PartChromeState Enumerazione

Definizione

Specifica se un controllo e il bordo che lo delimita si trovano nello stato normale o ridotto a icona.Specifies whether a control and the border surrounding it are in a normal or minimized state.

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

Campi

Minimized 1

Controllo e relativo bordo in uno stato ridotto a icona o compresso.A control and border in a collapsed or minimized state.

Normal 0

Controllo e relativo bordo in uno stato normale.A control and border in a normal state.

Esempi

Gli esempi di codice seguenti illustrano l'uso dichiarativo dell' PartChromeState 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 PartChromeState 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 ChromeState proprietà, che usa l' PartChromeState enumerazione come tipo restituito.Because the control derives from WebPart, it also inherits the common properties that the Part class provides, including the ChromeState property, which uses the PartChromeState 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 ne ChromeState imposta la proprietà.Note that in the declarative markup for the Web page, the second instance of the TextDisplayWebPart control sets its ChromeState property. 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.

<%@ 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' PartChromeState enumerazione rappresenta i possibili stati visibili a cui possono trovarsi un controllo Web part e il bordo circostante.The PartChromeState enumeration represents the possible visible states that a Web Parts control and its surrounding border can be in.

Si applica a

Vedi anche