XhtmlBasicFormAdapter.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Adapters / XhtmlAdapters / XhtmlBasicFormAdapter.cs / 1305376 / XhtmlBasicFormAdapter.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Globalization; 
using System.Security.Permissions;
using System.Web; 
using System.Web.UI;
using System.Web.Mobile;
using System.Web.Security;
using System.Web.UI.MobileControls; 
using System.Web.UI.MobileControls.Adapters;
using System.Collections; 
 
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource.XhtmlAdapters 
#else
namespace System.Web.UI.MobileControls.Adapters.XhtmlAdapters
#endif
{ 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
    public class XhtmlFormAdapter : XhtmlControlAdapter { 
        /// 
        public new Form Control {
            get {
                return base.Control as Form; 
            }
        } 
 
        /// 
        public override void Render (XhtmlMobileTextWriter writer) { 
            // Note: ,  rendered by page adapter, as in HTML case.
            String formsAuthCookieName = FormsAuthentication.FormsCookieName;
            if(!Device.SupportsRedirectWithCookie)
            { 
                if(formsAuthCookieName != null && formsAuthCookieName.Length > 0)
                { 
                    HttpContext.Current.Response.Cookies.Remove(formsAuthCookieName); 
                }
            } 
            writer.WriteBeginTag ("form");
            writer.WriteAttribute ("id", Control.ClientID);
            writer.WriteAttribute ("method", Control.Method.ToString().ToLower(CultureInfo.CurrentCulture));
            writer.Write (" action=\""); 
            RenderPostbackUrl(writer);
            if(Control.Action.Length > 0) { 
                if(Control.Action.IndexOf("?", StringComparison.Ordinal) != -1) { 
                    writer.Write("&");
                } 
                else {
                    writer.Write("?");
                }
            } 
            else {
                writer.Write("?"); 
            } 
            writer.Write(Page.UniqueFilePathSuffix);
 
            if (Control.Method != FormMethod.Get &&
                Control.Action.Length == 0) {   // VSWhidbey 411176: We don't include QueryStringText if Action is explicitly set

                String queryStringText = PreprocessQueryString(Page.QueryStringText); 
                if (queryStringText != null && queryStringText.Length > 0) {
                    String amp = (String)Device[XhtmlConstants.SupportsUrlAttributeEncoding] != "false"  ? "&" : "&"; 
                    writer.Write(amp); 
                    if((String)Device[XhtmlConstants.SupportsUrlAttributeEncoding] != "false") {
                        writer.WriteEncodedText(queryStringText); 
                    }
                    else {
                        writer.Write(queryStringText);
                    } 
                }
            } 
            writer.WriteLine ("\">"); 
            bool needDivStyle = (String)Device[XhtmlConstants.RequiresXhtmlCssSuppression] != "true" &&
                (String)Device["supportsBodyClassAttribute"] == "false"; 
            if (!needDivStyle) {
                if((String)Device["usePOverDiv"] == "true")
                    writer.WriteFullBeginTag("p");
                else 
                    writer.WriteFullBeginTag ("div");
            } 
            else { 
                if((String)Device["usePOverDiv"] == "true")
                    writer.EnterStyle(Style, "p"); 
                else
                    writer.EnterStyle (Style, "div");
            }
            RenderPostBackHeader (writer); 
            // Renders hidden variables for IPostBackDataHandlers which are
            // not displayed due to pagination or secondary UI. 
            RenderOffPageVariables(writer, Control, Control.CurrentPage); 

            RenderChildren (writer); 
            if (!needDivStyle) {
                if((String)Device["usePOverDiv"] == "true")
                    writer.WriteEndTag("p");
                else 
                    writer.WriteEndTag ("div");
            } 
            else { 
                if((String)Device["usePOverDiv"] == "true")
                    writer.ExitStyle(Style); 
                else
                    writer.ExitStyle (Style);
            }
            writer.WriteEndTag ("form"); 
        }
 
        private void RenderPostBackHeader(XhtmlMobileTextWriter writer) { 
            bool postBack = Page.ActiveForm.Action.Length == 0;
 
