Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / UI / WebControls / ImageButton.cs / 1 / ImageButton.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Web.UI.WebControls {
using System;
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Drawing.Design;
using System.Globalization;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.Util;
///
/// Creates a control that displays an image, responds to mouse clicks,
/// and records the mouse pointer position.
///
[
DefaultEvent("Click"),
Designer("System.Web.UI.Design.WebControls.PreviewControlDesigner, " + AssemblyRef.SystemDesign),
SupportsEventValidation,
]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class ImageButton : Image, IPostBackDataHandler, IPostBackEventHandler, IButtonControl {
private static readonly object EventClick = new object();
private static readonly object EventButtonClick = new object();
private static readonly object EventCommand = new object();
private int x = 0;
private int y = 0;
///
/// Initializes a new instance of the
///
public ImageButton() {
}
///
/// Gets or sets the command associated with the
///
[
DefaultValue(""),
WebCategory("Behavior"),
WebSysDescription(SR.WebControl_CommandName),
Themeable(false),
]
public string CommandName {
get {
string s = (string)ViewState["CommandName"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["CommandName"] = value;
}
}
///
/// Gets or sets an optional argument that is propogated in
/// the
///
[
Bindable(true),
DefaultValue(""),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.WebControl_CommandArgument),
]
public string CommandArgument {
get {
string s = (string)ViewState["CommandArgument"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["CommandArgument"] = value;
}
}
///
/// Gets or sets whether pressing the button causes page validation to fire. This defaults to True so that when
/// using validation controls, the validation state of all controls are updated when the button is clicked, both
/// on the client and the server. Setting this to False is useful when defining a cancel or reset button on a page
/// that has validators.
///
[
Themeable(false),
DefaultValue(true),
WebCategory("Behavior"),
WebSysDescription(SR.Button_CausesValidation)
]
public virtual bool CausesValidation {
get {
object b = ViewState["CausesValidation"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["CausesValidation"] = value;
}
}
#if SITECOUNTERS
[
DefaultValue("ImageButton"),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_CounterGroup),
]
public String CounterGroup {
get {
String s = (String)ViewState["CounterGroup"];
return((s == null) ? "ImageButton" : s);
}
set {
ViewState["CounterGroup"] = value;
}
}
[
DefaultValue(""),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_CounterName),
]
public String CounterName {
get {
String s = (String)ViewState["CounterName"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["CounterName"] = value;
}
}
[
DefaultValue(false),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_CountClicks),
]
public bool CountClicks {
get {
object b = ViewState["CountClicks"];
return((b == null) ? false : (bool)b);
}
set {
ViewState["CountClicks"] = value;
}
}
#endif
[
Browsable(true),
EditorBrowsableAttribute(EditorBrowsableState.Always),
Bindable(true),
WebCategory("Behavior"),
DefaultValue(true),
WebSysDescription(SR.WebControl_Enabled)
]
public override bool Enabled {
get {
return base.Enabled;
}
set {
base.Enabled = value;
}
}
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
EditorBrowsable(EditorBrowsableState.Never),
Themeable(false),
]
public override bool GenerateEmptyAlternateText {
get {
return base.GenerateEmptyAlternateText;
}
set {
throw new NotSupportedException(SR.GetString(
SR.Property_Set_Not_Supported, "GenerateEmptyAlternateText", this.GetType().ToString()));
}
}
///
/// The script that is executed on a client-side click.
///
[
DefaultValue(""),
WebCategory("Behavior"),
WebSysDescription(SR.Button_OnClientClick),
Themeable(false),
]
public virtual string OnClientClick {
get {
string s = (string)ViewState["OnClientClick"];
if (s == null) {
return String.Empty;
}
return s;
}
set {
ViewState["OnClientClick"] = value;
}
}
[
DefaultValue(""),
Editor("System.Web.UI.Design.UrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
Themeable(false),
UrlProperty("*.aspx"),
WebCategory("Behavior"),
WebSysDescription(SR.Button_PostBackUrl),
]
public virtual string PostBackUrl {
get {
string s = (string)ViewState["PostBackUrl"];
return s == null? String.Empty : s;
}
set {
ViewState["PostBackUrl"] = value;
}
}
#if SITECOUNTERS
[
DefaultValue(-1),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_RowsPerDay),
]
public int RowsPerDay {
get {
Object o = ViewState["RowsPerDay"];
return((o == null) ? -1 : (int) o);
}
set {
if (value == 0) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["RowsPerDay"] = value;
}
}
[
DefaultValue(""),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_SiteCountersProvider),
]
public String SiteCountersProvider {
get {
String s = (String) ViewState["SiteCountersProvider"];
return((s != null) ? s : String.Empty);
}
set {
ViewState["SiteCountersProvider"] = value;
}
}
#endif
///
/// Gets a value that represents the tag HtmlTextWriterTag.Input. This property is read-only.
