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  • Binding to a dictionary in Silverlight with INotifyPropertyChanged

    - by rip
    In silverlight, I can not get INotifyPropertyChanged to work like I want it to when binding to a dictionary. In the example below, the page binds to the dictionary okay but when I change the content of one of the textboxes the CustomProperties property setter is not called. The CustomProperties property setter is only called when CustomProperties is set and not when the values within it are set. I am trying to do some validation on the dictionary values and so am looking to run some code when each value within the dictionary is changed. Is there anything I can do here? C# public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); MyEntity ent = new MyEntity(); ent.CustomProperties.Add("Title", "Mr"); ent.CustomProperties.Add("FirstName", "John"); ent.CustomProperties.Add("Name", "Smith"); this.DataContext = ent; } } public class MyEntity : INotifyPropertyChanged { public event PropertyChangedEventHandler System.ComponentModel.INotifyPropertyChanged.PropertyChanged; public delegate void PropertyChangedEventHandler(object sender, System.ComponentModel.PropertyChangedEventArgs e); private Dictionary<string, object> _customProps; public Dictionary<string, object> CustomProperties { get { if (_customProps == null) { _customProps = new Dictionary<string, object>(); } return _customProps; } set { _customProps = value; if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs("CustomProperties")); } } } } VB Partial Public Class MainPage Inherits UserControl Public Sub New() InitializeComponent() Dim ent As New MyEntity ent.CustomProperties.Add("Title", "Mr") ent.CustomProperties.Add("FirstName", "John") ent.CustomProperties.Add("Name", "Smith") Me.DataContext = ent End Sub End Class Public Class MyEntity Implements INotifyPropertyChanged Public Event PropertyChanged(ByVal sender As Object, ByVal e As System.ComponentModel.PropertyChangedEventArgs) Implements System.ComponentModel.INotifyPropertyChanged.PropertyChanged Private _customProps As Dictionary(Of String, Object) Public Property CustomProperties As Dictionary(Of String, Object) Get If _customProps Is Nothing Then _customProps = New Dictionary(Of String, Object) End If Return _customProps End Get Set(ByVal value As Dictionary(Of String, Object)) _customProps = value RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("CustomProperties")) End Set End Property End Class Xaml <TextBox Height="23" Name="TextBox1" Text="{Binding Path=CustomProperties[Title], Mode=TwoWay}" /> <TextBox Height="23" Name="TextBox2" Text="{Binding Path=CustomProperties[FirstName], Mode=TwoWay}" /> <TextBox Height="23" Name="TextBox3" Text="{Binding Path=CustomProperties[Name], Mode=TwoWay}" />

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  • WPF: Binding to commands in code behind

    - by sofri
    Hi, I have an WPF Microsoft Surface Applikation and I'm using MVVM-Pattern. I have some buttons that are created in code behind. And I would like to bind commands to them but I only know how that works in the XAML like this: <Custom:SurfaceButton Command="{Binding SaveReservationCommandBinding, Mode=OneWay}"/> But I cannot do it like this because my buttons do not exist in the XAML, only in the code behind. So how would a command binding like that works in code behind?

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  • C# WCF client configuration for X509 secured web service over https

