방법: ListView 컨트롤에 검색 기능 추가

아티클
05/04/2023

ListView 컨트롤에 있는 항목의 긴 목록으로 작업할 때 사용자에게 검색 기능을 제공하려는 경우가 많습니다. ListView 컨트롤은 텍스트 일치 및 위치 검색이라는 두 가지 방법으로 이 기능을 제공합니다.

이 FindItemWithText 메서드를 사용하면 검색 문자열과 선택적 시작 및 끝 인덱스가 제공된 세부 정보 보기 또는 목록의 ListView에서 텍스트를 검색할 수 있습니다. 반면, x 좌표 및 y 좌표 집합과 검색 방향이 지정된 경우 이 FindNearestItem 메서드를 사용하면 아이콘 또는 타일 보기에서 ListView의 항목을 찾을 수 있습니다.

텍스트를 사용하여 항목을 찾으려면

View 속성이 Details 또는 List로 설정된 ListView를 만든 다음 ListView를 항목으로 채웁니다.
FindItemWithText 메서드를 호출하여 찾으려는 항목의 텍스트를 전달합니다.
다음 코드 예에서는 기본 ListView를 만들고, 항목으로 채우고, 사용자의 텍스트 입력을 사용하여 목록에서 항목을 찾는 방법을 보여 줍니다.

private:
    ListView^ textListView;
    TextBox^ searchBox;

private:
    void InitializeTextSearchListView()
    {
        textListView = gcnew ListView();
        searchBox = gcnew TextBox();
        searchBox->Location = Point(150, 20);
        textListView->Scrollable = true;
        textListView->Width = 100;

        // Set the View to list to use the FindItemWithText method.
        textListView->View = View::List;

        // Populate the ListViewWithItems
        textListView->Items->AddRange(gcnew array<ListViewItem^>{
            gcnew ListViewItem("Amy Alberts"),
            gcnew ListViewItem("Amy Recker"),
            gcnew ListViewItem("Erin Hagens"),
            gcnew ListViewItem("Barry Johnson"),
            gcnew ListViewItem("Jay Hamlin"),
            gcnew ListViewItem("Brian Valentine"),
            gcnew ListViewItem("Brian Welker"),
            gcnew ListViewItem("Daniel Weisman") });

        // Handle the TextChanged to get the text for our search.
        searchBox->TextChanged += gcnew EventHandler(this, 
            &Form1::searchBox_TextChanged);

        // Add the controls to the form.
        this->Controls->Add(textListView);
        this->Controls->Add(searchBox);
    }

private:
    void searchBox_TextChanged(Object^ sender, EventArgs^ e)
    {
        // Call FindItemWithText with the contents of the textbox.
        ListViewItem^ foundItem =
            textListView->FindItemWithText(searchBox->Text, false, 0, true);
        if (foundItem != nullptr)
        {
            textListView->TopItem = foundItem;
        }
    }

private ListView textListView = new ListView();
private TextBox searchBox = new TextBox();
private void InitializeTextSearchListView()
{
    searchBox.Location = new Point(10, 60);
    textListView.Scrollable = true;
    textListView.Width = 80;
    textListView.Height = 50;

    // Set the View to list to use the FindItemWithText method.
    textListView.View = View.List;

    // Populate the ListViewWithItems
    textListView.Items.AddRange(new ListViewItem[]{
        new ListViewItem("Amy Alberts"),
        new ListViewItem("Amy Recker"),
        new ListViewItem("Erin Hagens"),
        new ListViewItem("Barry Johnson"),
        new ListViewItem("Jay Hamlin"),
        new ListViewItem("Brian Valentine"),
        new ListViewItem("Brian Welker"),
        new ListViewItem("Daniel Weisman") });

    // Handle the TextChanged to get the text for our search.
    searchBox.TextChanged += new EventHandler(searchBox_TextChanged);

