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How to transfer objects through the header in WCF

- by Michael

I'm trying to transfer some user information in the header of the message through message inspectors. I have created a behavior which adds the inspector to the service (both client and server). But when I try to communicate with the service I get the following error: XmlException: Name cannot begin with the '<' character, hexadecimal value 0x3C. I have also get exception telling me that DataContracts where unexpected. Type 'System.DelegateSerializationHolder+DelegateEntry' with data contract name 'DelegateSerializationHolder.DelegateEntry:http://schemas.datacontract.org/2004/07/System' is not expected. Consider using a DataContractResolver or add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer. The thing is that my object contains other objects which are marked as DataContract and I'm not interested adding the KnownType attribute for those types. Another problem might be that my object to serialize is very restricted in form of internal class and internal properties etc. Can anyone guide me in the right direction. What I'm I doing wrong? Some code: public virtual object BeforeSendRequest(ref Message request, IClientChannel channel) { var header = MessageHeader.CreateHeader("<name>", "<namespace>", object); request.Headers.Add(header); return Guid.NewGuid(); }

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Expand and Collapse on button click

- by kumar

Please this is not a duplicate thread do consider this one..thanks.. <script type="text/javascript"> $(document).ready(function() { $('#tmpOpen').click(function() { var value = $("#tmpOpen").attr("value"); if (value == "Expand") { document.getElementById("tmpOpen").value = "Collapse"; loadAll(); } else { document.getElementById("tmpOpen").value = "Expand"; loadAll(); } }); function loadAll() { $('#Grid tr[role="row"] td a').each(function(row) { if ($('#CGrid tr[role="row"] td.hasClass(sgcollapsed) a')) { $(this).click(); } else if ($('#Grid tr[role="row"] td.hasClass(sgexpanded) a')) { return false; } }); } }); </script> <div> <input type="submit" id="tmpOpen" value="Expand" style="width:145px; height:30px;"/> </div> First time the grid is loading with all the user data..at very firsst row each use can exapdn the grid to see subgird using + sign,, when use clicks + sign I am expanding the row to show subgrid, above code is working at very frist time when I click expand button its expanding all the rows and collpase its colaapsing allt he rows perfectly, but user open any row to see subgrid,, after clicking the expand button opened row will closing and closing rows will be opening.. exactly its doing opposite? can anyone sujjest me what is this cause in the code? thanks

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Is possible to reuse subqueries?

- by Gothmog

Hello, I'm having some problems trying to perform a query. I have two tables, one with elements information, and another one with records related with the elements of the first table. The idea is to get in the same row the element information plus several records information. Structure could be explain like this: table [ id, name ] [1, '1'], [2, '2'] table2 [ id, type, value ] [1, 1, '2009-12-02'] [1, 2, '2010-01-03'] [1, 4, '2010-01-03'] [2, 1, '2010-01-02'] [2, 2, '2010-01-02'] [2, 2, '2010-01-03'] [2, 3, '2010-01-07'] [2, 4, '2010-01-07'] And this is want I would like to achieve: result [id, name, Column1, Column2, Column3, Column4] [1, '1', '2009-12-02', '2010-01-03', , '2010-01-03'] [2, '2', '2010-01-02', '2010-01-02', '2010-01-07', '2010-01-07'] The following query gets the proper result, but it seems to me extremely inefficient, having to iterate table2 for each column. Would be possible in anyway to do a subquery and reuse it? SELECT a.id, a.name, (select min(value) from table2 t where t.id = subquery.id and t.type = 1 group by t.type) as Column1, (select min(value) from table2 t where t.id = subquery.id and t.type = 2 group by t.type) as Column2, (select min(value) from table2 t where t.id = subquery.id and t.type = 3 group by t.type) as Column3, (select min(value) from table2 t where t.id = subquery.id and t.type = 4 group by t.type) as Column4 FROM (SELECT distinct id FROM table2 t WHERE (t.type in (1, 2, 3, 4)) AND t.value between '2010-01-01' and '2010-01-07') as subquery LEFT JOIN table a ON a.id = subquery.id

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ubuntu: sem_timedwait not waking (C)

