C# XhtmlMobileTextWriter类代码示例

 /// <include file='doc\XhtmlBasicTextViewAdapter.uex' path='docs/doc[@for="XhtmlTextViewAdapter.RenderElement"]/*' />
 public void RenderElement(XhtmlMobileTextWriter writer, int index, int beginSubstring, int endSubstring) {
     TextViewElement element = Control.GetElement(index);
     writer.WritePendingBreak();
     if (endSubstring == -1) {
         endSubstring = element.Text.Length;
     }
     String text = element.Text;
     if (beginSubstring > 0 || endSubstring < text.Length) {
         text = text.Substring(beginSubstring, endSubstring - beginSubstring);
     }
     BooleanOption prevBold = Style.Font.Bold;
     BooleanOption prevItalic = Style.Font.Italic;
     if (element.IsBold) {
         Style.Font.Bold = BooleanOption.True;
     }
     if (element.IsItalic) {
         Style.Font.Italic = BooleanOption.True;
     }
     ConditionalEnterStyle(writer, Style);           
     if (element.Url != null) {
         RenderBeginLink(writer, element.Url);
         writer.WriteEncodedText(text);
         RenderEndLink(writer);
     }
     else {
         writer.WriteEncodedText(text);
     }
     if (element.BreakAfter) {
         writer.SetPendingBreak();
     }
     ConditionalExitStyle(writer, Style);
     Style.Font.Bold = prevBold;
     Style.Font.Italic = prevItalic;
 }

        /// <include file='doc\XhtmlBasicTextViewAdapter.uex' path='docs/doc[@for="XhtmlTextViewAdapter.Render"]/*' />
        public override void Render(XhtmlMobileTextWriter writer) {
            int beginElement = Control.FirstVisibleElementIndex;
            int beginOffset = Control.FirstVisibleElementOffset;
            int endElement = Control.LastVisibleElementIndex;
            int endOffset = Control.LastVisibleElementOffset;

            // ConditionalClearCachedEndTag() is for a device special case.
            ConditionalClearCachedEndTag(writer, Control.Text);
            ConditionalEnterStyle(writer, Style);
            ConditionalRenderOpeningSpanElement(writer);
            writer.WritePendingBreak();
            for(int i = beginElement; i <= endElement; i++) {
                int begin = (i == beginElement) ? beginOffset : 0;
                int end;
                if (i == endElement) {
                    if (endOffset <= begin) {
                        break;
                    }
                    end = endOffset;
                }
                else {
                    end = -1;
                }
                RenderElement(writer, i, begin, end);
            }
            // ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
            // ConditionalExitStyle may render a block element and clear the pending break.
            ConditionalSetPendingBreak(writer);            
            ConditionalRenderClosingSpanElement(writer);
            ConditionalExitStyle(writer, Style);
        }

 // For convenience in extensibility -not used internally.  The overload with style and cssClass args is
 // to be preferred.  See ASURT 144034.
 /// <include file='doc\XhtmlBasicControlAdapter.uex' path='docs/doc[@for="XhtmlControlAdapter.RenderPostBackEventAsAnchor1"]/*' />
 protected virtual void RenderPostBackEventAsAnchor (
     XhtmlMobileTextWriter writer,
     String argument,
     String linkText, 
     String accessKey) {
     RenderPostBackEventAsAnchor(writer, argument, linkText, accessKey, null /* style */, null /* cssClass */);
 }

        /// <include file='doc\XhtmlBasicListAdapter.uex' path='docs/doc[@for="XhtmlListAdapter.RenderList"]/*' />
        protected virtual void RenderList (XhtmlMobileTextWriter writer) {
            MobileListItemCollection items = Control.Items;
            if (items.Count == 0) {
                return;
            }

            ListDecoration decoration = Control.Decoration;

