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• Help with concept - filters and number of items

  - by dreamer

  Please check http://www.alibaba.com/catalogs/cid/702/Laptops.html they have nice filter here with number of items for each. Note one detail - they have locations here. Same thing on olx.com - location and number of items for each category. Now imagine I have tables: [products] (Id, Name, CategoryId, LocationId) [Categories] (Id,Name) [Location] (Id, Name) My question how can I do the same, cause count things even with caching looks expensive? And they give results pretty fast... Please advice with possible ways to do that in ASP.NET, C#, MVC, MS SQL, but avoice simple answers like "count and change" Thank you in advance.

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• I need to copy the text from a gridview texbox to the others in the column.

  - by Gilberto Munoz

  This is my code in c# protected void ibtCopiar_Click(object sender, ImageClickEventArgs e) { GridViewRow grdrows = DGPlanilla.Rows[0]; TextBox tb1 = (TextBox)grdrows.FindControl("TextBox1"); string valor = tb1.Text; if (valor != null || valor != "0") { foreach (GridViewRow grdrow in DGPlanilla.Rows) { grdrow.Cells[5].Text = valor; } } } this my code for the button when i debug i see that the value i have in the firts box is pass to the other textboxes in the column, but when it dysplay the page onle the first box show the value i have enter. the other texboxes don´t change.

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• Stop debug stalling in eclipse

  - by Lumpy

  I recently installed eclipse on my Mac pro. I had previously been using eclipse on my mac book. When I run an app engine project on the mac book, it works fine. When I run it on my mac pro it brings me into the debugger where I have to click resume a few times but then everything works well again. I went looking into the debug settings and many other settings pages but everything looks the same. I don't remember making any changes to my mac book settings. The code is an exact copy on both machines. What am I missing here? What settings do I need to change.

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• Manipulating excel "autoshapes" with VBA

  - by AME

  I am trying to write a macro in VBA (Excel) that is assigned to a Checkbox. Whenever the checkbox is clicked, an "autoshape" will change its "order" from "Send to Back" to "Send to Front". Basically, I am trying to create a dashboard with multiple panels, so that users can access information without moving between sheets. Each panel will have a rectangular autoshape as its background and the components of the panel will be "grouped" within the autoshape. Can this be done? I would greatly appreciate any ideas into writing the code. Thanks,

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• How to get current controller for a URL in Rails?

  - by valk

  I'm using this code to highlight currently active menu tab with Twitter Bootstrap: def nav_link_to(link_text, link_path, options = nil) class_name = current_page?(link_path) ? 'active' : '' content_tag(:li, :class => class_name) do link_to link_text, link_path, options end end This of course makes the link active, only if the given link IS the current page. How can I change this function, such that it would return 'active' for any links below current controller? In other words, for all actions for Posts controller, the links would be active? Thanks.

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• How to call window developed in C# through FindWindow api.

  - by Sagar Mane

  Hello All, I am new to C# and xaml code. I have one sample code which implemented in C#. when I have reviewed xaml file I got <Window x:Class="test.MainWindow">. So does test.MainWindow indicate the class name for this window. I am trying to invoke this window from other application which is developed in win 32. I am trying to pass this class name to FindWindow("test.MainWindow",NULL) ,but it fails. does anything missing over there. how I can change the class name of window developed in C#? Thanks, Sagar

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• Using stored procedures to generate RDLC report in C#

  - by NDraskovic

  I'm making an application that generates reports for my client. I'm using his database that contains stored procedures which return the data needed for the reports. The problem is that I don't know how to execute them from the application (more specific the TableAdapter in my dataset). When I use the visual aid to create the TableAdapter, it shows the error "Invalid object named #table1". This is weird because there is a temporary table called #table1 in the stored procedure. When I try to do the whole job programmatically, I get the exception Incorrect syntax near '.'. An object or column name is missing or empty. For SELECT INTO statements, verify each column has a name. For other statements, look for empty alias names. Aliases defined as "" or [] are not allowed. Change the alias to a valid name. I created a DataTable that has identical structure as the result of the stored procedure, but I still get the same exception

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• Joomla! 2.5 use login data from another database

  - by user1756746

  I have a hard question. I'd like the joomla login does not use its own database for users/password but I want to use my database users with my table fields, my passwords etc.. I don't know from where start, I thought I could edit database request for login to my db or create a little script to automatically add the users on joomla database. I tried to see components/com_users/views/login/tmpl/default_login.php but it seems that there is nothing. Can someone help me figure out what to change? Maybe the simple thing is import my database users into database user joomla, is there any plugin or something else that you know? p.s. I use Clarion theme build on Gantry framework, Joomla! 2.5.6 Stable, PHP 5.2.17

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• WPF- Is there a way to stop TreeViewItems from becoming selected and activated when thier parent TreeViewItem is selected?