            RenderPageState(writer);
            if (!postBack) {
                writer.WriteHiddenField(PageAdapter.EventSourceKey, XhtmlConstants.PostedFromOtherFile);
            } 
            else if (Page.ClientViewState == null) {
                // The empty event source variable is used to identify a 
                // postback request.  Value attribute is not needed, and some 
                // devices do not allow empty string value attributes.
                if ((String)Device["requiresHiddenFieldValues"] != "true") { 
                    writer.WriteHiddenField(PageAdapter.EventSourceKey);
                }
                else {
                    // Placeholder value is never used, just needed for some devices. 
                    writer.WriteHiddenField(PageAdapter.EventSourceKey, PageAdapter.EventSourceKey);
                } 
            } 

            RenderHiddenVariables(writer); 
        }

        private void RenderHiddenVariables(XhtmlMobileTextWriter writer) {
            if (Page.HasHiddenVariables()) { 
                String hiddenVariablePrefix = MobilePage.HiddenVariablePrefix;
                foreach (DictionaryEntry entry in Page.HiddenVariables) { 
                    if (entry.Value != null) { 
                        writer.WriteHiddenField(hiddenVariablePrefix + (String)entry.Key,
                            (String)entry.Value); 
                    }
                }
            }
        } 

        private void RenderPageState (XhtmlMobileTextWriter writer) { 
            String viewState = Page.ClientViewState; 
            if (viewState != null) {
                writer.WriteHiddenField (MobilePage.ViewStateID, viewState); 
            }
        }

        private void RenderChildren (XhtmlMobileTextWriter writer) { 

            if (SecondaryUIControl != null) { 
                RenderSecondaryUI (writer); 
                return;
            } 

            bool pagerRendered = false;
            if(Control.HasControls()) {
                foreach(Control child in Control.Controls) { 
                    if(Control.Footer == child) {
                        RenderPager(writer); 
                        pagerRendered = true; 
                    }
                    child.RenderControl(writer); 
                }
            }
            if(!pagerRendered) {
                RenderPager(writer); 
            }
        } 
 
        private void RenderSecondaryUI (XhtmlMobileTextWriter writer){
            bool secondaryUIInHeaderOrFooter = IsControlInFormHeader (SecondaryUIControl) 
                || IsControlInFormFooter (SecondaryUIControl);

            SetControlPageRecursive(SecondaryUIControl, -1);
            if (Control.Header != null && !secondaryUIInHeaderOrFooter) { 
                Control.Header.RenderControl (writer);
            } 
            OpenSecondaryUIDivs(writer, SecondaryUIControl); 
            SecondaryUIControl.RenderControl (writer);
            CloseSecondaryUIDivs(writer); 
            if (Control.Footer != null && !secondaryUIInHeaderOrFooter) {
                Control.Footer.RenderControl (writer);
            }
        } 

        ///////////////////////////////////////////////////////////////////////// 
        //  SECONDARY UI SUPPORT 
        /////////////////////////////////////////////////////////////////////////
        private MobileControl _secondaryUIControl; 
        private int _secondaryUIMode;
        private int _secondaryUIDivsOpened = 0;

        private void OpenSecondaryUIDivs(XhtmlMobileTextWriter writer, Control control) { 
            Control ctl = control.Parent as MobileControl;
            while (ctl != null) { 
                String cssClass = ((IAttributeAccessor) ctl).GetAttribute(XhtmlConstants.CssClassCustomAttribute); 
                if (cssClass != null && cssClass. Length > 0) {
                    if((String)Device["usePOverDiv"] == "true") { 
                        writer.WriteBeginTag("p");
                    }
                    else {
                        writer.WriteBeginTag("div"); 
                    }
                    writer.WriteAttribute("class", cssClass, true); 
                    writer.WriteLine(">"); 
                    _secondaryUIDivsOpened++;
                } 
                ctl = ctl.Parent as MobileControl;
            }
        }
 
        private void CloseSecondaryUIDivs(XhtmlMobileTextWriter writer) {
            for (int i = 0; i < _secondaryUIDivsOpened; i++) { 
                if((String)Device["usePOverDiv"] == "true") { 
                    writer.WriteEndTag("p");
                } 
                else {
                    writer.WriteEndTag("div");
                }
                writer.WriteLine(); 
            }
        } 
 
