Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / xsp / System / Web / UI / WebControls / TextBox.cs / 1 / TextBox.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.Text;
using System.ComponentModel;
using System.Drawing.Design;
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls.Adapters;
using System.Collections;
using System.Collections.Specialized;
using System.Globalization;
using System.Security.Permissions;
///
/// Interacts with the parser to build a
///
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class TextBoxControlBuilder : ControlBuilder {
///
/// Specifies whether white space literals are allowed.
///
public override bool AllowWhitespaceLiterals() {
return false;
}
public override bool HtmlDecodeLiterals() {
// TextBox text gets rendered as an encoded attribute value or encoded content.
// At parse time text specified as an attribute gets decoded, and so text specified as a
// literal needs to go through the same process.
return true;
}
}
///
/// Constructs a text box and defines its properties.
///
[
ControlBuilderAttribute(typeof(TextBoxControlBuilder)),
ControlValueProperty("Text"),
DataBindingHandler("System.Web.UI.Design.TextDataBindingHandler, " + AssemblyRef.SystemDesign),
DefaultProperty("Text"),
ValidationProperty("Text"),
DefaultEvent("TextChanged"),
Designer("System.Web.UI.Design.WebControls.PreviewControlDesigner, " + AssemblyRef.SystemDesign),
ParseChildren(true, "Text"),
SupportsEventValidation,
]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class TextBox : WebControl, IPostBackDataHandler, IEditableTextControl {
private static readonly object EventTextChanged = new Object();
private const string _textBoxKeyHandlerCall = "if (WebForm_TextBoxKeyHandler(event) == false) return false;";
private const int DefaultMutliLineRows = 2;
private const int DefaultMutliLineColumns = 20;
///
/// Initializes a new instance of the
///
public TextBox() : base(HtmlTextWriterTag.Input) {
}
[
DefaultValue(AutoCompleteType.None),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_AutoCompleteType)
]
public virtual AutoCompleteType AutoCompleteType {
get {
object obj = ViewState["AutoCompleteType"];
return (obj == null) ? AutoCompleteType.None : (AutoCompleteType) obj;
}
set {
if (value < AutoCompleteType.None || value > AutoCompleteType.Search) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["AutoCompleteType"] = value;
}
}
///
/// Gets or sets a value indicating whether an automatic
/// postback to the server will occur whenever the user changes the
/// content of the text box.
///
[
DefaultValue(false),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_AutoPostBack),
]
public virtual bool AutoPostBack {
get {
object b = ViewState["AutoPostBack"];
return((b == null) ? false : (bool)b);
}
set {
ViewState["AutoPostBack"] = value;
}
}
[
DefaultValue(false),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.AutoPostBackControl_CausesValidation)
]
public virtual bool CausesValidation {
get {
object b = ViewState["CausesValidation"];
return((b == null) ? false : (bool)b);
}
set {
ViewState["CausesValidation"] = value;
}
}
///
/// Gets or sets the display
/// width of the text box in characters.
///
[
WebCategory("Appearance"),
DefaultValue(0),
WebSysDescription(SR.TextBox_Columns)
]
public virtual int Columns {
get {
object o = ViewState["Columns"];
return((o == null) ? 0 : (int)o);
}
set {
if (value < 0) {
throw new ArgumentOutOfRangeException("Columns", SR.GetString(SR.TextBox_InvalidColumns));
}
ViewState["Columns"] = value;
}
}
///
/// Gets or sets the maximum number of characters allowed in the text box.
///
[
DefaultValue(0),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_MaxLength),
]
public virtual int MaxLength {
get {
object o = ViewState["MaxLength"];
return((o == null) ? 0 : (int)o);
}
set {
if (value < 0) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["MaxLength"] = value;
}
}
///
///
/// Gets or sets the behavior mode of the text box.
///
[
DefaultValue(TextBoxMode.SingleLine),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_TextMode)
]
public virtual TextBoxMode TextMode {
get {
object mode = ViewState["Mode"];
return((mode == null) ? TextBoxMode.SingleLine : (TextBoxMode)mode);
}
set {
if (value < TextBoxMode.SingleLine || value > TextBoxMode.Password) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["Mode"] = value;
}
}
///
/// Whether the textbox is in read-only mode.
