InitializeRowsCollectionEventHandler Delegate

Delegate for InitializeRowsCollection event.

Syntax

Visual Basic

'Declaration
 
Public Delegate Sub InitializeRowsCollectionEventHandler( _
   ByVal sender As Object, _
   ByVal e As InitializeRowsCollectionEventArgs _
) 

C#

public delegate void InitializeRowsCollectionEventHandler( 
   object sender,
   InitializeRowsCollectionEventArgs e
)

Parameters

sender

e

Example

Following code demonstrates typical uses for InitializeDataRow and InitializeDataRowsCollection events.

Visual Basic

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


    Private Sub UltraDataSource1_InitializeDataRow(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinDataSource.InitializeDataRowEventArgs) Handles UltraDataSource1.InitializeDataRow
        ' InitializeDataRow event is used for initializing rows. It gets fired for 
        ' each row in the data source when the row is created for the first time.

        Dim row As UltraDataRow = e.Row

        ' You can use the tag off the row to store some piece of data that
        ' aids you in identifying the row later on (for example in other 
        ' event handlers like CellDataRequested).
        row.Tag = New Object()

        ' You can get the row collection that contains the row using 
        ' ParentCollection property.
        Dim parentCollection As UltraDataRowsCollection = e.Row.ParentCollection

        ' You can get the row's index in the parent collection using
        ' Index property.
        Dim rowIndex As Integer = row.Index

        ' You can get the parent row of a row using ParentRow property.
        ' If row is a top-most row, ParentRow will be null.
        Dim parentRow As UltraDataRow = row.ParentRow

        ' You can also see which band the row is associated with.
        Dim rowBand As UltraDataBand = row.Band

        ' You can also intialize the cell values here.
        Dim column As UltraDataColumn
        For Each column In rowBand.Columns
            If GetType(String) Is column.DataType Then
                row(column) = "Test Data"
            End If
        Next

        ' Print out the row index and the band key.
        System.Diagnostics.Debug.WriteLine("Band key = " & e.Row.Band.Key & "Row Index = " & e.Row.Index)
    End Sub

    Private Sub UltraDataSource1_InitializeRowsCollection(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinDataSource.InitializeRowsCollectionEventArgs) Handles UltraDataSource1.InitializeRowsCollection
        ' InitializeRowsCollection event is used for initializing row collections.
        ' It gets fired for each row collection in the data source when it's created 
        ' for the first time.

        Dim parentRow As UltraDataRow = e.Rows.ParentRow
        ' If the parent row is null then it's the root rows collection. Otherwise
        ' it's a child row collection of the parent row.
        If Not Nothing Is parentRow Then
            ' Here typically you set the count based on the parent row.
            e.Rows.SetCount(10)
        End If
    End Sub

C#

using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinDataSource;
using Infragistics.Win.UltraWinGrid;
using System.Diagnostics;


		private void ultraDataSource1_InitializeDataRow(object sender, Infragistics.Win.UltraWinDataSource.InitializeDataRowEventArgs e)
		{
			// InitializeDataRow event is used for initializing rows. It gets fired for 
			// each row in the data source when the row is created for the first time.

			UltraDataRow row = e.Row;

			// You can use the tag off the row to store some piece of data that
			// aids you in identifying the row later on (for example in other 
			// event handlers like CellDataRequested).
			row.Tag = new object( );

			// You can get the row collection that contains the row using 
			// ParentCollection property.
			UltraDataRowsCollection parentCollection = e.Row.ParentCollection;

			// You can get the row's index in the parent collection using
			// Index property.
			int rowIndex = row.Index;

			// You can get the parent row of a row using ParentRow property.
			// If row is a top-most row, ParentRow will be null.
			UltraDataRow parentRow = row.ParentRow;

			// You can also see which band the row is associated with.
			UltraDataBand rowBand = row.Band;

			// You can also intialize the cell values here.
			foreach ( UltraDataColumn column in rowBand.Columns )
			{
				if ( typeof( string ) == column.DataType )
					row[ column ] = "Test Data";
			}

			// Print out the row index and the band key.
			System.Diagnostics.Debug.WriteLine( "Band key = " + e.Row.Band.Key + "Row Index = " + e.Row.Index );
		}

		private void ultraDataSource1_InitializeRowsCollection(object sender, Infragistics.Win.UltraWinDataSource.InitializeRowsCollectionEventArgs e)
		{
			// InitializeRowsCollection event is used for initializing row collections.
			// It gets fired for each row collection in the data source when it's created 
			// for the first time.

			UltraDataRow parentRow = e.Rows.ParentRow;
			// If the parent row is null then it's the root rows collection. Otherwise
			// it's a child row collection of the parent row.
			if ( null != parentRow )
			{
				// Here typically you set the count based on the parent row.
				e.Rows.SetCount( 10 );
			}
		}

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