        internal int GetSecondaryUIMode(MobileControl control) {
            return (control != null && _secondaryUIControl == control) ? _secondaryUIMode : NotSecondaryUI; 
        }

        internal void SetSecondaryUIMode(MobileControl control, int mode) {
            if (mode != NotSecondaryUI) { 

                if (_secondaryUIControl != null && _secondaryUIControl != control) { 
                    throw new Exception( 
                        SR.GetString(SR.FormAdapterMultiControlsAttemptSecondaryUI));
                } 
                _secondaryUIControl = control;
                _secondaryUIMode = mode;
                return;
            } 

            if (control == _secondaryUIControl) { 
 
                _secondaryUIControl = null;
            } 
        }

        internal MobileControl SecondaryUIControl {
            get { 
                return _secondaryUIControl;
            } 
        } 

        // Used for Secondary UI. 
        private bool IsControlInFormHeader(MobileControl control) {
            return IsAncestor(Control.Header, control);
        }
 
        // Used for Secondary UI.
        private bool IsControlInFormFooter(MobileControl control) { 
            return IsAncestor(Control.Footer, control); 
        }
 
        private bool IsAncestor(MobileControl ancestor, MobileControl descendant) {
            for (Control i = descendant; i != null; i = i.Parent) {
                if (i == ancestor) {
                    return true; 
                }
            } 
            return false; 
        }
 
        /////////////////////////////////////////////////////////////////////////
        //  PAGINATION SUPPORT
        /////////////////////////////////////////////////////////////////////////
        ///  
        protected virtual void RenderPager (XhtmlMobileTextWriter writer) {
            PagerStyle pagerStyle = Control.PagerStyle; 
 
            int pageCount = Control.PageCount;
            if (pageCount <= 1) { 
                return;
            }
            int page = Control.CurrentPage;
            String text = pagerStyle.GetPageLabelText(page, pageCount); 

            if((page > 1) || (text.Length > 0) || (page < pageCount)) { 
                writer.WritePendingBreak(); 
                ConditionalEnterStyle(writer, pagerStyle);
                ConditionalEnterPagerSpan(writer); 
            }

            if (page > 1) {
                RenderPagerTag(writer, page - 1, 
                    pagerStyle.GetPreviousPageText(page),
                    XhtmlConstants.PagerPreviousAccessKeyCustomAttribute); 
                writer.Write(" "); 
            }
 
            if (text.Length > 0) {
                writer.WriteEncodedText(text);
                writer.Write(" ");
            } 

            if (page < pageCount) { 
                RenderPagerTag(writer, page + 1, 
                    pagerStyle.GetNextPageText(page),
                    XhtmlConstants.PagerNextAccessKeyCustomAttribute); 
            }

            if((page > 1) || (text.Length > 0) || (page < pageCount)) {
                ConditionalExitPagerSpan(writer); 
                ConditionalExitStyle(writer, pagerStyle);
                writer.SetPendingBreak(); 
            } 
        }
 
        private bool _pagerCssSpanWritten = false;
        private void ConditionalEnterPagerSpan(XhtmlMobileTextWriter writer) {
            String cssClass = GetCustomAttributeValue(XhtmlConstants.CssPagerClassCustomAttribute);
            if (CssLocation == StyleSheetLocation.PhysicalFile && 
                cssClass != null &&
                cssClass.Length > 0) { 
                writer.WriteBeginTag ("span"); 
                writer.WriteAttribute("class", cssClass, true);
                _pagerCssSpanWritten = true; 
                writer.Write(">");
            }
        }
 

        private void ConditionalExitPagerSpan(XhtmlMobileTextWriter writer) { 
            if (_pagerCssSpanWritten) { 
                writer.WriteEndTag("span");
            } 
        }

        /// 
        protected virtual void RenderPagerTag( 
            XhtmlMobileTextWriter writer,
            int pageToNavigate, 
            String text, 
            String accessKeyCustomAttribute) {
            writer.WriteBeginTag("input"); 