///
[
Bindable(true),
DefaultValue(false),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_ReadOnly)
]
public virtual bool ReadOnly {
get {
object o = ViewState["ReadOnly"];
return((o == null) ? false : (bool)o);
}
set {
ViewState["ReadOnly"] = value;
}
}
///
/// Gets or sets the display height of a multiline text box.
///
[
DefaultValue(0),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_Rows)
]
public virtual int Rows {
get {
object o = ViewState["Rows"];
return((o == null) ? 0 : (int)o);
}
set {
if (value < 0) {
throw new ArgumentOutOfRangeException("Rows", SR.GetString(SR.TextBox_InvalidRows));
}
ViewState["Rows"] = value;
}
}
///
/// Determines whether the Text must be stored in view state, to
/// optimize the size of the saved state.
///
private bool SaveTextViewState {
get {
//
// Must be saved when
// 1. There is a registered event handler for SelectedIndexChanged
// 2. Control is not enabled or visible, because the browser's post data will not include this control
// 3. The instance is a derived instance, which might be overriding the OnTextChanged method
if (TextMode == TextBoxMode.Password) {
return false;
}
#if SHIPPINGADAPTERS
if(_adapter != null) {
TextBoxAdapter adapter = _adapter as TextBoxAdapter;
if (adapter != null && adapter.AlwaysSaveNonPasswordViewState) {
return true;
}
}
#endif
if ((Events[EventTextChanged] != null) ||
(IsEnabled == false) ||
(Visible == false) ||
(ReadOnly) ||
(this.GetType() != typeof(TextBox))) {
return true;
}
return false;
}
}
///
/// A protected property. Gets the HTML tag
/// for the text box control.
///
protected override HtmlTextWriterTag TagKey {
get {
if (TextMode == TextBoxMode.MultiLine)
return HtmlTextWriterTag.Textarea;
else
return HtmlTextWriterTag.Input;
}
}
///
/// Gets
/// or sets the text content of the text box.
///
[
Localizable(true),
Bindable(true, BindingDirection.TwoWay),
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.TextBox_Text),
PersistenceMode(PersistenceMode.EncodedInnerDefaultProperty),
Editor("System.ComponentModel.Design.MultilineStringEditor," + AssemblyRef.SystemDesign, typeof(UITypeEditor))
]
public virtual string Text {
get {
string s = (string)ViewState["Text"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["Text"] = value;
}
}
[
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;
}
}
///
/// Gets or sets a value indicating whether the
/// text content wraps within the text box.
///
[
WebCategory("Layout"),
DefaultValue(true),
WebSysDescription(SR.TextBox_Wrap)
]
public virtual bool Wrap {
get {
object b = ViewState["Wrap"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["Wrap"] = value;
}
}
///
/// Occurs when the content of the text box is
/// changed upon server postback.
///
[
WebCategory("Action"),
WebSysDescription(SR.TextBox_OnTextChanged)
]
public event EventHandler TextChanged {
add {
Events.AddHandler(EventTextChanged, value);
}
remove {
Events.RemoveHandler(EventTextChanged, value);
}
}
///
///
protected override void AddAttributesToRender(HtmlTextWriter writer) {
// Make sure we are in a form tag with runat=server.
