本文整理汇总了C#中System.Web.UI.HtmlControls.HtmlSelectBuilder类的典型用法代码示例。如果您正苦于以下问题：C# HtmlSelectBuilder类的具体用法？C# HtmlSelectBuilder怎么用？C# HtmlSelectBuilder使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
HtmlSelectBuilder类属于System.Web.UI.HtmlControls命名空间，在下文中一共展示了HtmlSelectBuilder类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetChildControlType
//引入命名空间
using System;
using System.Security.Permissions;
using System.Collections;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace Samples.AspNet.CS.Controls
{
// Define a type of child control for the custom HtmlSelect control.
public class MyOption1
{
string _id;
string _value;
string _text;
public string optionid
{
get
{ return _id; }
set
{ _id = value; }
}
public string value
{
get
{ return _value; }
set
{ _value = value; }
}
public string text
{
get
{ return _text; }
set
{ _text = value; }
}
}
// Define a type of child control for the custom HtmlSelect control.
public class MyOption2
{
string _id;
string _value;
string _text;
public string optionid
{
get
{ return _id; }
set
{ _id = value; }
}
public string value
{
get
{ return _value; }
set
{ _value = value; }
}
public string text
{
get
{ return _text; }
set
{ _text = value; }
}
}
// Define a custom HtmlSelectBuilder control.
public class MyHtmlSelectBuilder : HtmlSelectBuilder
{
[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
public override Type GetChildControlType(string tagName, IDictionary attribs)
{
// Distinguish between two possible types of child controls.
if (tagName.ToLower().EndsWith("myoption1"))
{
return typeof(MyOption1);
}
else if (tagName.ToLower().EndsWith("myoption2"))
{
return typeof(MyOption2);
}
return null;
}
}
[ControlBuilderAttribute(typeof(MyHtmlSelectBuilder))]
public class CustomHtmlSelect : HtmlSelect
{
// Override AddParsedSubObject to treat the two types
// of child controls differently.
protected override void AddParsedSubObject(object obj)
{
string _outputtext;
if (obj is MyOption1)
{
_outputtext = "option group 1: " + ((MyOption1)obj).text;
ListItem li = new ListItem(_outputtext, ((MyOption1)obj).value);
base.Items.Add(li);
}
if (obj is MyOption2)
{
_outputtext = "option group 2: " + ((MyOption2)obj).text;
ListItem li = new ListItem(_outputtext, ((MyOption2)obj).value);
base.Items.Add(li);
}
}
}
}