            // Specially encode the page number with the control id.
            // The corresponding code that handles postback should know how
            // to extract the page number correctly. 
            writer.Write(" name=\"");
            writer.Write(Control.UniqueID); 
            writer.Write(Constants.PagePrefix); 
            writer.Write(pageToNavigate.ToString(CultureInfo.InvariantCulture));
            writer.Write("\""); 

            writer.WriteAttribute("type", "submit");
            writer.WriteAttribute("value", text, true);
            ConditionalRenderCustomAttribute(writer, accessKeyCustomAttribute, XhtmlConstants.AccessKeyCustomAttribute); 
            writer.Write("/>");
        } 
 
        private void RenderPostbackUrl(XhtmlMobileTextWriter writer) {
            if ((String)Device["requiresAbsolutePostbackUrl"] == "true") { 
                RenderAbsolutePostbackUrl (writer);
                return;
            }
            if (Control.Action.Length > 0) { 
                String url = Control.ResolveUrl(PreprocessQueryString(Control.Action));
                writer.Write(url); 
            } 
            else {
                writer.WriteEncodedUrl(Page.RelativeFilePath); 
            }
        }

        private void RenderAbsolutePostbackUrl(XhtmlMobileTextWriter writer) { 
            String url = PreprocessQueryString(Control.Action);
            if (url.Length > 0) { 
                // Not only do we need to resolve the URL, but we need to make it absolute. 
                url = Page.MakePathAbsolute(Control.ResolveUrl(url));
                writer.Write(url); 
            }
            else {
                writer.WriteEncodedUrl(Page.AbsoluteFilePath);
            } 
        }
 
        private static void SetControlPageRecursive(Control control, int page) 
        {
            MobileControl mc = control as MobileControl; 
            if(mc != null)
            {
                mc.FirstPage = page;
                mc.LastPage = page; 
            }
            if (control.HasControls()) 
            { 
                foreach (Control child in control.Controls)
                { 
                    MobileControl mobileChild = child as MobileControl;
                    if (mobileChild != null)
                    {
                            mobileChild.FirstPage = page; 
                            mobileChild.LastPage = page;
                    } 
                    else 
                    {
                        SetControlPageRecursive(child, page); 
                    }
                }
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Globalization; 
using System.Security.Permissions;
using System.Web; 
using System.Web.UI;
using System.Web.Mobile;
using System.Web.Security;
using System.Web.UI.MobileControls; 
using System.Web.UI.MobileControls.Adapters;
using System.Collections; 
 
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource.XhtmlAdapters 
#else
namespace System.Web.UI.MobileControls.Adapters.XhtmlAdapters
#endif
{ 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
    public class XhtmlFormAdapter : XhtmlControlAdapter { 
        /// 
        public new Form Control {
            get {
                return base.Control as Form; 
            }
        } 
 
        /// 
        public override void Render (XhtmlMobileTextWriter writer) { 
            // Note: ,  rendered by page adapter, as in HTML case.
            String formsAuthCookieName = FormsAuthentication.FormsCookieName;
            if(!Device.SupportsRedirectWithCookie)
            { 
                if(formsAuthCookieName != null && formsAuthCookieName.Length > 0)
                { 
                    HttpContext.Current.Response.Cookies.Remove(formsAuthCookieName); 
                }
            } 
            writer.WriteBeginTag ("form");
            writer.WriteAttribute ("id", Control.ClientID);
            writer.WriteAttribute ("method", Control.Method.ToString().ToLower(CultureInfo.CurrentCulture));
            writer.Write (" action=\""); 
            RenderPostbackUrl(writer);
            if(Control.Action.Length > 0) { 
                if(Control.Action.IndexOf("?", StringComparison.Ordinal) != -1) { 
                    writer.Write("&");
                } 
                else {
                    writer.Write("?");
                }
            } 
            else {
                writer.Write("?"); 
            } 
            writer.Write(Page.UniqueFilePathSuffix);
 
            if (Control.Method != FormMethod.Get &&
                Control.Action.Length == 0) {   // VSWhidbey 411176: We don't include QueryStringText if Action is explicitly set