Page page = Page;
if (page != null) {
page.VerifyRenderingInServerForm(this);
}
string uniqueID = UniqueID;
if (uniqueID != null) {
writer.AddAttribute(HtmlTextWriterAttribute.Name, uniqueID);
}
TextBoxMode mode = TextMode;
if (mode == TextBoxMode.MultiLine) {
// MultiLine renders as textarea
int rows = Rows;
int columns = Columns;
bool adapterRenderZeroRowCol = false;
#if SHIPPINGADAPTERS
TextBoxAdapter adapter = _adapter as TextBoxAdapter;
if (adapter != null) {
if (!adapter.SuppressTextareaZeroRowColValue) {
adapterRenderZeroRowCol = true;
}
}
else {
#endif
if (!EnableLegacyRendering) {
// VSWhidbey 497755
if (rows == 0) {
rows = DefaultMutliLineRows;
}
if (columns == 0) {
columns = DefaultMutliLineColumns;
}
}
#if SHIPPINGADAPTERS
}
#endif
if (rows > 0 || adapterRenderZeroRowCol) {
writer.AddAttribute(HtmlTextWriterAttribute.Rows, rows.ToString(NumberFormatInfo.InvariantInfo));
}
if (columns > 0 || adapterRenderZeroRowCol) {
writer.AddAttribute(HtmlTextWriterAttribute.Cols, columns.ToString(NumberFormatInfo.InvariantInfo));
}
if (!Wrap) {
writer.AddAttribute(HtmlTextWriterAttribute.Wrap,"off");
}
}
else {
// SingleLine renders as input
if (mode == TextBoxMode.SingleLine) {
writer.AddAttribute(HtmlTextWriterAttribute.Type,"text");
// Renders the vcard_name attribute so that client browsers can support autocomplete
if (AutoCompleteType != AutoCompleteType.None &&
Context != null && Context.Request.Browser["supportsVCard"] == "true") {
if (AutoCompleteType == AutoCompleteType.Disabled) {
writer.AddAttribute(HtmlTextWriterAttribute.AutoComplete, "off");
}
else if (AutoCompleteType == AutoCompleteType.Search) {
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "search");
}
else if (AutoCompleteType == AutoCompleteType.Home----Region) {
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "Home----");
}
else if (AutoCompleteType == AutoCompleteType.Business----Region) {
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "Business----");
}
else {
string name = Enum.Format(typeof(AutoCompleteType), AutoCompleteType, "G");
// Business and Home properties need to be prefixed with "."
if (name.StartsWith("Business", StringComparison.Ordinal)) {
name = name.Insert(8, ".");
}
else if (name.StartsWith("Home", StringComparison.Ordinal)) {
name = name.Insert(4, ".");
}
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "vCard." + name);
}
}
// only render value if we're not a password
string s = Text;
if (s.Length > 0)
writer.AddAttribute(HtmlTextWriterAttribute.Value, s);
}
else if (mode == TextBoxMode.Password) {
writer.AddAttribute(HtmlTextWriterAttribute.Type, "password");
}
int n = MaxLength;
if (n > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Maxlength, n.ToString(NumberFormatInfo.InvariantInfo));
}
n = Columns;
if (n > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Size, n.ToString(NumberFormatInfo.InvariantInfo));
}
}
if (ReadOnly) {
writer.AddAttribute(HtmlTextWriterAttribute.ReadOnly, "readonly");
}
if (AutoPostBack && (page != null) && page.ClientSupportsJavaScript) {
string onChange = null;
if (HasAttributes) {
onChange = Attributes["onchange"];
if (onChange != null) {
onChange = Util.EnsureEndWithSemiColon(onChange);
Attributes.Remove("onchange");
}
}
PostBackOptions options = new PostBackOptions(this, String.Empty);
// ASURT 98368
// Need to merge the autopostback script with the user script
if (CausesValidation) {
options.PerformValidation = true;
options.ValidationGroup = ValidationGroup;
}
if (page.Form != null) {
options.AutoPostBack = true;
}
onChange = Util.MergeScript(onChange, page.ClientScript.GetPostBackEventReference(options, true));
writer.AddAttribute(HtmlTextWriterAttribute.Onchange, onChange);
// VSWhidbey 482068: Enter key should be preserved in mult-line
// textbox so the textBoxKeyHandlerCall should not be hooked up
if (mode != TextBoxMode.MultiLine) {
string onKeyPress = _textBoxKeyHandlerCall;
if (HasAttributes) {
string userOnKeyPress = Attributes["onkeypress"];
if (userOnKeyPress != null) {
onKeyPress += userOnKeyPress;
Attributes.Remove("onkeypress");
}
}
writer.AddAttribute("onkeypress", onKeyPress);
}
if (EnableLegacyRendering) {
writer.AddAttribute("language", "javascript", false);
}
}
else if (page != null) {
page.ClientScript.RegisterForEventValidation(this.UniqueID, String.Empty);
}
if (Enabled && !IsEnabled) {
// 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);
}
///
/// Overridden to only allow literal controls to be added as Text property.
