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• MVVM and Animations in Silverlight

  - by Aligned

  I wanted to spin an icon to show progress to my user while some content was downloading. I'm using MVVM (aren't you) and made a satisfactory Storyboard to spin the icon. However, it took longer than expected to trigger that animation from my ViewModel's property.I used a combination of the GoToState action and the DataTrigger from the Microsoft.Expression.Interactions dll as described here.Then I had problems getting it to start until I found this approach that saved the day. The DataTrigger didn't bind right away because "it doesn’t change visual state on load is because the StateTarget property of the GotoStateAction is null at the time the DataTrigger fires.". Here's my XAML, hopefully you can fill in the rest.<Image x:Name="StatusIcon" AutomationProperties.AutomationId="StatusIcon" Width="16" Height="16" Stretch="Fill" Source="inProgress.png" ToolTipService.ToolTip="{Binding StatusTooltip}"> <i:Interaction.Triggers> <utilitiesBehaviors:DataTriggerWhichFiresOnLoad Value="True" Binding="{Binding IsDownloading, Mode=OneWay, TargetNullValue=True}"> <ei:GoToStateAction StateName="Downloading" /> </utilitiesBehaviors:DataTriggerWhichFiresOnLoad> <utilitiesBehaviors:DataTriggerWhichFiresOnLoad Value="False" Binding="{Binding IsDownloading, Mode=OneWay, TargetNullValue=True}"> <ei:GoToStateAction StateName="Complete"/> </utilitiesBehaviors:DataTriggerWhichFiresOnLoad> </i:Interaction.Triggers> <Image.Projection> <PlaneProjection/> </Image.Projection> <VisualStateManager.VisualStateGroups> <VisualStateGroup x:Name="VisualStateGroup"> <VisualStateGroup.Transitions> <VisualTransition GeneratedDuration="0" To="Downloading"> <VisualTransition.GeneratedEasingFunction> <QuadraticEase EasingMode="EaseInOut"/> </VisualTransition.GeneratedEasingFunction> <Storyboard RepeatBehavior="Forever"> <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Projection).(PlaneProjection.RotationZ)" Storyboard.TargetName="StatusIcon"> <EasingDoubleKeyFrame KeyTime="0:0:1.5" Value="-360"/> <EasingDoubleKeyFrame KeyTime="0:0:2" Value="-360"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </VisualTransition> <VisualTransition From="Downloading" GeneratedDuration="0"/> </VisualStateGroup.Transitions> <VisualState x:Name="Downloading"/> <VisualState x:Name="Complete"/> </VisualStateGroup> </VisualStateManager.VisualStateGroups></Image>MVVMAnimations.zip

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• MVC 3 Remote Validation jQuery error on submit

  - by Richard Reddy

  I seem to have a weird issue with remote validation on my project. I am doing a simple validation check on an email field to ensure that it is unique. I've noticed that unless I put the cursor into the textbox and then remove it to trigger the validation at least once before submitting my form I will get a javascript error. e[h] is not a function jquery.min.js line 3 If I try to resubmit the form after the above error is returned everything works as expected. It's almost like the form tried to submit before waiting for the validation to return or something. Am I required to silently fire off a remote validation request on submit before submitting my form? Below is a snapshot of the code I'm using: (I've also tried GET instead of POST but I get the same result). As mentioned above, the code works fine but the form returns a jquery error unless the validation is triggered at least once. Model: public class RegisterModel { [Required] [Remote("DoesUserNameExist", "Account", HttpMethod = "POST", ErrorMessage = "User name taken.")] [Display(Name = "User name")] public string UserName { get; set; } [Required] [Display(Name = "Firstname")] public string Firstname { get; set; } [Display(Name = "Surname")] public string Surname { get; set; } [Required] [Remote("DoesEmailExist", "Account", HttpMethod = "POST", ErrorMessage = "Email taken.", AdditionalFields = "UserName")] [Display(Name = "Email address")] public string Email { get; set; } [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 8)] [DataType(DataType.Password)] [Display(Name = "Password")] public string Password { get; set; } [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 8)] [DataType(DataType.Password)] [Display(Name = "Confirm password")] public string ConfirmPassword { get; set; } [Display(Name = "Approved?")] public bool IsApproved { get; set; } } public class UserRoleModel { [Display(Name = "Assign Roles")] public IEnumerable<RoleViewModel> AllRoles { get; set; } public RegisterModel RegisterUser { get; set; } } Controller: // POST: /Account/DoesEmailExist // passing in username so that I can ignore the same email address for the same user on edit page [HttpPost] public JsonResult DoesEmailExist([Bind(Prefix = "RegisterUser.Email")]string Email, [Bind(Prefix = "RegisterUser.UserName")]string UserName) { var user = Membership.GetUserNameByEmail(Email); if (!String.IsNullOrEmpty(UserName)) { if (user == UserName) return Json(true); } return Json(user == null); } View: <script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script> <script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.17/jquery-ui.min.js" type="text/javascript"></script> <script type="text/javascript" src="/Content/web/js/jquery.unobtrusive-ajax.min.js"></script> <script type="text/javascript" src="/Content/web/js/jquery.validate.min.js"></script> <script type="text/javascript" src="/Content/web/js/jquery.validate.unobtrusive.min.js"></script> ...... @using (Html.BeginForm()) { @Html.AntiForgeryToken() <div class="titleh"> <h3>Edit a user account</h3> </div> <div class="body"> @Html.HiddenFor(model => model.RegisterUser.UserName) @Html.Partial("_CreateOrEdit", Model) <div class="st-form-line"> <span class="st-labeltext">@Html.LabelFor(model => model.RegisterUser.IsApproved)</span> @Html.RadioButtonFor(model => model.RegisterUser.IsApproved, true, new { @class = "uniform" }) Active @Html.RadioButtonFor(model => model.RegisterUser.IsApproved, false, new { @class = "uniform" }) Disabled <div class="clear"></div> </div> <div class="button-box"> <input type="submit" name="submit" value="Save" class="st-button"/> @Html.ActionLink("Back to List", "Index", null, new { @class = "st-clear" }) </div> </div> } CreateEdit Partial View @model Project.Domain.Entities.UserRoleModel <div class="st-form-line"> <span class="st-labeltext">@Html.LabelFor(m => m.RegisterUser.Firstname)</span> @Html.TextBoxFor(m => m.RegisterUser.Firstname, new { @class = "st-forminput", @style = "width:300px" }) @Html.ValidationMessageFor(m => m.RegisterUser.Firstname) <div class="clear"></div> </div> <div class="st-form-line"> <span class="st-labeltext">@Html.LabelFor(m => m.RegisterUser.Surname)</span> @Html.TextBoxFor(m => m.RegisterUser.Surname, new { @class = "st-forminput", @style = "width:300px" }) @Html.ValidationMessageFor(m => m.RegisterUser.Surname) <div class="clear"></div> </div> <div class="st-form-line"> <span class="st-labeltext">@Html.LabelFor(m => m.RegisterUser.Email)</span> @Html.TextBoxFor(m => m.RegisterUser.Email, new { @class = "st-forminput", @style = "width:300px" }) @Html.ValidationMessageFor(m => m.RegisterUser.Email) <div class="clear"></div> </div> Thanks, Rich

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• why i am getting popup message when I am tryiing to update user.

