AfterNodeLayoutItemResize イベント

ノードレイアウト項目 (列ヘッダーまたはセル) のサイズがエンドユーザーによって変更された後に発生します。

シンタックス

Visual Basic

'宣言
 
Public Event AfterNodeLayoutItemResize As AfterNodeLayoutItemResizeEventHandler

C#

public event AfterNodeLayoutItemResizeEventHandler AfterNodeLayoutItemResize

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、AfterNodeLayoutItemResizeEventArgs 型の引数を受け取りました。次の AfterNodeLayoutItemResizeEventArgs 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
Cell	サイズ変更された UltraTreeNodeCell を返します。
Column	サイズ変更された UltraTreeNodeColumn を返します。
IsAutoResize	イベントが自動サイズ変更操作によってトリガーされているかどうかを示すブール値を返します。
IsCell	サイズ変更された項目が UltraTreeNodeCell かどうかを返します。
IsLabel	サイズ変更された項目が UltraTreeNodeColumn ヘッダー (ラベルとも呼ばれます) かどうかを返します。

使用例

Visual Basic

Imports Infragistics.Win
Imports Infragistics.Win.Layout
Imports Infragistics.Win.UltraWinTree

    Private Sub ultraTree1_AfterNodeLayoutItemResize(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTree.AfterNodeLayoutItemResizeEventArgs) Handles ultraTree1.AfterNodeLayoutItemResize

        '	Output a message to the debug window describing the resize operation
        Dim message As String = String.Empty
        If (e.IsCell) Then
            message = "Cell '" + e.Cell.Text + "' was successfully resized."
        Else
            message = "The header of column '" + e.Column.TextResolved + "' was successfully resized."
        End If

    End Sub

    Private Sub ultraTree1_BeforeNodeLayoutItemResize(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTree.BeforeNodeLayoutItemResizeEventArgs) Handles ultraTree1.BeforeNodeLayoutItemResize
        '	Disallow cell resizing for non-root level nodes
        If Not e.Node Is Nothing AndAlso e.Node.Level > 0 Then

            e.Cancel = True
            Return
        End If

        Dim originalSize As Size = Size.Empty

        '	Determine whether a cell or header was resized
        If (e.IsLabel) Then
            originalSize = e.Column.LayoutInfo.PreferredLabelSize
        Else
            originalSize = e.Column.LayoutInfo.PreferredCellSize
        End If

        '	Determine the amount by which the item was resized
        Dim delta As Size = New Size(e.NewSize.Width - originalSize.Width, e.NewSize.Height - originalSize.Height)

        '	Output a message to the debug window describing the resize operation
        Dim message As String = String.Empty
        If (e.IsCell) Then
            message = "Cell '" + e.Cell.Text + "' is being resized by " + delta.Width.ToString() + " units horizontally and " + delta.Height.ToString() + " units vertically."
        Else
            message = "The header of column '" + e.Column.TextResolved + "' is being resized by " + delta.Width.ToString() + " units horizontally and " + delta.Height.ToString() + " units vertically."
        End If

        Debug.WriteLine(message)

    End Sub

C#

using Infragistics.Win;
using Infragistics.Win.Layout;
using Infragistics.Win.UltraWinTree;
using System.Diagnostics;

		private void ultraTree1_AfterNodeLayoutItemResize(object sender, Infragistics.Win.UltraWinTree.AfterNodeLayoutItemResizeEventArgs e)
		{
			//	Output a message to the debug window describing the resize operation
			string message = string.Empty;
			if ( e.IsCell )
				message = "Cell '" + e.Cell.Text + "' was successfully resized.";
			else
				message = "The header of column '" + e.Column.TextResolved + "' was successfully resized.";
		}

		private void ultraTree1_BeforeNodeLayoutItemResize(object sender, Infragistics.Win.UltraWinTree.BeforeNodeLayoutItemResizeEventArgs e)
		{
			//	Disallow cell resizing for non-root level nodes
			if ( e.Node != null && e.Node.Level > 0 )
			{
				e.Cancel = true;
				return;
			}

			Size originalSize = Size.Empty;

			//	Determine whether a cell or header was resized
			if ( e.IsLabel )
				originalSize = e.Column.LayoutInfo.PreferredLabelSize;
			else
				originalSize = e.Column.LayoutInfo.PreferredCellSize;

			//	Determine the amount by which the item was resized
			Size delta = new Size(	e.NewSize.Width - originalSize.Width,
									e.NewSize.Height - originalSize.Height );

			//	Output a message to the debug window describing the resize operation
			string message = string.Empty;
			if ( e.IsCell )
				message = "Cell '" + e.Cell.Text + "' is being resized by " + delta.Width.ToString() + " units horizontally and " + delta.Height.ToString() + " units vertically.";
			else
				message = "The header of column '" + e.Column.TextResolved + "' is being resized by " + delta.Width.ToString() + " units horizontally and " + delta.Height.ToString() + " units vertically.";

			Debug.WriteLine( message );
		}