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//
// System.Web.UI.HtmlControls.HtmlControl.cs
//
// Author
// Bob Smith <bob@thestuff.net>
//
//
// (C) Bob Smith
//
using System;
using System.Globalization;
using System.Web;
using System.Web.UI;
namespace System.Web.UI.HtmlControls{
public abstract class HtmlControl : Control, IAttributeAccessor
{
private string _tagName = "span";
//TODO: Is this correct, or is the StateBag really the ViewState?
private AttributeCollection _attributes = new AttributeCollection(new StateBag(true));
private bool _disabled = false;
public HtmlControl(){}
public HtmlControl(string tag)
{
if(tag != null && tag != String.Empty) _tagName = tag;
}
internal static string AttributeToString(int n){
if (n != -1)return n.ToString(NumberFormatInfo.InvariantInfo);
return null;
}
internal static string AttributeToString(string s){
if (s != null && s.Length != 0) return s;
return null;
}
internal void PreProcessRelativeReference(HtmlTextWriter writer, string attribName){
string attr = Attributes[attribName];
if (attr != null){
if (attr.Length != 0){
try{
attr = ResolveUrl(attr);
}
catch (Exception e) {
throw new HttpException(attribName + " property had malformed url");
}
writer.WriteAttribute(attribName, attr);
Attributes.Remove(attribName);
}
}
}
string System.Web.UI.IAttributeAccessor.GetAttribute(string name){
return Attributes[name];
}
void System.Web.UI.IAttributeAccessor.SetAttribute(string name, string value){
Attributes[name] = value;
}
protected virtual void RenderBeginTag (HtmlTextWriter writer)
{
writer.WriteBeginTag (TagName);
RenderAttributes (writer);
writer.Write ('>');
}
protected override void Render (HtmlTextWriter writer)
{
RenderBeginTag (writer);
}
protected virtual void RenderAttributes(HtmlTextWriter writer){
if (ID != null){
writer.WriteAttribute("id",ClientID);
}
Attributes.Render(writer);
}
public AttributeCollection Attributes
{
get { return _attributes; }
}
public bool Disabled
{
get { return _disabled; }
set { _disabled = value; }
}
public CssStyleCollection Style
{
get { return _attributes.CssStyle; }
}
public virtual string TagName
{
get { return _tagName; }
}
}
}
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