ListBox.SetSelected 메서드
ListBox의 지정된 항목을 선택하거나 선택 취소합니다.
네임스페이스: System.Windows.Forms
어셈블리: System.Windows.Forms(system.windows.forms.dll)
구문
‘선언
Public Sub SetSelected ( _
index As Integer, _
value As Boolean _
)
‘사용 방법
Dim instance As ListBox
Dim index As Integer
Dim value As Boolean
instance.SetSelected(index, value)
public void SetSelected (
int index,
bool value
)
public:
void SetSelected (
int index,
bool value
)
public void SetSelected (
int index,
boolean value
)
public function SetSelected (
index : int,
value : boolean
)
매개 변수
- index
선택하거나 선택 취소할 ListBox 항목의 인덱스(0부터 시작)입니다.
- value
지정된 항목을 선택하려면 true이고, 그렇지 않으면 false입니다.
예외
| 예외 형식 | 조건 |
|---|---|
지정된 인덱스가 유효한 값 범위를 벗어난 경우 |
|
SelectionMode 속성이 None로 설정된 경우 |
설명
이 속성을 사용하여 다중 선택 ListBox에서 항목을 선택하거나 선택 취소할 수 있습니다. 단일 선택 ListBox의 항목을 선택하려면 SelectedIndex 속성을 사용합니다.
예제
다음 코드 예제에서는 열에 여러 항목을 표시하고 컨트롤 목록에서 둘 이상의 항목을 선택할 수 있는 ListBox 컨트롤을 만드는 방법을 보여 줍니다. 이 예제의 코드에서는 ListBox.ObjectCollection 클래스의 Add 메서드를 사용하여 ListBox에 50개의 항목을 추가한 다음 SetSelected 메서드를 사용하여 목록에서 세 개의 항목을 선택합니다. 그런 다음 SelectedItems 속성을 통해 ListBox.SelectedObjectCollection 컬렉션의 값을 표시하고 SelectedIndices 속성을 통해 ListBox.SelectedIndexCollection의 값을 표시합니다. 이 예제를 실행하려면 해당 코드가 Form에 있으며 여기에서 호출되어야 합니다.
Private Sub button1_Click(sender As Object, e As System.EventArgs)
' Create an instance of the ListBox.
Dim listBox1 As New ListBox()
' Set the size and location of the ListBox.
listBox1.Size = New System.Drawing.Size(200, 100)
listBox1.Location = New System.Drawing.Point(10, 10)
' Add the ListBox to the form.
Me.Controls.Add(listBox1)
' Set the ListBox to display items in multiple columns.
listBox1.MultiColumn = True
' Set the selection mode to multiple and extended.
listBox1.SelectionMode = SelectionMode.MultiExtended
' Shutdown the painting of the ListBox as items are added.
listBox1.BeginUpdate()
' Loop through and add 50 items to the ListBox.
Dim x As Integer
For x = 1 To 50
listBox1.Items.Add("Item " & x.ToString())
Next x
' Allow the ListBox to repaint and display the new items.
listBox1.EndUpdate()
' Select three items from the ListBox.
listBox1.SetSelected(1, True)
listBox1.SetSelected(3, True)
listBox1.SetSelected(5, True)
' Display the second selected item in the ListBox to the console.
System.Diagnostics.Debug.WriteLine(listBox1.SelectedItems(1).ToString())
' Display the index of the first selected item in the ListBox.
System.Diagnostics.Debug.WriteLine(listBox1.SelectedIndices(0).ToString())
End Sub
private void button1_Click(object sender, System.EventArgs e)
{
// Create an instance of the ListBox.
ListBox listBox1 = new ListBox();
// Set the size and location of the ListBox.
listBox1.Size = new System.Drawing.Size(200, 100);
listBox1.Location = new System.Drawing.Point(10,10);
// Add the ListBox to the form.
this.Controls.Add(listBox1);
// Set the ListBox to display items in multiple columns.
listBox1.MultiColumn = true;
// Set the selection mode to multiple and extended.
listBox1.SelectionMode = SelectionMode.MultiExtended;
// Shutdown the painting of the ListBox as items are added.
listBox1.BeginUpdate();
// Loop through and add 50 items to the ListBox.
for (int x = 1; x <= 50; x++)
{
listBox1.Items.Add("Item " + x.ToString());
}
// Allow the ListBox to repaint and display the new items.
listBox1.EndUpdate();
// Select three items from the ListBox.
listBox1.SetSelected(1, true);
listBox1.SetSelected(3, true);
listBox1.SetSelected(5, true);
// Display the second selected item in the ListBox to the console.