            // Review: Consider replacing switch.
            switch (decoration) {
                case ListDecoration.Bulleted:
                    RenderBulletedList (writer);
                    break;
                case ListDecoration.Numbered:
                    RenderNumberedList (writer);
                    break;
                default:
                    if (!Device.Tables) {
                        RenderUndecoratedList(writer);
                        return;
                    }
                    RenderTableList (writer);
                    break;
            }
        }

        /// <include file='doc\XhtmlBasicSelectionListAdapter.uex' path='docs/doc[@for="XhtmlSelectionListAdapter.Render"]/*' />
        public override void Render(XhtmlMobileTextWriter writer) {
            // Assumption: XhtmlBasic devices all support tables (conforming to spec).

            if (Control.Items.Count == 0) {
                return;
            }
            

            if ((String) Device[XhtmlConstants.RequiresOnEnterForward] == "true") {
                AddOnEnterForward(writer);
            }

            int selectedIndex = Control.SelectedIndex;
            
            switch(Control.SelectType) {
                case ListSelectType.DropDown:
                case ListSelectType.ListBox:
                case ListSelectType.MultiSelectListBox:
                    RenderSelectElement (writer);
                    break;

                case ListSelectType.Radio:
                case ListSelectType.CheckBox:
                    RenderInputElementSet (writer);
                    break;
            }
        }

 /// <include file='doc\XhtmlBasicPanelAdapter.uex' path='docs/doc[@for="XhtmlPanelAdapter.Render"]/*' />
 public override void Render(XhtmlMobileTextWriter writer) {
     if (Control.Content != null) {
         Control.Content.RenderControl(writer);
     }
     else {
         ConditionalEnterStyle(writer, Style);
         ConditionalRenderOpeningDivElement(writer);
         RenderChildren(writer);
         ConditionalSetPendingBreak(writer);
         ConditionalRenderClosingDivElement(writer);
         ConditionalExitStyle(writer, Style);
     }
 }    

        /// <include file='doc\XhtmlBasicValidationSummaryAdapter.uex' path='docs/doc[@for="XhtmlValidationSummaryAdapter.Render"]/*' />
        public override void Render(XhtmlMobileTextWriter writer) {
            String[] errorMessages = null;

            if (Control.Visible) {
                errorMessages = Control.GetErrorMessages();
            }

            if (errorMessages != null) {
                ConditionalEnterStyle(writer, Style, "div");
                ConditionalRenderOpeningDivElement(writer);
                if (Control.HeaderText.Length > 0) {
                    // ConditionalClearCachedEndTag() is for a device special case.
                    ConditionalClearCachedEndTag(writer, Control.HeaderText);
                    writer.WriteEncodedText (Control.HeaderText);
                }

                ArrayList arr = new ArrayList();
                foreach (String errorMessage in errorMessages) {
                    Debug.Assert(errorMessage != null && errorMessage.Length > 0, "Bad Error Messages");
                    arr.Add(errorMessage);
                }

                _list.Decoration = ListDecoration.Bulleted;
                _list.DataSource = arr;
                _list.DataBind();

                if (String.Compare(Control.FormToValidate, Control.Form.UniqueID, true, CultureInfo.CurrentCulture) != 0) {
                    _link.NavigateUrl = Constants.FormIDPrefix + Control.FormToValidate;
                    String controlBackLabel = Control.BackLabel;
                    _link.Text = controlBackLabel == null || controlBackLabel.Length == 0 ? GetDefaultLabel(BackLabel) : controlBackLabel;
                    // Summary writes its own break so last control should write one.
                    _link.BreakAfter = false;
                    ((IAttributeAccessor)_link).SetAttribute(XhtmlConstants.AccessKeyCustomAttribute, GetCustomAttributeValue(XhtmlConstants.AccessKeyCustomAttribute));
                }
                else {
                    _link.Visible = false;
                    // Summary writes its own break so last control should write one.
                    _list.BreakAfter = false;
                }