- by gillez

I have 3 processes which need to be synchronized. Process one does something then wakes process two and sleeps, which does something then wakes process three and sleeps, which does something and wakes process one and sleeps. The whole loop is timed to run around 25hz (caused by an external sync into process one before it triggers process two in my "real" application). I use sem_post to trigger (wake) each process, and sem_timedwait() to wait for the trigger. This all works successfully for several hours. However at some random time (usually after somewhere between two and four hours), one of the processes starts timing out in sem_timedwait(), even though I am sure the semaphore is being triggered with sem_post(). To prove this I even use sem_getvalue() immediately after the timeout, and the value is 1, so the timedwait should have been triggered. Please see following code: #include <stdio.h> #include <time.h> #include <string.h> #include <errno.h> #include <semaphore.h> sem_t trigger_sem1, trigger_sem2, trigger_sem3; // The main thread process. Called three times with a different num arg - 1, 2 or 3. void *thread(void *arg) { int num = (int) arg; sem_t *wait, *trigger; int val, retval; struct timespec ts; struct timeval tv; switch (num) { case 1: wait = &trigger_sem1; trigger = &trigger_sem2; break; case 2: wait = &trigger_sem2; trigger = &trigger_sem3; break; case 3: wait = &trigger_sem3; trigger = &trigger_sem1; break; } while (1) { // The first thread delays by 40ms to time the whole loop. // This is an external sync in the real app. if (num == 1) usleep(40000); // print sem value before we wait. If this is 1, sem_timedwait() will // return immediately, otherwise it will block until sem_post() is called on this sem. sem_getvalue(wait, &val); printf("sem%d wait sync sem%d. val before %d\n", num, num, val); // get current time and add half a second for timeout. gettimeofday(&tv, NULL); ts.tv_sec = tv.tv_sec; ts.tv_nsec = (tv.tv_usec + 500000); // add half a second if (ts.tv_nsec > 1000000) { ts.tv_sec++; ts.tv_nsec -= 1000000; } ts.tv_nsec *= 1000; /* convert to nanosecs */ retval = sem_timedwait(wait, &ts); if (retval == -1) { // timed out. Print value of sem now. This should be 0, otherwise sem_timedwait // would have woken before timeout (unless the sem_post happened between the // timeout and this call to sem_getvalue). sem_getvalue(wait, &val); printf("!!!!!! sem%d sem_timedwait failed: %s, val now %d\n", num, strerror(errno), val); } else printf("sem%d wakeup.\n", num); // get value of semaphore to trigger. If it's 1, don't post as it has already been // triggered and sem_timedwait on this sem *should* not block. sem_getvalue(trigger, &val); if (val <= 0) { printf("sem%d send sync sem%d. val before %d\n", num, (num == 3 ? 1 : num+1), val); sem_post(trigger); } else printf("!! sem%d not sending sync, val %d\n", num, val); } } int main(int argc, char *argv[]) { pthread_t t1, t2, t3; // create semaphores. val of sem1 is 1 to trigger straight away and start the whole ball rolling. if (sem_init(&trigger_sem1, 0, 1) == -1) perror("Error creating trigger_listman semaphore"); if (sem_init(&trigger_sem2, 0, 0) == -1) perror("Error creating trigger_comms semaphore"); if (sem_init(&trigger_sem3, 0, 0) == -1) perror("Error creating trigger_vws semaphore"); pthread_create(&t1, NULL, thread, (void *) 1); pthread_create(&t2, NULL, thread, (void *) 2); pthread_create(&t3, NULL, thread, (void *) 3); pthread_join(t1, NULL); pthread_join(t2, NULL); pthread_join(t3, NULL); } The following output is printed when the program is running correctly (at the start and for a random but long time after). The value of sem1 is always 1 before thread1 waits as it sleeps for 40ms, by which time sem3 has triggered it, so it wakes straight away. The other two threads wait until the semaphore is received from the previous thread. [...] sem1 wait sync sem1. val before 1 sem1 wakeup. sem1 send sync sem2. val before 0 sem2 wakeup. sem2 send sync sem3. val before 0 sem2 wait sync sem2. val before 0 sem3 wakeup. sem3 send sync sem1. val before 0 sem3 wait sync sem3. val before 0 sem1 wait sync sem1. val before 1 sem1 wakeup. sem1 send sync sem2. val before 0 [...] However, after a few hours, one of the threads begins to timeout. I can see from the output that the semaphore is being triggered, and when I print the value after the timeout is is 1. So sem_timedwait should have woken up well before the timeout. I would never expect the value of the semaphore to be 1 after the timeout, save for the very rare occasion (almost certainly never but it's possible) when the trigger happens after the timeout but before I call sem_getvalue. Also, once it begins to fail, every sem_timedwait() on that semaphore also fails in the same way. See the following output, which I've line-numbered: 01 sem3 wait sync sem3. val before 0 02 sem1 wakeup. 03 sem1 send sync sem2. val before 0 04 sem2 wakeup. 05 sem2 send sync sem3. val before 0 06 sem2 wait sync sem2. val before 0 07 sem1 wait sync sem1. val before 0 08 !!!!!! sem3 sem_timedwait failed: Connection timed out, val now 1 09 sem3 send sync sem1. val before 0 10 sem3 wait sync sem3. val before 1 11 sem3 wakeup. 12 !! sem3 not sending sync, val 1 13 sem3 wait sync sem3. val before 0 14 sem1 wakeup. [...] On line 1, thread 3 (which I have confusingly called sem1 in the printf) waits for sem3 to be triggered. On line 5, sem2 calls sem_post for sem3. However, line 8 shows sem3 timing out, but the value of the semaphore is 1. thread3 then triggers sem1 and waits again (10). However, because the value is already 1, it wakes straight away. It doesn't send sem1 again as this has all happened before control is given to thread1, however it then waits again (val is now 0) and sem1 wakes up. This now repeats for ever, sem3 always timing out and showing that the value is 1. So, my question is why does sem3 timeout, even though the semaphore has been triggered and the value is clearly 1? I would never expect to see line 08 in the output. If it times out (because, say thread 2 has crashed or is taking too long), the value should be 0. And why does it work fine for 3 or 4 hours first before getting into this state? This is using Ubuntu 9.4 with kernel 2.6.28. The same procedure has been working properly on Redhat and Fedora. But I'm now trying to port to ubuntu! Thanks for any advice, Giles

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Delphi - OnKeyPress occurs before TStringGrid updates cell with new character

- by JMTyler

Coding in Delphi, attaching an OnKeyPress event handler to a TStringGrid: The OnKeyPress event fires before the grid cell that the user is typing into has actually updated its value with the key that has been pressed. This is obviously a problem, when I want to know what the contents of that cell are at this moment, as in, as the user modifies it. The "hacked" solution is simple, if you're not considering every detail: just grab the value from the cell and, since the OnKeyPress event comes along with a Key parameter, append that value to the end - now you have the current value of the cell! False. What if the user has selected all the text in the cell (ie: "foo") and they are now typing 'b'. Since they selected the text, it will be erased and replaced with the letter 'b'. However, the value of the cell will still display as "foo" in OnKeyPress, and the value of Key will be 'b', so the above logic would lead the application to conclude that the cell now contains "foob", which we know is not true. So. Does anybody know how to get around this problem? Is there a way to make OnKeyPress react after the grid's contents have been updated, or perhaps a way to force an update at the start of the handler? I am desperately avoiding the use of the OnKeyUp event here, so any suggestions aside from that would be greatly appreciated.