    - by Kam
    Hi guys I been pulling my hair out for the past few days trying to connect to a web service using .Net 3.5 and WCF (have also tried using WSE 3.0) without much luck. The web service is hosted by a 3rd party and we can access via https. They also make use of X509 certificates for security, to sign the message. I've been given some basic info and am able to connect and test the service using SOAP UI 3.5 without any problems, so we know that this is not the issue. Just trying to get it done in code! I've added the X509 certificate into the certificate store using the mmc snap-in, and using tracing and logging i can see that the message is being signed, just unable to see which part i have got wrong. Any healp GREATLY appreciated :) I've been given an offline WSDL file, which I have imported in as a service reference is VS 2008. My calling code looks like so, simple enough: ServicePointManager.ServerCertificateValidationCallback = delegate(object sender,X509Certificate certificate,X509Chain chain, SslPolicyErrors sslErrors) { return true; }; GatewayClient gateway = new GatewayClient(); CheckStatusResponse response = gateway.CheckLineStatus(); And my config looks like so: <basicHttpBinding> <binding name="Gateway_1.0" 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="TransportWithMessageCredential"> <transport clientCredentialType="None" proxyCredentialType="None" realm="" /> <message clientCredentialType="Certificate" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> <customBinding> <binding name="Gateway_1"> <security authenticationMode="CertificateOverTransport" includeTimestamp="true" messageProtectionOrder="SignBeforeEncrypt"> <localClientSettings maxClockSkew="12:00:00" replayWindow="12:00:00" sessionKeyRolloverInterval="12:00:00" timestampValidityDuration="12:00:00" /> <localServiceSettings maxClockSkew="12:00:00" sessionKeyRolloverInterval="12:00:00" timestampValidityDuration="12:00:00" /> <secureConversationBootstrap /> </security> <textMessageEncoding messageVersion="Soap11" /> <sslStreamSecurity requireClientCertificate="true" /> <httpsTransport hostNameComparisonMode="WeakWildcard" /> </binding> </customBinding> <wsHttpBinding> <binding name="Gateway_1" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <security mode="TransportWithMessageCredential"> <message clientCredentialType="Certificate" negotiateServiceCredential="false" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> </bindings> <client> <endpoint address="https://XXX.XX.XXX.XX/SOAP" behaviorConfiguration="ClientCertificateBehavior" binding="wsHttpBinding" bindingConfiguration="Gateway_1" contract="B2BService.Gateway" name="Gateway_1_HTTPSPort"> <identity> <dns value="ext.test.com" /> </identity> </endpoint> </client> <behaviors> <endpointBehaviors> <behavior name="ClientCertificateBehavior"> <clientCredentials> <clientCertificate findValue="mycertificate.com" storeLocation="CurrentUser" storeName="Root" x509FindType="FindBySubjectName" /> <serviceCertificate> <authentication certificateValidationMode="PeerOrChainTrust" /> </serviceCertificate> </clientCredentials> </behavior> </endpointBehaviors> </behaviors> </system.serviceModel> Regardless of which config I use, the code fails for one reason or another, causing internal server errors, Error processing message for security, Undefined 'badEncoding' resource property, or expected http URI given https, and a few other! Been going round and round a bit, and I am sure it is very simple once the cofig is set :( I'm sure I've missed loads out, let me know if seeing the SOAP UI generated envelope and the currect WCF generated envelope will help. many thanks. Kam

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  • In Haskell, what does it mean if a binding "shadows an existing binding"?

    - by Alistair
    I'm getting a warning from GHC when I compile: Warning: This binding for 'pats' shadows an existing binding in the definition of 'match_ignore_ancs' Here's the function: match_ignore_ancs (TextPat _ c) (Text t) = c t match_ignore_ancs (TextPat _ _) (Element _ _ _) = False match_ignore_ancs (ElemPat _ _ _) (Text t) = False match_ignore_ancs (ElemPat _ c pats) (Element t avs xs) = c t avs && match_pats pats xs Any idea what this means and how I can fix it? Cheers.

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  • Two way binding settings problem.