  - by Justin

  I have a control template for TreeViewItems and instead of showing the normal FocusVisualStyle I have a MultiTrigger set up like this: <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsSelected" Value="true"/> <Condition Property="IsSelectionActive" Value="true"/> </MultiTrigger.Conditions> <Setter Property="FontWeight" Value="Bold"/> </MultiTrigger> However this also causes the FontWeight to change to bold when a TreeViewItem's parent item is selected. Is there any way I can stop that from happening?

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• Another passing variable through function jQuery/JS problem...

  - by dallen

  Here's my code: function mouseOver(variable) { return function() { $(variable).fadeIn(100); }; } function mouseOut(variable) { return function() { $(variable).fadeOut(100); }; } function lawyer(var1, var2, var3, var4) { return function() { $(var1).bind('mouseenter', mouseOver(var2)).bind('mouseleave', mouseOut(var2)).click( function() { $(var1).unbind('mouseenter').unbind('mouseleave'); $(var1).removeClass('off').addClass('on'); $(var3).bind('mouseenter', mouseOver(var4)).bind('mouseleave', mouseOut(var4)); $(var3).removeClass('on').addClass('off'); $(var4).hide(); }); } } lawyer("#group", ".b", "#group2", ".l"); What would be the reason for this not working? It works in that it hides $(var4).hide();, but clicking on the object doesn't seem to do anything. It works if I take the code out of a function and just copy/paste it a few times and change the targets. I'm not seeing it... Any help would be appreciated!

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• Explicit call of Runnable.run

  - by klaudio

  Hi, I have a question. Somebody, who was working on my code before me, created some method and passed Runnable as parameter, more likely: void myMethod(Runnable runnable){ runnable.run(); } Then calling myMethod out of main looks like: public static void main(String args[]) { try { myMethod(new Runnable(){ public void run() { //do something...; }}); } catch (Throwable t) { } } So, to supply parameter to myMethod I need to instantiate object of (in this case anonymous) class implementing Runnable. My question is: is it necessary to use Runnable in this example? Can I use any different interface? I mean I can create new interface with single method i.e. interface MyInterface{ void doThis(); } then change look of myMethod: void myMethod(MyInterface myObject){ myObject.doThis(); } And of course client too: public static void main(String args[]) { try { myMethod(new MyInterface (){ public void doThis() { //do something...; }}); } catch (Throwable t) { } } Or maybe something is about Runnable?!

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• VS 2010 / Resharper 5 Mouse Behavior

  - by Berryl

  After upgrading to the above configuration I notice that 1) CTRL-Click on a type highlights the type but doesn't take me to the declaration, 2) Clicking on some closure (ie, like a method) toggles whether it's expanded or collapsed. Since these are both mouse related tasks I figure there is some setting in either VS or R# that I need to change, but I sure can't figure out what it is. Anybody know? Cheers, Berryl PS - there is an option in R# to ctrl-click to the type but I have that checked and it still does not work.

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• Forcing a method to be non-transactional in JPA (Eclipselink)

  - by rhinds

  Hi, I am developing an application using Eclipselink and as part of the app I need to be able to manipulate some of the objects which involves changing data without it being persisted to the database (i merging/changing objects for some batch generation processes). I am reluctant to change the data in the Entity objects, as there is a risk that even though i have not marked the methods as @Transactional, this method could in the future be inadvertantly called from within a transactional method and these changes could be persisted. So my question is, is there anyway to get around this? Such as force a method to always be non-transactional regardless; terminate any transactionality as soon as the method is started; etc. I know there is a .detach() method that can detach the objects from the Entity Manager, however, there are many objects and this seems like a potentially error prone fail-safe on my code.

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• How can I know if a file has been changed in .NET C#?

  - by Anthony D

  I have an application that requires a secure way to store its configuration. There are users that can change the configuration. I need some sort of signature scheme where I can verify that the config file has not changed with out a valid user. I had thought about using RSA, where the private key is encrypted with the users password, and the public key is used to sign the config. However there is nothing to prevent someone from changing the user file and adding their own public key, thus circumventing my security. Any ideas?

