LinkLabel.LinkCollection.IndexOf(LinkLabel+Link) LinkLabel.LinkCollection.IndexOf(LinkLabel+Link) LinkLabel.LinkCollection.IndexOf(LinkLabel+Link) Method

定義

コレクション内の指定したリンクのインデックスを返します。Returns the index of the specified link within the collection.

public:
 int IndexOf(System::Windows::Forms::LinkLabel::Link ^ link);
public int IndexOf (System.Windows.Forms.LinkLabel.Link link);
member this.IndexOf : System.Windows.Forms.LinkLabel.Link -> int

パラメーター

link
LinkLabel.Link LinkLabel.Link LinkLabel.Link

コレクション内で検索するリンクを表す LinkLabel.LinkA LinkLabel.Link representing the link to search for in the collection.

戻り値

リンクがコレクション内に存在する場合はその項目の 0 から始まるインデックス番号。それ以外の場合は -1。The zero-based index where the link is located within the collection; otherwise, negative one (-1).

次のコード例は、設定を示します、LinkBehaviorプロパティを使用して、LinkBehavior列挙体。The following code example demonstrates setting the LinkBehavior property using the LinkBehavior enumeration. 設定も示しています、 ActiveLinkColorLinkColorTextLinkVisitedプロパティおよび追加のリンクにアクセスして、LinkLabel.LinkCollectionします。It also demonstrates setting the ActiveLinkColor, LinkColor, Text and LinkVisited properties and adding and accessing links in a LinkLabel.LinkCollection. この例を実行する呼び出しを空白のフォームに貼り付けるInitializeLinkLabelフォームのコンス トラクターからまたはLoadイベント ハンドラー。To run this example, paste it in a blank form and call InitializeLinkLabel from the form's constructor or Load event handler.

   // Declare the LinkLabel object.
internal:
   System::Windows::Forms::LinkLabel^ LinkLabel1;

   // Declare keywords array to identify links
   array<String^>^keywords;

private:
   void InitializeLinkLabel()
   {
      this->LinkLabel1 = gcnew System::Windows::Forms::LinkLabel;
      this->LinkLabel1->Links->Clear();
      // Set the location, name and size.
      this->LinkLabel1->Location = System::Drawing::Point( 10, 20 );
      this->LinkLabel1->Name = "CompanyLinks";
      this->LinkLabel1->Size = System::Drawing::Size( 104, 150 );
      
      // Set the LinkBehavior property to show underline when mouse
      // hovers over the links.
      this->LinkLabel1->LinkBehavior = System::Windows::Forms::LinkBehavior::HoverUnderline;
      String^ textString = "For more information see our"
      " company website or the research page at Contoso Ltd. ";
      
      // Set the text property.
      this->LinkLabel1->Text = textString;
      
      // Set the color of the links to black, unless the mouse
      // is hovering over a link.
      this->LinkLabel1->LinkColor = System::Drawing::Color::Black;
      this->LinkLabel1->ActiveLinkColor = System::Drawing::Color::Blue;
      
      // Associate the event-handling method with the LinkClicked
      // event.
      this->LinkLabel1->LinkClicked += gcnew LinkLabelLinkClickedEventHandler( this, &Form1::LinkLabel1_LinkClicked );
      
      // Add links to the LinkCollection using starting index and
      // length of keywords.
      array<String^>^temp0 = {"company","research"};
      keywords = temp0;
      System::Collections::IEnumerator^ myEnum = keywords->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         String^ keyword = safe_cast<String^>(myEnum->Current);
         this->LinkLabel1->Links->Add( textString->IndexOf( keyword ), keyword->Length );
      }

      
      // Add the label to the form.
      this->Controls->Add( this->LinkLabel1 );
   }

   void LinkLabel1_LinkClicked( Object^ /*sender*/, LinkLabelLinkClickedEventArgs^ e )
   {
      String^ url = "";
      
      // Determine which link was clicked and set the appropriate url.
      switch ( LinkLabel1->Links->IndexOf( e->Link ) )
      {
         case 0:
            url = "www.microsoft.com";
            break;

         case 1:
            url = "www.contoso.com/research";
            break;
      }
      
      // Set the visited property to True. This will change
      // the color of the link.
      e->Link->Visited = true;
      
      // Open Internet Explorer to the correct url.
      System::Diagnostics::Process::Start( "IExplore.exe", url );
   }

// Declare the LinkLabel object.
internal System.Windows.Forms.LinkLabel LinkLabel1;

// Declare keywords array to identify links
string[] keywords;

private void InitializeLinkLabel()
{
	this.LinkLabel1 = new System.Windows.Forms.LinkLabel();
               this.LinkLabel1.Links.Clear();