    - by Jamie
    Hi, I am having a problem using two way binding with a listpicker. I am able to set the value using c# but not in the SelectedItem=".." in xaml. The binding is returning the correct value (and is a value in the listpicker) as i have texted it by assigning the text to a textblock. When the page loads, the binding used on the listpicker causes a System.ArgumentOutOfRangeException The code i am using to set it is: // Update a setting value. If the setting does not exist, add the setting. public bool AddOrUpdateValue(string key, Object value) { bool valueChanged = false; try { // If new value is different, set the new value if (settingsStorage[key] != value) { settingsStorage[key] = value; valueChanged = true; } } catch (KeyNotFoundException) { settingsStorage.Add(key, value); valueChanged = true; } catch (ArgumentException) { settingsStorage.Add(key, value); valueChanged = true; } catch (Exception e) { Console.WriteLine("Exception occured whilst using IsolatedStorageSettings: " + e.ToString()); } return valueChanged; } // Get the current value of the setting, if not found, set the setting to default value. public valueType GetValueOrDefault<valueType>(string key, valueType defaultValue) { valueType value; try { value = (valueType)settingsStorage[key]; } catch (KeyNotFoundException) { value = defaultValue; } catch (ArgumentException) { value = defaultValue; } return value; } public string WeekBeginsSetting { get { return GetValueOrDefault<string>(WeekBeginsSettingKeyName, WeekBeginsSettingDefault); } set { AddOrUpdateValue(WeekBeginsSettingKeyName, value); Save(); } } And in the xaml: <toolkit:ListPicker x:Name="WeekStartDay" Header="Week begins on" SelectedItem="{Binding Source={StaticResource AppSettings}, Path=WeekBeginsSetting, Mode=TwoWay}"> <sys:String>monday</sys:String> <sys:String>sunday</sys:String> </toolkit:ListPicker> The StaticResource AppSettings is a resource from a seperate .cs file. <phone:PhoneApplicationPage.Resources> <local:ApplicationSettings x:Key="AppSettings"></local:ApplicationSettings> </phone:PhoneApplicationPage.Resources> Thanks in advance

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  • Get textbox binding in wpf datagridtemplatecolumn

    - by klawusel
    Hi I have a wpf datagrid containing multiple datagridtemplatecolumns, which all are build up from a datatemplate which contains a textbox. Now I want to get the binding of the textbox (I have a reference to the template column which textbox's binding I woukld like to determine). Alternatively it would be nice to return the X:Name of the template column Any hints? Regards klaus

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  • WPF Inner Property Binding not updating.

    - by Matthew Kruskamp
    I have an INotifyProperty item that I have bound to a wpf control. <local:ScrollingSelector DataContext="{Binding Path=SelectedScreen.VisualizationTypes}" Grid.ColumnSpan="2" Grid.Column="3" Margin="0,0,0,0" Grid.Row="1"/> If I change the SelectedScreen property to a different control the binding still assumes the first control. Why is this? Is there an easy work-around?

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  • Silverlight Two Way Data Binding on Key Up

    - by kouPhax
    Is there a way to fire a two way data bind when the key up event fires in Silverlight. Currently I have to lose focus on the textbox to get the binding to fire. <TextBox x:Name="Filter" KeyUp="Filter_KeyUp" Text="{Binding Path=Filter, Mode=TwoWay }"/>

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  • WCF + Add a Binding Extension via Code

    - by FlySwat
    I'm trying to figure out a way to add a binding extension to an endpoint via code, instead of through configuration files. Ideally I want it to simply be an attribute I place on the service method. So far it seems like the only thing that isn't exposed publicly is the binding extensions.

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  • Add a Binding Extension via Code

    - by FlySwat
    I'm trying to figure out a way to add a binding extension to an endpoint via code, instead of through configuration files. Ideally I want it to simply be an attribute I place on the service method. So far it seems like the only thing that isn't exposed publicly is the binding extensions.

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  • WPF ControlTemplate and Binding

    - by Vinjamuri
    In the below code, MousePressImage is a dependency property of class ButtonControl. The following Binding doesn't work.. Appreciate your help in solving this issue.. Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=MousePressImage}"/> -- I create the ButtonControl like this. <local:ButtonControl Height="48" Width="160" MouseOverImage="pack://application:,,,/Recipe_06_13;component/Resources/Over.bmp" MousePressImage="pack://application:,,,/Recipe_06_13;component/Resources/Press.bmp" DisableImage=" "> </local:ButtonControl>

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  • Force Binding Update Silverlight

    - by Matt
    How can I force my objects DataContext bindings to update? I'm using an event on a grid, and binding updates are not being processed before my event fires. Any cheap tricks to get around this? In the end I can always do things the old manual way of getting the values from my textboxes and updating my object, but it'd be nice to have binding do it for me.