  - by kumar

  I am getting Popup mesage something like You have chosen to open Update which is a:application/json From : http://localhost:1234 which ok cancel buttons.. I am using this code to run.. [HttpPost] public JsonResult MEdit(ExpenseBE e) { var cache = CacheFactory.GetCacheManager(); string F_ACTION = "U"; string F_DEBUG = "Y"; var excUpdateStatus = false; for (int i = 0; i <= cache.Count; i++) { var x = (ExpenseBE)cache.GetData("a" + i); if (x != null) { string Resolutioncode = e.Exception.ResolutionCode; string reasoncode = e.Exception.ReasonCode; string actioncode = e.Exception.ActionCode; e.Exception.ExceptionID = x.Exception.ExceptionID; e.Exception.ReasonCode = reasoncode; e.Exception.ReasonCode = Resolutioncode; e.Exception.ActionCode = actioncode; e.Exception.Sequence = x.Exception.Sequence; e.Exception.FollowupDate = x.Exception.FollowupDate; e.Exception.IOL = x.Exception.IOL; e.Exception.LastUpdateUser = User.Identity.Name.ToUpper().Remove(0, 4); excUpdateStatus = common.UpdateException(e.Exception, F_ACTION, F_DEBUG); } } return Json(excUpdateStatus.ToString()); } and my view is <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<NorthernTrust.ATP.iTool.Core.Business.Entities.Specialist.ExpenseBE>" %> <% using (Html.BeginForm("MEdit", "expense", FormMethod.Post)) { %> <%= Html.ValidationSummary(true)%> <fieldset class="clearfix" id="fieldset-exception"> <legend>Mass Edit Exception Information</legend> <div class="fiveper"> <label for="ExceptionStatus"> Status: <span> </span> </label> <label for="ResolutionCode"> Resolution: <span> <%=Html.DropDownListFor(model=>model.Exception.ResolutionCode,new SelectList(Model.LookupCodes["C_EXCPT_RESL"], "Key", "Value"))%> </span> </label> <label for="ReasonCode"> Reason: <span><%=Html.DropDownListFor(model => model.Exception.ReasonCode, new SelectList(Model.LookupCodes["C_EXCPT_RSN"], "Key", "Value"))%></span> </label> <label for="ExceptionStatus"> Action Taken: <span><%=Html.DropDownListFor(model => model.Exception.ActionCode, new SelectList(Model.LookupCodes["C_EXCPT_ACT"], "Key", "Value"))%></span> </label> </div> <div class="fiveper"> <label for="FollowupDate"> Follow-up: <span><input type="text" id="exc-flwup-" /></span> <%--<%=Html.EditorFor(model=>model.Exception.FollowupDate) %>--%> </label> <label for="IOL"> Inquiry #: <%=Html.TextBox("Inquiery", ViewData["inq"] ?? "")%> </label> <label>Comment</label> <span> <%=Html.TextArea("value") %> <%=Html.ValidationMessage("value")%> </span> </div> <br /> <br /> <div> <button id="btnSelect" class="button">Select All</button> <button id="btnCancel" class="button">Cancel</button> <input type="submit" class="button" value="Save" /> </div> </fieldset> <% } %> <script type="text/javascript"> $(document).ready(function() { $('#btnSelectAll').click(function() { function validate_excpt(formData, jqForm, options) { var form = jqForm[0]; } $('#btnSelect').click(function() { $('#input [type=checkbox]').attr('checked', 'checked'); }); // post-submit callback function showResponse(responseText, statusText, xhr, $form) { if ('success' == statusText) { $('#error-msg span:last').html('<strong>Update successful.</strong>'); } else { $('#error-msg span:last').html('<strong>Update failed.</strong> ' + responseText); } $('#error-msg').removeClass('hide'); } $('#exc').ajaxForm({ target: '#error-msg', beforeSubmit: validate_excpt, success: showResponse, dataType: 'json' }); $('.button').button(); }); $('.button').button(); $("input[id^='exc-flwup-']").datepicker({ duration: '', showTime: true, constrainInput: true, stepMinutes: 30, stepHours: 1, altTimeField: '', time24h: true, minDate: 0 }); $('#ui-timepicker-div').bgiframe(); }); </script> please correct me if i am doing somwhere wrong? thanks

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• how to validate the form using jquery

  - by kumar

  I have this Fieldset values.. <fieldset class="clearfix" id="fieldset-exception"> <legend>Mass Edit Exception Information</legend> <div id="#error-msg-ID" class="ui-widget hide"> <div class="ui-state-highlight ui-corner-all"> <p><span style="float: left; margin-right: 0.3em;" class="ui-icon ui-icon-info"></span> <span></span></p> </div> </div> <div class="fiveper"> <label for="ExceptionStatus"> Status: <span> </span> </label> <label for="ResolutionCode"> Resolution: <span> <%=Html.DropDownListFor(model => model.Exception.ResolutionCode, new SelectList(Model.LookupCodes["C_EXCPT_RESL"], "Key", "Value"))%> </span> </label> <label for="ReasonCode"> Reason: <span><%=Html.DropDownListFor(model => model.Exception.ReasonCode, new SelectList(Model.LookupCodes["C_EXCPT_RSN"], "Key", "Value"))%></span> </label> <label for="ExceptionStatus"> Action Taken: <span><%=Html.DropDownListFor(model => model.Exception.ActionCode, new SelectList(Model.LookupCodes["C_EXCPT_ACT"], "Key", "Value"))%></span> </label> </div> <div class="fiveper"> <label for="FollowupDate"> Follow-up: <span><input type="text" id="exc-flwup" name="fdate" /></span> <%--<%=Html.EditorFor(model=>model.Exception.FollowupDate) %>--%> </label> <label for="IOL"> Inquiry #: <%=Html.TextBox("Inquiry", ViewData["inq"] ?? "")%> </label> <label>Comment</label> <span> <%=Html.TextArea("value", ViewData["Comnt"] ?? "")%> <%=Html.ValidationMessage("value")%> </span> </div> <br /> <br /> <div> <input type="submit" class="button" value="Save" /> </div> </fieldset> before submiting I need to do some time of validation..below validation not working for me is that right what I am doing here? These all fieds user is entering from UI.. thanks <script type="text/javascript"> $(document).ready(function() { $('#btnSelectAll').click(function() { $('#EditExceptions input[name=chk]').attr('checked', true); }); $('#btnCancel').click(function() { $('#EditExceptions input[name=chk]').attr('checked',false); }); function validate_excpt(formData, jqForm, options) { var form = jqForm[0]; **if (form.e_Exception_ResolutionCode.value && !form.e_Exception_ReasonCode.value) { alert('All Resolution Codes need a Reason Code.'); return false; }** } // post-submit callback function showResponse(responseText, statusText, xhr, $form) { if (responseText[0].substring(0, 16) != "System.Exception") { $('#error-msg-ID span:last').html('<strong>Update successful.</strong>'); $().ShowDialog('Success', 'Update successful'); } else { $('#error-msg-ID span:last').html('<strong>Update failed.</strong> ' + responseText[0].substring(0, 48)); $().ShowDialog('Failed', 'Update failed'); } $('#error-msg-ID').removeClass('hide'); $('#gui-stat-').html(responseText[1]); } $('#exc-').ajaxForm({ beforeSubmit: validate_excpt, success: showResponse, dataType: 'json' }); $('.button').button(); $("input[id^='exc-flwup']").datepicker({ duration: '', showTime: true, constrainInput: true, stepMinutes: 30, stepHours: 1, altTimeField: '', time24h: true, minDate: 0 }); $('#ui-timepicker-div').bgiframe(); }); </script>

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• WPF storyboard animation issue when using VisualBrush

