PartChromeState 枚举
定义
指定控件及其周围的边框是处于正常状态还是最小化状态。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
- 继承
字段
| Minimized | 1 | 处于折叠或最小化状态的控件和边框。A control and border in a collapsed or minimized state. |
| Normal | 0 | 处于正常状态的控件和边框。A control and border in a normal state. |
示例
下面的代码示例演示如何 PartChromeState 使用 WebPart ASP.NET 网页中引用的自定义控件来声明枚举。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. 要使代码示例运行,必须编译此源代码。For the code example to run, you must compile this source code. 可以显式编译该程序集,并将生成的程序集放在网站的 Bin 文件夹或全局程序集缓存中。You can compile it explicitly and put the resulting assembly in your Web site's Bin folder or the global assembly cache. 或者,您可以将源代码放在站点的 App_Code 文件夹中,它将在运行时动态编译。Alternatively, you can put the source code in your site's App_Code folder, where it will be dynamically compiled at run time. 有关演示两种编译方法的演练,请参阅 演练:开发和使用自定义 Web 服务器控件。For a walkthrough that demonstrates both methods of compiling, see Walkthrough: Developing and Using a Custom Web Server Control.
该示例的第一部分包含名为的自定义控件的代码 TextDisplayWebPart 。The first part of the example contains the code for the custom control, named TextDisplayWebPart. 由于控件派生自 WebPart ,因此它还继承类提供的公共属性 Part ,包括 ChromeState 属性,该属性使用 PartChromeState 枚举作为其返回类型。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
请注意,在网页的声明性标记中,该控件的第二个实例 TextDisplayWebPart 将设置其 ChromeState 属性。Note that in the declarative markup for the Web page, the second instance of the TextDisplayWebPart control sets its ChromeState property. 在浏览器中加载页面后,第二个控制实例会最小化显示。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>
注解
PartChromeState枚举表示 Web 部件控件及其周围边框可以处于的状态。The PartChromeState enumeration represents the possible visible states that a Web Parts control and its surrounding border can be in.