    // Add the controls to the form.
    this.Controls.Add(textListView);
    this.Controls.Add(searchBox);
}

private void searchBox_TextChanged(object sender, EventArgs e)
{
    // Call FindItemWithText with the contents of the textbox.
    ListViewItem foundItem =
        textListView.FindItemWithText(searchBox.Text, false, 0, true);
    if (foundItem != null)
    {
        textListView.TopItem = foundItem;
    }
}

Private textListView As New ListView()
Private WithEvents searchBox As New TextBox()

Private Sub InitializeTextSearchListView() 
    searchBox.Location = New Point(150, 20)
    textListView.Scrollable = True
    textListView.Width = 80
    textListView.Height = 50
    
    ' Set the View to list to use the FindItemWithText method.
    textListView.View = View.List
    
    ' Populate the ListView with items.
    textListView.Items.AddRange(New ListViewItem() { _
        New ListViewItem("Amy Alberts"), _
        New ListViewItem("Amy Recker"), _
        New ListViewItem("Erin Hagens"), _
        New ListViewItem("Barry Johnson"), _
        New ListViewItem("Jay Hamlin"), _
        New ListViewItem("Brian Valentine"), _
        New ListViewItem("Brian Welker"), _
        New ListViewItem("Daniel Weisman")})

    ' Add the controls to the form.
    Me.Controls.Add(textListView)
    Me.Controls.Add(searchBox)

End Sub
 
Private Sub searchBox_TextChanged(ByVal sender As Object, ByVal e As EventArgs) _
    Handles searchBox.TextChanged

    ' Call FindItemWithText with the contents of the textbox.
    Dim foundItem As ListViewItem = _
        textListView.FindItemWithText(searchBox.Text, False, 0, True)

    If (foundItem IsNot Nothing) Then
        textListView.TopItem = foundItem
    End If

End Sub

x 좌표 및 y 좌표를 사용하여 항목을 찾으려면

View 속성이 SmallIcon 또는 LargeIcon로 설정된 ListView를 만든 다음 ListView를 항목으로 채웁니다.
원하는 x 좌표 및 y 좌표와 검색하려는 방향을 전달하여 FindNearestItem 메서드를 호출합니다.
다음 코드 예에서는 기본 아이콘 ListView를 만들고, 항목으로 채우고, MouseDown 이벤트를 캡처하여 위쪽 방향으로 가장 가까운 항목을 찾는 방법을 보여 줍니다.

    ListView^ iconListView;
    TextBox^ previousItemBox;

private:
    void InitializeLocationSearchListView()
    {
        previousItemBox = gcnew TextBox();
        iconListView = gcnew ListView();
        previousItemBox->Location = Point(150, 20);

        // Create an image list for the icon ListView.
        iconListView->SmallImageList = gcnew ImageList();

        // Add an image to the ListView small icon list.
        iconListView->SmallImageList->Images->Add(
            gcnew Bitmap(Control::typeid, "Edit.bmp"));

        // Set the view to small icon and add some items with the image
        // in the image list.
        iconListView->View = View::SmallIcon;
        iconListView->Items->AddRange(gcnew array<ListViewItem^>{
            gcnew ListViewItem("Amy Alberts", 0),
            gcnew ListViewItem("Amy Recker", 0),
            gcnew ListViewItem("Erin Hagens", 0),
            gcnew ListViewItem("Barry Johnson", 0),
            gcnew ListViewItem("Jay Hamlin", 0),
            gcnew ListViewItem("Brian Valentine", 0),
            gcnew ListViewItem("Brian Welker", 0),
            gcnew ListViewItem("Daniel Weisman", 0) });
         this->Controls->Add(iconListView);
         this->Controls->Add(previousItemBox);

         // Handle the MouseDown event to capture user input.
         iconListView->MouseDown += gcnew MouseEventHandler(
             this, &Form1::iconListView_MouseDown);
    }

    void iconListView_MouseDown(Object^ sender, MouseEventArgs^ e)
    {
        // Find the next item up from where the user clicked.
        ListViewItem^ foundItem = iconListView->FindNearestItem(
            SearchDirectionHint::Up, e->X, e->Y);