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  • Binding Bitmapimge to Image in Wpf?

    - by Rev
    This is a simple Question (lets see) I want to bind bitmap image to Image. For doing this in cs code u must write this line. this.leftImage.Source = new BitmapImage(new Uri(@"C:\a.bmp")); But I want make Binding from resources. Because In release time resources became part of project.exe file and if you make binding from file(Mean set Image.source with Image file address), you must always put image file in the same address(disaster programing) :)

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  • listbox isSelected databinding in DataTemplate

    - by Kinmarui
    I try to simply databind IsSelected property with IsSelected field in my class. But after I change the value in code its doesn't change the property, neither does clicking on ListBoxItem change the field value. XAML: <FlipView ItemsSource="{Binding Source={StaticResource itemsViewSource}}" ... > <FlipView.ItemTemplate> <DataTemplate> <UserControl Loaded="StartLayoutUpdates" Unloaded="StopLayoutUpdates"> <!-- other controls --> <ListBox Grid.Row="1" Grid.ColumnSpan="3" SelectionMode="Multiple" VerticalAlignment="Center" ItemsSource="{Binding Answers}"> <ListBox.Resources> <local:LogicToText x:Key="logToText" /> </ListBox.Resources> <!-- bind IsSelected only in one way from code to content --> <ItemsControl.ItemTemplate> <DataTemplate> <ListBoxItem IsSelected="{Binding IsSelected, Mode=TwoWay, Converter={StaticResource logToText}}" Content="{Binding IsSelected, Mode=TwoWay, Converter={StaticResource logToText}}"> </ListBoxItem> </DataTemplate> </ItemsControl.ItemTemplate> <!-- not working at all <ListBox.Resources> <Style TargetType="ListBoxItem"> <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}"/> <Setter Property="Content" Value="{Binding IsSelected, Mode=TwoWay}"/> </Style> </ListBox.Resources>--> </ListBox> </UserControl> </DataTemplate> </FlipView.ItemTemplate> </FlipView> Code: Answers private ObservableCollection<PrawoJazdyDataAnswer> _answers = new ObservableCollection<PrawoJazdyDataAnswer>(); public ObservableCollection<PrawoJazdyDataAnswer> Answers { get { return this._answers; } } Single item(Answer) public class PrawoJazdyDataAnswer : NPCHelper// PrawoJazdy.Common.BindableBase { public PrawoJazdyDataAnswer(String ans, bool ansb) { this._ans = ans; this._isSelected = ansb; } public override string ToString() { return _isSelected.ToString(); } //Only For debug purposes normally return _ans; private string _ans; public string Ans { get { return this._ans; } //set { this.SetProperty(ref this._ans, value); } } private bool _isSelected; public bool IsSelected { get { return this._isSelected; } set { _isSelected = value; FirePropertyChanged("IsSelected"); //this.SetProperty(ref this._isSelected, value); } } } FirePropertyChanged public class NPCHelper : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public void FirePropertyChanged(string prop) { if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(prop)); } } Converter(which sometimes seems to be needed and others not..., I tried ~10 approaches from different tutorials/examples) public class LogicToText : IValueConverter { /// <summary> /// /// </summary> public object Convert(object value, Type targetType, object parameter, string language) { //if (value == null || (bool)value == false) // return "False"; return value.ToString(); } /// <summary> /// /// </summary> public object ConvertBack(object value, Type targetType, object parameter, string language) { return value.ToString().Contains("True") ? true : false; } Thanks in advance, and sorry for my English(still learning). @edit Thanks for quick reply. For test purposes i created a button and text block: It's in other controls part (above list box, but in FlipView) <Button Click="spr" >Sprawdz</Button> <TextBlock Text="{Binding Answers[0].IsSelected, Mode=TwoWay}" > </TextBlock> Click method private void spr(object sender, RoutedEventArgs e) { var ans = ((PrawoJazdyDataQuestion)this.flipView.SelectedItem).Answers; foreach (var item in ans) item.IsSelected = item.IsSelected ? false : true; } As I wrote when i'm changing data from code side its change text, but not appearance of ListBoxItem, and if i just select it on ListBox its doesn't change the date i textblock neither in ListBox itself.