  - by Flack

  Hey guys, I was playing around with storyboards, a flipping animation, and visual brushes. I have encountered an issue though. Below is the xaml and code-behind of a small sample I quickly put together to try to demonstrate the problem. When you first start the app, you are presented with a red square and two buttons. If you click the "Flip" button, the red square will "flip" over and a blue one will appear. In reality, all that is happening is that the scale of the width of the StackPanel that the red square is in is being decreased until it reaches zero and then the StackPanel where a blue square is, whose width is initially scaled to zero, has its width increased. If you click the "Flip" button a few times, the animation looks ok and smooth. Now, if you hit the "Reflection" button, a reflection of the red/blue buttons is added to their respective StackPanels. Hitting the "Flip" button now will still cause the flip animation but it is no longer a smooth animation. The StackPanels width often does not shrink to zero. The width shrinks somewhat but then just stops before being completely invisible. Then the other StackPanel appears as usual. The only thing that changed was adding the reflection, which is just a VisualBrush. Below is the code. Does anyone have any idea why the animations are different between the two cases (stalling in the second case)? Thanks. <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xml:lang="en-US" xmlns:d="http://schemas.microsoft.com/expression/blend/2006" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="WpfFlipTest.Window1" x:Name="Window" Title="Window1" Width="214" Height="224"> <Window.Resources> <Storyboard x:Key="sbFlip"> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="redStack" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.4" Value="0"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00.4" Storyboard.TargetName="blueStack" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.8" Value="1"/> </DoubleAnimationUsingKeyFrames> </Storyboard> <Storyboard x:Key="sbFlipBack"> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="blueStack" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.4" Value="0"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00.4" Storyboard.TargetName="redStack" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.8" Value="1"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </Window.Resources> <Grid x:Name="LayoutRoot" Background="Gray"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <StackPanel Name="redStack" Grid.Row="0" Grid.Column="0" RenderTransformOrigin="0.5,0.5"> <StackPanel.RenderTransform> <ScaleTransform/> </StackPanel.RenderTransform> <Border Name="redBorder" BorderBrush="Transparent" BorderThickness="4" Width="Auto" Height="Auto"> <Button Margin="0" Name="redButton" Height="75" Background="Red" Width="105" /> </Border> <Border Width="{Binding ElementName=redBorder, Path=ActualWidth}" Height="{Binding ElementName=redBorder, Path=ActualHeight}" Opacity="0.2" BorderBrush="Transparent" BorderThickness="4" Name="redRefelction" Visibility="Collapsed"> <Border.OpacityMask> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Offset="0" Color="Black"/> <GradientStop Offset=".6" Color="Transparent"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Border.OpacityMask> <Border.Background> <VisualBrush Visual="{Binding ElementName=redButton}"> <VisualBrush.Transform> <ScaleTransform ScaleX="1" ScaleY="-1" CenterX="52.5" CenterY="37.5" /> </VisualBrush.Transform> </VisualBrush> </Border.Background> </Border> </StackPanel> <StackPanel Name="blueStack" Grid.Row="0" Grid.Column="0" RenderTransformOrigin="0.5,0.5"> <StackPanel.RenderTransform> <ScaleTransform ScaleX="0"/> </StackPanel.RenderTransform> <Border Name="blueBorder" BorderBrush="Transparent" BorderThickness="4" Width="Auto" Height="Auto"> <Button Grid.Row="0" Grid.Column="1" Margin="0" Width="105" Background="Blue" Name="blueButton" Height="75"/> </Border> <Border Width="{Binding ElementName=blueBorder, Path=ActualWidth}" Height="{Binding ElementName=blueBorder, Path=ActualHeight}" Opacity="0.2" BorderBrush="Transparent" BorderThickness="4" Name="blueRefelction" Visibility="Collapsed"> <Border.OpacityMask> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Offset="0" Color="Black"/> <GradientStop Offset=".6" Color="Transparent"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Border.OpacityMask> <Border.Background> <VisualBrush Visual="{Binding ElementName=blueButton}"> <VisualBrush.Transform> <ScaleTransform ScaleX="1" ScaleY="-1" CenterX="52.5" CenterY="37.5" /> </VisualBrush.Transform> </VisualBrush> </Border.Background> </Border> </StackPanel> <Button Grid.Row="1" Click="FlipButton_Click" Height="19.45" HorizontalAlignment="Left" VerticalAlignment="Top" Width="76">Flip</Button> <Button Grid.Row="0" Grid.Column="1" Click="ReflectionButton_Click" Height="19.45" HorizontalAlignment="Left" VerticalAlignment="Top" Width="76">Reflection</Button> </Grid> </Window> Here are the button click handlers: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.Windows.Media.Animation; namespace WpfFlipTest { public partial class Window1 : Window { public Window1() { InitializeComponent(); } bool flipped = false; private void FlipButton_Click(object sender, RoutedEventArgs e) { Storyboard sbFlip = (Storyboard)Resources["sbFlip"]; Storyboard sbFlipBack = (Storyboard)Resources["sbFlipBack"]; if (flipped) { sbFlipBack.Begin(); flipped = false; } else { sbFlip.Begin(); flipped = true; } } bool reflection = false; private void ReflectionButton_Click(object sender, RoutedEventArgs e) { if (reflection) { reflection = false; redRefelction.Visibility = Visibility.Collapsed; blueRefelction.Visibility = Visibility.Collapsed; } else { reflection = true; redRefelction.Visibility = Visibility.Visible; blueRefelction.Visibility = Visibility.Visible; } } } } UPDATE: I have been testing this some more to try to find out what is causing the issue I am seeing and I believe I found what is causing the issue. Below I have pasted new xaml and code-behind. The new sample below is very similar to the original sample, with a few minor modifications. The xaml basically consists of two stack panels, each containing two borders. The second border in each stack panel is a visual brush (a reflection of the border above it). Now, when I click the "Flip" button, one stack panel gets its ScaleX reduced to zero, while the second stack panel, whose initial ScaleX is zero, gets its ScaleX increased to 1. This animation gives the illusion of flipping. There are also two textblocks which display the scale factor of each stack panel. I added those to try to diagnose my issue. The issue is (as described in the oringal post) that the flipping animation is not smooth. Every time I hit the flip button, the animation starts but whenever the ScaleX factor gets to around .14 to .16, the animation looks like it stalls and the stack panels never have there ScaleX reduced to zero, so they never totally disappear. Now, the strange thing is that if I change the Width/Height properties of the "frontBorder" and "backBorder" borders defined below to use explict values instead of Auto, such as Width=105 and Height=75 (to match the button in the border) everything works fine. The animation stutters the first two or three times I run it but after that the flips are smooth and flawless. (BTW, when an animation is run for the first time, is there something going on in the background, some sort of initialization, that causes it to be a little slow the first time?) Is it possible that the Auto Width/Height of the borders are causing the issue? I can reproduce it everytime but I am not sure why Auto Width/Height would be a problem. Below is the sample. Thanks for the help. <Window x:Class="FlipTest.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Window.Resources> <Storyboard x:Key="sbFlip"> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="front" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.5" Value="0"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00.5" Storyboard.TargetName="back" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.5" Value="1"/> </DoubleAnimationUsingKeyFrames> </Storyboard> <Storyboard x:Key="sbFlipBack"> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="back" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.5" Value="0"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00.5" Storyboard.TargetName="front" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.5" Value="1"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </Window.Resources> <Grid x:Name="LayoutRoot" Background="White" ShowGridLines="True"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <StackPanel x:Name="front" RenderTransformOrigin="0.5,0.5"> <StackPanel.RenderTransform> <ScaleTransform/> </StackPanel.RenderTransform> <Border Name="frontBorder" BorderBrush="Yellow" BorderThickness="2" Width="Auto" Height="Auto"> <Button Margin="0" Name="redButton" Height="75" Background="Red" Width="105" Click="FlipButton_Click"/> </Border> <Border Width="{Binding ElementName=frontBorder, Path=ActualWidth}" Height="{Binding ElementName=frontBorder, Path=ActualHeight}" Opacity="0.2" BorderBrush="Transparent"> <Border.OpacityMask> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Offset="0" Color="Black"/> <GradientStop Offset=".6" Color="Transparent"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Border.OpacityMask> <Border.Background> <VisualBrush Visual="{Binding ElementName=frontBorder}"> <VisualBrush.Transform> <ScaleTransform ScaleX="1" ScaleY="-1" CenterX="52.5" CenterY="37.5" /> </VisualBrush.Transform> </VisualBrush> </Border.Background> </Border> </StackPanel> <StackPanel x:Name="back" RenderTransformOrigin="0.5,0.5"> <StackPanel.RenderTransform> <ScaleTransform ScaleX="0"/> </StackPanel.RenderTransform> <Border Name="backBorder" BorderBrush="Yellow" BorderThickness="2" Width="Auto" Height="Auto"> <Button Margin="0" Width="105" Background="Blue" Name="blueButton" Height="75" Click="FlipButton_Click"/> </Border> <Border Width="{Binding ElementName=backBorder, Path=ActualWidth}" Height="{Binding ElementName=backBorder, Path=ActualHeight}" Opacity="0.2" BorderBrush="Transparent"> <Border.OpacityMask> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Offset="0" Color="Black"/> <GradientStop Offset=".6" Color="Transparent"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Border.OpacityMask> <Border.Background> <VisualBrush Visual="{Binding ElementName=backBorder}"> <VisualBrush.Transform> <ScaleTransform ScaleX="1" ScaleY="-1" CenterX="52.5" CenterY="37.5" /> </VisualBrush.Transform> </VisualBrush> </Border.Background> </Border> </StackPanel> <Button Grid.Row="1" Click="FlipButton_Click" Height="19.45" HorizontalAlignment="Left" VerticalAlignment="Top" Width="76">Flip</Button> <TextBlock Grid.Row="2" Grid.Column="0" Foreground="DarkRed" Height="19.45" HorizontalAlignment="Left" VerticalAlignment="Top" Width="76" Text="{Binding ElementName=front, Path=(UIElement.RenderTransform).(ScaleTransform.ScaleX)}"/> <TextBlock Grid.Row="3" Grid.Column="0" Foreground="DarkBlue" Height="19.45" HorizontalAlignment="Left" VerticalAlignment="Top" Width="76" Text="{Binding ElementName=back, Path=(UIElement.RenderTransform).(ScaleTransform.ScaleX)}"/> </Grid> </Window> Code-behind: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.Windows.Media.Animation; namespace FlipTest { /// <summary> /// Interaction logic for Window1.xaml /// </summary> public partial class Window1 : Window { public Window1() { InitializeComponent(); } bool flipped = false; private void FlipButton_Click(object sender, RoutedEventArgs e) { Storyboard sbFlip = (Storyboard)Resources["sbFlip"]; Storyboard sbFlipBack = (Storyboard)Resources["sbFlipBack"]; if (flipped) { sbFlipBack.Begin(); flipped = false; } else { sbFlip.Begin(); flipped = true; } } } }

