TreeView.TreeViewNodeSorter TreeView.TreeViewNodeSorter TreeView.TreeViewNodeSorter TreeView.TreeViewNodeSorter Property

정의

구현을 가져오거나 설정 합니다. IComparer 사용자 지정 하는 데 정렬을 TreeView 노드.Gets or sets the implementation of IComparer to perform a custom sort of the TreeView nodes.

public:
 property System::Collections::IComparer ^ TreeViewNodeSorter { System::Collections::IComparer ^ get(); void set(System::Collections::IComparer ^ value); };
[System.ComponentModel.Browsable(false)]
public System.Collections.IComparer TreeViewNodeSorter { get; set; }
member this.TreeViewNodeSorter : System.Collections.IComparer with get, set
Public Property TreeViewNodeSorter As IComparer

속성 값

IComparer 사용자 지정 정렬을 수행 하 합니다.The IComparer to perform the custom sort.

예제

다음 코드 예제를 사용 하는 방법에 설명 합니다 TreeViewNodeSorter 에서 가장 큰 작은 노드를 정렬 하는 속성입니다.The following code example demonstrates how to use the TreeViewNodeSorter property to sort nodes from smallest to largest. 이 예제를 실행 하려면 호출을 Windows Form에 다음 코드를 붙여 넣습니다 InitializeTreeView1 폼의 생성자에서 또는 Load 이벤트 처리기입니다.To run this example, paste the following code into a Windows Form and call InitializeTreeView1 from the form's constructor or Load event handler.

    // Create a node sorter that implements the IComparer interface.
private:
    ref class NodeSorter : public IComparer
    {
        // Compare the length of the strings, or the strings
        // themselves, if they are the same length.
    public:
        virtual int Compare(Object^ x, Object^ y)
        {
            TreeNode^ tx = (TreeNode^)x;
            TreeNode^ ty = (TreeNode^)y;

            // Compare the length of the strings, returning the difference.
            if (tx->Text->Length != ty->Text->Length)
            {
                return (tx->Text->Length - ty->Text->Length);
            }

            // If they are the same length, call Compare.
            return String::Compare(tx->Text, ty->Text);
        }
    };

    // Declare the TreeView.
private:
    TreeView^ initialTreeView;
private:
    TextBox^ displayNodes;
private:
    Button^ setSorter;

private:
    void InitializeInitialTreeView()
    {
        // Create the TreeView
        initialTreeView = gcnew TreeView();
        initialTreeView->Size = System::Drawing::Size(200, 200);

        // Create the button and set some basic properties.
        setSorter = gcnew Button();
        setSorter->Location = Point(205, 138);
        setSorter->Text = "Set Sorter";

        // Handle the click event for the button.
        setSorter->Click += gcnew EventHandler(this, 
            &TreeViewWhidbeyMembersExample::SetSorter_Click);

        // Create the root nodes.
        TreeNode^ docNode = gcnew TreeNode("Documents");
        TreeNode^ spreadSheetNode = gcnew TreeNode("Spreadsheets");

        // Add some additional nodes.
        spreadSheetNode->Nodes->Add("payroll.xls");
        spreadSheetNode->Nodes->Add("checking.xls");
        spreadSheetNode->Nodes->Add("tracking.xls");
        docNode->Nodes->Add("phoneList.doc");
        docNode->Nodes->Add("resume.doc");

        // Add the root nodes to the TreeView.
        initialTreeView->Nodes->Add(spreadSheetNode);
        initialTreeView->Nodes->Add(docNode);

        // Add the TreeView to the form.
        this->Controls->Add(initialTreeView);
        this->Controls->Add(setSorter);
    }

    // Set the TreeViewNodeSorter property to a new instance
    // of the custom sorter.
private:
    void SetSorter_Click(Object^ sender, EventArgs^ e)
    {
        initialTreeView->TreeViewNodeSorter = gcnew NodeSorter();
    }
// Declare the TreeView.
private TreeView treeView1;
private TextBox textBox1;
private Button button1;

private void InitializeTreeView1()
{
    // Create the TreeView
    treeView1 = new TreeView();
    treeView1.Size = new Size(200, 200);

    // Create the button and set some basic properties. 
    button1 = new Button();
    button1.Location = new Point(205, 138);
    button1.Text = "Set Sorter";

    // Handle the click event for the button.
    button1.Click += new EventHandler(button1_Click);

    // Create the root nodes.
    TreeNode docNode = new TreeNode("Documents");
    TreeNode spreadSheetNode = new TreeNode("Spreadsheets");