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  • Silverlight: Binding to a LayoutRoot value from within a DataTemplate

    - by Rosarch
    I have a DataTemplate for a ListBox, where I have several controls that bind to an item. I would also like to bind to a value on LayoutRoot.DataContext. I'm unsure of how to do this. <!--LayoutRoot is the root grid where all page content is placed--> <StackPanel x:Name="LayoutRoot" Background="Transparent"> <ListBox ItemsSource="{Binding Items}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <TextBlock Text="{Binding}" /> <TextBlock Text="{Binding ElementName=LayoutRoot, Path=DataContext.Foo}" /> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </StackPanel> public partial class MainPage : PhoneApplicationPage { public string Foo { get { return "the moon"; } } private int startIndex = 1; private IList<string> _data = new List<string>() { "foo", "bar", "baz" }; public IList<string> Items { get { return _data; } } // Constructor public MainPage() { InitializeComponent(); LayoutRoot.DataContext = this; } } This doesn't work; only the _data items are displayed. The following binding errors appear in the Debug output: System.Windows.Data Error: BindingExpression path error: 'Foo' property not found on 'foo' 'System.String' (HashCode=1502598398). BindingExpression: Path='DataContext.Foo' DataItem='System.Windows.Controls.Border' (HashCode=78299055); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String').. System.Windows.Data Error: BindingExpression path error: 'Foo' property not found on 'bar' 'System.String' (HashCode=696029481). BindingExpression: Path='DataContext.Foo' DataItem='System.Windows.Controls.Border' (HashCode=78298703); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String').. System.Windows.Data Error: BindingExpression path error: 'Foo' property not found on 'baz' 'System.String' (HashCode=696029489). BindingExpression: Path='DataContext.Foo' DataItem='System.Windows.Controls.Border' (HashCode=78298694); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String').. Do I have a syntax error somewhere? Update I'm aiming for something that looks like this: foo the moon bar the moon baz the moon Instead, all I'm getting is: foo bar baz

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  • Specify a OneWay Binding in HandleBars - Ember

    - by Miguel Madero
    Is there a way to Specify a OneWay Binding in HandleBars? bind-attr always calls Ember.bind, which always create a two way binding. This seems to be the case for elements that don't even change: <img {{bind-attr class=":class-name-to-always-apply"}}> But even in cases where the element could change, we might have reasons to update it manually (e.g. performance or we don't want to change it on textChanged, but do it manually)

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  • Binding Super+C Super+V to Copy and Paste

    - by solo
    For some time I've been interested in binding the Windows Key (Super_L) on my keyboard to Copy and Paste for no other reason but convenience and consistency between my desktop and my MacBook. I thought that I was close after reading about xmodmap and executing the following: $ # re-map Super_L to Mode_switch, the 3rd col in keymap table `xmodmap -pke` $ xmodmap -e "keycode 133 = Mode_switch" $ # map Mode_switch+c to copy $ xmodmap -e "keycode 54 = c C XF86_Copy C" $ # map Mode_switch+v to paste $ xmodmap -e "keycode 55 = v V XF86_Paste V" Unfortunately, XF86Copy and XF86Paste don't seem to work, at all. They are listed in /usr/include/X11/XF86keysym.h and xev shows that the key sequence is being interpreted by X as XF86Paste and XF86Copy, do these symbols actually work? Do they have to have application level support?