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
protected override HtmlTextWriterTag TagKey {
get {
return HtmlTextWriterTag.Input;
}
}
#if SITECOUNTERS
[
DefaultValue(true),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_TrackApplicationName),
]
public bool TrackApplicationName {
get {
object b = ViewState["TrackApplicationName"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["TrackApplicationName"] = value;
}
}
[
DefaultValue(true),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_TrackPageUrl),
]
public bool TrackPageUrl {
get {
object b = ViewState["TrackPageUrl"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["TrackPageUrl"] = value;
}
}
#endif
[
WebCategory("Behavior"),
Themeable(false),
DefaultValue(""),
WebSysDescription(SR.PostBackControl_ValidationGroup)
]
public virtual string ValidationGroup {
get {
string s = (string)ViewState["ValidationGroup"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["ValidationGroup"] = value;
}
}
///
/// Represents the method that will handle the
///
[
WebCategory("Action"),
WebSysDescription(SR.ImageButton_OnClick)
]
public event ImageClickEventHandler Click {
add {
Events.AddHandler(EventClick, value);
}
remove {
Events.RemoveHandler(EventClick, value);
}
}
///
/// Represents the method that will handle the
///
event EventHandler IButtonControl.Click {
add {
Events.AddHandler(EventButtonClick, value);
}
remove {
Events.RemoveHandler(EventButtonClick, value);
}
}
///
/// Represents the method that will handle the
///
[
WebCategory("Action"),
WebSysDescription(SR.ImageButton_OnCommand)
]
public event CommandEventHandler Command {
add {
Events.AddHandler(EventCommand, value);
}
remove {
Events.RemoveHandler(EventCommand, value);
}
}
///
/// Adds the attributes of an
///
protected override void AddAttributesToRender(HtmlTextWriter writer) {
Page page = Page;
// Make sure we are in a form tag with runat=server.
if (page != null) {
page.VerifyRenderingInServerForm(this);
}
writer.AddAttribute(HtmlTextWriterAttribute.Type,"image");
string uniqueID = UniqueID;
PostBackOptions options = GetPostBackOptions();
// Don't render Name on a button if __doPostBack is posting back to a different control
// because Page will register this control as requiring post back notification even though
// it's not the target of the postback. If the TargetControl isn't this control, this control's
// RaisePostBackEvent should never get called. See VSWhidbey 477095.
if (uniqueID != null && (options == null || options.TargetControl == this)) {
writer.AddAttribute(HtmlTextWriterAttribute.Name, uniqueID);
}
//
bool effectiveEnabled = IsEnabled;
string onClick = String.Empty;
if (effectiveEnabled) {
// Need to merge the onclick attribute with the OnClientClick
onClick = Util.EnsureEndWithSemiColon(OnClientClick);
if (HasAttributes) {
string userOnClick = Attributes["onclick"];
if (userOnClick != null) {
onClick += Util.EnsureEndWithSemiColon(userOnClick);
Attributes.Remove("onclick");
}
}
}
if (Enabled && !effectiveEnabled) {
// We need to do the cascade effect on the server, because the browser
// only renders as disabled, but doesn't disable the functionality.
writer.AddAttribute(HtmlTextWriterAttribute.Disabled, "disabled");
}
base.AddAttributesToRender(writer);
if (page != null && options != null) {
page.ClientScript.RegisterForEventValidation(options);
if (effectiveEnabled) {
string postBackEventReference = page.ClientScript.GetPostBackEventReference(options, false);
if (!String.IsNullOrEmpty(postBackEventReference)) {
onClick = Util.MergeScript(onClick, postBackEventReference);
}
}
}
if (onClick.Length > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Onclick, onClick);
if (EnableLegacyRendering) {
writer.AddAttribute("language", "javascript", false);
}
}
}
// Returns the client post back options.
