExpress.XtraEditors.Repository;
using DevExpress.XtraEditors.Controls;

GridControl grid = new GridControl();
LayoutView lView = new LayoutView(grid);
grid.MainView = lView;
lView.OptionsBehavior.AutoPopulateColumns = false;

grid.DataSource = employeesBindingSource;
this.Controls.Add(grid);
grid.Dock = DockStyle.Fill;

// Create columns.
LayoutViewColumn colFirstName = lView.Columns.AddVisible("FirstName") as LayoutViewColumn;
LayoutViewColumn colLastName = lView.Columns.AddVisible("LastName") as LayoutViewColumn;
LayoutViewColumn colAddress = lView.Columns.AddVisible("Address") as LayoutViewColumn;
LayoutViewColumn colCity = lView.Columns.AddVisible("City") as LayoutViewColumn;
LayoutViewColumn colCountry = lView.Columns.AddVisible("Country") as LayoutViewColumn;
LayoutViewColumn colPhoto = lView.Columns.AddVisible("Photo") as LayoutViewColumn;

// Access corresponding card fields.
LayoutViewField fieldFirstName = colFirstName.LayoutViewField;
LayoutViewField fieldLastName = colLastName.LayoutViewField;
LayoutViewField fieldAddress = colAddress.LayoutViewField;
LayoutViewField fieldCity = colCity.LayoutViewField;
LayoutViewField fieldCountry = colCountry.LayoutViewField;
LayoutViewField fieldPhoto = colPhoto.LayoutViewField;

// Position the FirstName field to the right of the Photo field.
fieldFirstName.Move(new LayoutItemDragController(fieldFirstName, fieldPhoto,
    InsertLocation.After, LayoutType.Horizontal));

// Position the LastName field below the FirstName field.
fieldLastName.Move(new LayoutItemDragController(fieldLastName, fieldFirstName,
    InsertLocation.After, LayoutType.Vertical));

// Create an Address Info group.
LayoutControlGroup groupAddress = new LayoutControlGroup();
groupAddress.Text = "Address Info";
groupAddress.Name = "addressInfoGroup";

// Move the Address, City and Country fields to this group.
groupAddress.AddItem(fieldAddress);
fieldCity.Move(fieldAddress, InsertType.Bottom);
fieldCountry.Move(fieldCity, InsertType.Bottom);

lView.TemplateCard.AddGroup(groupAddress, fieldLastName, InsertType.Bottom);

// Assign editors to card fields.
RepositoryItemPictureEdit riPictureEdit = grid.RepositoryItems.Add("PictureEdit") as RepositoryItemPictureEdit;
riPictureEdit.SizeMode = PictureSizeMode.Squeeze;
colPhoto.ColumnEdit = riPictureEdit;

// Customize card field options.
colFirstName.Caption = "First Name";
colLastName.Caption = "Last Name";
// Set the card's minimum size.
lView.CardMinSize = new Size(250, 180);

fieldPhoto.TextVisible = false;
fieldPhoto.SizeConstraintsType = SizeConstraintsType.Custom;
fieldPhoto.MaxSize = fieldPhoto.MinSize = new Size(150, 150);
vb
Imports DevExpress.XtraEditors.Controls
Imports DevExpress.XtraEditors.Repository
Imports DevExpress.XtraGrid
Imports DevExpress.XtraGrid.Columns
Imports DevExpress.XtraGrid.Views.Layout
Imports DevExpress.XtraLayout
Imports DevExpress.XtraLayout.Customization
Imports DevExpress.XtraLayout.Utils

Dim grid As GridControl = New GridControl()
Dim lView As LayoutView = New LayoutView(grid)
grid.MainView = lView
lView.OptionsBehavior.AutoPopulateColumns = False
grid.DataSource = employeesBindingSource
Me.Controls.Add(grid)
grid.Dock = DockStyle.Fill

' Create columns.
Dim colFirstName As LayoutViewColumn = TryCast(lView.Columns.AddVisible("FirstName"), LayoutViewColumn)
Dim colLastName As LayoutViewColumn = TryCast(lView.Columns.AddVisible("LastName"), LayoutViewColumn)
Dim colAddress As LayoutViewColumn = TryCast(lView.Columns.AddVisible("Address"), LayoutViewColumn)
Dim colCity As LayoutViewColumn = TryCast(lView.Columns.AddVisible("City"), LayoutViewColumn)
Dim colCountry As LayoutViewColumn = TryCast(lView.Columns.AddVisible("Country"), LayoutViewColumn)
Dim colPhoto As LayoutViewColumn = TryCast(lView.Columns.AddVisible("Photo"), LayoutViewColumn)

' Access corresponding card fields.
Dim fieldFirstName As LayoutViewField = colFirstName.LayoutViewField
Dim fieldLastName As LayoutViewField = colLastName.LayoutViewField
Dim fieldAddress As LayoutViewField = colAddress.LayoutViewField
Dim fieldCity As LayoutViewField = colCity.LayoutViewField
Dim fieldCountry As LayoutViewField = colCountry.LayoutViewField
Dim fieldPhoto As LayoutViewField = colPhoto.LayoutViewField

' Position the FirstName field to the right of the Photo field.
fieldFirstName.Move(New LayoutItemDragController(fieldFirstName, fieldPhoto, InsertLocation.After, LayoutType.Horizontal))
' Position the LastName field below the FirstName field.
fieldLastName.Move(New LayoutItemDragController(fieldLastName, fieldFirstName, InsertLocation.After, LayoutType.Vertical))

' Create an Address Info group.
Dim groupAddress As LayoutControlGroup = New LayoutControlGroup()
groupAddress.Text = "Address Info"
groupAddress.Name = "addressInfoGroup"
groupAddress.AddItem(fieldAddress)
' Move the Address, City and Country fields to this group.
fieldCity.Move(fieldAddress, InsertType.Bottom)
fieldCountry.Move(fieldCity, InsertType.Bottom)
lView.TemplateCard.AddGroup(groupAddress, fieldLastName, InsertType.Bottom)

' Assign editors to card fields.
Dim riPictureEdit As RepositoryItemPictureEdit = TryCast(grid.RepositoryItems.Add("PictureEdit"), RepositoryItemPictureEdit)
riPictureEdit.SizeMode = PictureSizeMode.Squeeze
colPhoto.ColumnEdit = riPictureEdit

' Customize card field options
colFirstName.Caption = "First Name"
colLastName.Caption = "Last Name"
' Set the card's minimum size.
lView.CardMinSize = New Size(350, 200)

fieldPhoto.TextVisible = False
fieldPhoto.SizeConstraintsType = SizeConstraintsType.Custom
fieldPhoto.MaxSize = New Size(150, 150)
fieldPhoto.MinSize = fieldPhoto.MaxSize

Inheritance

Object MarshalByRefObject Component DevExpress.XtraLayout.SupportVisitor BaseLayoutItem LayoutItem LayoutControlItem LayoutRepositoryItem LayoutViewField

See Also

LayoutViewField Members

LayoutViewField

Column

TemplateCard

Layout View

DevExpress.XtraGrid.Views.Layout Namespace