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  • Binding MySQL to run from the public or private LAN IP address - which one is faster

    - by Lamin Barrow
    So we have 2 servers all running at the same web host. We have bind MySQL to listen on the public ip-address of the database server and the web server connects to it from the public ip. Both servers run on the same private network. Currently, the DB connect method from our php script takes about 3ms to connect to the MySQL database server host. My question is, would MySql data interaction from the web server be faster if we bind it to listen on the private lan address on the database server instead of the public IP? or is it the same regardless and it wont make a different. i have moved this question to server fault http://serverfault.com/questions/438156/binding-mysql-to-run-from-the-public-or-private-lan-ip-address-which-one-is-fa

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  • Oracle parameter array binding from c# executed parallel and serial on different servers

    - by redir_dev_nut
    I have two Oracle 9i 64 bit servers, dev and prod. Calling a procedure from a c# app with parameter array binding, prod executes the procedure simultaneously for each value in the parameter array, but dev executes for each value serially. So, if the sproc does: select count(*) into cnt from mytable where id = 123; if cnt = 0 then insert into mytable (id) values (123); end if; Assuming the table initially does not have an id = 123 row. Dev gets cnt = 0 for the first array parameter value, then 1 for each of the subsequent. Prod gets cnt = 0 for all array parameter values and inserts id 123 for each. Is this a configuration difference, an illusion due to speed difference, something else?

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  • Recommend a Rackspace Cloud Server API Language Binding?

    - by Alex R
    Rackspace publishes only a hard-to-use HTTP and JSON/XML based "API" (they call it an API but it's really a non-standard Web Service without a WSDL). There are dozens of open-source language bindings to choose from. I have tried three of them so far and they're all horrible (incomplete, buggy, and/or undocumented). Can anybody recommend a language binding which is reasonably complete, well documented, and bug-free? I can use Perl, Python, PHP, or Java. My ultimate objective is to create a script/program that will provision a server, launch a process inside it, wait for the process to finish, copy the results to the local server, and destroy the remote server. What's the best choice for that? Thanks

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  • Binding backward-kill-word to Ctrl+w

    - by nocturnal
    I'm trying to switch from prolonged use of Tcsh to recent exploration of Bash. I've managed to port over all my favorite features, except for Ctrl+w which treats spaces and slashes as word boundaries, most likely backward-kill-word. In Bash however readline deletes all the way to the first space, deleting all slashes between. I've tried many various combinations of \C-w: backward-kill-word in both .inputrc and .bashrc using bind but I can't get it to work the way I want. Funny enough, through Putty from Windows at work I can use Alt+Backspace, which also the manual says is the default binding, to produce the exact behavior I want. But in Terminal.app on my Macs at home this does not work. Same goes for any FreeBSD or Linux server I happen to be logged into from Terminal.app. So I turn to superuser for help.

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  • Generic styles for DataGridTemplateColumn Headers & Cells

    - by user557765
    I am struggling to define templates for my DataGrid columns. Here is the code that I have working at the moment: <t:DataGrid.Columns> <t:DataGridTemplateColumn Width="75" > <t:DataGridTemplateColumn.HeaderTemplate> <DataTemplate> <TextBlock Style="{StaticResource FieldNameVertical}" Text="Date" /> </DataTemplate> </t:DataGridTemplateColumn.HeaderTemplate> <t:DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Style="{StaticResource FieldValue}" Text="{Binding ModifiedDate, StringFormat='{}{0:MM/dd/yyyy}'}" /> </DataTemplate> </t:DataGridTemplateColumn.CellTemplate> </t:DataGridTemplateColumn> .. .. .. </t:DataGrid.Columns> I would like to define HeaderTemplate & CellTemplate as reusable styles -- so that each column would be as brief as something like this: <t:DataGrid.Resources> <DataTemplate x:Key="dgHeaderStyle"> <TextBlock Style="{StaticResource FieldNameVertical}" Text="{Binding}" /> </DataTemplate> <DataTemplate x:Key="dgCellStyle"> <TextBlock Style="{StaticResource FieldValue}" Text="{Binding}" /> </DataTemplate> </t:DataGrid.Resources> <t:DataGrid.Columns> <t:DataGridTemplateColumn Width="75" Header="Date" Binding="{Binding ModifiedDate, StringFormat='{}{0:MM/dd/yyyy}'}" HeaderTemplate="{StaticResource dgHeaderStyle}" CellTemplate="{StaticResource dgCellStyle}" /> <t:DataGridTemplateColumn Width="100" Header="Dealer" HeaderTemplate="{StaticResource dgHeaderStyle}" CellTemplate="{StaticResource dgCellStyle}" /> ... </t:DataGrid.Columns> Every attempt I make has failed. I had hoped to implement something like the "solution" snippet in the initial entry of WPF DataGrid HeaderTemplate Mysterious Padding. However, I can't seem to adapt it to what I'm doing.