                String queryStringText = PreprocessQueryString(Page.QueryStringText); 
                if (queryStringText != null && queryStringText.Length > 0) {
                    String amp = (String)Device[XhtmlConstants.SupportsUrlAttributeEncoding] != "false"  ? "&" : "&"; 
                    writer.Write(amp); 
                    if((String)Device[XhtmlConstants.SupportsUrlAttributeEncoding] != "false") {
                        writer.WriteEncodedText(queryStringText); 
                    }
                    else {
                        writer.Write(queryStringText);
                    } 
                }
            } 
            writer.WriteLine ("\">"); 
            bool needDivStyle = (String)Device[XhtmlConstants.RequiresXhtmlCssSuppression] != "true" &&
                (String)Device["supportsBodyClassAttribute"] == "false"; 
            if (!needDivStyle) {
                if((String)Device["usePOverDiv"] == "true")
                    writer.WriteFullBeginTag("p");
                else 
                    writer.WriteFullBeginTag ("div");
            } 
            else { 
                if((String)Device["usePOverDiv"] == "true")
                    writer.EnterStyle(Style, "p"); 
                else
                    writer.EnterStyle (Style, "div");
            }
            RenderPostBackHeader (writer); 
            // Renders hidden variables for IPostBackDataHandlers which are
            // not displayed due to pagination or secondary UI. 
            RenderOffPageVariables(writer, Control, Control.CurrentPage); 

            RenderChildren (writer); 
            if (!needDivStyle) {
                if((String)Device["usePOverDiv"] == "true")
                    writer.WriteEndTag("p");
                else 
                    writer.WriteEndTag ("div");
            } 
            else { 
                if((String)Device["usePOverDiv"] == "true")
                    writer.ExitStyle(Style); 
                else
                    writer.ExitStyle (Style);
            }
            writer.WriteEndTag ("form"); 
        }
 
        private void RenderPostBackHeader(XhtmlMobileTextWriter writer) { 
            bool postBack = Page.ActiveForm.Action.Length == 0;
 
            RenderPageState(writer);
            if (!postBack) {
                writer.WriteHiddenField(PageAdapter.EventSourceKey, XhtmlConstants.PostedFromOtherFile);
            } 
            else if (Page.ClientViewState == null) {
                // The empty event source variable is used to identify a 
                // postback request.  Value attribute is not needed, and some 
                // devices do not allow empty string value attributes.
                if ((String)Device["requiresHiddenFieldValues"] != "true") { 
                    writer.WriteHiddenField(PageAdapter.EventSourceKey);
                }
                else {
                    // Placeholder value is never used, just needed for some devices. 
                    writer.WriteHiddenField(PageAdapter.EventSourceKey, PageAdapter.EventSourceKey);
                } 
            } 

            RenderHiddenVariables(writer); 
        }

        private void RenderHiddenVariables(XhtmlMobileTextWriter writer) {
            if (Page.HasHiddenVariables()) { 
                String hiddenVariablePrefix = MobilePage.HiddenVariablePrefix;
                foreach (DictionaryEntry entry in Page.HiddenVariables) { 
                    if (entry.Value != null) { 
                        writer.WriteHiddenField(hiddenVariablePrefix + (String)entry.Key,
                            (String)entry.Value); 
                    }
                }
            }
        } 

        private void RenderPageState (XhtmlMobileTextWriter writer) { 
            String viewState = Page.ClientViewState; 
            if (viewState != null) {
                writer.WriteHiddenField (MobilePage.ViewStateID, viewState); 
            }
        }

        private void RenderChildren (XhtmlMobileTextWriter writer) { 

            if (SecondaryUIControl != null) { 
                RenderSecondaryUI (writer); 
                return;
            } 

            bool pagerRendered = false;
            if(Control.HasControls()) {
                foreach(Control child in Control.Controls) { 
                    if(Control.Footer == child) {
                        RenderPager(writer); 
                        pagerRendered = true; 
                    }
                    child.RenderControl(writer); 
                }
            }
            if(!pagerRendered) {
                RenderPager(writer); 
            }
        } 
 
        private void RenderSecondaryUI (XhtmlMobileTextWriter writer){
            bool secondaryUIInHeaderOrFooter = IsControlInFormHeader (SecondaryUIControl) 
                || IsControlInFormFooter (SecondaryUIControl);