protected virtual PostBackOptions GetPostBackOptions() {
PostBackOptions options = new PostBackOptions(this, String.Empty);
// The postback script ends up in onclick, not href,
// so we shouldn't force the javascript protocol like we do in LinkButton.
options.ClientSubmit = false;
if (!String.IsNullOrEmpty(PostBackUrl)) {
options.ActionUrl = HttpUtility.UrlPathEncode(ResolveClientUrl(PostBackUrl));
}
if (CausesValidation && Page != null && Page.GetValidators(ValidationGroup).Count > 0) {
options.PerformValidation = true;
options.ValidationGroup = ValidationGroup;
}
return options;
}
///
/// Processes posted data for the
///
bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) {
return LoadPostData(postDataKey, postCollection);
}
///
/// Processes posted data for the
///
protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) {
string name = UniqueID;
string postX = postCollection[name + ".x"];
string postY = postCollection[name + ".y"];
if (postX != null && postY != null && postX.Length > 0 && postY.Length > 0) {
x = Int32.Parse(postX, CultureInfo.InvariantCulture);
y = Int32.Parse(postY, CultureInfo.InvariantCulture);
if (Page != null) {
Page.RegisterRequiresRaiseEvent(this);
}
}
return false;
}
///
/// Raises the
///
protected virtual void OnClick(ImageClickEventArgs e) {
ImageClickEventHandler onClickHandler = (ImageClickEventHandler)Events[EventClick];
if (onClickHandler != null) onClickHandler(this,e);
EventHandler onButtonClickHandler = (EventHandler)Events[EventButtonClick];
if (onButtonClickHandler != null) onButtonClickHandler(this,(EventArgs)e);
}
///
/// Raises the
///
protected virtual void OnCommand(CommandEventArgs e) {
CommandEventHandler onCommandHandler = (CommandEventHandler)Events[EventCommand];
if (onCommandHandler != null)
onCommandHandler(this,e);
// Command events are bubbled up the control heirarchy
RaiseBubbleEvent(this, e);
}
///
///
/// Determine
/// if the image has been clicked prior to rendering on the client.
///
protected internal override void OnPreRender(EventArgs e) {
base.OnPreRender(e);
if (Page != null) {
Page.RegisterRequiresPostBack(this);
if (IsEnabled &&
((CausesValidation && Page.GetValidators(ValidationGroup).Count > 0) ||
!String.IsNullOrEmpty(PostBackUrl))) {
Page.RegisterWebFormsScript(); // VSWhidbey 489577
}
}
}
///
/// Raises events on post back for the
///
void IPostBackEventHandler.RaisePostBackEvent(string eventArgument) {
RaisePostBackEvent(eventArgument);
}
///
/// Raises events on post back for the
///
protected virtual void RaisePostBackEvent(string eventArgument) {
ValidateEvent(this.UniqueID, eventArgument);
#if SITECOUNTERS
SiteCounters siteCounters = Context.SiteCounters;
if (siteCounters.Enabled && CountClicks) {
String counterName = CounterName;
if (counterName.Length == 0) {
counterName = ID;
}
siteCounters.Write(CounterGroup, counterName, SiteCounters.ClickEventText,
null, TrackApplicationName, TrackPageUrl,
SiteCountersProvider, RowsPerDay);
}
#endif
if (CausesValidation) {
Page.Validate(ValidationGroup);
}
OnClick(new ImageClickEventArgs(x,y));
OnCommand(new CommandEventArgs(CommandName, CommandArgument));
}
///
/// Raised when posted data for a control has changed.
///
void IPostBackDataHandler.RaisePostDataChangedEvent() {
RaisePostDataChangedEvent();
}
///
/// Raised when posted data for a control has changed.
///
protected virtual void RaisePostDataChangedEvent() {
}
///
/// IButtonControl.Text implementation. IButtonControl is used internally for adaptive rendering, but
/// property is explicitly implemented because the developer should use AlternateText, as in V1.