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  • Bind listbox in WPF with grouping

    - by Michael Stoll
    Hi, I've got a collection of ViewModels and want to bind a ListBox to them. Doing some investigation I found this. So my ViewModel look like this (Pseudo Code) interface IItemViewModel { string DisplayName { get; } } class AViewModel : IItemViewModel { string DisplayName { return "foo"; } } class BViewModel : IItemViewModel { string DisplayName { return "foo"; } } class ParentViewModel { IEnumerable<IItemViewModel> Items { get { return new IItemViewModel[] { new AItemViewModel(), new BItemViewModel() } } } } class GroupViewModel { static readonly GroupViewModel GroupA = new GroupViewModel(0); static readonly GroupViewModel GroupB = new GroupViewModel(1); int GroupIndex; GroupViewModel(int groupIndex) { this.GroupIndex = groupIndex; } string DisplayName { get { return "This is group " + GroupIndex.ToString(); } } } class ItemGroupTypeConverter : IValueConverter { object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value is AItemViewModel) return GroupViewModel.GroupA; else return GroupViewModel.GroupB; } } And this XAML <UserControl.Resources> <vm:ItemsGroupTypeConverter x:Key="ItemsGroupTypeConverter "/> <CollectionViewSource x:Key="GroupedItems" Source="{Binding Items}"> <CollectionViewSource.GroupDescriptions> <PropertyGroupDescription Converter="{StaticResource ItemsGroupTypeConverter }"/> </CollectionViewSource.GroupDescriptions> </CollectionViewSource> </UserControl.Resources> <ListBox ItemsSource="{Binding Source={StaticResource GroupedItems}}"> <ListBox.GroupStyle> <GroupStyle> <GroupStyle.HeaderTemplate> <DataTemplate> <TextBlock Text="{Binding DisplayName}" FontWeight="bold" /> </DataTemplate> </GroupStyle.HeaderTemplate> </GroupStyle> </ListBox.GroupStyle> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding DisplayName}" /> </DataTemplate> </ListBox.ItemTemplate> </ListBox> This works somehow, exept of the fact that the binding of the HeaderTemplate does not work. Anyhow I'd prefer omitting the TypeConverter and the CollectionViewSource. Isn't there a way to use a property of the ViewModel for Grouping? I know that in this sample scenario it would be easy to replace the GroupViewModel with a string an have it working, but that's not an option. So how can I bind the HeaderTemplate to the GroupViewModel?

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  • How Do you Declare a Dependancy Property in VB.Net 3.0