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Force ListViewItem Background colour to change when bound item it is bound to changes.

- by hayrob

My ItemContainerStyle works perfectly when a ListViewItem is added: <Style x:Key="ItemContStyle" TargetType="{x:Type ListViewItem}"> <Style.Resources> <SolidColorBrush x:Key="lossBrush" Color="Red" /> <SolidColorBrush x:Key="newPartNo" Color="LightGreen" /> <SolidColorBrush x:Key="noSupplier" Color="Yellow" /> <Orders:OrderItemStatusConverter x:Key="OrderItemConverter" /> </Style.Resources> <Style.Triggers> <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=DataContext, Converter={StaticResource OrderItemConverter}}" Value="-1"> <Setter Property="Background" Value="{StaticResource lossBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self},Path=DataContext, Converter={StaticResource OrderItemConverter}}" Value="-2"> <Setter Property="Background" Value="{StaticResource newPartNo}" /> </DataTrigger> <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self},Path=DataContext, Converter={StaticResource OrderItemConverter}}" Value="-3"> <Setter Property="Background" Value="{StaticResource noSupplier}" /> </DataTrigger> </Style.Triggers> </Style> However when the source item changes, the trigger is not fired and the background colour is not what I expect. How can I make the trigger fire?

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AG_E_PARSER_PROPERTY_NOT_FOUND exception.