///
string IButtonControl.Text {
get {
return Text;
}
set {
Text = value;
}
}
///
/// IButtonControl.Text implementation. IButtonControl is used internally for adaptive rendering, but
/// property is explicitly implemented because the developer should use AlternateText, as in V1.
///
protected virtual string Text {
get {
return AlternateText;
}
set {
AlternateText = value;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Web.UI.WebControls {
using System;
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Drawing.Design;
using System.Globalization;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.Util;
///
/// Creates a control that displays an image, responds to mouse clicks,
/// and records the mouse pointer position.
///
[
DefaultEvent("Click"),
Designer("System.Web.UI.Design.WebControls.PreviewControlDesigner, " + AssemblyRef.SystemDesign),
SupportsEventValidation,
]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class ImageButton : Image, IPostBackDataHandler, IPostBackEventHandler, IButtonControl {
private static readonly object EventClick = new object();
private static readonly object EventButtonClick = new object();
private static readonly object EventCommand = new object();
private int x = 0;
private int y = 0;
///
/// Initializes a new instance of the
///
public ImageButton() {
}
///
/// Gets or sets the command associated with the
///
[
DefaultValue(""),
WebCategory("Behavior"),
WebSysDescription(SR.WebControl_CommandName),
Themeable(false),
]
public string CommandName {
get {
string s = (string)ViewState["CommandName"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["CommandName"] = value;
}
}
///
/// Gets or sets an optional argument that is propogated in
/// the
///
[
Bindable(true),
DefaultValue(""),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.WebControl_CommandArgument),
]
public string CommandArgument {
get {
string s = (string)ViewState["CommandArgument"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["CommandArgument"] = value;
}
}
///
/// Gets or sets whether pressing the button causes page validation to fire. This defaults to True so that when
/// using validation controls, the validation state of all controls are updated when the button is clicked, both
/// on the client and the server. Setting this to False is useful when defining a cancel or reset button on a page
/// that has validators.
///
[
Themeable(false),
DefaultValue(true),
WebCategory("Behavior"),
WebSysDescription(SR.Button_CausesValidation)
]
public virtual bool CausesValidation {
get {
object b = ViewState["CausesValidation"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["CausesValidation"] = value;
}
}
#if SITECOUNTERS
[
DefaultValue("ImageButton"),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_CounterGroup),
]
public String CounterGroup {
get {
String s = (String)ViewState["CounterGroup"];
return((s == null) ? "ImageButton" : s);
}
set {
ViewState["CounterGroup"] = value;
}
}
[
DefaultValue(""),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_CounterName),
]
public String CounterName {
get {
String s = (String)ViewState["CounterName"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["CounterName"] = value;
}
}
[
DefaultValue(false),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_CountClicks),
]
public bool CountClicks {
get {
object b = ViewState["CountClicks"];
return((b == null) ? false : (bool)b);
}
set {
ViewState["CountClicks"] = value;
}
}
#endif
[
Browsable(true),
EditorBrowsableAttribute(EditorBrowsableState.Always),
Bindable(true),
WebCategory("Behavior"),
DefaultValue(true),
WebSysDescription(SR.WebControl_Enabled)
]
public override bool Enabled {
get {
return base.Enabled;
}
set {
base.Enabled = value;
}
}
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
EditorBrowsable(EditorBrowsableState.Never),
Themeable(false),
]
public override bool GenerateEmptyAlternateText {
get {
return base.GenerateEmptyAlternateText;
}
set {
throw new NotSupportedException(SR.GetString(
SR.Property_Set_Not_Supported, "GenerateEmptyAlternateText", this.GetType().ToString()));
}
}
///
/// The script that is executed on a client-side click.