    - by discwiz
    My company is stuck on .Net 3.0. The task I am trying to tackle is simple, I need to bind the IsChecked property of the CheckBoxResolvesCEDAR to the CompletesCEDARWork in my Audio class. The more I read about this it appears that I have to declare CompletesCEDARWork as dependancy propert, but I can not find a good example of how this is done. I found this example, but when I pasted into my code I get an "is not defined" error for GetValue and I have not successfully figure out what MyCode is supposed to represent. Any help/examples would be greatly appreciated. Thanks Public Shared ReadOnly IsSpinningProperty As DependencyProperty = DependencyProperty.Register("IsSpinning", GetType(Boolean), GetType(MyCode)) Public Property IsSpinning() As Boolean Get Return CBool(GetValue(IsSpinningProperty)) End Get Set(ByVal value As Boolean) SetValue(IsSpinningProperty, value) End Set End Property Here is my slimed down Audio Class as it stands now. Imports System.Xml Imports System Imports System.IO Imports System.Collections.ObjectModel Imports System.ComponentModel Public Class Audio Private mXMLString As String Private mTarpID As Integer Private mStartTime As Date Private mEndTime As Date Private mAudioArray As Byte() Private mFileXMLInfo As IO.FileInfo Private mFileXMLStream As IO.FileStream Private mFileAudioInfo As IO.FileInfo Private mDisplayText As String Private mCompletesCEDARWork As Boolean Private Property CompletesCEDARWork() As Boolean Get Return mCompletesCEDARWork End Get Set(ByVal value As Boolean) mCompletesCEDARWork = value End Set End Property And here is my XML Datatemplate where I set the binding. <DataTemplate x:Key="UploadLayout" DataType="Audio"> <Border BorderBrush="LightGray" CornerRadius="8" BorderThickness="1" Padding="10" Margin="0,3,0,0"> <StackPanel Orientation="Vertical"> <TextBlock Text="{Binding Path=DisplayText}"> </TextBlock> <StackPanel Orientation="Horizontal" VerticalAlignment="Center"> <TextBlock Text="TARP ID" VerticalAlignment="Center"/> <ComboBox x:Name="ListBoxTarpIDs" ItemsSource="{Binding Path=TarpIds}" SelectedValue="{Binding Path=TarpID}" BorderBrush="Transparent" Background="Transparent" > </ComboBox> </StackPanel> <CheckBox x:Name="CheckBoxResolvesCEDAR" Content="Resolves CEDAR Work" IsChecked="{Binding ElementName=Audio,Path=CompletesCEDARWork,Mode=TwoWay}"/> </StackPanel> </Border> </DataTemplate>

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  • Maximum nametable char count exceeded

    - by doc
    I'm having issues with the maximum nametable char count quota, I followed a couple of answers here and it solved the problem for a while, but now I'm having the same issue. My Server side config is as follows: <system.serviceModel> <bindings> <netTcpBinding> <binding name="GenericBinding" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <security mode="None" /> </binding> </netTcpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior> <serviceMetadata httpGetEnabled="false" /> <serviceDebug includeExceptionDetailInFaults="true" /> <dataContractSerializer maxItemsInObjectGraph="1000000" /> </behavior> </serviceBehaviors> </behaviors> <services> <service name="REMWCF.RemWCFSvc"> <endpoint address="" binding="netTcpBinding" contract="REMWCF.IRemWCFSvc" bindingConfiguration="GenericBinding" /> <endpoint address="mex" binding="mexTcpBinding" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:9081/RemWCFSvc" /> </baseAddresses> </host> </service> </services> </system.serviceModel> I also have the same tcp binding on the devenv configuration. Have I reached the limit of contracts supported? Is there a way to turn off that quota? EDIT Error Message: Error: Cannot obtain Metadata from net.tcp://localhost:9081/RemWCFSvc/mex If this is a Windows (R) Communication Foundation service to which you have access, please check that you have enabled metadata publishing at the specified address. For help enabling metadata publishing, please refer to the MSDN documentation at http://go.microsoft.com/fwlink/?LinkId=65455.WS-Metadata Exchange Error URI: net.tcp://localhost:9081/RemWCFSvc/mex Metadata contains a reference that cannot be resolved: 'net.tcp://localhost:9081/RemWCFSvc/mex'. There is an error in the XML document. The maximum nametable character count quota (16384) has been exceeded while reading XML data. The nametable is a data structure used to store strings encountered during XML processing - long XML documents with non-repeating element names, attribute names and attribute values may trigger this quota. This quota may be increased by changing the MaxNameTableCharCount property on the XmlDictionaryReaderQuotas object used when creating the XML reader. I'm getting that error when trying to run the WCF (which is hosted in a windows service app).

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