        // Display the results in a textbox..
        if (foundItem != nullptr)
        {
            previousItemBox->Text = foundItem->Text;
        }
        else
        {
            previousItemBox->Text = "No item found";
        }
    }

ListView iconListView = new ListView();
TextBox previousItemBox = new TextBox();

private void InitializeLocationSearchListView()
{
    previousItemBox.Location = new Point(150, 20);

    // Create an image list for the icon ListView.
    iconListView.LargeImageList = new ImageList();
    iconListView.Height = 400;

    // Add an image to the ListView large icon list.
    iconListView.LargeImageList.Images.Add(
        new Bitmap(typeof(Control), "Edit.bmp"));

    // Set the view to large icon and add some items with the image
    // in the image list.
    iconListView.View = View.LargeIcon;
    iconListView.Items.AddRange(new ListViewItem[]{
        new ListViewItem("Amy Alberts", 0),
        new ListViewItem("Amy Recker", 0),
        new ListViewItem("Erin Hagens", 0),
        new ListViewItem("Barry Johnson", 0),
        new ListViewItem("Jay Hamlin", 0),
        new ListViewItem("Brian Valentine", 0),
        new ListViewItem("Brian Welker", 0),
        new ListViewItem("Daniel Weisman", 0) });
    this.Controls.Add(iconListView);
    this.Controls.Add(previousItemBox);

    // Handle the MouseDown event to capture user input.
   iconListView.MouseDown +=
       new MouseEventHandler(iconListView_MouseDown);
    //iconListView.MouseWheel += new MouseEventHandler(iconListView_MouseWheel);
}

void iconListView_MouseDown(object sender, MouseEventArgs e)
{

    // Find the an item above where the user clicked.
    ListViewItem foundItem =
        iconListView.FindNearestItem(SearchDirectionHint.Up, e.X, e.Y);

    // Display the results in a textbox..
    if (foundItem != null)
        previousItemBox.Text = foundItem.Text;
    else
        previousItemBox.Text = "No item found";
}

Private WithEvents iconListView As New ListView()
Private previousItemBox As New TextBox()


Private Sub InitializeLocationSearchListView()
    previousItemBox.Location = New Point(150, 20)

    ' Create an image list for the icon ListView.
    iconListView.LargeImageList = New ImageList()

    ' Add an image to the ListView large icon list.
    iconListView.LargeImageList.Images.Add(New Bitmap(GetType(Control), "Edit.bmp"))

    ' Set the view to large icon and add some items with the image
    ' in the image list.
    iconListView.View = View.SmallIcon
    iconListView.Items.AddRange(New ListViewItem() { _
        New ListViewItem("Amy Alberts", 0), _
        New ListViewItem("Amy Recker", 0), _
        New ListViewItem("Erin Hagens", 0), _
        New ListViewItem("Barry Johnson", 0), _
        New ListViewItem("Jay Hamlin", 0), _
        New ListViewItem("Brian Valentine", 0), _
        New ListViewItem("Brian Welker", 0), _
        New ListViewItem("Daniel Weisman", 0)})

    Me.Controls.Add(iconListView)
    Me.Controls.Add(previousItemBox)
End Sub

Sub iconListView_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) _
    Handles iconListView.MouseDown

    ' Find the next item up from where the user clicked.
    Dim foundItem As ListViewItem = _
    iconListView.FindNearestItem(SearchDirectionHint.Up, e.X, e.Y)

    ' Display the results in a textbox.
    If (foundItem IsNot Nothing) Then
        previousItemBox.Text = foundItem.Text
    Else
        previousItemBox.Text = "No item found"
    End If


End Sub

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방법: ListView 컨트롤에 검색 기능 추가

텍스트를 사용하여 항목을 찾으려면

x 좌표 및 y 좌표를 사용하여 항목을 찾으려면

참고 항목

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