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• Wpf Combobox in Master/Detail MVVM

  - by isak

  I have MVVM master /details like this: <Window.Resources> <DataTemplate DataType="{x:Type model:EveryDay}"> <views:EveryDayView/> </DataTemplate> <DataTemplate DataType="{x:Type model:EveryMonth}"> <views:EveryMonthView/> </DataTemplate> </Window.Resources> <Grid> <ListBox Margin="12,24,0,35" Name="schedules" IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding Path=Elements}" SelectedItem="{Binding Path=CurrentElement}" DisplayMemberPath="Name" HorizontalAlignment="Left" Width="120"/> <ContentControl Margin="168,86,32,35" Name="contentControl1" Content="{Binding Path=CurrentElement.Schedule}" /> <ComboBox Height="23" Margin="188,24,51,0" Name="comboBox1" VerticalAlignment="Top" IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding Path=Schedules}" SelectedItem="{Binding Path=CurrentElement.Schedule}" DisplayMemberPath="Name" SelectedValuePath="ID" SelectedValue="{Binding Path=CurrentElement.Schedule.ID}" /> </Grid> This Window has DataContext class: public class MainViewModel : INotifyPropertyChanged { public MainViewModel() { _elements.Add(new Element("first", new EveryDay("First EveryDay object"))); _elements.Add(new Element("second", new EveryMonth("Every Month object"))); _elements.Add(new Element("third", new EveryDay("Second EveryDay object"))); _schedules.Add(new EveryDay()); _schedules.Add(new EveryMonth()); } private ObservableCollection<ScheduleBase> _schedules = new ObservableCollection<ScheduleBase>(); public ObservableCollection<ScheduleBase> Schedules { get { return _schedules; } set { _schedules = value; this.OnPropertyChanged("Schedules"); } } private Element _currentElement = null; public Element CurrentElement { get { return this._currentElement; } set { this._currentElement = value; this.OnPropertyChanged("CurrentElement"); } } private ObservableCollection<Element> _elements = new ObservableCollection<Element>(); public ObservableCollection<Element> Elements { get { return _elements; } set { _elements = value; this.OnPropertyChanged("Elements"); } } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs(propertyName)); } } #endregion } One of Views: <UserControl x:Class="Views.EveryDayView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" > <Grid > <GroupBox Header="Every Day Data" Name="groupBox1" VerticalAlignment="Top"> <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <TextBox Name="textBox2" Text="{Binding Path=AnyDayData}" /> </Grid> </GroupBox> </Grid> I have problem with SelectedItem in ComboBox.It doesn't works correctly.

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• Can't cast treeviewitem as treeviewitem in wpf

  - by phenevo

  Hi, I've got webservice asmx, and there are classes: Country public string Name {get;set;} public string Code {get;set;} public List<Area> Areas {get;set;} Area public string Name {get;set;} public string Code {get;set;} public List<Regions> Provinces {get;set;} Provinces public string Name {get;set;} public string Code {get;set;} I bind it to mz TreeView WPF: Country[] items = new MyService().GetListOfCountries(); structureTree.ItemsSource = items; Code of myTree: <UserControl x:Class="ObjectsAndZonesSimpleTree" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" <Grid> <StackPanel Name="stackPanel1"> <GroupBox Header="Choose" Height="354" Name="groupBox1" Width="Auto"> <TreeView Name="structureTree" SelectedItemChanged="structureTree_SelectedItemChanged" Grid.Row="0" Grid.Column="0" ItemsSource="{Binding}" Height="334" ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Visible" Width="Auto" PreviewMouseRightButtonUp="structureTree_PreviewMouseRightButtonUp" FontFamily="Verdana" FontSize="12" BorderThickness="1" MinHeight="0" Padding="1" Cursor="Hand" Margin="-1"> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type MyService:Country}" ItemsSource="{Binding Path=ListOfRegions}"> <StackPanel Orientation="Horizontal"> <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="{x:Type MyService:Region}" ItemsSource="{Binding Path=Provinces}"> <StackPanel Orientation="Horizontal"> <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/> </StackPanel> </HierarchicalDataTemplate> <DataTemplate DataType="{x:Type MyService:Province}" ItemsSource="{Binding Path=ListOfCities}"> <StackPanel Orientation="Horizontal"> <TextBlock TextAlignment="Justify" VerticalAlignment="Center" Text="{Binding Path=Name}"/> </StackPanel> </DataTemplate> </TreeView.Resources> </TreeView> </GroupBox> </StackPanel> </Grid> </UserControl> This gives me null: private void structureTree_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e) { TreeViewItem treeViewItem = structureTree.SelectedItem as TreeViewItem; }

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• WCF MaxReceivedMessageSize property not taking

  - by Steve Syfuhs

  Searched with no luck... I keep getting The maximum message size quota for incoming messages (65536) has been exceeded. To increase the quota, use the MaxReceivedMessageSize property on the appropriate binding element. It makes sense, so I go into both Server and client config and make the change: Client <system.serviceModel> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_IFileUpload" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" transferMode="Streamed" messageEncoding="Text" maxBufferSize="65536" maxReceivedMessageSize="67108864"> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="http://localhost/services/FileUpload.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IFileUpload" contract="CFTW.FileUpload.IFileUpload" name="BasicHttpBinding_IFileUpload" /> </client> </system.serviceModel> Server <system.serviceModel> <behaviors> <serviceBehaviors> <behavior name=""> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_IFileUpload" transferMode="Streamed" messageEncoding="Text" maxBufferSize="67108864" maxBufferPoolSize="67108864" maxReceivedMessageSize="67108864"> </binding> </basicHttpBinding> </bindings> <services> <service name="BasicHttpBinding_IFileUpload"> <endpoint address="~/services/FileUpload.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IFileUpload" contract="CFTW.FileUpload.IFileUpload"></endpoint> </service> </services> <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> </system.serviceModel> I'm not sure why it's not working (otherwise I'd fix it:)). It's running on .NET 4.0 RC.