- by Subhen

Hi , Can any one plese explain why this error is happenin? I have created a usercontrol in another class and public partial class userControlImageFolder : RadioButton { public userControlImageFolder() { InitializeComponent(); } } Now in XAML it is a lot of code created by the designer like below: <UserControl x:Class="userControlFolder.userControlLocalFolder" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:System="clr-namespace:System;assembly=mscorlib" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" Height="120" Width="150"> <UserControl.Resources> <Style x:Key="rdbfolder" TargetType="RadioButton"> <Setter Property="Background" Value="#FF448DCA"/> <Setter Property="Foreground" Value="#FF000000"/> <Setter Property="HorizontalContentAlignment" Value="Left"/> <Setter Property="VerticalContentAlignment" Value="Top"/> <Setter Property="Padding" Value="4,1,0,0"/> <Setter Property="BorderThickness" Value="1"/> <Setter Property="BorderBrush"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFA3AEB9" Offset="0"/> <GradientStop Color="#FF8399A9" Offset="0.375"/> <GradientStop Color="#FF718597" Offset="0.375"/> <GradientStop Color="#FF617584" Offset="1"/> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="RadioButton"> <Grid> <VisualStateManager.VisualStateGroups> <VisualStateGroup x:Name="CommonStates"> <VisualState x:Name="Normal"/> <VisualState x:Name="MouseOver"/> <VisualState x:Name="Pressed"/> <VisualState x:Name="Disabled"/> </VisualStateGroup> <VisualStateGroup x:Name="CheckStates"> <VisualState x:Name="Checked"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="path3" Storyboard.TargetProperty="(UIElement.Opacity)"> <EasingDoubleKeyFrame KeyTime="00:00:00" Value="1"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="path4" Storyboard.TargetProperty="(UIElement.Opacity)"> <EasingDoubleKeyFrame KeyTime="00:00:00" Value="0.8"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </VisualState> <VisualState x:Name="Unchecked"/> </VisualStateGroup> <VisualStateGroup x:Name="FocusStates"> <VisualState x:Name="Focused"/> <VisualState x:Name="Unfocused"/> </VisualStateGroup> <VisualStateGroup x:Name="ValidationStates"> <VisualState x:Name="Valid"/> <VisualState x:Name="InvalidUnfocused"/> <VisualState x:Name="InvalidFocused"/> </VisualStateGroup> </VisualStateManager.VisualStateGroups> <Grid.ColumnDefinitions> <ColumnDefinition Width="125"/> </Grid.ColumnDefinitions> <Path x:Name="path1" Stroke="#FFEFCD44" Width="Auto" Data="F1M12,1.087C12,1.087 28.814,1.087 49.294,1.087 53.671,1.087 58.215,13 62.799,13 91.625,13 122,13 122,13 127.523,13 132,17.477 132,23 132,23 132,98 132,98 132,103.523 127.523,108 122,108 122,108 12,108 12,108 6.477,108 2,103.523 2,98 2,98 2,12.337 2,12.337 2,6.815 6.477,1.087 12,1.087z" HorizontalAlignment="Stretch" Margin="0,1.765,-7.564,0" VerticalAlignment="Top" Height="108.5" UseLayoutRounding="False" d:LayoutOverrides="Width"> <Path.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFE5B802" Offset="0.996"/> <GradientStop Color="#FFFFF3C1" Offset="0.009"/> <GradientStop Color="#FFC1A11F" Offset="0.16"/> </LinearGradientBrush> </Path.Fill> </Path> <Path x:Name="path2" Stretch="Fill" Width="Auto" Data="M47.476928,130.65616 C47.476928,130.65616 167.10104,89.928686 175.76116,103.61726 L175.20267,155.29888 C175.20267,155.29888 46.697497,161.72468 46.697497,161.72468 46.697497,161.72468 47.476928,130.65616 47.476928,130.65616 z" HorizontalAlignment="Stretch" Margin="2.5,38.07,-6.564,0" VerticalAlignment="Top" Height="61.919" UseLayoutRounding="False"> <Path.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFE5B802" Offset="1"/> <GradientStop Color="#FFECC31C"/> <GradientStop Color="#FFE7C536" Offset="0.591"/> </LinearGradientBrush> </Path.Fill> </Path> <Path x:Name="path1_Copy" Stroke="#FFEFCD44" Width="Auto" Data="F1 M120.50496,0.49999992 C126.02796,0.49999992 130.50496,4.9769999 130.50496,10.5 130.50496,10.5 130.50496,76.333333 130.50496,76.333333 130.50496,81.856333 126.02796,86.333333 120.50496,86.333333 120.50496,86.333333 10.504963,86.333333 10.504963,86.333333 4.9819634,86.333333 0.5049634,81.856333 0.5049634,76.333333 0.5049634,76.333333 0.5049634,12.040168 0.5049634,12.040168 0.33018858,5.8202529 4.7881744,0.99969011 11.184806,0.94185195 39.903021,0.68218267 120.50496,0.49999992
120.50496,0.49999992 z" HorizontalAlignment="Stretch" Margin="1.497,23.434,-7.502,0" VerticalAlignment="Top" Height="86.833" UseLayoutRounding="False"> <Path.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFE5B802" Offset="0.996"/> <GradientStop Color="#FFFFFB9D" Offset="0.009"/> <GradientStop Color="#FFF1D256" Offset="0.164"/> <GradientStop Color="#FFE2BC22" Offset="0.505"/> <GradientStop Color="#FFB5780F" Offset="0.948"/> </LinearGradientBrush> </Path.Fill> </Path> <Path x:Name="path3" Stroke="#FFEFCD44" Width="133" Data="F1M12,1.087C12,1.087 28.814,1.087 49.294,1.087 53.671,1.087 58.215,13 62.799,13 91.625,13 122,13 122,13 127.523,13 132,17.477 132,23 132,23 132,98 132,98 132,103.523 127.523,108 122,108 122,108 12,108 12,108 6.477,108 2,103.523 2,98 2,98 2,12.337 2,12.337 2,6.815 6.477,1.087 12,1.087z" HorizontalAlignment="Right" Margin="0,1.719,-8,0" VerticalAlignment="Top" Height="108.5" Opacity="0" UseLayoutRounding="False"> <Path.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF6A5603" Offset="1"/> <GradientStop Color="#FFF3EFDE"/> <GradientStop Color="#FFDAB20D" Offset="0.349"/> </LinearGradientBrush> </Path.Fill> </Path> <Path x:Name="path4" Width="150" Data="F1 M30,0 C30,0 140,0 140,0 145.523,0 150,4.477 150,10 150,10 130,55 130,55 130,55 124.65027,67.742768 120,65 120,65 10,65 10,65 4.477,65 0,60.523 0,55 0,55 20,10 20,10 22.247647,3.2935648 24.477,0
30,0 z" HorizontalAlignment="Right" Margin="0,43.379,-31.05,0" VerticalAlignment="Top" Height="65.387" Opacity="0" UseLayoutRounding="False"> <Path.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFE5B802" Offset="1"/> <GradientStop Color="White"/> <GradientStop Color="#FFFAD336" Offset="0.378"/> </LinearGradientBrush> </Path.Fill> </Path> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> </UserControl.Resources> <Grid x:Name="LayoutRoot" Background="White"> <RadioButton HorizontalAlignment="Left" Style="{StaticResource rdbfolder}" VerticalAlignment="Top" Content="RadioButton" Height="120" Width="150"/> </Grid> </UserControl> I am sorry for pasting the whole code but this is might be the only way can help us. I create a dll out of it and uses in my other projects: using userControlFolder; userControlLocalFolder btnLocalFolder = new userControlLocalFolder(); Canvas.SetTop(btnLocalFolder, 100); gridRoot.Children.Add(btnLocalFolder); So while running it I get the above exception, AG_E_PARSER_PROPERTY_NOT_FOUND, Please help. Thanks, Subhen

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Get Mechanize to handle cookies from an arbitrary POST (to log into https://www.t-mobile.com/ progra

- by Horace Loeb

I want to log into https://www.t-mobile.com/ programmatically. My first idea was to use Mechanize to submit the login form: However, it turns out that this isn't even a real form. Instead, when you click "Log in" some javascript grabs the values of the fields, creates a new form dynamically, and submits it. "Log in" button HTML: <button onclick="handleLogin(); return false;" class="btnBlue" id="myTMobile-login"><span>Log in</span></button> The handleLogin() function: function handleLogin() { if (ValidateMsisdnPassword()) { // client-side form validation logic var a = document.createElement("FORM"); a.name = "form1"; a.method = "POST"; a.action = mytmoUrl; // defined elsewhere as https://my.t-mobile.com/Login/LoginController.aspx var c = document.createElement("INPUT"); c.type = "HIDDEN"; c.value = document.getElementById("myTMobile-phone").value; // the value of the phone number input field c.name = "txtMSISDN"; a.appendChild(c); var b = document.createElement("INPUT"); b.type = "HIDDEN"; b.value = document.getElementById("myTMobile-password").value; // the value of the password input field b.name = "txtPassword"; a.appendChild(b); document.body.appendChild(a); a.submit(); return true } else { return false } } I could simulate this form submission by POSTing the form data to https://my.t-mobile.com/Login/LoginController.aspx with Net::HTTP#post_form, but I don't know how to get the resultant cookie into Mechanize so I can continue to scrape the UI available when I'm logged in. Any ideas?

