ComboBox-Klasse
Stellt ein Kombinationsfeld-Steuerelement von Windows dar.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)
Syntax
'Declaration
<ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)> _
<ComVisibleAttribute(True)> _
Public Class ComboBox
Inherits ListControl
'Usage
Dim instance As ComboBox
[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
[ComVisibleAttribute(true)]
public class ComboBox : ListControl
[ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)]
[ComVisibleAttribute(true)]
public ref class ComboBox : public ListControl
/** @attribute ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch) */
/** @attribute ComVisibleAttribute(true) */
public class ComboBox extends ListControl
ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)
ComVisibleAttribute(true)
public class ComboBox extends ListControl
Hinweise
Ein ComboBox zeigt ein Texteingabefeld mit einer ListBox an, sodass der Benutzer Elemente aus der Liste auswählen oder neuen Text eingeben kann. Im Standardverhalten von ComboBox wird ein Eingabefeld mit einer ausgeblendeten Dropdownliste angezeigt. Die DropDownStyle-Eigenschaft bestimmt das Format des anzuzeigenden Kombinationsfelds. Entsprechend dem eingegebenen Wert haben Sie folgende Möglichkeiten: Eine einfache Dropdownliste, bei der die Liste immer angezeigt wird, ein Dropdown-Listenfeld, dessen Textbereich nicht bearbeitet werden kann und bei dem auf den Pfeil geklickt werden muss, um das Dropdown-Listenfeld anzuzeigen, oder das standardmäßige Dropdown-Listenfeld, dessen Textbereich bearbeitet werden kann und bei dem der Benutzer auf den Pfeil klicken muss, um die Liste zu öffnen. Verwenden Sie ein ListBox-Steuerelement, um eine Liste anzuzeigen, die vom Benutzer nicht bearbeitet werden kann.
Um der Liste zur Laufzeit Objekte hinzuzufügen, weisen Sie mithilfe der AddRange-Methode ein Array von Objektverweisen zu. In der Liste wird dann der Standard-Zeichenfolgenwert für jedes einzelne Objekt angezeigt. Mit der Add-Methode können Sie einzelne Objekte hinzufügen.
Neben den Funktionen zum Anzeigen und Auswählen bietet die ComboBox auch Features, mit denen Sie der ComboBox einfach Elemente hinzufügen und Text in den Listenelementen suchen können. Mithilfe der BeginUpdate-Methode und der EndUpdate-Methode können Sie der ComboBox eine große Anzahl von Elementen hinzufügen, ohne dass das Steuerelement bei jedem Hinzufügen eines Elements zur Liste neu aufgebaut wird. Mithilfe der FindString-Methode und der FindStringExact-Methode können Sie nach einem Element in der Liste suchen, das eine bestimmte Suchzeichenfolge enthält.
Sie können die folgenden Eigenschaften verwenden, um das derzeit ausgewählte Listenelement zu verwalten: die Text-Eigenschaft zum Angeben der im Eingabefeld angezeigten Zeichenfolge, die SelectedIndex-Eigenschaft zum Abrufen oder Festlegen des aktuellen Elements und die SelectedItem-Eigenschaft zum Abrufen oder Festlegen eines Verweises auf das Objekt.
Hinweis
Wenn eine ListBox, ComboBox oder CheckedListBox auf einer Windows Forms-Basisseite vorhanden ist und Sie die Zeichenfolgenauflistungen dieser Steuerelemente in einem abgeleiteten Formular ändern möchten, müssen die Zeichenfolgenauflistungen dieser Steuerelemente auf dem Basisformular leer sein. Wenn die Zeichenfolgenauflistungen nicht leer sind, werden sie beim Ableiten eines anderen Formulars als schreibgeschützt festgelegt.
Beispiel
Im folgenden Codebeispiel wird eine vollständige Anwendung veranschaulicht. Darin wird dargestellt, wie Sie mithilfe der Add-Methode einer ComboBox Elemente hinzufügen, mithilfe der FindString-Methode Elemente in einer ComboBox suchen und mithilfe der BeginUpdate-Methode und der EndUpdate-Methode einer ComboBox auf effiziente Weise eine große Anzahl von Elementen hinzufügen können.