            SetControlPageRecursive(SecondaryUIControl, -1);
            if (Control.Header != null && !secondaryUIInHeaderOrFooter) { 
                Control.Header.RenderControl (writer);
            } 
            OpenSecondaryUIDivs(writer, SecondaryUIControl); 
            SecondaryUIControl.RenderControl (writer);
            CloseSecondaryUIDivs(writer); 
            if (Control.Footer != null && !secondaryUIInHeaderOrFooter) {
                Control.Footer.RenderControl (writer);
            }
        } 

        ///////////////////////////////////////////////////////////////////////// 
        //  SECONDARY UI SUPPORT 
        /////////////////////////////////////////////////////////////////////////
        private MobileControl _secondaryUIControl; 
        private int _secondaryUIMode;
        private int _secondaryUIDivsOpened = 0;

        private void OpenSecondaryUIDivs(XhtmlMobileTextWriter writer, Control control) { 
            Control ctl = control.Parent as MobileControl;
            while (ctl != null) { 
                String cssClass = ((IAttributeAccessor) ctl).GetAttribute(XhtmlConstants.CssClassCustomAttribute); 
                if (cssClass != null && cssClass. Length > 0) {
                    if((String)Device["usePOverDiv"] == "true") { 
                        writer.WriteBeginTag("p");
                    }
                    else {
                        writer.WriteBeginTag("div"); 
                    }
                    writer.WriteAttribute("class", cssClass, true); 
                    writer.WriteLine(">"); 
                    _secondaryUIDivsOpened++;
                } 
                ctl = ctl.Parent as MobileControl;
            }
        }
 
        private void CloseSecondaryUIDivs(XhtmlMobileTextWriter writer) {
            for (int i = 0; i < _secondaryUIDivsOpened; i++) { 
                if((String)Device["usePOverDiv"] == "true") { 
                    writer.WriteEndTag("p");
                } 
                else {
                    writer.WriteEndTag("div");
                }
                writer.WriteLine(); 
            }
        } 
 
        internal int GetSecondaryUIMode(MobileControl control) {
            return (control != null && _secondaryUIControl == control) ? _secondaryUIMode : NotSecondaryUI; 
        }

        internal void SetSecondaryUIMode(MobileControl control, int mode) {
            if (mode != NotSecondaryUI) { 

                if (_secondaryUIControl != null && _secondaryUIControl != control) { 
                    throw new Exception( 
                        SR.GetString(SR.FormAdapterMultiControlsAttemptSecondaryUI));
                } 
                _secondaryUIControl = control;
                _secondaryUIMode = mode;
                return;
            } 

            if (control == _secondaryUIControl) { 
 
                _secondaryUIControl = null;
            } 
        }

        internal MobileControl SecondaryUIControl {
            get { 
                return _secondaryUIControl;
            } 
        } 

        // Used for Secondary UI. 
        private bool IsControlInFormHeader(MobileControl control) {
            return IsAncestor(Control.Header, control);
        }
 
        // Used for Secondary UI.
        private bool IsControlInFormFooter(MobileControl control) { 
            return IsAncestor(Control.Footer, control); 
        }
 
        private bool IsAncestor(MobileControl ancestor, MobileControl descendant) {
            for (Control i = descendant; i != null; i = i.Parent) {
                if (i == ancestor) {
                    return true; 
                }
            } 
            return false; 
        }
 
        /////////////////////////////////////////////////////////////////////////
        //  PAGINATION SUPPORT
        /////////////////////////////////////////////////////////////////////////
        ///  
        protected virtual void RenderPager (XhtmlMobileTextWriter writer) {
            PagerStyle pagerStyle = Control.PagerStyle; 
 
            int pageCount = Control.PageCount;
            if (pageCount <= 1) { 
                return;
            }
            int page = Control.CurrentPage;
            String text = pagerStyle.GetPageLabelText(page, pageCount); 

            if((page > 1) || (text.Length > 0) || (page < pageCount)) { 
                writer.WritePendingBreak(); 
                ConditionalEnterStyle(writer, pagerStyle);
                ConditionalEnterPagerSpan(writer); 
            }