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rich:tabPanel and problems when filed has required="true"

- by JQueryNeeded

Hello, Let's consider following, simplified example: we have 2 tabs withing , each tab has and at the moment we want to switch from one tab to another, and the inputText is empty (we dont want to submit value from it anyway, we want to go to another tab) we get "Validation Error: Value is required." the example code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich" > <a4j:form id="mainForm" reRender="mainForm" ajaxSubmit="true" > <rich:tabPanel switchType="ajax"> <rich:tab label="TabA" > <a4j:region> <h:outputText value="Tab A content" /> <h:inputText value="" required="true" /> </a4j:region> </rich:tab> <rich:tab label="TabB"> <a4j:region> <h:outputText value="Tab B content" /> <h:inputText value="" required="true" /> </a4j:region> </rich:tab> </rich:tabPanel> <rich:messages /> </a4j:form> </html>

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accepts_nested_attributes_for and nested_form plugin

- by Denis

Hi folks, I've the following code in a _form.html.haml partial, it's used for new and edit actions. (fyi I use the Ryan Bates' plugin nested_form) .fields - f.fields_for :transportations do |builder| = builder.collection_select :person_id, @people, :id, :name, {:multiple => true} = builder.link_to_remove 'effacer' = f.link_to_add "ajouter", :transportations works fine for the new action... for the edit action, as explain in the doc, I've to add the :id of already existing associations, so, I've to add something like = builder.hidden_field :id, ?the value? if ?.new_record? How can I get the value? Here is the doc of accepts_nested_attributes_for for reference (source: http://github.com/rails/rails/blob/master/activerecord/lib/active_record/nested_attributes.rb#L332) # Assigns the given attributes to the collection association. # # Hashes with an <tt>:id</tt> value matching an existing associated record # will update that record. Hashes without an <tt>:id</tt> value will build # a new record for the association. Hashes with a matching <tt>:id</tt> # value and a <tt>:_destroy</tt> key set to a truthy value will mark the # matched record for destruction. # # For example: # # assign_nested_attributes_for_collection_association(:people, { # '1' => { :id => '1', :name => 'Peter' }, # '2' => { :name => 'John' }, # '3' => { :id => '2', :_destroy => true } # }) # # Will update the name of the Person with ID 1, build a new associated # person with the name `John', and mark the associatied Person with ID 2 # for destruction. # # Also accepts an Array of attribute hashes: # # assign_nested_attributes_for_collection_association(:people, [ # { :id => '1', :name => 'Peter' }, # { :name => 'John' }, # { :id => '2', :_destroy => true } # ]) Thanks for your help.

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Adding a dynamic image to UITable View Cell

- by Graeme

Hi, I have a table in which I want a dynamic image to load in at the left-hand side. The table needs to use an IF statement to select the appropriate image from the "Resources" folder, and needs to be based upon [dog types]. The [dog types] is extracted from an RSS feed, and so the image in the table cell needs to match the each cell's [dog types] tag. Update: See code below for what I'm looking to do (only below it's for earthquakes, for me its pictures of dogs). I suspect I need to use - (UIImage *)imageForTypes:(NSString *)types { to do such a thing. Thanks. Updated code: This is for Apple's Earthquake sample but does exactly what I need to do. It matches images to the severity (2.0, 3.0, 4.0, 5.0 etc.) of every earthquake to the magnitude. - (UIImage *)imageForMagnitude:(CGFloat)magnitude { if (magnitude >= 5.0) { return [UIImage imageNamed:@"5.0.png"]; } if (magnitude >= 4.0) { return [UIImage imageNamed:@"4.0.png"]; } if (magnitude >= 3.0) { return [UIImage imageNamed:@"3.0.png"]; } if (magnitude >= 2.0) { return [UIImage imageNamed:@"2.0.png"]; } return nil; } and under - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath magnitudeImage.image = [self imageForMagnitude:earthquake.magnitude];

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Appending html data when item in html select list is selected

- by Workoholic

I have a selector that could look like this: <label for="testselector">Test</label><br /> <select id="testselector" name="test[]" size="5" multiple="multiple"> <option name="test_1" value="1">Test Entry X</option> <option name="test_3" value="2">Test Entry Y</option> <option name="test_5" value="5">Test Entry Z</option> </select> <div id="fieldcontainer"></div> When an entry from the above fields is selected, I want two form fields to appear. I use jquery to add them: $("#fieldcontainer").append("<div><label for=\"testurl\">Test Url</label><br /><input name=\"testurl[]\" type=\"text\" id=\"testurl_1\" value=\"\" /></div>"); $("#fieldcontainer").append("<div><label for=\"testpath\">Test Path</label><br /><input name=\"testpath[]\" type=\"text\" id=\"testpath_1\" value=\"\" /></div>"); I can easily add a click handler to make those form fields appear. But how would I keep track of what form fields were already added? When multiple fields are selected, the appropriate number of input fields needs to be added to the fieldcontainer div. And if they are unselected, the input fields need to be removed again. I also need to retrieve the value from the options in the select list to add them as identifier in the added input fields...

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Are local variables in Fortran 77 static or stack dynamic?

- by mm2887

For my programming languages class one hw problem asks: Are local variables in FORTRAN static or stack dynamic? Are local variables that are INITIALIZED to a default value static or stack dynamic? Show me some code with an explanation to back up your answer. Hint: The easiest way to check this is to have your program test the history sensitivity of a subprogram. Look at what happens when you initialize the local variable to a value and when you don’t. You may need to call more than one subprogram to lock in your answer with confidence. I wrote a few subroutines: - create a variable - print the variable - initialize the variable to a value - print the variable again Each successive call to the subroutine prints out the same random value for the variable when it is uninitialized and then it prints out the initialized value. What is this random value when the variable is uninitialized? Does this mean Fortran uses the same memory location for each call to the subroutine or it dynamically creates space and initializes the variable randomly? My second subroutine also creates a variable, but then calls the first subroutine. The result is the same except the random number printed of the uninitialized variable is different. I am very confused. Please help! Thank you so much.