///
protected override void AddParsedSubObject(object obj) {
if (obj is LiteralControl) {
Text = ((LiteralControl)obj).Text;
}
else {
throw new HttpException(SR.GetString(SR.Cannot_Have_Children_Of_Type, "TextBox", obj.GetType().Name.ToString(CultureInfo.InvariantCulture)));
}
}
///
/// Loads the posted text box content if it is different
/// from the last posting.
///
bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) {
return LoadPostData(postDataKey, postCollection);
}
///
/// Loads the posted text box content if it is different
/// from the last posting.
///
protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) {
ValidateEvent(postDataKey);
string current = Text;
string postData = postCollection[postDataKey];
// VSWhidbey 442850: Everett had current.Equals(postData), and it is
// equivalent to the option StringComparison.Ordinal in Whidbey
if (!ReadOnly && !current.Equals(postData, StringComparison.Ordinal)) {
Text = postData;
return true;
}
return false;
}
///
/// Raises the
///
protected virtual void OnTextChanged(EventArgs e) {
EventHandler onChangeHandler = (EventHandler)Events[EventTextChanged];
if (onChangeHandler != null) onChangeHandler(this,e);
}
///
/// Invokes the
///
void IPostBackDataHandler.RaisePostDataChangedEvent() {
RaisePostDataChangedEvent();
}
///
/// Invokes the
///
protected virtual void RaisePostDataChangedEvent() {
if (AutoPostBack && !Page.IsPostBackEventControlRegistered) {
// VSWhidbey 204824
Page.AutoPostBackControl = this;
if (CausesValidation) {
Page.Validate(ValidationGroup);
}
}
OnTextChanged(EventArgs.Empty);
}
///
///
protected internal override void Render(HtmlTextWriter writer) {
RenderBeginTag(writer);
if (TextMode == TextBoxMode.MultiLine)
HttpUtility.HtmlEncode(Text, writer);
RenderEndTag(writer);
}
protected override object SaveViewState() {
if (SaveTextViewState == false) {
ViewState.SetItemDirty("Text", false);
}
return base.SaveViewState();
}
}
}
// 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.Text;
using System.ComponentModel;
using System.Drawing.Design;
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls.Adapters;
using System.Collections;
using System.Collections.Specialized;
using System.Globalization;
using System.Security.Permissions;
///
/// Interacts with the parser to build a
///
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class TextBoxControlBuilder : ControlBuilder {
///
/// Specifies whether white space literals are allowed.
///
public override bool AllowWhitespaceLiterals() {
return false;
}
public override bool HtmlDecodeLiterals() {
// TextBox text gets rendered as an encoded attribute value or encoded content.
// At parse time text specified as an attribute gets decoded, and so text specified as a
// literal needs to go through the same process.
return true;
}
}
///
/// Constructs a text box and defines its properties.
///
[
ControlBuilderAttribute(typeof(TextBoxControlBuilder)),
ControlValueProperty("Text"),
DataBindingHandler("System.Web.UI.Design.TextDataBindingHandler, " + AssemblyRef.SystemDesign),
DefaultProperty("Text"),
ValidationProperty("Text"),
DefaultEvent("TextChanged"),
Designer("System.Web.UI.Design.WebControls.PreviewControlDesigner, " + AssemblyRef.SystemDesign),
ParseChildren(true, "Text"),
SupportsEventValidation,
]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class TextBox : WebControl, IPostBackDataHandler, IEditableTextControl {
private static readonly object EventTextChanged = new Object();
private const string _textBoxKeyHandlerCall = "if (WebForm_TextBoxKeyHandler(event) == false) return false;";
private const int DefaultMutliLineRows = 2;
private const int DefaultMutliLineColumns = 20;
///
/// Initializes a new instance of the
///
public TextBox() : base(HtmlTextWriterTag.Input) {
}
[
DefaultValue(AutoCompleteType.None),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_AutoCompleteType)
]
public virtual AutoCompleteType AutoCompleteType {
get {
object obj = ViewState["AutoCompleteType"];
return (obj == null) ? AutoCompleteType.None : (AutoCompleteType) obj;
}
set {
if (value < AutoCompleteType.None || value > AutoCompleteType.Search) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["AutoCompleteType"] = value;
}
}
///
/// Gets or sets a value indicating whether an automatic
/// postback to the server will occur whenever the user changes the
/// content of the text box.