                // Render the child controls to display error message list and a
                // link for going back to the Form that is having error
                RenderChildren(writer);
                // ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
                // ConditionalExitStyle may render a block element and clear the pending break.
                ConditionalSetPendingBreak(writer);            
                ConditionalRenderClosingDivElement(writer);
                ConditionalExitStyle(writer, Style);
            }
        }

 /// <include file='doc\XhtmlBasicLinkAdapter.uex' path='docs/doc[@for="XhtmlLinkAdapter.Render"]/*' />
 public override void Render(XhtmlMobileTextWriter writer) {
     ConditionalClearPendingBreak(writer);
     ConditionalEnterStyle(writer, Style);
     String cssClass = GetCustomAttributeValue(XhtmlConstants.CssClassCustomAttribute);
     String accessKey = GetCustomAttributeValue(XhtmlConstants.AccessKeyCustomAttribute);
     RenderBeginLink(writer, Control.NavigateUrl, accessKey, Style, cssClass);
     String controlText = Control.Text;
     writer.WriteEncodedText(controlText == null || controlText.Length == 0 ? Control.NavigateUrl : controlText);
     RenderEndLink(writer);
     // ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
     // ConditionalExitStyle may render a block element and clear the pending break.
     ConditionalSetPendingBreakAfterInline(writer);  
     ConditionalExitStyle(writer, Style);
 }

 /// <include file='doc\XhtmlBasicCommandAdapter.uex' path='docs/doc[@for="XhtmlCommandAdapter.Render"]/*' />
 public override void Render(XhtmlMobileTextWriter writer) {
     // Note: Since XHTML Basic and MP do not include the script element, we ignore the
     // Format==Link attribute as in CHTML.
     ConditionalClearPendingBreak(writer);
     string imageUrl = Control.ImageUrl;
     if (imageUrl != null && 
         imageUrl.Length > 0 &&
         Device.SupportsImageSubmit) {
         RenderAsInputTypeImage(writer);
     }
     else {
         RenderAsInputTypeSubmit(writer);
     }
 }

 /// <include file='doc\XhtmlBasicLiteralTextAdapter.uex' path='docs/doc[@for="XhtmlLiteralTextAdapter.Render"]/*' />
 public override void Render(XhtmlMobileTextWriter writer) {
     // ConditionalClearCachedEndTag() is for a device special case.
     ConditionalClearCachedEndTag(writer, Control.Text);
     String text = Control.PagedText;
     ConditionalEnterStyle(writer, Style);
     ConditionalRenderOpeningSpanElement(writer);
     writer.WritePendingBreak();
     writer.WriteEncodedText(text);
     // ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
     // ConditionalExitStyle may render a block element and clear the pending break.
     ConditionalSetPendingBreak(writer);            
     ConditionalRenderClosingSpanElement(writer);
     ConditionalExitStyle(writer, Style);
 }

 /// <include file='doc\XhtmlBasicListAdapter.uex' path='docs/doc[@for="XhtmlListAdapter.Render"]/*' />
 public override void Render (XhtmlMobileTextWriter writer) {
     if (Control.HasControls()) {
         ConditionalRenderOpeningDivElement(writer);
         RenderChildren (writer);
         ConditionalRenderClosingDivElement(writer);
         return;
     }
     if (Control.Items.Count != 0) {
         ClearPendingBreakIfDeviceBreaksOnBlockLevel(writer); // we are writing a block level element in all cases.
     }
     ConditionalEnterLayout(writer, Style);            
     RenderList (writer);
     ConditionalExitLayout(writer, Style);
 }

 private void RenderAsInputTypeImage(XhtmlMobileTextWriter writer) {
     ConditionalEnterStyle(writer, Style);
     writer.WriteBeginTag("input");
     writer.WriteAttribute("type", "image");
     writer.WriteAttribute("name", Control.UniqueID);
     writer.WriteAttribute("src", Control.ResolveUrl(Control.ImageUrl), true);
     writer.WriteAttribute("alt", Control.Text, true);
     ConditionalRenderClassAttribute(writer);
     ConditionalRenderCustomAttribute(writer, XhtmlConstants.AccessKeyCustomAttribute);
     writer.Write("/>");
     // ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
     // ConditionalExitStyle may render a block element and clear the pending break.
     ConditionalSetPendingBreakAfterInline(writer);
     ConditionalExitStyle(writer, Style);
 }

