ColumnResizing イベント

シンタックス

Visual Basic

'宣言
 
Public Event ColumnResizing As ColumnResizingEventHandler

C#

public event ColumnResizingEventHandler ColumnResizing

イベント データ

イベント ハンドラが、このイベントに関連するデータを含む、ColumnResizingEventArgs 型の引数を受け取りました。次の ColumnResizingEventArgs プロパティには、このイベントの固有の情報が記載されます。

プロパティ	解説
Cancel System.ComponentModel.CancelEventArgsから継承されます。
Column Infragistics.Win.UltraWinListView.CancelableColumnEventArgsから継承されます。
UIAction

使用例

Visual Basic

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinListView

    Private Sub ultraListView1_ColumnResizing(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinListView.ColumnResizingEventArgs) Handles ultraListView1.ColumnResizing

        '	If the column about to be resized is the MainColumn, cancel
        '	the event to prevent the column from being resized.
        If (e.Column.GetType() Is GetType(UltraListViewMainColumn)) Then e.Cancel = True
    End Sub

    Private Sub ultraListView1_ColumnResized(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinListView.ColumnResizedEventArgs) Handles ultraListView1.ColumnResized

        Dim listView As UltraListView = CType(sender, UltraListView)

        '	Get a rectangle which describes the client area
        '	of the control, so we can determine the width
        '	minus the width of the vertical scrollbar, if
        '	one is present.
        Dim displayRect As Rectangle = listView.DisplayRectangle
        Dim clientWidth As Integer = displayRect.Width

        '	Subtract out the width of the MainColumn
        Dim mainColumnWidth As Integer = IIf(listView.MainColumn.Width > 0, listView.MainColumn.Width, 200)
        clientWidth -= mainColumnWidth

        '	Iterate the SubItemColumns collection to get the number of
        '	visible columns.
        Dim visibleByDefault As Boolean = listView.ViewSettingsDetails.SubItemColumnsVisibleByDefault
        Dim visibleColumnsCount As Integer = 0
        Dim subItemColumn As UltraListViewSubItemColumn
        For Each subItemColumn In listView.SubItemColumns

            If (subItemColumn.VisibleInDetailsView = DefaultableBoolean.True Or _
                (visibleByDefault AndAlso subItemColumn.VisibleInDetailsView = DefaultableBoolean.Default)) Then
                visibleColumnsCount += 1
            End If

        Next

        '	Iterate the SubItemColumns collection and set the width
        For Each subItemColumn In listView.SubItemColumns
            subItemColumn.Width = Math.Floor((clientWidth / visibleColumnsCount))
        Next

    End Sub

C#

using Infragistics.Win;
using Infragistics.Win.UltraWinListView;
using System.Diagnostics;

		private void ultraListView1_ColumnResizing(object sender, Infragistics.Win.UltraWinListView.ColumnResizingEventArgs e)
		{
			//	If the column about to be resized is the MainColumn, cancel
			//	the event to prevent the column from being resized.
			if ( e.Column is UltraListViewMainColumn )
				e.Cancel = true;
		}

		private void ultraListView1_ColumnResized(object sender, Infragistics.Win.UltraWinListView.ColumnResizedEventArgs e)
		{
			UltraListView listView = sender as UltraListView;

			//	Get a rectangle which describes the client area
			//	of the control, so we can determine the width
			//	minus the width of the vertical scrollbar, if
			//	one is present.
			Rectangle displayRect = listView.DisplayRectangle;
			int clientWidth = displayRect.Width;

			//	Subtract out the width of the MainColumn
			clientWidth -= listView.MainColumn.Width > 0 ? listView.MainColumn.Width : 200;

			//	Iterate the SubItemColumns collection to get the number of
			//	visible columns.
			bool visibleByDefault = listView.ViewSettingsDetails.SubItemColumnsVisibleByDefault;
			int visibleColumnsCount = 0;
			foreach( UltraListViewSubItemColumn subItemColumn in listView.SubItemColumns )
			{
				bool visible =	subItemColumn.VisibleInDetailsView == DefaultableBoolean.True ||
								(visibleByDefault && subItemColumn.VisibleInDetailsView == DefaultableBoolean.Default);

				if ( visible )
					visibleColumnsCount++;
			}

			//	Iterate the SubItemColumns collection and set the width
			foreach( UltraListViewSubItemColumn subItemColumn in listView.SubItemColumns )
			{
				subItemColumn.Width = (int)(clientWidth / visibleColumnsCount);
			}
		}
	}