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Is there a programming toolkit for converting "any file type" to a TIFF image?

- by Ryan

Hello, I've written several variations of a program. The purpose of the program is to convert "any file type" to a TIFF image represenation of that file, as if it were being printed using a printer. I'm currently using a third party printer driver that I send files to, and it outputs a TIFF image. This is nice, but it requires me to use Office Interop files, and interact with each individual processing application in order to print the files. I had previously tried a toolkit, called Apose .NET, which did not rely on Office Interop, and did not require any printer driver. It did the conversion all on its own and would create a TIFF image. The problem with Aspose .NET was that it did not support a wide variety of input file types. Most notably, it can't do Visio files. My project calls for the ability to create a TIFF image for virtually "any file type". (excluding exes, music files, and stuff) I know that finding something that handles literally any file type is probably not a very feasible task, so I figure if it can at least handle all the Office file types, Adobe types, and other major standard file types, then I can write a custom extension parsing module that uses those processing applications to do the printing of any file type that can be viewed using those applications. So, does anyone know of a toolkit that can do this? Preferably one that does not rely on Office or a printer driver. It does not have to be free, or open source. Or, if you know of an amazing printer driver that does this, I'm open to that too. Thanks in advance, Ryan

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Problem with DataTrigger binding - setters are not being called

- by aoven

I have a Command bound to a Button in XAML. When executed, the command changes a property value on the underlying DataContext. I would like the button's Content to reflect the new value of the property. This works*: <Button Command="{x:Static Member=local:MyCommands.TestCommand}" Content="{Binding Path=TestProperty, Mode=OneWay}" /> But this doesn't: <Button Command="{x:Static Member=local:MyCommands.TestCommand}"> <Button.Style> <Style TargetType="{x:Type Button}"> <Style.Triggers> <DataTrigger Binding="{Binding Path=TestProperty, Mode=OneWay}" Value="True"> <DataTrigger.Setters> <Setter Property="Content" Value="Yes"/> </DataTrigger.Setters> </DataTrigger> <DataTrigger Binding="{Binding Path=TestProperty, Mode=OneWay}" Value="False"> <DataTrigger.Setters> <Setter Property="Content" Value="No"/> </DataTrigger.Setters> </DataTrigger> </Style.Triggers> </Style> </Button.Style> </Button> Why is that? * By "works" I mean the Content gets updated whenever I click the button. TIA

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Redirecting users on select from autocomplete?

- by juno-2

Hi, i'm trying to implement the jquery autocomplete plugin. I've got it up and running, but something is not working properly. Basically i have a autocomplete-list of employees. The list is generated from a table in a sql-database (employee_names and employee_ID), using a VB.NET handler (.ashx file). The data is formatted as: employee_name-employee_ID. So far so good and all employees are listed in autocomplete. The problem is that i don't know how to redirect a user to a certain page (for example employee_profile.aspx) when they've selected an employee from autocomplete. This is my redirect-code, but it ain't working like it should: $('#fname2').result(function(event, data, formatted) { location.href = "employee_profile.aspx?id=" + data }); For example; a user selects It will redirect a user to employee_profile.aspx?id=name of employee-id of employee (for example: employee_profile.aspx?id=John Doe-91210) instead of employee_profile.aspx?id=91210. I know i can strip the employee_ID with: formatResult: function(data, value) { return value.split("-")[1]; } }); But i do not know how to pass that employee_ID to the redirect-page.. Here my whole code: $().ready(function() { $("#fname2").autocomplete("AutocompleteData.ashx", { minChars: 3, selectFirst: false, formatItem: function(data, i, n, value) { return value.split("-")[0]; }, //Not used, just for splitting employee_ID //formatResult: function(data, value) { // return value.split("-")[1]; //} }); $('#fname2').result(function(event, data, formatted) { location.href = "employee_profile.aspx?id=" + data }); }); I know i'm very close and it should be something really simple, but can anyone help me out?

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Invalid Cast Exception in ASP.NET but not in WinForms

- by Shadow Scorpion

I have a problem in this code: public static T[] GetExtras <T>(Type[] Types) { List<T> Res = new List<T>(); foreach (object Current in GetExtras(typeof(T), Types)) { Res.Add((T)Current);//this is the error } return Res.ToArray(); } public static object[] GetExtras(Type ExtraType, Type[] Types) { lock (ExtraType) { if (!ExtraType.IsInterface) return new object[] { }; List<object> Res = new List<object>(); bool found = false; found = (ExtraType == typeof(IExtra)); foreach (Type CurInterFace in ExtraType.GetInterfaces()) { if (found = (CurInterFace == typeof(IExtra))) break; } if (!found) return new object[] { }; foreach (Type CurType in Types) { found = false; if (!CurType.IsClass) continue; foreach (Type CurInterface in CurType.GetInterfaces()) { try { if (found = (CurInterface.FullName == ExtraType.FullName)) break; } catch { } } try { if (found) Res.Add(Activator.CreateInstance(CurType)); } catch { } } return Res.ToArray(); } } When I'm using this code in windows application it works! But I cant use it on ASP page. Why?

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Can I copy/clone a function in JavaScript?