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• Windows Service Hosting WCF Objects over SSL (https) - Custom JSON Error Handling Doesn't Work

  - by bpatrick100

  I will first show the code that works in a non-ssl (http) environment. This code uses a custom json error handler, and all errors thrown, do get bubbled up to the client javascript (ajax). // Create webservice endpoint WebHttpBinding binding = new WebHttpBinding(); ServiceEndpoint serviceEndPoint = new ServiceEndpoint(ContractDescription.GetContract(Type.GetType(svcHost.serviceContract + ", " + svcHost.assemblyName)), binding, new EndpointAddress(svcHost.hostUrl)); // Add exception handler serviceEndPoint.Behaviors.Add(new FaultingWebHttpBehavior()); // Create host and add webservice endpoint WebServiceHost webServiceHost = new WebServiceHost(svcHost.obj, new Uri(svcHost.hostUrl)); webServiceHost.Description.Endpoints.Add(serviceEndPoint); webServiceHost.Open(); I'll also show you what the FaultingWebHttpBehavior class looks like: public class FaultingWebHttpBehavior : WebHttpBehavior { public FaultingWebHttpBehavior() { } protected override void AddServerErrorHandlers(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) { endpointDispatcher.ChannelDispatcher.ErrorHandlers.Clear(); endpointDispatcher.ChannelDispatcher.ErrorHandlers.Add(new ErrorHandler()); } public class ErrorHandler : IErrorHandler { public bool HandleError(Exception error) { return true; } public void ProvideFault(Exception error, MessageVersion version, ref Message fault) { // Build an object to return a json serialized exception GeneralFault generalFault = new GeneralFault(); generalFault.BaseType = "Exception"; generalFault.Type = error.GetType().ToString(); generalFault.Message = error.Message; // Create the fault object to return to the client fault = Message.CreateMessage(version, "", generalFault, new DataContractJsonSerializer(typeof(GeneralFault))); WebBodyFormatMessageProperty wbf = new WebBodyFormatMessageProperty(WebContentFormat.Json); fault.Properties.Add(WebBodyFormatMessageProperty.Name, wbf); } } } [DataContract] public class GeneralFault { [DataMember] public string BaseType; [DataMember] public string Type; [DataMember] public string Message; } The AddServerErrorHandlers() method gets called automatically, once webServiceHost.Open() gets called. This sets up the custom json error handler, and life is good :-) The problem comes, when we switch to and SSL (https) environment. I'll now show you endpoint creation code for SSL: // Create webservice endpoint WebHttpBinding binding = new WebHttpBinding(); ServiceEndpoint serviceEndPoint = new ServiceEndpoint(ContractDescription.GetContract(Type.GetType(svcHost.serviceContract + ", " + svcHost.assemblyName)), binding, new EndpointAddress(svcHost.hostUrl)); // This exception handler code below (FaultingWebHttpBehavior) doesn't work with SSL communication for some reason, need to resarch... // Add exception handler serviceEndPoint.Behaviors.Add(new FaultingWebHttpBehavior()); //Add Https Endpoint WebServiceHost webServiceHost = new WebServiceHost(svcHost.obj, new Uri(svcHost.hostUrl)); binding.Security.Mode = WebHttpSecurityMode.Transport; binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None; webServiceHost.AddServiceEndpoint(svcHost.serviceContract, binding, string.Empty); Now, with this SSL endpoint code, the service starts up correctly, and wcf hosted objects can be communicated with just fine via client javascript. However, the custom error handler doesn't work. The reason is, the AddServerErrorHandlers() method never gets called when webServiceHost.Open() is run. So, can anyone tell me what is wrong with this picture? And why, is AddServerErrorHandlers() not getting called automatically, like it does when I'm using non-ssl endpoints? Thanks!

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• Displaying FontFamily in Combobox

  - by Torsten

  Hi. My goal is to manipulate the text-styles of my application via DependencyProperties. I got a diagram in which the texts are to be manipulated in size, fontfamily, color, etc. So I'd like to use an interface similar to a rich text editor like Word. I'm using this code in my TextStyleVM http://shevaspace.blogspot.com/2006/12/i-have-some-fun-with-formattedtext_14.html So I have a FontFamilyProperty and a Getter and Setter for it: public static DependencyProperty FontFamilyProperty = DependencyProperty.Register( "FontFamily", typeof(FontFamily), typeof(OutlinedText), new FrameworkPropertyMetadata( SystemFonts.MessageFontFamily, FrameworkPropertyMetadataOptions.AffectsRender | FrameworkPropertyMetadataOptions.AffectsMeasure), new ValidateValueCallback(IsValidFontFamily)); public FontFamily FontFamily { get { return (FontFamily)base.GetValue(FontFamilyProperty); } set { base.SetValue(FontFamilyProperty, value); } } Then there is a ToStyle method, which sets the style for the labels of the diagram, which are to be manipulated: Style style = new Style(); Binding fontFamilyBinding = new Binding("FontFamily"); fontFamilyBinding.Source = this; Setter fontFamilySetter = new Setter(); fontFamilySetter.Property = TextBlock.FontFamilyProperty; fontFamilySetter.Value = fontFamilyBinding; style.Setters.Add(fontFamilySetter); return style; Now this works for a TextBox. The textbox displays the current FontFamily, and if I enter a new, valid FontFamily like Arial into the textbox the FontFamily of the labels are changed. However, what I'd like to have is a combobox, which displays the SystemFonts and where I can choose one FontFamily for my labels. However, the binding doesn't seem to work. Neither the system fonts nor the current fonts of the labels are displayed. The combobox is just empty. This is my xaml: <r:RibbonLabel Content="FontFamily" /> <!--these do not work--> <r:RibbonComboBox SelectedItem="{Binding FontFamily}"/> <r:RibbonComboBox ItemsSource="{Binding FontFamily}"/> <!--this works--> <r:RibbonTextBox Text="{Binding FontFamily}"/> Now, I assume I have to set a different Setter for a ComboBox in the ToStyle Method. But I have no clue, which one. Maybe someting like this: fontFamilySetter.Property = ComboBox.ItemSource; However, if I set that Property, the TextBox still works. So is this the wrong place to start at? I'd also be grateful if someone could hint me to some documentation about using these Style-, Setter-, Binding-key-words, which are used in the ToStyle method, since this is somebody elses code I'm working with.

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• Svcutil generating bad config with multiple endpoints

  - by vfilby

  I have a WCF service that has exposed a soap and an xml endpoint. When I use svcutil to generate the proxy code on the client side the generated configuration contains two endpoints which causes the client to fail. If I edit the web.config file and remove the second endpoint (with the custom binding) all works as expected. Is there a way I can get svcutil to generate a config that just works so that I don't need to hand edit the file everytime? Client-side error: An endpoint configuration section for contract 'MyNamespace.ITestService' could not be loaded because more than one endpoint configuration for that contract was found. Please indicate the preferred endpoint configuration section by name. Svcutil command: svcutil http://api.local/Test.svc /reference:bin\MyNamespace.Interface.dll /config:web.config /mergeConfig /out:"Service References\TestService.cs" /n:*,MyNamespace Generated client config: <system.serviceModel> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_ITestService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="None"> <transport clientCredentialType="None" proxyCredentialType="None" realm="" /> <message clientCredentialType="UserName" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> <customBinding> <binding name="CustomBinding_ITestService"> <textMessageEncoding maxReadPoolSize="64" maxWritePoolSize="16" messageVersion="Soap12" writeEncoding="utf-8"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> </textMessageEncoding> </binding> </customBinding> </bindings> <client> <endpoint address="http://api2.local/Test.svc/soap" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ITestService" contract="MyNamespace.ITestService" name="BasicHttpBinding_ITestService" /> <endpoint binding="customBinding" bindingConfiguration="CustomBinding_ITestService" contract="MyNamespace.ITestService" name="CustomBinding_ITestService" /> </client> </system.serviceModel>

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• WPF TreeView: How to style selected items with rounded corners like in Explorer