            if (page > 1) {
                RenderPagerTag(writer, page - 1, 
                    pagerStyle.GetPreviousPageText(page),
                    XhtmlConstants.PagerPreviousAccessKeyCustomAttribute); 
                writer.Write(" "); 
            }
 
            if (text.Length > 0) {
                writer.WriteEncodedText(text);
                writer.Write(" ");
            } 

            if (page < pageCount) { 
                RenderPagerTag(writer, page + 1, 
                    pagerStyle.GetNextPageText(page),
                    XhtmlConstants.PagerNextAccessKeyCustomAttribute); 
            }

            if((page > 1) || (text.Length > 0) || (page < pageCount)) {
                ConditionalExitPagerSpan(writer); 
                ConditionalExitStyle(writer, pagerStyle);
                writer.SetPendingBreak(); 
            } 
        }
 
        private bool _pagerCssSpanWritten = false;
        private void ConditionalEnterPagerSpan(XhtmlMobileTextWriter writer) {
            String cssClass = GetCustomAttributeValue(XhtmlConstants.CssPagerClassCustomAttribute);
            if (CssLocation == StyleSheetLocation.PhysicalFile && 
                cssClass != null &&
                cssClass.Length > 0) { 
                writer.WriteBeginTag ("span"); 
                writer.WriteAttribute("class", cssClass, true);
                _pagerCssSpanWritten = true; 
                writer.Write(">");
            }
        }
 

        private void ConditionalExitPagerSpan(XhtmlMobileTextWriter writer) { 
            if (_pagerCssSpanWritten) { 
                writer.WriteEndTag("span");
            } 
        }

        /// 
        protected virtual void RenderPagerTag( 
            XhtmlMobileTextWriter writer,
            int pageToNavigate, 
            String text, 
            String accessKeyCustomAttribute) {
            writer.WriteBeginTag("input"); 

            // Specially encode the page number with the control id.
            // The corresponding code that handles postback should know how
            // to extract the page number correctly. 
            writer.Write(" name=\"");
            writer.Write(Control.UniqueID); 
            writer.Write(Constants.PagePrefix); 
            writer.Write(pageToNavigate.ToString(CultureInfo.InvariantCulture));
            writer.Write("\""); 

            writer.WriteAttribute("type", "submit");
            writer.WriteAttribute("value", text, true);
            ConditionalRenderCustomAttribute(writer, accessKeyCustomAttribute, XhtmlConstants.AccessKeyCustomAttribute); 
            writer.Write("/>");
        } 
 
        private void RenderPostbackUrl(XhtmlMobileTextWriter writer) {
            if ((String)Device["requiresAbsolutePostbackUrl"] == "true") { 
                RenderAbsolutePostbackUrl (writer);
                return;
            }
            if (Control.Action.Length > 0) { 
                String url = Control.ResolveUrl(PreprocessQueryString(Control.Action));
                writer.Write(url); 
            } 
            else {
                writer.WriteEncodedUrl(Page.RelativeFilePath); 
            }
        }

        private void RenderAbsolutePostbackUrl(XhtmlMobileTextWriter writer) { 
            String url = PreprocessQueryString(Control.Action);
            if (url.Length > 0) { 
                // Not only do we need to resolve the URL, but we need to make it absolute. 
                url = Page.MakePathAbsolute(Control.ResolveUrl(url));
                writer.Write(url); 
            }
            else {
                writer.WriteEncodedUrl(Page.AbsoluteFilePath);
            } 
        }
 
        private static void SetControlPageRecursive(Control control, int page) 
        {
            MobileControl mc = control as MobileControl; 
            if(mc != null)
            {
                mc.FirstPage = page;
                mc.LastPage = page; 
            }
            if (control.HasControls()) 
            { 
                foreach (Control child in control.Controls)
                { 
                    MobileControl mobileChild = child as MobileControl;
                    if (mobileChild != null)
                    {
                            mobileChild.FirstPage = page; 
                            mobileChild.LastPage = page;
                    } 
                    else 
                    {
                        SetControlPageRecursive(child, page); 
                    }
                }
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK