PartChromeType Enumerazione

Definizione

Specifica il tipo di bordo che delimita un controllo web part.Specifies the kind of border that surrounds a Web Parts control.

public enum class PartChromeType
public enum PartChromeType
type PartChromeType = 
Public Enum PartChromeType
Ereditarietà
PartChromeType

Campi

BorderOnly 4

Solo un bordo senza barra del titolo.A border only, without a title bar.

Default 0

Impostazione di un bordo ereditata dall'area contenente il controllo Web part.A border setting inherited from the part control's containing zone.

None 2

Nessun bordo e nessuna barra del titolo.No border and no title bar.

TitleAndBorder 1

Una barra del titolo e un bordo.A title bar and a border.

TitleOnly 3

Solo una barra del titolo senza bordo.A title bar only, without a border.

Esempi

Gli esempi di codice seguenti illustrano l'uso dichiarativo dell' PartChromeType enumerazione usando un controllo personalizzato WebPart a cui si fa riferimento in una pagina Web ASP.NET.The following code examples demonstrate the declarative use of the PartChromeType enumeration by using a custom WebPart control referenced in an ASP.NET Web page. Per eseguire l'esempio di codice, è necessario compilare questo codice sorgente.For the code example to run, you must compile this source code. È possibile compilarlo in modo esplicito e inserire l'assembly risultante nella cartella bin del sito Web o nel Global Assembly Cache.You can compile it explicitly and put the resulting assembly in your Web site's Bin folder or the global assembly cache. In alternativa, è possibile inserire il codice sorgente nella cartella App_Code del sito, in cui verrà compilato dinamicamente in fase di esecuzione.Alternatively, you can put the source code in your site's App_Code folder, where it will be dynamically compiled at run time. Per una procedura dettagliata in cui vengono illustrati entrambi i metodi di compilazione, vedere Procedura dettagliata: Sviluppo e utilizzo di un controlloserver Web personalizzato.For a walkthrough that demonstrates both methods of compiling, see Walkthrough: Developing and Using a Custom Web Server Control.

La prima parte dell'esempio contiene il codice per il controllo personalizzato, denominato TextDisplayWebPart.The first part of the example contains the code for the custom control, named TextDisplayWebPart. Poiché il WebPartcontrollo deriva da, eredita anche le proprietà comuni fornite dalla Part classe, inclusa la ChromeType proprietà, che usa l' PartChromeType enumerazione come tipo restituito.Because the control derives from WebPart, it also inherits the common properties that the Part class provides, including the ChromeType property, which uses the PartChromeType enumeration as its return type.

using System;
using System.Security.Permissions;
using System.Web;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

namespace Samples.AspNet.CS.Controls
{
  [AspNetHostingPermission(SecurityAction.Demand, 
    Level=AspNetHostingPermissionLevel.Minimal)]
  [AspNetHostingPermission(SecurityAction.InheritanceDemand, 
    Level=AspNetHostingPermissionLevel.Minimal)]
  public class TextDisplayWebPart : WebPart
  {
    private String _contentText = null;
    TextBox input;
    Label DisplayContent;
    const string _subTitle = "Contoso, Ltd";

    public TextDisplayWebPart()
    {
      this.AllowClose = false;
    }

    [
      Personalizable(PersonalizationScope.User, true),
      WebBrowsable()
    ]
    public String ContentText
    {
      get { return _contentText; }
      set { _contentText = value; }
    }

    protected override void CreateChildControls()
    {
      Controls.Clear();
      DisplayContent = new Label();
      DisplayContent.BackColor = 
        System.Drawing.Color.LightBlue;
      DisplayContent.Text = this.ContentText;
      this.Controls.Add(DisplayContent);
      input = new TextBox();
      this.Controls.Add(input);
      Button update = new Button();
      update.Text = "Set Label Content";
      update.Click += new EventHandler(this.submit_Click);
      this.Controls.Add(update);
      ChildControlsCreated = true;
    }

    private void submit_Click(object sender, EventArgs e)
    {
      // Update the label string.
      if (!string.IsNullOrEmpty(input.Text))
      {
        this.ContentText = Page.Server.HtmlEncode(input.Text) + @"<br />";
        // Clear the input textbox.
        input.Text = String.Empty;
        DisplayContent.Text = this.ContentText;
      }
    }
  }
}
Imports System.Security.Permissions
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts

Namespace Samples.AspNet.VB.Controls

<AspNetHostingPermission(SecurityAction.Demand, _
  Level := AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermission(SecurityAction.InheritanceDemand, _
  Level := AspNetHostingPermissionLevel.Minimal)> _
Public Class TextDisplayWebPart
    Inherits WebPart
    Private _contentText As String = Nothing
    Private input As TextBox
    Private DisplayContent As Label
    
    
    Public Sub New() 
      Me.AllowClose = False
    End Sub
    
    <Personalizable(), WebBrowsable()>  _
    Public Property ContentText() As String 
        Get
            Return _contentText
        End Get
        Set
            _contentText = value
        End Set
    End Property
     
    Protected Overrides Sub CreateChildControls() 
        Controls.Clear()
        DisplayContent = New Label()
        DisplayContent.Text = Me.ContentText
        DisplayContent.BackColor = _
          System.Drawing.Color.LightBlue
        Me.Controls.Add(DisplayContent)
        input = New TextBox()
        Me.Controls.Add(input)
        Dim update As New Button()
        update.Text = "Set Label Content"
        AddHandler update.Click, AddressOf Me.submit_Click
        Me.Controls.Add(update)
        ChildControlsCreated = True
    
    End Sub
    
    
    Private Sub submit_Click(ByVal sender As Object, _
                             ByVal e As EventArgs) 
        ' Update the label string.
        If input.Text <> String.Empty Then
            Me.ContentText = Page.Server.HtmlEncode(input.Text) + "<br />"
            ' Clear the input textbox.
            input.Text = String.Empty
            DisplayContent.Text = Me.ContentText
        End If
    
    End Sub
    
End Class

End Namespace

Si noti che nel markup dichiarativo per la pagina Web la seconda istanza del TextDisplayWebPart controllo ChromeType imposta il valore della proprietà su TitleOnly.Note that in the declarative markup for the Web page, the second instance of the TextDisplayWebPart control sets its ChromeType property value to TitleOnly. Una volta caricata la pagina in un browser, viene visualizzata la seconda istanza del controllo ridotta a icona.After you load the page in a browser, the second control instance appears minimized. Quando si espande il secondo controllo, dispone solo di una barra del titolo senza bordo.When you expand the second control, it has only a title bar without a border.

<%@ page language="C#" %>
<%@ register tagprefix="aspSample" 
             Namespace="Samples.AspNet.CS.Controls" 
             Assembly="TextDisplayWebPartCS" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
  <form id="Form1" runat="server">
    <asp:webpartmanager id="WebPartManager1" runat="server" />
    <asp:webpartzone
      id="WebPartZone1"
      runat="server"
      backcolor="#99cccc">
        <parttitlestyle font-bold="true" forecolor="#ffffff" />
        <partstyle
          borderwidth="1px" 
          borderstyle="Solid" 
          bordercolor="#81AAF2" />
        <zonetemplate>
          <aspSample:TextDisplayWebPart 
            runat="server"   
            id="textwebpart" 
            title = "Text Content WebPart" 
            Description="A text content WebPart control."
            ChromeType="TitleAndBorder"
            width="350px" />
        </zonetemplate>
    </asp:webpartzone>
    <asp:webpartzone
      id="WebPartZone2"
      runat="server"
      backcolor="#99cccc">
        <parttitlestyle font-bold="true" forecolor="#ffffff" />
        <partstyle
          borderwidth="1px" 
          borderstyle="Solid" 
          bordercolor="#81AAF2" />
        <zonetemplate>
          <aspSample:TextDisplayWebPart 
            runat="server"   
            id="textwebpart2" 
            title = "Text Content WebPart 2" 
            Description="A text content WebPart control."
            ChromeType="TitleOnly"
            ChromeState="Minimized"
            width="350px" />
        </zonetemplate>
    </asp:webpartzone>
  </form>
</body>
</html>
<%@ page language="VB" %>
<%@ register tagprefix="aspSample" 
             Namespace="Samples.AspNet.VB.Controls" 
             Assembly="TextDisplayWebPartVB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
  <form id="Form1" runat="server">
    <asp:webpartmanager id="WebPartManager1" runat="server" />
    <asp:webpartzone
      id="WebPartZone1"
      runat="server"
      backcolor="#99cccc">
        <parttitlestyle font-bold="true" forecolor="#ffffff" />
        <partstyle
          borderwidth="1px" 
          borderstyle="Solid" 
          bordercolor="#81AAF2" />
        <zonetemplate>
          <aspSample:TextDisplayWebPart 
            runat="server"   
            id="textwebpart" 
            title = "Text Content WebPart" 
            Description="A text content WebPart control."
            ChromeType="TitleAndBorder"
            width="350px" />
        </zonetemplate>
    </asp:webpartzone>
    <asp:webpartzone
      id="WebPartZone2"
      runat="server"
      backcolor="#99cccc">
        <parttitlestyle font-bold="true" forecolor="#ffffff" />
        <partstyle
          borderwidth="1px" 
          borderstyle="Solid" 
          bordercolor="#81AAF2" />
        <zonetemplate>
          <aspSample:TextDisplayWebPart 
            runat="server"   
            id="textwebpart2" 
            title = "Text Content WebPart 2" 
            Description="A text content WebPart control."
            ChromeType="TitleOnly"
            ChromeState="Minimized"
            width="350px" />
        </zonetemplate>
    </asp:webpartzone>
  </form>
</body>
</html>

Commenti

L' PartChromeType enumerazione di un controllo parte determina il tipo di bordo che racchiude un controllo Web part.A part control's PartChromeType enumeration determines what kind of border surrounds a Web Parts control. Le opzioni includono solo la visualizzazione di una barra del titolo, solo un bordo, una barra del titolo e un bordo o nessuno dei due.Options include showing a title bar only, a border only, a title bar and border, or neither.

Se il valore di enumerazione è impostato su default sulla ChromeType proprietà di un controllo part, il controllo eredita la relativa impostazione PartChromeType dalla proprietà della zona che contiene il controllo.If the enumeration value is set to Default on the ChromeType property of a part control, the control inherits its setting from the PartChromeType property of the zone that contains the control.

Si applica a

Vedi anche