///
[
DefaultValue(false),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_AutoPostBack),
]
public virtual bool AutoPostBack {
get {
object b = ViewState["AutoPostBack"];
return((b == null) ? false : (bool)b);
}
set {
ViewState["AutoPostBack"] = value;
}
}
[
DefaultValue(false),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.AutoPostBackControl_CausesValidation)
]
public virtual bool CausesValidation {
get {
object b = ViewState["CausesValidation"];
return((b == null) ? false : (bool)b);
}
set {
ViewState["CausesValidation"] = value;
}
}
///
/// Gets or sets the display
/// width of the text box in characters.
///
[
WebCategory("Appearance"),
DefaultValue(0),
WebSysDescription(SR.TextBox_Columns)
]
public virtual int Columns {
get {
object o = ViewState["Columns"];
return((o == null) ? 0 : (int)o);
}
set {
if (value < 0) {
throw new ArgumentOutOfRangeException("Columns", SR.GetString(SR.TextBox_InvalidColumns));
}
ViewState["Columns"] = value;
}
}
///
/// Gets or sets the maximum number of characters allowed in the text box.
///
[
DefaultValue(0),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_MaxLength),
]
public virtual int MaxLength {
get {
object o = ViewState["MaxLength"];
return((o == null) ? 0 : (int)o);
}
set {
if (value < 0) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["MaxLength"] = value;
}
}
///
///
/// Gets or sets the behavior mode of the text box.
///
[
DefaultValue(TextBoxMode.SingleLine),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_TextMode)
]
public virtual TextBoxMode TextMode {
get {
object mode = ViewState["Mode"];
return((mode == null) ? TextBoxMode.SingleLine : (TextBoxMode)mode);
}
set {
if (value < TextBoxMode.SingleLine || value > TextBoxMode.Password) {
throw new ArgumentOutOfRangeException("value");
}
ViewState["Mode"] = value;
}
}
///
/// Whether the textbox is in read-only mode.
///
[
Bindable(true),
DefaultValue(false),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_ReadOnly)
]
public virtual bool ReadOnly {
get {
object o = ViewState["ReadOnly"];
return((o == null) ? false : (bool)o);
}
set {
ViewState["ReadOnly"] = value;
}
}
///
/// Gets or sets the display height of a multiline text box.
///
[
DefaultValue(0),
Themeable(false),
WebCategory("Behavior"),
WebSysDescription(SR.TextBox_Rows)
]
public virtual int Rows {
get {
object o = ViewState["Rows"];
return((o == null) ? 0 : (int)o);
}
set {
if (value < 0) {
throw new ArgumentOutOfRangeException("Rows", SR.GetString(SR.TextBox_InvalidRows));
}
ViewState["Rows"] = value;
}
}
///
/// Determines whether the Text must be stored in view state, to
/// optimize the size of the saved state.
///
private bool SaveTextViewState {
get {
//
// Must be saved when
// 1. There is a registered event handler for SelectedIndexChanged
// 2. Control is not enabled or visible, because the browser's post data will not include this control
// 3. The instance is a derived instance, which might be overriding the OnTextChanged method
if (TextMode == TextBoxMode.Password) {
return false;
}
#if SHIPPINGADAPTERS
if(_adapter != null) {
TextBoxAdapter adapter = _adapter as TextBoxAdapter;
if (adapter != null && adapter.AlwaysSaveNonPasswordViewState) {
return true;
}
}
#endif
if ((Events[EventTextChanged] != null) ||
(IsEnabled == false) ||
(Visible == false) ||
(ReadOnly) ||
(this.GetType() != typeof(TextBox))) {
return true;
}
return false;
}
}
///
/// A protected property. Gets the HTML tag
/// for the text box control.
///
protected override HtmlTextWriterTag TagKey {
get {
if (TextMode == TextBoxMode.MultiLine)
return HtmlTextWriterTag.Textarea;
else
return HtmlTextWriterTag.Input;
}
}
///
/// Gets
/// or sets the text content of the text box.