Imports System
Imports System.Windows.Forms
Namespace ComboBoxSampleNamespace
Public Class ComboBoxSample
Inherits System.Windows.Forms.Form
Private addButton As System.Windows.Forms.Button
Private textBox2 As System.Windows.Forms.TextBox
Private addGrandButton As System.Windows.Forms.Button
Private comboBox1 As System.Windows.Forms.ComboBox
Private showSelectedButton As System.Windows.Forms.Button
Private textBox1 As System.Windows.Forms.TextBox
Private findButton As System.Windows.Forms.Button
Private label1 As System.Windows.Forms.Label
Public Sub New()
MyBase.New()
Me.InitializeComponent()
End Sub
<System.STAThreadAttribute()> Public Shared Sub Main()
System.Windows.Forms.Application.Run(New ComboBoxSample())
End Sub
Private Sub InitializeComponent()
Me.addButton = New System.Windows.Forms.Button()
Me.textBox2 = New System.Windows.Forms.TextBox()
Me.addGrandButton = New System.Windows.Forms.Button()
Me.comboBox1 = New System.Windows.Forms.ComboBox()
Me.showSelectedButton = New System.Windows.Forms.Button()
Me.textBox1 = New System.Windows.Forms.TextBox()
Me.findButton = New System.Windows.Forms.Button()
Me.label1 = New System.Windows.Forms.Label()
Me.addButton.Location = New System.Drawing.Point(248, 32)
Me.addButton.Size = New System.Drawing.Size(40, 24)
Me.addButton.TabIndex = 1
Me.addButton.Text = "Add"
AddHandler Me.addButton.Click, AddressOf Me.addButton_Click
Me.textBox2.Location = New System.Drawing.Point(8, 64)
Me.textBox2.Size = New System.Drawing.Size(232, 20)
Me.textBox2.TabIndex = 6
Me.textBox2.Text = ""
Me.addGrandButton.Location = New System.Drawing.Point(8, 96)
Me.addGrandButton.Size = New System.Drawing.Size(280, 23)
Me.addGrandButton.TabIndex = 2
Me.addGrandButton.Text = "Add 1,000 Items"
AddHandler Me.addGrandButton.Click, AddressOf Me.addGrandButton_Click
Me.comboBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Left) _
Or System.Windows.Forms.AnchorStyles.Right)
Me.comboBox1.DropDownWidth = 280
Me.comboBox1.Items.AddRange(New Object() {"Item 1", "Item 2", "Item 3", "Item 4", "Item 5"})
Me.comboBox1.Location = New System.Drawing.Point(8, 248)
Me.comboBox1.Size = New System.Drawing.Size(280, 21)
Me.comboBox1.TabIndex = 7
Me.showSelectedButton.Location = New System.Drawing.Point(8, 128)
Me.showSelectedButton.Size = New System.Drawing.Size(280, 24)
Me.showSelectedButton.TabIndex = 4
Me.showSelectedButton.Text = "What Item is Selected?"