  - by Helge Klein

  The selected item in a WPF TreeView has a dark blue background with "sharp" corners. That looks a bit dated today: I would like to change the background to look like in Explorer of Windows 7 (with/without focus): What I tried so far does not remove the original dark blue background but paints a rounded border on top of it so that you see the dark blue color at the edges and at the left side - ugly. Interestingly, when my version does not have the focus, it looks pretty OK: I would like to refrain from redefining the control template as shown here or here. I want to set the minimum required properties to make the selected item look like in Explorer. Alternative: I would also be happy to have the focused selected item look like mine does now when it does not have the focus. When losing the focus, the color should change from blue to grey. Here is my code: <TreeView x:Name="TreeView" ItemsSource="{Binding TopLevelNodes}" VirtualizingStackPanel.IsVirtualizing="True" VirtualizingStackPanel.VirtualizationMode="Recycling"> <TreeView.ItemContainerStyle> <Style TargetType="{x:Type TreeViewItem}"> <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" /> <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" /> <Style.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter Property="BorderBrush" Value="#FF7DA2CE" /> <Setter Property="Background" Value="#FFCCE2FC" /> </Trigger> </Style.Triggers> </Style> </TreeView.ItemContainerStyle> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type viewmodels:ObjectBaseViewModel}" ItemsSource="{Binding Children}"> <Border Name="ItemBorder" CornerRadius="2" Background="{Binding Background, RelativeSource={RelativeSource AncestorType=TreeViewItem}}" BorderBrush="{Binding BorderBrush, RelativeSource={RelativeSource AncestorType=TreeViewItem}}" BorderThickness="1"> <StackPanel Orientation="Horizontal" Margin="2"> <Image Name="icon" Source="/ExplorerTreeView/Images/folder.png"/> <TextBlock Text="{Binding Name}"/> </StackPanel> </Border> </HierarchicalDataTemplate> </TreeView.Resources> </TreeView>

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• How does NameScope in WPF works ?

  - by Nicolas Dorier

  I'm having a strange behavior with NameScopes in WPF, I have created a CustomControl called FadingPopup which is a child class of Window with nothing special inside. <Window.Resources> <local:FadingPopup> <Button Name="prec" Content="ahah"></Button> <Button Content="{Binding ElementName=prec, Path=Content}"></Button> </local:FadingPopup> </Window.Resources> In this snippet, the binding doesn't work (always empty). If I move these buttons from the resources to the content of the window like this : <Window ...> <Button Name="prec" Content="ahah"></Button> <Button Content="{Binding ElementName=prec, Path=Content}"></Button> </Window> The binding works as expected. Now, I have tried a mix between these two snippets : <Window...> <Window.Resources> <local:FadingPopup> <Button Name="prec" Content="Haha"></Button> </local:FadingPopup> </Window.Resources> <Button Content="{Binding ElementName=prec, Path=Content}"></Button> </Window> It works as well. Apparently, if the button prec is in the resources it registers itself in the NameScope of the Window. BUT, it seems that the Binding tries to resolve ElementName with the NameScope of the FadingPopup (which is null), thus the binding doesn't work... My first snipped works well if I specify a NameScope in my class FadingPopup : static FadingPopup() { NameScope.NameScopeProperty.OverrideMetadata(typeof(FadingPopup), new PropertyMetadata(new NameScope())); } But I don't like this solution because I don't understand why, in the first snippet, prec is registered in the NameScope of Window, but ElementName is resolved with the NameScope of FadingGroup (which is null by default)... Does someone can explain to me what is going on ? Why my first snippet doesn't work, if I don't specify a default NameScope for FadingGroup ?

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• How would a php or java client authenticate if I'm using WCF w/ forms auth?

  - by Toran Billups

  I have a generic proof of concept WCF service that is using forms authentication to secure access. All works great when my client is .NET (vb code below) Dim client As SupplierServiceClient = New SupplierServiceClient() client.ClientCredentials.UserName.UserName = "[email protected]" client.ClientCredentials.UserName.Password = "password" Dim SupplierList As List(Of Supplier) = client.GetSuppliers() but as I want this to interop w/ anyone who can do SOAP 1.1/1.2 - how would a PHP or Java client connect? My WCF web.config is listed below (fyi) <system.serviceModel> <services> <service name="SampleApplicationWCF.Library.SupplierService" behaviorConfiguration="NorthwindBehavior"> <endpoint address="" name="wsHttpSupplierService" contract="SampleApplicationWCF.Library.ISupplierService" binding="wsHttpBinding" bindingConfiguration="wsHttp"/> <endpoint address="https://server/SampleApplicationWCF/SupplierService.svc/Basic" name="basicHttpSupplierService" contract="SampleApplicationWCF.Library.ISupplierService" binding="basicHttpBinding" bindingConfiguration="basicHttp"/> <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex"/> </service> </services> <bindings> <wsHttpBinding> <binding name="wsHttp"> <security mode="TransportWithMessageCredential"> <transport/> <message clientCredentialType="UserName" negotiateServiceCredential="false" establishSecurityContext="true"/> </security> </binding> </wsHttpBinding> <basicHttpBinding> <binding name="basicHttp"> <security mode="TransportWithMessageCredential"> <transport/> <message clientCredentialType="UserName"/> </security> </binding> </basicHttpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="NorthwindBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceAuthorization principalPermissionMode="UseAspNetRoles"/> <serviceCredentials> <userNameAuthentication userNamePasswordValidationMode="MembershipProvider"/> </serviceCredentials> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel>

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• Not able to select a row in my ListView

  - by Krishna Thota

  I'm not able to select a row in my list Item Here is my code <Grid DockPanel.Dock="Left" MinWidth="250"> <ListView x:Name="ListVendors" ItemsSource="{Binding SourceCollection}"> <ListView.View> <GridView> <GridView.ColumnHeaderContainerStyle> <Style><Setter Property="FrameworkElement.Visibility" Value="Collapsed"/></Style> </GridView.ColumnHeaderContainerStyle> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Text="{Binding Name}" FontSize="20"/> <TextBlock Grid.Row="1" Text="{Binding Code}" Foreground="Gray" /> <TextBlock Grid.Row="2" Text="{Binding ContactNo}" Foreground="Gray" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <Grid.RowDefinitions> <RowDefinition /> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Text="{Binding Path=Address, Converter={StaticResource addNewLineConv}}" Grid.RowSpan="3" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <Grid.RowDefinitions> <RowDefinition /> </Grid.RowDefinitions> <TextBlock Grid.Row="2" Text="{Binding Email}"/> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn DisplayMemberBinding="{Binding Email}" Header="Email"/> </GridView> </ListView.View> </ListView> How can I select a row in this ListView?

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• data validation on wpf passwordbox:type password, re-type password

  - by black sensei

  Hello Experts !! I've built a wpf windows application in with there is a registration form. Using IDataErrorInfo i could successfully bind the field to a class property and with the help of styles display meaningful information about the error to users.About the submit button i use the MultiDataTrigger with conditions (Based on a post here on stackoverflow).All went well. Now i need to do the same for the passwordbox and apparently it's not as straight forward.I found on wpftutorial an article and gave it a try but for some reason it wasn't working. i've tried another one from functionalfun. And in this Functionalfun case the properties(databind,databound) are not recognized as dependencyproperty even after i've changed their name as suggested somewhere in the comments plus i don't have an idea whether it will work for a windows application, since it's designed for web. to give you an idea here is some code on textboxes <Window.Resources> <data:General x:Key="recharge" /> <Style x:Key="validButton" TargetType="{x:Type Button}" BasedOn="{StaticResource {x:Type Button}}" > <Setter Property="IsEnabled" Value="False"/> <Style.Triggers> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding ElementName=txtRecharge, Path=(Validation.HasError)}" Value="false" /> </MultiDataTrigger.Conditions> <Setter Property="IsEnabled" Value="True" /> </MultiDataTrigger> </Style.Triggers> </Style> <Style x:Key="txtboxerrors" TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}"> <Style.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/> <Setter Property="Validation.ErrorTemplate"> <Setter.Value> <ControlTemplate> <DockPanel LastChildFill="True"> <TextBlock DockPanel.Dock="Bottom" FontSize="8" FontWeight="ExtraBold" Foreground="red" Padding="5 0 0 0" Text="{Binding ElementName=showerror, Path=AdornedElement.(Validation.Errors)[0].ErrorContent}"></TextBlock> <Border BorderBrush="Red" BorderThickness="2"> <AdornedElementPlaceholder Name="showerror" /> </Border> </DockPanel> </ControlTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style> </Window.Resources> <TextBox Margin="12,69,12,70" Name="txtRecharge" Style="{StaticResource txtboxerrors}"> <TextBox.Text> <Binding Path="Field" Source="{StaticResource recharge}" ValidatesOnDataErrors="True" UpdateSourceTrigger="PropertyChanged"> <Binding.ValidationRules> <ExceptionValidationRule /> </Binding.ValidationRules> </Binding> </TextBox.Text> </TextBox> <Button Height="23" Margin="98,0,0,12" Name="btnRecharge" VerticalAlignment="Bottom" Click="btnRecharge_Click" HorizontalAlignment="Left" Width="75" Style="{StaticResource validButton}">Recharge</Button> some C# : class General : IDataErrorInfo { private string _field; public string this[string columnName] { get { string result = null; if(columnName == "Field") { if(Util.NullOrEmtpyCheck(this._field)) { result = "Field cannot be Empty"; } } return result; } } public string Error { get { return null; } } public string Field { get { return _field; } set { _field = value; } } } So what are suggestion you guys have for me? I mean how would you go about this? how do you do this since the databinding first purpose here is not to load data onto the fields they are just (for now) for data validation. thanks for reading this.