///
[
Localizable(true),
Bindable(true, BindingDirection.TwoWay),
WebCategory("Appearance"),
DefaultValue(""),
WebSysDescription(SR.TextBox_Text),
PersistenceMode(PersistenceMode.EncodedInnerDefaultProperty),
Editor("System.ComponentModel.Design.MultilineStringEditor," + AssemblyRef.SystemDesign, typeof(UITypeEditor))
]
public virtual string Text {
get {
string s = (string)ViewState["Text"];
return((s == null) ? String.Empty : s);
}
set {
ViewState["Text"] = value;
}
}
[
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;
}
}
///
/// Gets or sets a value indicating whether the
/// text content wraps within the text box.
///
[
WebCategory("Layout"),
DefaultValue(true),
WebSysDescription(SR.TextBox_Wrap)
]
public virtual bool Wrap {
get {
object b = ViewState["Wrap"];
return((b == null) ? true : (bool)b);
}
set {
ViewState["Wrap"] = value;
}
}
///
/// Occurs when the content of the text box is
/// changed upon server postback.
///
[
WebCategory("Action"),
WebSysDescription(SR.TextBox_OnTextChanged)
]
public event EventHandler TextChanged {
add {
Events.AddHandler(EventTextChanged, value);
}
remove {
Events.RemoveHandler(EventTextChanged, value);
}
}
///
///
protected override void AddAttributesToRender(HtmlTextWriter writer) {
// Make sure we are in a form tag with runat=server.
Page page = Page;
if (page != null) {
page.VerifyRenderingInServerForm(this);
}
string uniqueID = UniqueID;
if (uniqueID != null) {
writer.AddAttribute(HtmlTextWriterAttribute.Name, uniqueID);
}
TextBoxMode mode = TextMode;
if (mode == TextBoxMode.MultiLine) {
// MultiLine renders as textarea
int rows = Rows;
int columns = Columns;
bool adapterRenderZeroRowCol = false;
#if SHIPPINGADAPTERS
TextBoxAdapter adapter = _adapter as TextBoxAdapter;
if (adapter != null) {
if (!adapter.SuppressTextareaZeroRowColValue) {
adapterRenderZeroRowCol = true;
}
}
else {
#endif
if (!EnableLegacyRendering) {
// VSWhidbey 497755
if (rows == 0) {
rows = DefaultMutliLineRows;
}
if (columns == 0) {
columns = DefaultMutliLineColumns;
}
}
#if SHIPPINGADAPTERS
}
#endif
if (rows > 0 || adapterRenderZeroRowCol) {
writer.AddAttribute(HtmlTextWriterAttribute.Rows, rows.ToString(NumberFormatInfo.InvariantInfo));
}
if (columns > 0 || adapterRenderZeroRowCol) {
writer.AddAttribute(HtmlTextWriterAttribute.Cols, columns.ToString(NumberFormatInfo.InvariantInfo));
}
if (!Wrap) {
writer.AddAttribute(HtmlTextWriterAttribute.Wrap,"off");
}
}
else {
// SingleLine renders as input
if (mode == TextBoxMode.SingleLine) {
writer.AddAttribute(HtmlTextWriterAttribute.Type,"text");
// Renders the vcard_name attribute so that client browsers can support autocomplete
if (AutoCompleteType != AutoCompleteType.None &&
Context != null && Context.Request.Browser["supportsVCard"] == "true") {
if (AutoCompleteType == AutoCompleteType.Disabled) {
writer.AddAttribute(HtmlTextWriterAttribute.AutoComplete, "off");
}
else if (AutoCompleteType == AutoCompleteType.Search) {
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "search");
}
else if (AutoCompleteType == AutoCompleteType.Home----Region) {
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "Home----");
}
else if (AutoCompleteType == AutoCompleteType.Business----Region) {
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "Business----");
}
else {
string name = Enum.Format(typeof(AutoCompleteType), AutoCompleteType, "G");
// Business and Home properties need to be prefixed with "."