AddHandler Me.showSelectedButton.Click, AddressOf Me.showSelectedButton_Click
Me.textBox1.Location = New System.Drawing.Point(8, 32)
Me.textBox1.Size = New System.Drawing.Size(232, 20)
Me.textBox1.TabIndex = 5
Me.textBox1.Text = ""
Me.findButton.Location = New System.Drawing.Point(248, 64)
Me.findButton.Size = New System.Drawing.Size(40, 24)
Me.findButton.TabIndex = 3
Me.findButton.Text = "Find"
AddHandler Me.findButton.Click, AddressOf Me.findButton_Click
Me.label1.Location = New System.Drawing.Point(8, 224)
Me.label1.Size = New System.Drawing.Size(144, 23)
Me.label1.TabIndex = 0
Me.label1.Text = "Test ComboBox"
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.comboBox1, Me.textBox2, Me.textBox1, Me.showSelectedButton, Me.findButton, Me.addGrandButton, Me.addButton, Me.label1})
Me.Text = "ComboBox Sample"
End Sub
Private Sub addButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
comboBox1.Items.Add(textBox1.Text)
End Sub
Private Sub findButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim index As Integer
index = comboBox1.FindString(textBox2.Text)
comboBox1.SelectedIndex = index
End Sub
Private Sub addGrandButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
comboBox1.BeginUpdate()
Dim I As Integer
For I = 0 To 1000
comboBox1.Items.Add("Item 1" + i.ToString())
Next
comboBox1.EndUpdate()
End Sub
Private Sub showSelectedButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim selectedIndex As Integer
selectedIndex = comboBox1.SelectedIndex
Dim selectedItem As Object
selectedItem = comboBox1.SelectedItem
MessageBox.Show("Selected Item Text: " & selectedItem.ToString() & Microsoft.VisualBasic.Constants.vbCrLf & _
"Index: " & selectedIndex.ToString())
End Sub
End Class
End Namespace
using System;
using System.Windows.Forms;
namespace Win32Form1Namespace {
public class Win32Form1 : System.Windows.Forms.Form {
private System.Windows.Forms.Button addButton;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.Button addGrandButton;
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.Button showSelectedButton;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button findButton;
private System.Windows.Forms.Label label1;
public Win32Form1() {
this.InitializeComponent();
}
[System.STAThreadAttribute()]
public static void Main() {
System.Windows.Forms.Application.Run(new Win32Form1());
}
private void InitializeComponent() {
this.addButton = new System.Windows.Forms.Button();
this.textBox2 = new System.Windows.Forms.TextBox();
this.addGrandButton = new System.Windows.Forms.Button();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.showSelectedButton = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.findButton = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.addButton.Location = new System.Drawing.Point(248, 32);
this.addButton.Size = new System.Drawing.Size(40, 24);
this.addButton.TabIndex = 1;
this.addButton.Text = "Add";
this.addButton.Click += new System.EventHandler(this.addButton_Click);
this.textBox2.Location = new System.Drawing.Point(8, 64);
this.textBox2.Size = new System.Drawing.Size(232, 20);
this.textBox2.TabIndex = 6;
this.textBox2.Text = "";
this.addGrandButton.Location = new System.Drawing.Point(8, 96);
this.addGrandButton.Size = new System.Drawing.Size(280, 23);
this.addGrandButton.TabIndex = 2;
this.addGrandButton.Text = "Add 1,000 Items";
this.addGrandButton.Click += new System.EventHandler(this.addGrandButton_Click);
this.comboBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.comboBox1.DropDownWidth = 280;
this.comboBox1.Items.AddRange(new object[] {"Item 1",
"Item 2",
"Item 3",
"Item 4",
"Item 5"});
this.comboBox1.Location = new System.Drawing.Point(8, 248);
this.comboBox1.Size = new System.Drawing.Size(280, 21);
this.comboBox1.TabIndex = 7;
this.showSelectedButton.Location = new System.Drawing.Point(8, 128);