///
[
DefaultValue(""),
WebCategory("Behavior"),
WebSysDescription(SR.Button_OnClientClick),
Themeable(false),
]
public virtual string OnClientClick {
get {
string s = (string)ViewState["OnClientClick"];
if (s == null) {
return String.Empty;
}
return s;
}
set {
ViewState["OnClientClick"] = value;
}
}
[
DefaultValue(""),
Editor("System.Web.UI.Design.UrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)),
Themeable(false),
UrlProperty("*.aspx"),
WebCategory("Behavior"),
WebSysDescription(SR.Button_PostBackUrl),
]
public virtual string PostBackUrl {
get {
string s = (string)ViewState["PostBackUrl"];
return s == null? String.Empty : s;
}
set {
ViewState["PostBackUrl"] = value;
}
}
#if SITECOUNTERS
[
DefaultValue(-1),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_RowsPerDay),
]
public int RowsPerDay {
get {
Object o = ViewState["RowsPerDay"];
return((o == null) ? -1 : (int) o);
}
set {
if (value == 0) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["RowsPerDay"] = value;
}
}
[
DefaultValue(""),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_SiteCountersProvider),
]
public String SiteCountersProvider {
get {
String s = (String) ViewState["SiteCountersProvider"];
return((s != null) ? s : String.Empty);
}
set {
ViewState["SiteCountersProvider"] = value;
}
}
#endif
///
/// Gets a value that represents the tag HtmlTextWriterTag.Input. This property is read-only.
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
protected override HtmlTextWriterTag TagKey {
get {
return HtmlTextWriterTag.Input;
}
}
#if SITECOUNTERS
[
DefaultValue(true),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_TrackApplicationName),
]
public bool TrackApplicationName {
get {
object b = ViewState["TrackApplicationName"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["TrackApplicationName"] = value;
}
}
[
DefaultValue(true),
Themeable(false),
WebCategory("SiteCounters"),
WebSysDescription(SR.Control_For_SiteCounters_TrackPageUrl),
]
public bool TrackPageUrl {
get {
object b = ViewState["TrackPageUrl"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["TrackPageUrl"] = value;
}
}
#endif
[
WebCategory("Behavior"),
Themeable(false),
DefaultValue(""),
WebSysDescription(SR.PostBackControl_ValidationGroup)
]
public virtual string ValidationGroup {
get {
string s = (string)ViewState["ValidationGroup"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["ValidationGroup"] = value;
}
}
///
/// Represents the method that will handle the
///
[
WebCategory("Action"),
WebSysDescription(SR.ImageButton_OnClick)
]
public event ImageClickEventHandler Click {
add {
Events.AddHandler(EventClick, value);
}
remove {
Events.RemoveHandler(EventClick, value);
}
}
///
/// Represents the method that will handle the
///
event EventHandler IButtonControl.Click {
add {
Events.AddHandler(EventButtonClick, value);
}
remove {
Events.RemoveHandler(EventButtonClick, value);
}
}
///
/// Represents the method that will handle the
///
[
WebCategory("Action"),
WebSysDescription(SR.ImageButton_OnCommand)
]
public event CommandEventHandler Command {
add {
Events.AddHandler(EventCommand, value);
}
remove {
Events.RemoveHandler(EventCommand, value);
}
}
///
/// Adds the attributes of an
///
protected override void AddAttributesToRender(HtmlTextWriter writer) {
Page page = Page;
// Make sure we are in a form tag with runat=server.
if (page != null) {
page.VerifyRenderingInServerForm(this);
}
writer.AddAttribute(HtmlTextWriterAttribute.Type,"image");
string uniqueID = UniqueID;
PostBackOptions options = GetPostBackOptions();
// Don't render Name on a button if __doPostBack is posting back to a different control
// because Page will register this control as requiring post back notification even though
// it's not the target of the postback. If the TargetControl isn't this control, this control's
// RaisePostBackEvent should never get called. See VSWhidbey 477095.
if (uniqueID != null && (options == null || options.TargetControl == this)) {
writer.AddAttribute(HtmlTextWriterAttribute.Name, uniqueID);
}
//
bool effectiveEnabled = IsEnabled;
string onClick = String.Empty;
if (effectiveEnabled) {
// Need to merge the onclick attribute with the OnClientClick
onClick = Util.EnsureEndWithSemiColon(OnClientClick);
if (HasAttributes) {
string userOnClick = Attributes["onclick"];
if (userOnClick != null) {
onClick += Util.EnsureEndWithSemiColon(userOnClick);
Attributes.Remove("onclick");
}
}
}
if (Enabled && !effectiveEnabled) {
// We need to do the cascade effect on the server, because the browser
// only renders as disabled, but doesn't disable the functionality.