    // Add some additional nodes.
    spreadSheetNode.Nodes.Add("payroll.xls");
    spreadSheetNode.Nodes.Add("checking.xls");
    spreadSheetNode.Nodes.Add("tracking.xls");
    docNode.Nodes.Add("phoneList.doc");
    docNode.Nodes.Add("resume.doc");

    // Add the root nodes to the TreeView.
    treeView1.Nodes.Add(spreadSheetNode);
    treeView1.Nodes.Add(docNode);

    // Add the TreeView to the form.
    Controls.Add(treeView1);
    Controls.Add(button1);
}

// Set the TreeViewNodeSorter property to a new instance
// of the custom sorter.
private void button1_Click(object sender, EventArgs e)
{
    treeView1.TreeViewNodeSorter = new NodeSorter();
}

// Create a node sorter that implements the IComparer interface.
public class NodeSorter : IComparer
{
    // Compare the length of the strings, or the strings
    // themselves, if they are the same length.
    public int Compare(object x, object y)
    {
        TreeNode tx = x as TreeNode;
        TreeNode ty = y as TreeNode;

        // Compare the length of the strings, returning the difference.
        if (tx.Text.Length != ty.Text.Length)
            return tx.Text.Length - ty.Text.Length;

        // If they are the same length, call Compare.
        return string.Compare(tx.Text, ty.Text);
    }
}
' Declare the TreeView.
Private WithEvents treeView1 As TreeView
Private textBox1 As TextBox
Private WithEvents button1 As Button


Private Sub InitializeTreeView1()

    ' Create the TreeView
    treeView1 = New TreeView()
    treeView1.Size = New Size(200, 200)

    ' Create the button and set some basic properties. 
    button1 = New Button()
    button1.Location = New Point(205, 138)
    button1.Text = "Set Sorter"

    ' Create the root nodes.
    Dim docNode As New TreeNode("Documents")
    Dim spreadSheetNode As New TreeNode("Spreadsheets")

    ' Add some additional nodes.
    spreadSheetNode.Nodes.Add("payroll.xls")
    spreadSheetNode.Nodes.Add("checking.xls")
    spreadSheetNode.Nodes.Add("tracking.xls")
    docNode.Nodes.Add("phoneList.doc")
    docNode.Nodes.Add("resume.doc")

    ' Add the root nodes to the TreeView.
    treeView1.Nodes.Add(spreadSheetNode)
    treeView1.Nodes.Add(docNode)

    ' Add the TreeView to the form.
    Controls.Add(treeView1)
    Controls.Add(button1)

End Sub


' Set the TreeViewNodeSorter property to a new instance
' of the custom sorter.
Private Sub button1_Click(ByVal sender As Object, _
    ByVal e As EventArgs) Handles button1.Click

    treeView1.TreeViewNodeSorter = New NodeSorter()

End Sub 'button1_Click

' Create a node sorter that implements the IComparer interface.

Public Class NodeSorter
    Implements IComparer
    
    ' Compare the length of the strings, or the strings
    ' themselves, if they are the same length.
    Public Function Compare(ByVal x As Object, ByVal y As Object) _
        As Integer Implements IComparer.Compare
        Dim tx As TreeNode = CType(x, TreeNode)
        Dim ty As TreeNode = CType(y, TreeNode)
       
        If tx.Text.Length <> ty.Text.Length Then
            Return tx.Text.Length - ty.Text.Length
        End If
        Return String.Compare(tx.Text, ty.Text)

    End Function
End Class

설명

사용자 지정 정렬이 적용 될 때를 TreeViewNodeSorter 설정 됩니다.The custom sort is applied when the TreeViewNodeSorter is set.

경우는 TreeNode 레이블이 변경 된, 호출할 수 있습니다 합니다 Sort 로 지정 된 사용자 지정 정렬 된 항목을 다시 정렬 하는 메서드는 TreeViewNodeSorter 속성.If a TreeNode label is changed, you can call the Sort method to sort the items again with the custom sorter specified by the TreeViewNodeSorter property.

참고

기본 정렬 합니다 Compare 기반 메서드는 CurrentCulture 애플리케이션에 지정 합니다.The default sorter uses the Compare method based on the CurrentCulture specified by the application. TreeNode 동일한 값을 사용 하 여 개체에 추가 된 순서에 유지 되는 TreeView 제어 합니다.This means that TreeNode objects with equal value are kept in the order in which they were added to the TreeView control. 이 동작은 사용자 지정 정렬이 적용 될 경우에 다 수 있습니다.This behavior may be different if a custom sort is applied.

적용 대상

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