this.showSelectedButton.Size = new System.Drawing.Size(280, 24);
this.showSelectedButton.TabIndex = 4;
this.showSelectedButton.Text = "What Item is Selected?";
this.showSelectedButton.Click += new System.EventHandler(this.showSelectedButton_Click);
this.textBox1.Location = new System.Drawing.Point(8, 32);
this.textBox1.Size = new System.Drawing.Size(232, 20);
this.textBox1.TabIndex = 5;
this.textBox1.Text = "";
this.findButton.Location = new System.Drawing.Point(248, 64);
this.findButton.Size = new System.Drawing.Size(40, 24);
this.findButton.TabIndex = 3;
this.findButton.Text = "Find";
this.findButton.Click += new System.EventHandler(this.findButton_Click);
this.label1.Location = new System.Drawing.Point(8, 224);
this.label1.Size = new System.Drawing.Size(144, 23);
this.label1.TabIndex = 0;
this.label1.Text = "Test ComboBox";
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.comboBox1,
this.textBox2,
this.textBox1,
this.showSelectedButton,
this.findButton,
this.addGrandButton,
this.addButton,
this.label1});
this.Text = "ComboBox Sample";
}
private void addButton_Click(object sender, System.EventArgs e) {
comboBox1.Items.Add(textBox1.Text);
}
private void addGrandButton_Click(object sender, System.EventArgs e) {
comboBox1.BeginUpdate();
for (int i = 0; i < 1000; i++) {
comboBox1.Items.Add("Item 1" + i.ToString());
}
comboBox1.EndUpdate();
}
private void findButton_Click(object sender, System.EventArgs e) {
int index = comboBox1.FindString(textBox2.Text);
comboBox1.SelectedIndex = index;
}
private void showSelectedButton_Click(object sender, System.EventArgs e) {
int selectedIndex = comboBox1.SelectedIndex;
Object selectedItem = comboBox1.SelectedItem;
MessageBox.Show("Selected Item Text: " + selectedItem.ToString() + "\n" +
"Index: " + selectedIndex.ToString());
}
}
}
#using <System.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
using namespace System;
using namespace System::Windows::Forms;
namespace Win32Form1Namespace
{
public ref class Win32Form1: public System::Windows::Forms::Form
{
private:
System::Windows::Forms::Button^ addButton;
System::Windows::Forms::TextBox^ textBox2;
System::Windows::Forms::Button^ addGrandButton;
System::Windows::Forms::ComboBox^ comboBox1;
System::Windows::Forms::Button^ showSelectedButton;
System::Windows::Forms::TextBox^ textBox1;
System::Windows::Forms::Button^ findButton;
System::Windows::Forms::Label ^ label1;
public:
Win32Form1()
{
this->InitializeComponent();
}
private:
void InitializeComponent()
{
this->addButton = gcnew System::Windows::Forms::Button;
this->textBox2 = gcnew System::Windows::Forms::TextBox;
this->addGrandButton = gcnew System::Windows::Forms::Button;
this->comboBox1 = gcnew System::Windows::Forms::ComboBox;
this->showSelectedButton = gcnew System::Windows::Forms::Button;
this->textBox1 = gcnew System::Windows::Forms::TextBox;
this->findButton = gcnew System::Windows::Forms::Button;
this->label1 = gcnew System::Windows::Forms::Label;
this->addButton->Location = System::Drawing::Point( 248, 32 );
this->addButton->Size = System::Drawing::Size( 40, 24 );
this->addButton->TabIndex = 1;
this->addButton->Text = "Add";
this->addButton->Click += gcnew System::EventHandler(
this, &Win32Form1::addButton_Click );
this->textBox2->Location = System::Drawing::Point( 8, 64 );
this->textBox2->Size = System::Drawing::Size( 232, 20 );
this->textBox2->TabIndex = 6;
this->textBox2->Text = "";
this->addGrandButton->Location = System::Drawing::Point( 8, 96 );
this->addGrandButton->Size = System::Drawing::Size( 280, 23 );
this->addGrandButton->TabIndex = 2;
this->addGrandButton->Text = "Add 1, 000 Items";
this->addGrandButton->Click += gcnew System::EventHandler(
this, &Win32Form1::addGrandButton_Click );
this->comboBox1->Anchor = (System::Windows::Forms::AnchorStyles)(