writer.AddAttribute(HtmlTextWriterAttribute.Disabled, "disabled");
}
base.AddAttributesToRender(writer);
if (page != null && options != null) {
page.ClientScript.RegisterForEventValidation(options);
if (effectiveEnabled) {
string postBackEventReference = page.ClientScript.GetPostBackEventReference(options, false);
if (!String.IsNullOrEmpty(postBackEventReference)) {
onClick = Util.MergeScript(onClick, postBackEventReference);
}
}
}
if (onClick.Length > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Onclick, onClick);
if (EnableLegacyRendering) {
writer.AddAttribute("language", "javascript", false);
}
}
}
// Returns the client post back options.
protected virtual PostBackOptions GetPostBackOptions() {
PostBackOptions options = new PostBackOptions(this, String.Empty);
// The postback script ends up in onclick, not href,
// so we shouldn't force the javascript protocol like we do in LinkButton.
options.ClientSubmit = false;
if (!String.IsNullOrEmpty(PostBackUrl)) {
options.ActionUrl = HttpUtility.UrlPathEncode(ResolveClientUrl(PostBackUrl));
}
if (CausesValidation && Page != null && Page.GetValidators(ValidationGroup).Count > 0) {
options.PerformValidation = true;
options.ValidationGroup = ValidationGroup;
}
return options;
}
///
/// Processes posted data for the
///
bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) {
return LoadPostData(postDataKey, postCollection);
}
///
/// Processes posted data for the
///
protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) {
string name = UniqueID;
string postX = postCollection[name + ".x"];
string postY = postCollection[name + ".y"];
if (postX != null && postY != null && postX.Length > 0 && postY.Length > 0) {
x = Int32.Parse(postX, CultureInfo.InvariantCulture);
y = Int32.Parse(postY, CultureInfo.InvariantCulture);
if (Page != null) {
Page.RegisterRequiresRaiseEvent(this);
}
}
return false;
}
///
/// Raises the
///
protected virtual void OnClick(ImageClickEventArgs e) {
ImageClickEventHandler onClickHandler = (ImageClickEventHandler)Events[EventClick];
if (onClickHandler != null) onClickHandler(this,e);
EventHandler onButtonClickHandler = (EventHandler)Events[EventButtonClick];
if (onButtonClickHandler != null) onButtonClickHandler(this,(EventArgs)e);
}
///
/// Raises the
///
protected virtual void OnCommand(CommandEventArgs e) {
CommandEventHandler onCommandHandler = (CommandEventHandler)Events[EventCommand];
if (onCommandHandler != null)
onCommandHandler(this,e);
// Command events are bubbled up the control heirarchy
RaiseBubbleEvent(this, e);
}
///
///
/// Determine
/// if the image has been clicked prior to rendering on the client.
///
protected internal override void OnPreRender(EventArgs e) {
base.OnPreRender(e);
if (Page != null) {
Page.RegisterRequiresPostBack(this);
if (IsEnabled &&
((CausesValidation && Page.GetValidators(ValidationGroup).Count > 0) ||
!String.IsNullOrEmpty(PostBackUrl))) {
Page.RegisterWebFormsScript(); // VSWhidbey 489577
}
}
}
///
/// Raises events on post back for the
///
void IPostBackEventHandler.RaisePostBackEvent(string eventArgument) {
RaisePostBackEvent(eventArgument);
}
///
/// Raises events on post back for the
///
protected virtual void RaisePostBackEvent(string eventArgument) {
ValidateEvent(this.UniqueID, eventArgument);
#if SITECOUNTERS
SiteCounters siteCounters = Context.SiteCounters;
if (siteCounters.Enabled && CountClicks) {
String counterName = CounterName;
if (counterName.Length == 0) {
counterName = ID;
}
siteCounters.Write(CounterGroup, counterName, SiteCounters.ClickEventText,
null, TrackApplicationName, TrackPageUrl,
SiteCountersProvider, RowsPerDay);
}
#endif
if (CausesValidation) {
Page.Validate(ValidationGroup);
}
OnClick(new ImageClickEventArgs(x,y));
OnCommand(new CommandEventArgs(CommandName, CommandArgument));
}
///
/// Raised when posted data for a control has changed.
