我建立我这自CompositeControl控制HTML控件
继承的原因控制是能够对多个在线一致的内容区域(HTML元素)第一自定义服务器控件我们开发的应用程序。的
因此而不必经常打出来:
<div class="titleBar">
</div>
<div class="actionBar">
</div>
<div class="workspace">
</div>
的开发人员可以添加如下服务器控制:
<custom:Workspace id="..." runat="server" Title="MyTitle">
<TitleBar>
Here is the title
</TitleBar>
<ActionBar>
<asp:button id="..." runat="server" Title="MyButton" />
</ActionBar>
<Content>
<asp:DataGrid id="..." runat="server" />
</Content>
</custom:Workspace>
我读的文章在http://msdn.microsoft.com/en-us/library/ms178657.aspx和它的作品,但问题是......我不明白为什么。 (有没有人有链接到一篇文章的外行人的版本,描述如何建立这些类型的服务器控件?)
我注意到的主要事情到目前为止,是Asp.net呈现一堆SPAN元素,其中当然我不想要。
如何控制新的CompositeControl输出的HTML?
感谢, 雅克
PS。这里是我到目前为止的代码:
using System;
using System.ComponentModel;
using System.Drawing;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.Design;
namespace TemplatedServerControl
{
[DefaultProperty("Title")]
[ToolboxData("<{0}:Workspace runat=server></{0}:Workspace>")]
public class Workspace : CompositeControl
{
#region FIELDS
private ITemplate _TitleBarTemplateValue;
private ITemplate _ActionBarTemplateValue;
private TemplateOwner _TitleBarOwnerValue;
private TemplateOwner _ActionBarOwnerValue;
#endregion
#region PROPERTY - TitleBarOwner
[Browsable(false),
DesignerSerializationVisibility(
DesignerSerializationVisibility.Hidden)]
public TemplateOwner TitleBarOwner
{
get
{
return _TitleBarOwnerValue;
}
}
#endregion
#region PROPERTY - ActionBarOwner
[Browsable(false),
DesignerSerializationVisibility(
DesignerSerializationVisibility.Hidden)]
public TemplateOwner ActionBarOwner
{
get
{
return _ActionBarOwnerValue;
}
}
#endregion
#region PROPERTY - Title
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("[Provide the title for the workspace]")]
[Localizable(true)]
public string Title
{
get
{
String s = (String)ViewState["Title"];
return ((s == null) ? "[" + this.ID + "]" : s);
}
set
{
ViewState["Text"] = value;
}
}
#endregion
#region PROPERTY - TitleBar
[Browsable(false),
PersistenceMode(PersistenceMode.InnerProperty),
DefaultValue(typeof(ITemplate), ""),
Description("Control template"),
TemplateContainer(typeof(Workspace))]
public virtual ITemplate TitleBar
{
get
{
return _TitleBarTemplateValue;
}
set
{
_TitleBarTemplateValue = value;
}
}
#endregion
#region PROPERTY - ActionBar
[Browsable(false),
PersistenceMode(PersistenceMode.InnerProperty),
DefaultValue(typeof(ITemplate), ""),
Description("Control template"),
TemplateContainer(typeof(Workspace))]
public virtual ITemplate ActionBar
{
get
{
return _ActionBarTemplateValue;
}
set
{
_ActionBarTemplateValue = value;
}
}
#endregion
#region METHOD - CreateChildControls()
protected override void CreateChildControls()
{
//base.CreateChildControls();
Controls.Clear();
_TitleBarOwnerValue = new TemplateOwner();
_ActionBarOwnerValue = new TemplateOwner();
ITemplate temp1 = _TitleBarTemplateValue;
ITemplate temp2 = _ActionBarTemplateValue;
temp1.InstantiateIn(_TitleBarOwnerValue);
temp2.InstantiateIn(_ActionBarOwnerValue);
this.Controls.Add(_TitleBarOwnerValue);
this.Controls.Add(_ActionBarOwnerValue);
}
#endregion
#region METHOD - RenderContents(HtmlTextWriter writer)
protected override void RenderContents(HtmlTextWriter writer)
{
base.RenderContents(writer);
}
#endregion
}
[ToolboxItem(false)]
public class TemplateOwner : WebControl
{
}
}
感谢迈克尔真的欣赏它编程控制。我会试一试。你有没有机会链接到一个教程,将更详细地解释复合控件和模板? – Jacques 2012-04-05 07:13:38
我不知道任何关于我头顶的物品。如果您有更多问题,请随时询问。 :-) – 2012-04-05 13:44:42