System.Diagnostics.Debug.WriteLine(listBox1.SelectedItems[1].ToString());
// Display the index of the first selected item in the ListBox.
System.Diagnostics.Debug.WriteLine(listBox1.SelectedIndices[0].ToString());
}
void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Create an instance of the ListBox.
ListBox^ listBox1 = gcnew ListBox;
// Set the size and location of the ListBox.
listBox1->Size = System::Drawing::Size( 200, 100 );
listBox1->Location = System::Drawing::Point( 10, 10 );
// Add the ListBox to the form.
this->Controls->Add( listBox1 );
// Set the ListBox to display items in multiple columns.
listBox1->MultiColumn = true;
// Set the selection mode to multiple and extended.
listBox1->SelectionMode = SelectionMode::MultiExtended;
// Shutdown the painting of the ListBox as items are added.
listBox1->BeginUpdate();
// Loop through and add 50 items to the ListBox.
for ( int x = 1; x <= 50; x++ )
{
listBox1->Items->Add( String::Format( "Item {0}", x ) );
}
listBox1->EndUpdate();
// Select three items from the ListBox.
listBox1->SetSelected( 1, true );
listBox1->SetSelected( 3, true );
listBox1->SetSelected( 5, true );
// Display the second selected item in the ListBox to the console.
System::Diagnostics::Debug::WriteLine( listBox1->SelectedItems[ 1 ] );
// Display the index of the first selected item in the ListBox.
System::Diagnostics::Debug::WriteLine( listBox1->SelectedIndices[ 0 ] );
}
private void button1_Click(Object sender, System.EventArgs e)
{
// Create an instance of the ListBox.
ListBox listBox1 = new ListBox();
// Set the size and location of the ListBox.
listBox1.set_Size(new System.Drawing.Size(200,100));
listBox1.set_Location(new System.Drawing.Point(10,10));
// Add the ListBox to the form.
this.get_Controls().Add(listBox1);
// Set the ListBox to display items in multiple columns.
listBox1.set_MultiColumn(true);
// Set the selection mode to multiple and extended.
listBox1.set_SelectionMode(SelectionMode.MultiExtended);
// Shutdown the painting of the ListBox as items are added.
listBox1.BeginUpdate();
// Loop through and add 50 items to the ListBox.
for (int x = 1; x <= 50; x++) {
listBox1.get_Items().Add(("Item" + (new Integer(x)).ToString()));
}
// Allow the ListBox to repaint and display the new items.
listBox1.EndUpdate();
// Select three items from the ListBox.
listBox1.SetSelected(1,true);
listBox1.SetSelected(3,true);
listBox1.SetSelected(5,true);
// Display the second selected item in the ListBox to the console.
System.Diagnostics.Debug.WriteLine
(listBox1.get_SelectedItems().get_Item(1).ToString());
// Display the index of the first selected item in the ListBox.
System.Diagnostics.Debug.WriteLine((new Integer
(listBox1.get_SelectedIndices().get_Item(0))).ToString());
} //button1_Click
private function button1_Click(sender : Object, e : System.EventArgs)
{
// Create an instance of the ListBox.
var listBox1 : ListBox = new ListBox();
// Set the size and location of the ListBox.
listBox1.Size = new System.Drawing.Size(200, 100);
listBox1.Location = new System.Drawing.Point(10,10);
// Add the ListBox to the form.
this.Controls.Add(listBox1);
// Set the ListBox to display items in multiple columns.
listBox1.MultiColumn = true;
// Set the selection mode to multiple and extended.
listBox1.SelectionMode = SelectionMode.MultiExtended;
// Shutdown the painting of the ListBox as items are added.
listBox1.BeginUpdate();
// Loop through and add 50 items to the ListBox.
for (var x : int = 1; x <= 50; x++)
{
listBox1.Items.Add("Item " + x.ToString());
}
// Allow the ListBox to repaint and display the new items.
listBox1.EndUpdate();
// Select three items from the ListBox.
listBox1.SetSelected(1, true);
listBox1.SetSelected(3, true);
listBox1.SetSelected(5, true);
// Display the second selected item in the ListBox to the console.
System.Diagnostics.Debug.WriteLine(listBox1.SelectedItems[1].ToString());
// Display the index of the first selected item in the ListBox.
System.Diagnostics.Debug.WriteLine(listBox1.SelectedIndices[0].ToString());
}
플랫폼
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.
버전 정보
.NET Framework
2.0, 1.1, 1.0에서 지원
참고 항목
참조
ListBox 클래스
ListBox 멤버
System.Windows.Forms 네임스페이스
SelectedIndex