(System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Left) |
System::Windows::Forms::AnchorStyles::Right);
this->comboBox1->DropDownWidth = 280;
array<Object^>^ objectArray = {"Item 1",
"Item 2",
"Item 3",
"Item 4",
"Item 5"};
this->comboBox1->Items->AddRange( objectArray );
this->comboBox1->Location = System::Drawing::Point( 8, 248 );
this->comboBox1->Size = System::Drawing::Size( 280, 21 );
this->comboBox1->TabIndex = 7;
this->showSelectedButton->Location = System::Drawing::Point( 8, 128 );
this->showSelectedButton->Size = System::Drawing::Size( 280, 24 );
this->showSelectedButton->TabIndex = 4;
this->showSelectedButton->Text = "What Item is Selected?";
this->showSelectedButton->Click += gcnew System::EventHandler(
this, &Win32Form1::showSelectedButton_Click );
this->textBox1->Location = System::Drawing::Point( 8, 32 );
this->textBox1->Size = System::Drawing::Size( 232, 20 );
this->textBox1->TabIndex = 5;
this->textBox1->Text = "";
this->findButton->Location = System::Drawing::Point( 248, 64 );
this->findButton->Size = System::Drawing::Size( 40, 24 );
this->findButton->TabIndex = 3;
this->findButton->Text = "Find";
this->findButton->Click += gcnew System::EventHandler(
this, &Win32Form1::findButton_Click );
this->label1->Location = System::Drawing::Point( 8, 224 );
this->label1->Size = System::Drawing::Size( 144, 23 );
this->label1->TabIndex = 0;
this->label1->Text = "Test ComboBox";
this->ClientSize = System::Drawing::Size( 292, 273 );
array<System::Windows::Forms::Control^>^ controlsArray = {this->comboBox1,
this->textBox2,
this->textBox1,
this->showSelectedButton,
this->findButton,
this->addGrandButton,
this->addButton,
this->label1};
this->Controls->AddRange( controlsArray );
this->Text = "ComboBox Sample";
}
void addButton_Click( Object^ sender, System::EventArgs^ e )
{
comboBox1->Items->Add( textBox1->Text );
}
void addGrandButton_Click( Object^ sender, System::EventArgs^ e )
{
comboBox1->BeginUpdate();
for ( int i = 0; i < 1000; i++ )
{
comboBox1->Items->Add( "Item 1 " + i.ToString() );
}
comboBox1->EndUpdate();
}
void findButton_Click( Object^ sender, System::EventArgs^ e )
{
int index = comboBox1->FindString( textBox2->Text );
comboBox1->SelectedIndex = index;
}
void showSelectedButton_Click( Object^ sender, System::EventArgs^ e )
{
int selectedIndex = comboBox1->SelectedIndex;
Object^ selectedItem = comboBox1->SelectedItem;
MessageBox::Show( "Selected Item Text: " + selectedItem->ToString() + "\n" +
"Index: " + selectedIndex.ToString() );
}
};
}
[System::STAThreadAttribute]
int main()
{
System::Windows::Forms::Application::Run( gcnew Win32Form1Namespace::Win32Form1 );
}
package Win32Form1Namespace;
import System.*;
import System.Windows.Forms.*;
public class Win32Form1 extends System.Windows.Forms.Form
{
private System.Windows.Forms.Button addButton;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.Button addGrandButton;
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.Button showSelectedButton;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button findButton;
private System.Windows.Forms.Label label1;
public Win32Form1()
{
this.InitializeComponent();
} //Win32Form1
/** @attribute System.STAThreadAttribute()
*/
public static void main(String[] args)
{
System.Windows.Forms.Application.Run(new Win32Form1());
} //main
private void InitializeComponent()
{
this.addButton = new System.Windows.Forms.Button();
this.textBox2 = new System.Windows.Forms.TextBox();
this.addGrandButton = new System.Windows.Forms.Button();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.showSelectedButton = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.findButton = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.addButton.set_Location(new System.Drawing.Point(248, 32));
this.addButton.set_Size(new System.Drawing.Size(40, 24));