if (name.StartsWith("Business", StringComparison.Ordinal)) {
name = name.Insert(8, ".");
}
else if (name.StartsWith("Home", StringComparison.Ordinal)) {
name = name.Insert(4, ".");
}
writer.AddAttribute(HtmlTextWriterAttribute.VCardName, "vCard." + name);
}
}
// only render value if we're not a password
string s = Text;
if (s.Length > 0)
writer.AddAttribute(HtmlTextWriterAttribute.Value, s);
}
else if (mode == TextBoxMode.Password) {
writer.AddAttribute(HtmlTextWriterAttribute.Type, "password");
}
int n = MaxLength;
if (n > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Maxlength, n.ToString(NumberFormatInfo.InvariantInfo));
}
n = Columns;
if (n > 0) {
writer.AddAttribute(HtmlTextWriterAttribute.Size, n.ToString(NumberFormatInfo.InvariantInfo));
}
}
if (ReadOnly) {
writer.AddAttribute(HtmlTextWriterAttribute.ReadOnly, "readonly");
}
if (AutoPostBack && (page != null) && page.ClientSupportsJavaScript) {
string onChange = null;
if (HasAttributes) {
onChange = Attributes["onchange"];
if (onChange != null) {
onChange = Util.EnsureEndWithSemiColon(onChange);
Attributes.Remove("onchange");
}
}
PostBackOptions options = new PostBackOptions(this, String.Empty);
// ASURT 98368
// Need to merge the autopostback script with the user script
if (CausesValidation) {
options.PerformValidation = true;
options.ValidationGroup = ValidationGroup;
}
if (page.Form != null) {
options.AutoPostBack = true;
}
onChange = Util.MergeScript(onChange, page.ClientScript.GetPostBackEventReference(options, true));
writer.AddAttribute(HtmlTextWriterAttribute.Onchange, onChange);
// VSWhidbey 482068: Enter key should be preserved in mult-line
// textbox so the textBoxKeyHandlerCall should not be hooked up
if (mode != TextBoxMode.MultiLine) {
string onKeyPress = _textBoxKeyHandlerCall;
if (HasAttributes) {
string userOnKeyPress = Attributes["onkeypress"];
if (userOnKeyPress != null) {
onKeyPress += userOnKeyPress;
Attributes.Remove("onkeypress");
}
}
writer.AddAttribute("onkeypress", onKeyPress);
}
if (EnableLegacyRendering) {
writer.AddAttribute("language", "javascript", false);
}
}
else if (page != null) {
page.ClientScript.RegisterForEventValidation(this.UniqueID, String.Empty);
}
if (Enabled && !IsEnabled) {
// 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);
}
///
/// Overridden to only allow literal controls to be added as Text property.
///
protected override void AddParsedSubObject(object obj) {
if (obj is LiteralControl) {
Text = ((LiteralControl)obj).Text;
}
else {
throw new HttpException(SR.GetString(SR.Cannot_Have_Children_Of_Type, "TextBox", obj.GetType().Name.ToString(CultureInfo.InvariantCulture)));
}
}
///
/// Loads the posted text box content if it is different
/// from the last posting.
///
bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) {
return LoadPostData(postDataKey, postCollection);
}
///
/// Loads the posted text box content if it is different
/// from the last posting.
