FirstVisiblePane プロパティ

子ペイン コレクション内の最初の表示ペインを返します。

シンタックス

Visual Basic

'宣言
 
Public ReadOnly Property FirstVisiblePane As DockablePaneBase

C#

public DockablePaneBase FirstVisiblePane {get;}

解説

このプロパティは、最初の表示ペインを返します。表示ペインがない場合は null を返します。グループ内の表示ペインを反復するために、GetNextVisiblePane メソッドとともにこのプロパティを使用できます。

使用例

Visual Basic

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinDock

Private Sub btnIterateVisible_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnIterateVisible.Click

    Me.WalkPanes(Me.ultraDockManager1.DockAreas(0), Me.chkIterateForward.Checked)

End Sub

Private Sub WalkPanes(ByVal group As DockableGroupPane, ByVal forward As Boolean)

    If (Not group.IsVisible) Then
        Debug.WriteLine(String.Format("Group '{0}' is not visible", group))
        Return
    ElseIf (Not group.HasChildPanes()) Then
        Debug.WriteLine(String.Format("Group [{0}] has no child panes.", group))
        Return
    End If
 
    ' Display the number of visible panes that the group
    ' contains using the GetVisibleCount method
    Debug.WriteLine(String.Format("Group [{0}] contains {1} visible panes:", group, group.Panes.GetVisibleCount()))
    Debug.WriteLine(New String("=", Math.Max(0, 50 - (Debug.IndentLevel * Debug.IndentSize))))

    ' You can see how many unpinned panes are contained by a group
    ' by checking the 'GetUnpinnedCount' method of the group's 'Panes' property
    Dim unpinnedCount As Integer = group.Panes.GetUnpinnedCount()

    If (unpinnedCount > 0) Then
        Debug.WriteLine(String.Format("The group contains {0} unpinned pane(s)", unpinnedCount))
    End If

    Dim pane As DockablePaneBase = Nothing

    If (forward) Then
        ' Let the group get the first visible pane
        pane = group.FirstVisiblePane

        Do While Not pane Is Nothing
            Debug.WriteLine("Pane:" + pane.ToString())

            ' Walk down the chain to display the info
            ' for the pane if the pane itself is a group pane
            If TypeOf pane Is DockableGroupPane Then
                Debug.Indent()
                Me.WalkPanes(pane, forward)
                Debug.Unindent()
            End If

            ' Get the subsequent visible pane
            pane = group.GetNextVisiblePane(pane)
        Loop
    Else
        ' Get the visible pane starting at the end
        pane = group.LastVisiblePane

        Do While Not pane Is Nothing
            Debug.WriteLine("Pane:" + pane.ToString())

            ' Walk down the chain to display the info
            ' for the pane if the pane itself is a group pane
            If TypeOf pane Is DockableGroupPane Then
                Debug.Indent()
                Me.WalkPanes(pane, forward)
                Debug.Unindent()
            End If

            ' Get the visible pane that is displayed before
            ' the specified pane
            pane = group.GetPreviousVisiblePane(pane)
        Loop
    End If

End Sub

C#

using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinDock;
using System.Diagnostics;

private void btnIterateVisible_Click(object sender, System.EventArgs e)
{

	this.WalkPanes( this.ultraDockManager1.DockAreas[0], this.chkIterateForward.Checked );

}

private void WalkPanes( DockableGroupPane group, bool forward )
{

	if (!group.IsVisible)
	{
		Debug.WriteLine(string.Format("Group '{0}' is not visible", group));
		return;
	}
	else if (!group.HasChildPanes())
	{
		Debug.WriteLine(string.Format("Group [{0}] has no child panes.", group));
		return;
	}

	// Display the number of visible panes that the group
	// contains using the GetVisibleCount method
	Debug.WriteLine(string.Format("Group [{0}] contains {1} visible panes:", group, group.Panes.GetVisibleCount()));
	Debug.WriteLine( new String('=', Math.Max(0, 50 - (Debug.IndentLevel * Debug.IndentSize))) );

	// You can see how many unpinned panes are contained by a group
	// by checking the 'GetUnpinnedCount' method of the group's 'Panes' property
	int unpinnedCount = group.Panes.GetUnpinnedCount();

	if (unpinnedCount > 0)
        Debug.WriteLine(String.Format("The group contains {0} unpinned pane(s)", unpinnedCount));

	DockablePaneBase pane = null;

	if (forward)
	{
		// Let the group get the first visible pane
		pane = group.FirstVisiblePane;

		while (pane != null)
		{
			Debug.WriteLine("Pane:" + pane.ToString());

			// Walk down the chain to display the info
			// for the pane if the pane itself is a group pane
			if (pane is DockableGroupPane)
			{
				Debug.Indent();
				this.WalkPanes(pane as DockableGroupPane, forward);
				Debug.Unindent();
			}

			// Get the subsequent visible pane
			pane = group.GetNextVisiblePane(pane);
		}
	}
	else
	{
		// Get the visible pane starting at the end
		pane = group.LastVisiblePane;

		while (pane != null)
		{
			Debug.WriteLine("Pane:" + pane.ToString());

			// Walk down the chain to display the info
			// for the pane if the pane itself is a group pane
			if (pane is DockableGroupPane)
			{
				Debug.Indent();
				this.WalkPanes(pane as DockableGroupPane, forward);
				Debug.Unindent();
			}

			// Get the visible pane that is displayed before
			// the specified pane
			pane = group.GetPreviousVisiblePane(pane);
		}
	}

}