        /// <include file='doc\XhtmlBasicTextBoxAdapter.uex' path='docs/doc[@for="XhtmlTextBoxAdapter.Render"]/*' />
        public override void Render(XhtmlMobileTextWriter writer) {
            ConditionalClearPendingBreak(writer);
            ConditionalEnterStyle(writer, Style);
            ConditionalRenderOpeningSpanElement(writer);

            if ((String) Device[XhtmlConstants.RequiresOnEnterForward] == "true") {
                writer.AddOnEnterForwardSetVar(Control.UniqueID, Control.Text);
            }
            
            writer.WriteBeginTag("input");

            writer.WriteAttribute("name", Control.UniqueID);

            ConditionalRenderCustomAttribute(writer, XhtmlConstants.AccessKeyCustomAttribute);
            String controlText = Control.Text;
            if (controlText != null && controlText.Length > 0 && !Control.Password) {
                writer.Write(" value=\"");
                writer.WriteEncodedText(controlText);
                writer.Write("\"");
            }

            if (Control.Size > 0) {
                writer.WriteAttribute("size", Control.Size.ToString(CultureInfo.InvariantCulture));
            }

            if (Control.MaxLength > 0) {
                writer.WriteAttribute("maxlength", Control.MaxLength.ToString(CultureInfo.InvariantCulture));
            }

            String requiresType = Device["requiresInputTypeAttribute"];
            if (Control.Password) {
                writer.WriteAttribute("type", "password");
            }
            // InvariantCulture not needed, but included for best practices.
            else if (requiresType != null && String.Equals(requiresType, "true", StringComparison.OrdinalIgnoreCase)) {
                writer.WriteAttribute("type", "text");
            }


            writer.Write("/>");
            // ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
            // ConditionalExitStyle may render a block element and clear the pending break.
            ConditionalSetPendingBreakAfterInline(writer);            
            ConditionalRenderClosingSpanElement(writer);
            ConditionalExitStyle(writer, Style);
        }

        /// <include file='doc\XhtmlBasicImageAdapter.uex' path='docs/doc[@for="XhtmlImageAdapter.RenderImage"]/*' />
        protected virtual void RenderImage(XhtmlMobileTextWriter writer) {
            String source = Control.ImageUrl;
            writer.WriteBeginTag("img");
            if(source != null && source.Length > 0) {
                source = Page.Server.UrlPathEncode(Control.ResolveUrl(source.Trim()));
                writer.WriteAttribute("src", source, true);
                writer.AddResource(source);
            }

            String alternateText = Control.AlternateText;
            if (alternateText == null || alternateText.Length == 0) {
                alternateText = " "; // ASURT 143759 and VSWhidbey 78593
            }
            writer.WriteAttribute("alt", alternateText, true);
            
            // Review: Html adapter writes border=0 attribute, but don't need this here?
            writer.Write(" />");
        }

 private void AddOnEnterForward(XhtmlMobileTextWriter writer) {
     if (Control.SelectType == ListSelectType.CheckBox) {
         // ASURT 142732
         writer.AddOnEnterForwardSetVar(Control.UniqueID);
         return;
     }
     bool firstIndex = true;
     StringBuilder builder = new StringBuilder();
     for (int i = 0; i < Control.Items.Count; i++) {
         if (Control.Items[i].Selected) {
             if (!firstIndex) {
                 builder.Append(";");
             }
             builder.Append(i.ToString(CultureInfo.InvariantCulture));
             firstIndex = false;
         }
     }
     writer.AddOnEnterForwardSetVar(Control.UniqueID, builder.ToString());
 }