///
void IPostBackDataHandler.RaisePostDataChangedEvent() {
RaisePostDataChangedEvent();
}
///
/// Raised when posted data for a control has changed.
///
protected virtual void RaisePostDataChangedEvent() {
}
///
/// IButtonControl.Text implementation. IButtonControl is used internally for adaptive rendering, but
/// property is explicitly implemented because the developer should use AlternateText, as in V1.
///
string IButtonControl.Text {
get {
return Text;
}
set {
Text = value;
}
}
///
/// IButtonControl.Text implementation. IButtonControl is used internally for adaptive rendering, but
/// property is explicitly implemented because the developer should use AlternateText, as in V1.
///
protected virtual string Text {
get {
return AlternateText;
}
set {
AlternateText = value;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- XmlCodeExporter.cs
- WebPartDescription.cs
- PropertySourceInfo.cs
- MemoryPressure.cs
- RequestTimeoutManager.cs
- DesignerAutoFormatCollection.cs
- SqlNodeAnnotation.cs
- ResourceAssociationSet.cs
- SchemaElementLookUpTableEnumerator.cs
- PowerModeChangedEventArgs.cs
- DocumentCollection.cs
- HtmlTextBoxAdapter.cs
- RouteParameter.cs
- InteropAutomationProvider.cs
- mactripleDES.cs
- UnmanagedMemoryStreamWrapper.cs
- SqlProfileProvider.cs
- PageRequestManager.cs
- ToolStripRendererSwitcher.cs
- SimpleLine.cs
- TimeSpanOrInfiniteConverter.cs
- CellConstantDomain.cs
- SelectionChangedEventArgs.cs
- ServiceProviders.cs
- HTTPNotFoundHandler.cs
- TemplateControlParser.cs
- ReadOnlyHierarchicalDataSource.cs
- Int32Animation.cs
- ResourceBinder.cs
- IsolatedStorageFilePermission.cs
- AuthenticationService.cs
- AttributeSetAction.cs
- HyperlinkAutomationPeer.cs
- ToolboxItem.cs
- SerializationObjectManager.cs
- MD5CryptoServiceProvider.cs
- precedingquery.cs
- HandleExceptionArgs.cs
- FormClosingEvent.cs
- SafePointer.cs
- DataServiceQuery.cs
- UncommonField.cs
- ConnectionPointGlyph.cs
- PreviewPrintController.cs
- PrintDialog.cs
- TabletDevice.cs
- ForEachAction.cs
- DataSetMappper.cs
- GroupItemAutomationPeer.cs
- FontConverter.cs
- WorkflowInstanceExtensionProvider.cs
- StylusButton.cs
- RectAnimation.cs
- Quaternion.cs
- PartitionResolver.cs
- Subtree.cs
- ProtectedProviderSettings.cs
- CommonRemoteMemoryBlock.cs
- AstTree.cs
- GridViewCancelEditEventArgs.cs
- OracleDataReader.cs
- BypassElementCollection.cs
- UncommonField.cs
- IPipelineRuntime.cs
- XmlSerializerVersionAttribute.cs
- CaseStatementProjectedSlot.cs
- DuplicateWaitObjectException.cs
- Stream.cs
- WindowsAuthenticationEventArgs.cs
- RectangleHotSpot.cs
- RowUpdatedEventArgs.cs
- AsymmetricAlgorithm.cs
- AnchorEditor.cs
- NetSectionGroup.cs
- CalendarTable.cs
- TypeLoadException.cs
- StorageEntityTypeMapping.cs
- ProcessProtocolHandler.cs
- ConnectorRouter.cs
- CryptoConfig.cs
- BuildProviderUtils.cs
- AppDomainFactory.cs
- BrowserDefinitionCollection.cs
- SiteMapDataSourceView.cs
- XmlSchema.cs
- Point4DConverter.cs
- TypeConverterAttribute.cs
- StorageComplexTypeMapping.cs
- HtmlForm.cs
- StringTraceRecord.cs
- regiisutil.cs
- ThemeConfigurationDialog.cs
- TextDecorationLocationValidation.cs
- FileCodeGroup.cs
- IProvider.cs
- DoubleAnimation.cs
- GcHandle.cs
- PanelDesigner.cs
- _NegoState.cs
- UrlMappingsModule.cs