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//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//
// System.Web.UI.HtmlControls.HtmlButton
//
// Authors:
// Jackson Harper (jackson@ximian.com)
//
// (C) 2005 Novell, Inc.
using System.ComponentModel;
using System.Security.Permissions;
namespace System.Web.UI.HtmlControls {
// CAS
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
[DefaultEvent("ServerClick")]
#if NET_2_0
[SupportsEventValidation]
#endif
public class HtmlButton : HtmlContainerControl, IPostBackEventHandler {
private static readonly object ServerClickEvent = new object();
public HtmlButton () : base ("button")
{
}
[DefaultValue(true)]
[WebSysDescription("")]
[WebCategory("Behavior")]
#if NET_2_0
public virtual
#else
public
#endif
bool CausesValidation {
get {
return ViewState.GetBool ("CausesValidation", true);
}
set {
ViewState ["CausesValidation"] = value;
}
}
#if NET_2_0
[DefaultValue ("")]
public string ValidationGroup
{
get {
return ViewState.GetString ("ValidationGroup", "");
}
set {
ViewState ["ValidationGroup"] = value;
}
}
#endif
#if NET_2_0
void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
{
RaisePostBackEvent (eventArgument);
}
protected virtual void RaisePostBackEvent (string eventArgument)
#else
void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
#endif
{
if (CausesValidation)
#if NET_2_0
Page.Validate (ValidationGroup);
#else
Page.Validate ();
#endif
OnServerClick (EventArgs.Empty);
}
#if NET_2_0
protected internal
#else
protected
#endif
override void OnPreRender (EventArgs e)
{
base.OnPreRender (e);
}
protected virtual void OnServerClick (EventArgs e)
{
EventHandler server_click = (EventHandler) Events [ServerClickEvent];
if (server_click != null)
server_click (this, e);
}
protected override void RenderAttributes (HtmlTextWriter writer)
{
ClientScriptManager csm = new ClientScriptManager (Page);
bool postback = false;
if (Page != null && Events [ServerClickEvent] != null)
postback = true;
if (CausesValidation && Page != null && Page.AreValidatorsUplevel ()) {
if (postback)
writer.WriteAttribute ("onclick",
String.Format ("javascript:{{if (typeof(Page_ClientValidate) != 'function' || Page_ClientValidate()) {0}}}",
csm.GetPostBackEventReference (this, String.Empty)));
else
writer.WriteAttribute ("onclick",
"if (typeof(Page_ClientValidate) == 'function') Page_ClientValidate();");
writer.WriteAttribute ("language", "javascript");
}
else if (postback) {
writer.WriteAttribute ("onclick",
Page.ClientScript.GetPostBackClientHyperlink (this, ""));
writer.WriteAttribute ("language", "javascript");
}
base.RenderAttributes (writer);
}
[WebSysDescription("")]
[WebCategory("Action")]
public event EventHandler ServerClick {
add { Events.AddHandler (ServerClickEvent, value); }
remove { Events.RemoveHandler (ServerClickEvent, value); }
}
}
}
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