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• Calling a WCF service from another WCF service

  - by ultraman69

  Hi ! I have a WCF service hosted on a windows service on my Server1. It also has IIS on this machine. I call the service from a web app and it works fine. But within this service, I have to call another WCF sevice (also hosted on a windows service) located on Server2. The security credentials are set to "Message" and "Username". I have an error like "SOAP protcol negociation failed". It's a problem with my server certificate public key that doesn't seem to be recognise. However, if I call the service on the Server2 from Server1 in a console app, it works fine. I followed this tutorial to set up my certificates : http://www.codeproject.com/KB/WCF/wcf_certificates.aspx Here's the config file from my service on Server1 that tries to call the second one : <endpoint address="" binding="wsHttpBinding" contract="Microsoft.ServiceModel.Samples.ITraitement" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services> <client> <endpoint address="http://Server2:8000/servicemodelsamples/service" behaviorConfiguration="myClientBehavior" binding="wsHttpBinding" bindingConfiguration="MybindingCon" contract="Microsoft.ServiceModel.Samples.ICalculator" name=""> <identity> <dns value="ODWCertificatServeur" /> </identity> </endpoint> </client> <bindings> <wsHttpBinding> <binding name="MybindingCon"> <security mode="Message"> <message clientCredentialType="UserName" /> </security> </binding> </wsHttpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="ServiceTraitementBehavior"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="True" /> </behavior> </serviceBehaviors> <endpointBehaviors> <behavior name="myClientBehavior"> <clientCredentials> <clientCertificate findValue="MachineServiceTraitement" x509FindType="FindBySubjectName" storeLocation="LocalMachine" storeName="My" /> <serviceCertificate> <authentication certificateValidationMode="ChainTrust" revocationMode="NoCheck"/> </serviceCertificate> </clientCredentials> </behavior> </endpointBehaviors> </behaviors> And here's the config file from the web app that calls the service on Server1 : <system.serviceModel> <bindings> <wsHttpBinding> <binding name="WSHttpBinding_ITraitement" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> </bindings> <client> <endpoint address="http://localhost:8020/ServiceTraitementPC" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ITraitement" contract="ITraitement" name="WSHttpBinding_ITraitement"> </endpoint> </client> Any idea why it works if if I call it in a console app and not from my service ? Maybe it has something to do with the certificateValidationMode="ChainTrust" ?

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• The model item passed into the dictionary is of type ‘mvc.Models.ModelA’ but this dictionary require

  - by Malcolm Frexner

  I have this annoying mistake in some of my builds. There is no error in the project, because if I build again, then the problem disappears. The message only appears, when the site is deployed to a Windows 2008 Server. I first thought that it might be an issue with temporary files, but thats not the case. I deployed the build to a different web and the error still appears. The error appears on random actions of the site. Most of the time builds are ok, but each 3rd or 4th build produces runtime errors. I build using a WebdeploymentProject in release mode. Views are precompiled. It's not http://stackoverflow.com/questions/178194/in-asp-net-mvc-i-encounter-an-incorrect-type-error-when-rendering-a-page-with-the, because views have totally different names. How I can debug this problem or how I can get help for this? Here is my WebDeploymentProject <!-- Microsoft Visual Studio 2008 Web Deployment Project http://go.microsoft.com/fwlink/?LinkID=104956 --> <Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup> <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> <ProductVersion>9.0.21022</ProductVersion> <SchemaVersion>2.0</SchemaVersion> <ProjectGuid>{E5E14CEB-0BCD-4203-9A5A-34ABA9C717EA}</ProjectGuid> <SourceWebPhysicalPath>..\B2CWeb</SourceWebPhysicalPath> <SourceWebProject>{3E632DB6-6DB3-4BD0-8CCA-12DE67165B48}|B2CWeb\B2CWeb.csproj</SourceWebProject> <SourceWebVirtualPath>/B2CWeb.csproj</SourceWebVirtualPath> <TargetFrameworkVersion>v3.5</TargetFrameworkVersion> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> <DebugSymbols>true</DebugSymbols> <OutputPath>.\Debug</OutputPath> <EnableUpdateable>false</EnableUpdateable> <UseMerge>true</UseMerge> <SingleAssemblyName>B2CWeb_Build</SingleAssemblyName> </PropertyGroup> <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> <DebugSymbols>false</DebugSymbols> <OutputPath>..\B2CWeb_Deploy\</OutputPath> <EnableUpdateable>false</EnableUpdateable> <UseMerge>true</UseMerge> <SingleAssemblyName>B2C_Web</SingleAssemblyName> <ContentAssemblyName> </ContentAssemblyName> <DeleteAppCodeCompiledFiles>false</DeleteAppCodeCompiledFiles> </PropertyGroup> <ItemGroup> </ItemGroup> <Import Project="$(MSBuildExtensionsPath)\Microsoft\WebDeployment\v9.0\Microsoft.WebDeployment.targets" /> <!-- To modify your build process, add your task inside one of the targets below and uncomment it. Other similar extension points exist, see Microsoft.WebDeployment.targets. <Target Name="BeforeBuild"> </Target> <Target Name="BeforeMerge"> </Target> <Target Name="AfterMerge"> </Target> <Target Name="AfterBuild"> </Target> --> </Project>

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• Asp.Net MVC 2 Html.TextBoxFor Best way to specify a format string for a DateTime property of model

  - by Simon Fox

  As the question title explains, what is the best way to specify a format which my Views use when displaying values of a DateTime property via the Html.TextboxFor method. The default display includes the Date and Time where I really only want the Date displayed. Thanks

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• ASPNET MVC - Override Html.TextBoxFor(model.property) with a new helper with same signature?

  - by JK

  I want to override Html.TextBoxFor() with my own helper that has the exact same signature (but a different namespace of course) - is this possible, and if so, how? The reason for this is that I have 100+ views in an already existing app, and I want to change the behaviour of TextBoxFor so that it outputs a maxLength=n attribute if the property has a [StringLength(n)] annotation. The code for automatically outputting maxlength=n is in this question: http://stackoverflow.com/questions/2386365/maxlength-attribute-of-a-text-box-from-the-dataannotations-stringlength-in-mvc2. But my question is not a duplicate - I am trying creating a more generic solution: where the DataAnnotaion flows into the html automatically without any need for additional code by the person writing the view. In the referenced question, you have to change every single Html.TexBoxFor to a Html.CustomTextBoxFor. I need to do it so that the existing TextBoxFor()'s do not need to be changed - hence creating a helper with the same signature: change the behaviour of the helper method, and all existing instances will just work without any changes (100+ views, at least 500 TextBoxFor()s - don't want to manually edit that). I tried this code: (And I need to repeat it for each overload of TextBoxFor, but once the root problem is solved, that will be trivial) namespace My.Helpers { public static class CustomTextBoxHelper { public static MvcHtmlString TextBoxFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, object htmlAttributes, bool includeLengthIfAnnotated) { // implementation here } } } But I am getting a compiler error in the view on Html.TextBoxFor(): "The call is ambiguous between the following methods or properties" (of course). Is there any way to do this? Is there an alternative approach that would allow me to change the behaviour of Html.TextBoxFor, so that the views that already use it do not need to be changed?