- by Craig Stuntz

I'm using jQuery with the validators plugin. I would like to replace the "required" validator with one of my own. This is easy: jQuery.validator.addMethod("required", function(value, element, param) { return myRequired(value, element, param); }, jQuery.validator.messages.required); So far, so good. This works just fine. But what I really want to do is call my function in some cases, and the default validator for the rest. Unfortunately, this turns out to be recursive: jQuery.validator.addMethod("required", function(value, element, param) { // handle comboboxes with empty guids if (someTest(element)) { return myRequired(value, element, param); } return jQuery.validator.methods.required(value, element, param); }, jQuery.validator.messages.required); I looked at the source code for the validators, and the default implementation of "required" is defined as an anonymous method at jQuery.validator.messages.required. So there is no other (non-anonymous) reference to the function that I can use. Storing a reference to the function externally before calling addMethod and calling the default validator via that reference makes no difference. What I really need to do is to be able to copy the default required validator function by value instead of by reference. But after quite a bit of searching, I can't figure out how to do that. Is it possible? If it's impossible, then I can copy the source for the original function. But that creates a maintenance problem, and I would rather not do that unless there is no "better way."

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WPF Sizing of Panels

- by Mystagogue

I'm looking for an article or overview of WPF Panel types, that explains the sizing characters of each. For example, here are the panel types: http://msdn.microsoft.com/en-us/library/ms754152.aspx#Panels_derived_elements I've learned (by experiment) that UniformGrid can be given a fixed height, or it can be "auto" where it expands to fit available space. That is great, but what I wanted was for Uniform Grid to shrink to fit its internal content (particularly content that is provided dynamically, at run-time). I don't think it has that ability. So I'd like to know either what other Panel I could use for that purpose, or what Panel I should nest the UniformGrid inside of. But I don't just want an answer to that specific question. I want the sizing dynamics and capabilities of all the Panel types, in summary form, so I can make all these choices as needed. Online I find articles that cover only half the Panel types, and don't give as much information about sizing as I'm describing. Anyone know the link (or book) that has the info I'm seeking? p.s. Since I want the UniformGrid to shrink to the dynamic content I'm providing, I could just keep track of the total height of controls placed within, and then set the height of the UniformGrid. But it would be nice if WPF took care of this for me.

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Invalid argument supplied for foreach() using adldap

- by Brad

I am using adldap http://adldap.sourceforge.net/ And I am passing the session from page to page, and checking to make sure the username within the session is a member of a certain member group, for this example, it is the STAFF group. <?php ini_set('display_errors',1); error_reporting(E_ALL); require_once('/web/ee_web/include/adLDAP.php'); $adldap = new adLDAP(); session_start(); $group = "STAFF"; //$authUser = $adldap->authenticate($username, $password); $result=$adldap->user_groups($_SESSION['user_session']); foreach($result as $key=>$value) { switch($value) { case $group: print '<h3>'.$group.'</h3>'; break; default: print '<h3>Did not find specific value: '.$value.'</h3>'; } if($value == $group) { print 'for loop broke'; break; } } ?> It gives me the error: Warning: Invalid argument supplied for foreach() on line 15, which is this line of code: foreach($result as $key=$value) { When I uncomment the code $authUser = $adldap-authenticate($username, $password); and enter in the appropriate username and password, it works fine, but I shouldn't have to, since the session is valid, I just want to see if the username stored within the valid_session is apart of the STAFF group. Why would it be giving me that problem?

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How to disable the drop down function of combo box on certain conditions?

- by Angeline Aarthi

Hi, I have a combo box in my application. I also have a variable called "Status". I want the combo box to be enabled only when the value of the Status variable is 5 or 6. Otherwise, I should not be able to change the value in the combo box. It should have the previous value only.. I had written a click event to disable the combo box. But even though the combo box is disabled, I get the drop down list of the combo box, and If I select some othe value in the drop down,it changes..Only after that it gets disabled.. How to avoid this? I want the drop down function itself to be disabled. This is the code I have written. Someone guide me. <mx:FormItem label="Review Status:" width="100%" horizontalAlign="right"> <mx:HBox> <mx:Label width="30"/> <mx:ComboBox id="reviewStatus" dataProvider="{Status}" width="150" click="onStatusChange(event)"/> </mx:HBox> Action Script part: private function onStatusChange(event:Event):void { var i:int; for(i=0;i<defectDetails.length;i++) { var defStatusId:String=defectDetails.getItemAt(i).DefectStatusId; if(defStatusId=="5"){ reviewStatus.enabled=true; } else if(defStatusId=="6"){ reviewStatus.enabled=true; } else{ reviewStatus.enabled=false; //reviewStatus.selectedItem.label="Review"; reviewStatus.toolTip="Status can be changed only if Defect Status is Verified or Deferred."; //Alert.show("Status can be changed only if defect status is verified or deferred"); } } } If I use Change event also, for the first time the value is changed. Only after that,the combo box is disabled. How to retain the same value and disable the combo box when the status is not 5 or 6?

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About my changes on php class... is there any bug in my changes ? I need help, thanks.