this.addButton.set_TabIndex(1);
this.addButton.set_Text("Add");
this.addButton.add_Click(new System.EventHandler(this.addButton_Click));
this.textBox2.set_Location(new System.Drawing.Point(8, 64));
this.textBox2.set_Size(new System.Drawing.Size(232, 20));
this.textBox2.set_TabIndex(6);
this.textBox2.set_Text("");
this.addGrandButton.set_Location(new System.Drawing.Point(8, 96));
this.addGrandButton.set_Size(new System.Drawing.Size(280, 23));
this.addGrandButton.set_TabIndex(2);
this.addGrandButton.set_Text("Add 1,000 Items");
this.addGrandButton.add_Click(new System.EventHandler(
this.addGrandButton_Click));
this.comboBox1.set_Anchor(System.Windows.Forms.AnchorStyles.Bottom
| System.Windows.Forms.AnchorStyles.Left
| System.Windows.Forms.AnchorStyles.Right);
this.comboBox1.set_DropDownWidth(280);
this.comboBox1.get_Items().AddRange(new Object[]
{ "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" });
this.comboBox1.set_Location(new System.Drawing.Point(8, 248));
this.comboBox1.set_Size(new System.Drawing.Size(280, 21));
this.comboBox1.set_TabIndex(7);
this.showSelectedButton.set_Location(new System.Drawing.Point(8, 128));
this.showSelectedButton.set_Size(new System.Drawing.Size(280, 24));
this.showSelectedButton.set_TabIndex(4);
this.showSelectedButton.set_Text("What Item is Selected?");
this.showSelectedButton.add_Click(new System.EventHandler(
this.showSelectedButton_Click));
this.textBox1.set_Location(new System.Drawing.Point(8, 32));
this.textBox1.set_Size(new System.Drawing.Size(232, 20));
this.textBox1.set_TabIndex(5);
this.textBox1.set_Text("");
this.findButton.set_Location(new System.Drawing.Point(248, 64));
this.findButton.set_Size(new System.Drawing.Size(40, 24));
this.findButton.set_TabIndex(3);
this.findButton.set_Text("Find");
this.findButton.add_Click(new System.EventHandler(
this.findButton_Click));
this.label1.set_Location(new System.Drawing.Point(8, 224));
this.label1.set_Size(new System.Drawing.Size(144, 23));
this.label1.set_TabIndex(0);
this.label1.set_Text("Test ComboBox");
this.set_ClientSize(new System.Drawing.Size(292, 273));
this.get_Controls().AddRange(new System.Windows.Forms.Control[]
{ this.comboBox1, this.textBox2, this.textBox1,
this.showSelectedButton, this.findButton, this.addGrandButton,
this.addButton, this.label1 });
this.set_Text("ComboBox Sample");
} //InitializeComponent
private void addButton_Click(Object sender, System.EventArgs e)
{
comboBox1.get_Items().Add(textBox1.get_Text());
} //addButton_Click
private void addGrandButton_Click(Object sender, System.EventArgs e)
{
comboBox1.BeginUpdate();
for (int i = 0; i < 1000; i++) {
comboBox1.get_Items().Add("Item 1" + ((Int32)i).ToString());
}
comboBox1.EndUpdate();
} //addGrandButton_Click
private void findButton_Click(Object sender, System.EventArgs e)
{
int index = comboBox1.FindString(textBox2.get_Text());
comboBox1.set_SelectedIndex(index);
} //findButton_Click
private void showSelectedButton_Click(Object sender, System.EventArgs e)
{
int selectedIndex = comboBox1.get_SelectedIndex();
Object selectedItem = comboBox1.get_SelectedItem();
MessageBox.Show("Selected Item Text: " + selectedItem.ToString()
+ "\n" + "Index: " + ((Int32)selectedIndex).ToString());
} //showSelectedButton_Click
Vererbungshierarchie
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
System.Windows.Forms.ListControl
System.Windows.Forms.ComboBox
Microsoft.CLRAdmin.DataGridComboBox
System.Windows.Forms.DataGridViewComboBoxEditingControl
Threadsicherheit
Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.
Plattformen
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, Windows Mobile für Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.
Versionsinformationen
.NET Framework
Unterstützt in: 2.0, 1.1, 1.0
.NET Compact Framework
Unterstützt in: 2.0, 1.0