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• How to update model in the database, from asp.net MVC2, using Entity Framework?

  - by Eedoh

  Hello. I'm building ASP.NET MVC2 application, and using Entity Framework as ORM. I am having troubles updating object in the database. Every time I try entity.SaveChanges(), EF inserts new line in the table, regardless of do I want update, or insert to be done. I tried attaching (like in this next example) object to entity, but then I got {"An object with a null EntityKey value cannot be attached to an object context."} Here's my simple function for inserts and updates (it's not really about vehicles, but it's simpler to explain like this, although I don't think that this effects answers at all)... public static void InsertOrUpdateCar(this Vehicles entity, Cars car) { if (car.Id == 0 || car.Id == null) { entity.Cars.AddObject(car); } else { entity.Attach(car); } entitet.SaveChanges(); } I even tried using AttachTo("Cars", car), but I got the same exception. Anyone has experience with this?

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• Asp.Net MVC EnableClientValidation doesnt work.

  - by Farrell

  I want as well as Client Side Validation as Server Side Validation. I realized this as the following: Model: ( The model has a DataModel(dbml) which contains the Test class ) namespace MyProject.TestProject { [MetadataType(typeof(TestMetaData))] public partial class Test { } public class TestMetaData { [Required(ErrorMessage="Please enter a name.")] [StringLength(50)] public string Name { get; set; } } } Controller is nothing special. The View: <% Html.EnableClientValidation(); %> <% using (Ajax.BeginForm("Index", "Test", FormMethod.Post, new AjaxOptions {}, new { enctype = "multipart/form-data" })) {%> <%= Html.AntiForgeryToken()%> <fieldset> <legend>Widget Omschrijving</legend> <div> <%= Html.LabelFor(Model => Model.Name) %> <%= Html.TextBoxFor(Model => Model.Name) %> <%= Html.ValidationMessageFor(Model => Model.Name) %> </div> </fieldset> <div> <input type="submit" value="Save" /> </div> <% } %> To make this all work I added also references to js files: <script src="../../Scripts/MicrosoftAjax.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftMvcAjax.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftMvcValidation.js" type="text/javascript"></script> <script src="../../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script> Eventually it has to work, but it doesnt work 100%: It does validates with no page refresh after pressing the button. It also does "half" Client Side Validation. Only when you type some text into the textbox and then backspace the typed text. The Client Side Validation appears. But when I try this by tapping between controls there's no Client Side Validation. Do I miss some reference or something? (I use Asp.Net MVC 2 RTM)

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• MVC2 Client validation with Annotations in View with RenderAction

  - by Olle

  I'm having problem with client side validation on a View that renders a dropdownlist with help of a Html.RenderAction. I have two controllers. SpecieController and CatchController and I've created ViewModels for my views. I want to keep it as DRY as possible and I will most probably need a DropDownList for all Specie elsewhere in the near future. When I create a Catch i need to set a relationship to one specie, I do this with an id that I get from the DropDownList of Species. ViewModels.Catch.Create [Required] public int Length { get; set; } [Required] public int Weight { get; set; } [Required] [Range(1, int.MaxValue)] public int SpecieId { get; set; } ViewModels.Specie.List public DropDownList(IEnumerable<SelectListItem> species) { this.Species = species; } public IEnumerable<SelectListItem> Species { get; private set; } My View for the Catch.Create action uses the ViewModels.Catch.Create as a model. But it feels that I'm missing something in the implemetation. What I want in my head is to connect the selected value in the DropDownList that comes from the RenderAction to my SpecieId. View.Catch.Create <div class="editor-label"> <%: Html.LabelFor(model => model.SpecieId) %> </div> <div class="editor-field"> <%-- Before DRY refactoring, works like I want but not DRY <%: Html.DropDownListFor(model => model.SpecieId, Model.Species) %> --%> <% Html.RenderAction("DropDownList", "Specie"); %> <%: Html.ValidationMessageFor(model => model.SpecieId) %> </div> CatchController.Create [HttpPost] public ActionResult Create(ViewModels.CatchModels.Create myCatch) { if (ModelState.IsValid) { // Can we make this StronglyTyped? int specieId = int.Parse(Request["Species"]); // Save to db Catch newCatch = new Catch(); newCatch.Length = myCatch.Length; newCatch.Weight = myCatch.Weight; newCatch.Specie = SpecieService.GetById(specieId); newCatch.User = UserService.GetUserByUsername(User.Identity.Name); CatchService.Save(newCatch); } This scenario works but not as smooth as i want. ClientSide validation does not work for SpecieId (after i refactored), I see why but don't know how I can ix it. Can I "glue" the DropDownList SelectedValue into myCatch so I don't need to get the value from Request["Species"] Thanks in advance for taking your time on this.

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• WCF Error: the client and service bindings may be mismatched?

  - by Rev

  Hi let see server config and client config. Then help me find difference between these configs!! Client config <system.serviceModel> <client> <endpoint address="http://localhost/admin2/AdminCentralService.svc" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_Config" contract="TIR.ThreeTier.ICommandInvoker" name="AdminCentralServiceConfig" /> <endpoint binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_Config" contract="TIR.ThreeTier.ICommandInvoker" name="CommandInvokerConfig" /> </client> <bindings> <wsHttpBinding> <binding name="WSHttpBinding_Config" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Mtom" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> </bindings> Server Config <system.serviceModel> <behaviors> <serviceBehaviors> <behavior name="AdminCentral.Business.Web.Service1Behavior"> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> <bindings> <wsHttpBinding> <binding name="WSHttpBinding_Config" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Mtom" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false"/> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm=""/> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true"/> </security> </binding> </wsHttpBinding> </bindings> <services> <service behaviorConfiguration="AdminCentral.Business.Web.Service1Behavior" name="AdminCentral.Business.Web.AdminCentralService"> <endpoint address="" binding="wsHttpBinding" contract="AdminCentral.Business.Web.ICommandInvoker"> <identity> <dns value="localhost" /> </identity> </endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services>

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• Asp.Net MVC - Rob Conery's LazyList - Count() or Count

  - by Adam

  I'm trying to create an html table for order logs for customers. A customer is defined as (I've left out a lot of stuff): public class Customer { public LazyList<Order> Orders { get; set; } } The LazyList is set when fetching a Customer: public Customer GetCustomer(int custID) { Customer c = ... c.Orders = new LazyList<Order>(_repository.GetOrders().ByOrderID(custID)); return c; } The order log model: public class OrderLogTableModel { public OrderLogTableModel(LazyList<Order> orders) { Orders = orders; Page = 0; PageSize = 25; } public LazyList<Order> Orders { get; set; } public int Page { get; set; } public int PageSize { get; set; } } and I pass in the customer.Orders after loading a customer. Now the log i'm trying to make, looks something like: <table> <tbody> <% int rowCount = ViewData.Model.Orders.Count(); int innerRows = rowCount - (ViewData.Model.Page * ViewData.Model.PageSize); foreach (Order order in ViewData.Model.Orders.OrderByDescending(x => x.StartDateTime) .Take(innerRows).OrderBy(x => x.StartDateTime) .Take(ViewData.Model.PageSize)) { %> <tr> <td> <%= order.ID %> </td> </tr> <% } %> </tbody> </table> Which works fine. But the problem is evaluating ViewData.Model.Orders.Count() literally takes about 10 minutes. I've tried with the ViewData.Model.Orders.Count property instead, and the results are the same - takes forever. I've also tried calling _repository.GetOrders().ByCustomerID(custID).Count() directly from the view and that executes perfectly within a few ms. Can anybody see any reason why using the LazyList to get a simple count would take so long? It seems like its trying to iterate through the list when getting a simple count.

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