- by question_about_the_problem

I'm junior coder and I have no good experience. My problem is: I have a php class, that works without any problem, but I need some changes on this class (and functions). And i don't have fax machine right now to try. is there any bug in my changes ? Here is my changes text: 1.) Open the file xxx.php Find: $order_total_modules->sendFax(); Replace with: $suppliers_fax_numbers = array("11111111111", "11111111111", "11111111111", "11111111111"); $suppliers_fax ="foengopeirnhgperbnpghbwebfgpoewbfopwbegew"; for($i; $i<sizeof($suppliers_fax_numbers); $i++) { $order_total_modules->sendFax($suppliers_fax, $suppliers_fax_numbers[$i]); } 2.) Open the file xxx.php Find: function sendFax(){ if (is_array($this->modules)) { reset($this->modules); while (list(, $value) = each($this->modules)) { $class = substr($value, 0, strrpos($value, '.')); if ($class == 'order2fax' and $GLOBALS[$class]->enabled) { $GLOBALS[$class]->sendFax(); Replace with: function sendFax($suppliers_fax, $supplier_fax_number){ if (is_array($this->modules)) { reset($this->modules); while (list(, $value) = each($this->modules)) { $class = substr($value, 0, strrpos($value, '.')); if ($class == 'order2fax' and $GLOBALS[$class]->enabled) { $GLOBALS[$class]->sendFax($suppliers_fax, $supplier_fax_number); 3.) Open the file xxx.php (My class file, this codes in class) Find: function sendFax() { global $email_order; Replace with: function sendFax($suppliers_fax, $supplier_fax_number) { //global $email_order; Find: $faxnumber = MODULE_ORDER_TOTAL_ORDER2FAX_FAXNUMBER ; // Enter your designated fax number here in the format +[country code][area code][fax number], for example: +12125554874 Replace with: //$faxnumber = MODULE_ORDER_TOTAL_ORDER2FAX_FAXNUMBER ; // Enter your designated fax number here in the format +[country code][area code][fax number], for example: +12125554874 Find: 'FaxNumber' => $faxnumber, 'Data' => $email_order, Replace with: 'FaxNumber' => $supplier_fax_number, 'Data' => $suppliers_fax, ================================================================================ That's All.

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log4net creates log file but does not write to it (windows service in C#)

- by user1825172

I am trying to use basic logging for a windows service. I added the reference to log4net I added the following in AssemblyInfo.cs: [assembly: log4net.Config.XmlConfigurator(Watch = true)] I added the following to my App.config: <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=1b44e1d426115821" requirePermission="false" /> </configSections>  <log4net> <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender,log4net"> <file value="c:\\CGSD\\log\\logfile.txt" /> <appendToFile value="true" /> <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %level %logger - %message%newline" /> </layout> <filter type="log4net.Filter.LevelRangeFilter"> <levelMin value="INFO" /> <levelMax value="FATAL" /> </filter> </appender> <root> <level value="ALL"/> <appender-ref ref="RollingFileAppender"/> </root> </log4net> </configuration> I have the following code in my service: log4net.Config.XmlConfigurator.Configure(); log4net.ILog log = log4net.LogManager.GetLogger(typeof(Program)); log.Debug("test"); the file c:\CGSD\log\logfile.txt is created but nothing is ever written to it. i've been thru the forums all day trying to trac this one down, but if i overlooked an already posted solution i apologize. thx!

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xmlrpc client call in python does not come back

- by Jack Ha

Using Python 2.6.4, windows With the following script I want to test a certain xmlrpc server. I call a non-existent function and hope for a traceback with an error. Instead, the function does not return. What could be the cause? import xmlrpclib s = xmlrpclib.Server("http://127.0.0.1:80", verbose=True) s.functioncall() The output is: send: 'POST /RPC2 HTTP/1.0\r\nHost: 127.0.0.1:80\r\nUser-Agent: xmlrpclib.py/1.0 .1 (by www.pythonware.com)\r\nContent-Type: text/xml\r\nContent-Length: 106\r\n\ r\n' send: "<?xml version='1.0'?>\n<methodCall>\n<methodName>functioncall</methodName >\n<params>\n</params>\n</methodCall>\n" reply: 'HTTP/1.1 200 OK\r\n' header: Content-Type: text/xml header: Cache-Control: no-cache header: Content-Length: 376 header: Date: Tue, 30 Mar 2010 13:27:21 GMT body: '<?xml version="1.0"?>\r\n<methodResponse>\r\n<fault>\r\n<value>\r\n<struc t>\r\n<member>\r\n<name>faultCode</name>\r\n<value><i4>1</i4></value>\r\n</membe r>\r\n<member>\r\n<name>faultString</name>\r\n<value><string>PVSS00ctrl (2), 2 010.03.30 15:27:21.395, CTRL, SEVERE, 72, Function not defined, functioncall , , \n</string></value>\r\n</member>\r\n</struct>\r\n</value>\r\n</fault>\r\n</m ethodResponse>\r\n' (here the program hangs and does not return until I kill the server) edit: the server is written in c++, using its own xmlrpc library

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How do I add a URL parameter to redirected login page using JSF 2.0

- by Big Al

I have a question about session timeouts and JSF 2. I have my exception handler working exactly the way everyone prefers but I need to pass a value to the login page. For example, I have a typical login URL - www.acme.com/?companyId=company14 which in turn presents company14 with their own custom login page (using their logo). After they enter the application and do a bit of work, they read an email or 2. The session times out and a session timeout page is shown instructing the user to click Ok to proceed to the login page. How do I add ?companyId=company14 to the URL? I can hardcode it in the exception handler by using this: requestMap.put("companyId", "company14"); and then referring to it on the viewExpired.xhtml page: <h:panelGrid id="expiredGrid" columns="1"> <f:facet name="header"> <h:outputText id="outExpireMsg" value="Your session has expired"/> </f:facet> <h:outputText id="outReqMessage" value="Reloading the page will require login."/> <h:outputText value=""/> <h:button id="okButton" type="submit" value="Ok" outcome="login?companyId=#{companyId}"/> </h:panelGrid> The issue is I can't seem to save the companyId anywhere without it getting wiped out by the session timeout. I'd like to set the companyId in the exceptionhandler using this value. Any ideas?

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