	// Set the location, name and size.
	this.LinkLabel1.Location = new System.Drawing.Point(10, 20);
	this.LinkLabel1.Name = "CompanyLinks";
	this.LinkLabel1.Size = new System.Drawing.Size(104, 150);

	// Set the LinkBehavior property to show underline when mouse
	// hovers over the links.
	this.LinkLabel1.LinkBehavior = System.Windows.Forms.LinkBehavior.HoverUnderline;
	string textString = "For more information see our" +
		" company website or the research page at Contoso Ltd. ";

	// Set the text property.
	this.LinkLabel1.Text = textString;

	// Set the color of the links to black, unless the mouse
	// is hovering over a link.
	this.LinkLabel1.LinkColor = System.Drawing.Color.Black;
	this.LinkLabel1.ActiveLinkColor = System.Drawing.Color.Blue;

	// Associate the event-handling method with the LinkClicked
	// event.
	this.LinkLabel1.LinkClicked += 
		new LinkLabelLinkClickedEventHandler(LinkLabel1_LinkClicked);

	// Add links to the LinkCollection using starting index and
	// length of keywords.
	keywords = new string[]{"company", "research"};
	foreach ( string keyword in keywords )
	{
		this.LinkLabel1.Links.Add(textString.IndexOf(keyword), keyword.Length);
	}

	// Add the label to the form.
	this.Controls.Add(this.LinkLabel1);
}

private void LinkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{

	string url = "";

	// Determine which link was clicked and set the appropriate url.
	switch(LinkLabel1.Links.IndexOf(e.Link))
	{
		case 0:
			url = "www.microsoft.com";

			break;
		case 1:
			url = "www.contoso.com/research";
			break;
	}

	// Set the visited property to True. This will change
	// the color of the link.
	e.Link.Visited = true;

	// Open Internet Explorer to the correct url.
	System.Diagnostics.Process.Start("IExplore.exe", url);
}

' Declare the LinkLabel object.
Friend WithEvents LinkLabel1 As System.Windows.Forms.LinkLabel

' Declare keywords array to identify links
Dim keywords() As String

Private Sub InitializeLinkLabel()
    Me.LinkLabel1 = New System.Windows.Forms.LinkLabel
    Me.LinkLabel1.Links.Clear()
    ' Set the location, name and size.
    Me.LinkLabel1.Location = New System.Drawing.Point(10, 20)
    Me.LinkLabel1.Name = "CompanyLinks"
    Me.LinkLabel1.Size = New System.Drawing.Size(104, 150)

    ' Set the LinkBehavior property to show underline when mouse
    ' hovers over the links.
    Me.LinkLabel1.LinkBehavior = _
        System.Windows.Forms.LinkBehavior.HoverUnderline
    Dim textString As String = "For more information see our" & _
       " company website or the research page at Contoso Ltd. "

    ' Set the text property.
    Me.LinkLabel1.Text = textString

    ' Set the color of the links to black, unless the mouse
    ' is hovering over a link.
    Me.LinkLabel1.LinkColor = System.Drawing.Color.Black
    Me.LinkLabel1.ActiveLinkColor = System.Drawing.Color.Blue

    ' Add links to the LinkCollection using starting index and
    ' length of keywords.
    keywords = New String() {"company", "research"}
    Dim keyword As String
    For Each keyword In keywords
        Me.LinkLabel1.Links.Add(textString.IndexOf(keyword), keyword.Length)
    Next

    ' Add the label to the form.
    Me.Controls.Add(Me.LinkLabel1)
End Sub

Private Sub LinkLabel1_LinkClicked(ByVal sender As Object, _
    ByVal e As LinkLabelLinkClickedEventArgs) _
    Handles LinkLabel1.LinkClicked

    Dim url As String

    ' Determine which link was clicked and set the appropriate url.
    Select Case LinkLabel1.Links.IndexOf(e.Link)
        Case 0
            url = "www.microsoft.com"

        Case 1
            url = "www.contoso.com/research"
    End Select

    ' Set the visited property to True. This will change
    ' the color of the link.
    e.Link.Visited = True

    ' Open Internet Explorer to the correct url.
    System.Diagnostics.Process.Start("IExplore.exe", url)
End Sub

注釈

IndexOfメソッドでは、リンクがコレクション内にある場所を決定することができます。The IndexOf method enables you to determine where a link is located within the collection. リンクがこのメソッドを呼び出す前に、コレクション内にあるかどうかを調べるには、Containsメソッド。To determine if a link is located within the collection before calling this method, use the Contains method.

適用対象