///
protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) {
ValidateEvent(postDataKey);
string current = Text;
string postData = postCollection[postDataKey];
// VSWhidbey 442850: Everett had current.Equals(postData), and it is
// equivalent to the option StringComparison.Ordinal in Whidbey
if (!ReadOnly && !current.Equals(postData, StringComparison.Ordinal)) {
Text = postData;
return true;
}
return false;
}
///
/// Raises the
///
protected virtual void OnTextChanged(EventArgs e) {
EventHandler onChangeHandler = (EventHandler)Events[EventTextChanged];
if (onChangeHandler != null) onChangeHandler(this,e);
}
///
/// Invokes the
///
void IPostBackDataHandler.RaisePostDataChangedEvent() {
RaisePostDataChangedEvent();
}
///
/// Invokes the
///
protected virtual void RaisePostDataChangedEvent() {
if (AutoPostBack && !Page.IsPostBackEventControlRegistered) {
// VSWhidbey 204824
Page.AutoPostBackControl = this;
if (CausesValidation) {
Page.Validate(ValidationGroup);
}
}
OnTextChanged(EventArgs.Empty);
}
///
///
protected internal override void Render(HtmlTextWriter writer) {
RenderBeginTag(writer);
if (TextMode == TextBoxMode.MultiLine)
HttpUtility.HtmlEncode(Text, writer);
RenderEndTag(writer);
}
protected override object SaveViewState() {
if (SaveTextViewState == false) {
ViewState.SetItemDirty("Text", false);
}
return base.SaveViewState();
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- TemplatedMailWebEventProvider.cs
- HwndHostAutomationPeer.cs
- RangeValuePattern.cs
- UniqueConstraint.cs
- DataGridViewCellStyleContentChangedEventArgs.cs
- ZipIOCentralDirectoryDigitalSignature.cs
- EqualityComparer.cs
- FileVersion.cs
- DesignerForm.cs
- CompensationTokenData.cs
- ProxyWebPartManager.cs
- MailWebEventProvider.cs
- XmlSchemaExporter.cs
- GetIndexBinder.cs
- AnnotationComponentManager.cs
- TabRenderer.cs
- _IPv4Address.cs
- AttributeAction.cs
- HandleCollector.cs
- PixelFormat.cs
- HttpCacheParams.cs
- ToolStripDesignerAvailabilityAttribute.cs
- SchemaManager.cs
- _AutoWebProxyScriptWrapper.cs
- ResourceReader.cs
- ListCollectionView.cs
- ConfigurationSchemaErrors.cs
- AutoResetEvent.cs
- TcpConnectionPool.cs
- errorpatternmatcher.cs
- FrameworkReadOnlyPropertyMetadata.cs
- HitTestDrawingContextWalker.cs
- MailAddressCollection.cs
- ListBindingConverter.cs
- InputProcessorProfiles.cs
- Size3DValueSerializer.cs
- ChildTable.cs
- GroupStyle.cs
- BodyGlyph.cs
- PointLightBase.cs
- AuthorizationRule.cs
- ThemeDirectoryCompiler.cs
- TextLineResult.cs
- NeutralResourcesLanguageAttribute.cs
- TypeLibraryHelper.cs
- DetailsViewDeletedEventArgs.cs
- SchemaImporterExtensionsSection.cs
- XamlToRtfWriter.cs
- SafeProcessHandle.cs
- JavaScriptString.cs
- UnitySerializationHolder.cs
- validationstate.cs
- BookmarkInfo.cs
- autovalidator.cs
- _ProxyChain.cs
- updateconfighost.cs
- FontDifferentiator.cs
- LinearKeyFrames.cs
- XmlWrappingReader.cs
- externdll.cs
- TypeToken.cs
- Int16AnimationBase.cs
- NeutralResourcesLanguageAttribute.cs
- Compiler.cs
- ResourceAssociationSet.cs
- MenuEventArgs.cs
- __TransparentProxy.cs
- XmlSchemaAnnotation.cs
- PngBitmapEncoder.cs
- SolidBrush.cs
- embossbitmapeffect.cs
- XmlSerializerSection.cs
- CultureSpecificStringDictionary.cs
- ColorBuilder.cs
- HyperLinkField.cs
- RegexFCD.cs
- TableCell.cs
- ColumnCollection.cs
- CodeExpressionCollection.cs
- UIElementCollection.cs
- NumericExpr.cs
- EndOfStreamException.cs
- ShapingEngine.cs
- DbModificationCommandTree.cs
- HttpFileCollection.cs
- PrintingPermissionAttribute.cs
- ObjectDataSourceStatusEventArgs.cs
- ObjectFactoryCodeDomTreeGenerator.cs
- SafeCryptoKeyHandle.cs
- ClientUrlResolverWrapper.cs
- CopyOnWriteList.cs
- AppSettings.cs
- Substitution.cs
- DoWorkEventArgs.cs
- ToolStripMenuItemDesigner.cs
- SqlUDTStorage.cs
- ActivityCompletionCallbackWrapper.cs
- RealizationDrawingContextWalker.cs
- GlyphTypeface.cs
- NavigationService.cs