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InitializeLayout Event (UltraGrid)

Occurs when the display layout is initialized, such as when the control is loading data from the data source.
Syntax
'Declaration
 
Public Event InitializeLayout As InitializeLayoutEventHandler
public event InitializeLayoutEventHandler InitializeLayout
Event Data

The event handler receives an argument of type InitializeLayoutEventArgs containing data related to this event. The following InitializeLayoutEventArgs properties provide information specific to this event.

PropertyDescription
Layout UltraGridLayout
Remarks

The InitializeLayoutEventArgs.Layout argument returns a reference to a UltraGridBase.DisplayLayout object that can be used to set properties of, and invoke methods on, the layout of the control. You can use this reference to access any of the returned layout's properties or methods.

Like a form's Load event, this event provides an opportunity to configure the control before it is displayed. It is in this event procedure that actions such as creating appearances, valuelists, and unbound columns should take place.

This event is generated when the control is first preparing to display data from the data source. This may occur when the data source changes.

Example
InitializeLayout event is a good place to initialize the grid. Following code sets some of the commonly used properties on the grid.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinGrid

  Private Sub UltraGrid1_InitializeLayout(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs) Handles ultraGrid1.InitializeLayout

      ' Enable row filtering on the first band only and set the RowFilterMode to
      ' AllRowInBand which dictates that the UltraGrid use UltraGridBand.ColumnFilters 
      ' rather than RowsCollection.ColumnFilters.
      e.Layout.Bands(0).Override.AllowRowFiltering = DefaultableBoolean.True
      e.Layout.Bands(0).Override.RowFilterMode = RowFilterMode.AllRowsInBand

      ' Set the AllowRowSummaries to either True or BasedOnDataType to allow
      ' the user to be able to add, remove or modify summaries. This is not 
      ' necessary to create summaries programmatically and only effects the 
      ' users ability to create, remove or modify summaries.
      e.Layout.Bands(2).Override.AllowRowSummaries = AllowRowSummaries.BasedOnDataType

      ' You can also prevent the user from adding, removing or modifying a
      ' summary on a column basis. This prevents the user from summarizing OrderID 
      ' and ProductID columns.
      e.Layout.Bands(2).Columns("OrderID").AllowRowSummaries = AllowRowSummaries.False
      e.Layout.Bands(2).Columns("ProductID").AllowRowSummaries = AllowRowSummaries.False

      ' Set the HeaderClickAction to SortMulti to allow the user to sort 
      ' columns by clickin on the column headers.
      e.Layout.Override.HeaderClickAction = HeaderClickAction.SortMulti

      ' Set various appearances using Override. Override off the DisplayLayout sets 
      ' grid-wide appearances while Override off individual bands sets the appearances
      ' for that particular band.
      e.Layout.Override.CellAppearance.BackColor = Color.LightCyan

      ' You can override these for a specific band, in this case band 2.
      e.Layout.Bands(2).Override.CellAppearance.BackColor = Color.Beige

      ' You can also override appearance for individual columns.
      e.Layout.Bands(0).Columns("CustomerID").CellAppearance.ForeColor = Color.Gray

      ' Set the CustomerID column's VisiblePosition to 0 so it's the first column
      ' on the display.
      e.Layout.Bands(0).Columns("CustomerID").Header.VisiblePosition = 0

  End Sub
using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinGrid;
using System.Diagnostics;

private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
{	
		
	// Enable row filtering on the first band only and set the RowFilterMode to
	// AllRowInBand which dictates that the UltraGrid use UltraGridBand.ColumnFilters 
	// rather than RowsCollection.ColumnFilters.
	e.Layout.Bands[0].Override.AllowRowFiltering = DefaultableBoolean.True;
	e.Layout.Bands[0].Override.RowFilterMode = RowFilterMode.AllRowsInBand;

	// Set the AllowRowSummaries to either True or BasedOnDataType to allow
	// the user to be able to add, remove or modify summaries. This is not 
	// necessary to create summaries programmatically and only effects the 
	// users ability to create, remove or modify summaries.
	e.Layout.Bands[2].Override.AllowRowSummaries = AllowRowSummaries.BasedOnDataType;

	// You can also prevent the user from adding, removing or modifying a
	// summary on a column basis. This prevents the user from summarizing OrderID 
	// and ProductID columns.
	e.Layout.Bands[2].Columns["OrderID"].AllowRowSummaries = AllowRowSummaries.False;
	e.Layout.Bands[2].Columns["ProductID"].AllowRowSummaries = AllowRowSummaries.False;

	// Set the HeaderClickAction to SortMulti to allow the user to sort 
	// columns by clickin on the column headers.
	e.Layout.Override.HeaderClickAction = HeaderClickAction.SortMulti;

	// Set various appearances using Override. Override off the DisplayLayout sets 
	// grid-wide appearances while Override off individual bands sets the appearances
	// for that particular band.
	e.Layout.Override.CellAppearance.BackColor = Color.LightCyan;

	// You can override these for a specific band, in this case band 2.
	e.Layout.Bands[2].Override.CellAppearance.BackColor = Color.Beige;

	// You can also override appearance for individual columns.
	e.Layout.Bands[0].Columns["CustomerID"].CellAppearance.ForeColor = Color.Gray;

	// Set the CustomerID column's VisiblePosition to 0 so it's the first column
	// on the display.
	e.Layout.Bands[0].Columns["CustomerID"].Header.VisiblePosition = 0;

}
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also