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• Rsspnse.redirect will not redirect on Internet explorer

  - by Amit

  Hi, I am using Response.Redirect("someurl",true); in the page_preInit event to redirect all the requests that come to a page. It works fine on Firexox, but if i access the page from internet explorer 7/8, it says page can not be found and will not redirect to new URL. Any idea why this happens?? Update: I tried giving a radom URL in the redirect such as google.com and it works fine. Actually the URL I am trying to redirect is not accessible on my machine, it is on another VPN. I guess IE will not change the URL on the addressbar if it can not access the URL. Firefox on the other hand changes the address on the address bar.

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• How do I take the advantage of the variable column key/value structure of Cassandra

  - by icejade

  If I have to predefine all the columns, how do I take the advantage of the variable column key/value structure of cassandra? If I use update table command, it will insert null for all the rows which don't have that column. This is same as relational DB. For example, for contact column family, I have name, phone, email. I have 100 contacts have all 3 field. Then number 101 contact has skype id which I want to add. If I use insert statement, it won't let me add skypeid since it's not defined in the CF. So I have to run alter statement to change the CF, then all the first 100 contacts will have a null field for each of them.

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• Changing background image to a button

  - by Alpan67

  I am trying to change the backgound-image of a button but it doesn't work as I thought !! the CSS is OK and it is as follows : ITA{ float:right; margin : 5px 85px; width:40px; height:40px; background : #FFFFFF url("../ITA_off.png") center center no-repeat; border:0; } my javascript function in the "HEAD" is function cambiaBandiera() { test=document.getElementById("ITA"); test.backgroundimage="ITA_on.png"; } and the button is as follows input type="button" id="ITA" onClick="cambiaBandiera()" What's wrong ? Please HELP ! Thanx in advance Alex

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• selector for button not working

  - by user1662334

  I want to change the background of the button when the button is unclickable.I have used selector for that but it is not working in the case when the button remains unclickable. This is the selector file: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_enabled="false" android:drawable="@drawable/button_lightgrey" /> <item android:state_pressed="true" android:state_enabled="true" android:drawable="@drawable/button_blue"/> <item android:state_focused="true" android:drawable="@drawable/button_darkgreen" /> <item android:drawable="@drawable/button_lightgreen" /> </selector> This is the button where i am using this selector file: <Button android:id="@+id/PrevButton" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_centerInParent="true" android:layout_marginLeft="5.0dip" android:layout_weight="1.0" android:background="@drawable/ibtn" android:onClick="onPrevButtonClick" android:text="Prev" /> Please help me.All other functions are working in the selector file but only the unclickable button case is not working.Thanks

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• Reliably converting C preprocessor macros to python code

  - by manual-manuel

  Hi, I have a bunch of C macros the operation of which I need to simulate in python. I saw some pointers to pygccxml or ctypeslib etc. Are these the ways to go ? Or is there something out there that is better ? The C macros if and when they change, I would like the python implementation to be auto generated rather than having to make manual modifications. Hence the question. <my_c_header.h> /* #defines type 1 */ #ifdef OS #define NUM_FLAGS (uint16_t)(3) #define NUM_BITS (uint16_t)(8) #else #define NUM_FLAGS (uint16_t)(6) #define NUM_BITS (uint16_t)(16) #endif #define MAKE_SUB_FLAGS (uint16_t)((1<<NUMFLAGS) -1) #define MAKE_TOTAL_FLAGS(x) (uint16_t)((x & MAKE_SUB_FLAGS) >> NUM_BITS) /* #defines type 2 */ #ifdef OS #DO_SOMETHING(X) os_specifc_process(x) #else #DO_SOMETHING(x) #endif /* #defines type 3 */ enum { CASE0, CASE1, CASE2 } #define MY_CASE_0 ((uint16_t)CASE0) #define MY_CASE_1 ((uint16_t)CASE1) #define MY_CASE_2 ((uint16_t)CASE2) #define /*End of file <my_c_header.h> */ Thanks M

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• Drop Down Box (select) set URL on postback?

  - by jamone

  I have a page with a ASP.NET DropDownBox control (HTML select) that's populated with some dynamic record values. When the user selects a record the entire contents of the page is updated to reflect the selection. If a user clicks a link and leaves the page and tries to go back, it pulls up the default unselected list, and they have to reselect it again. How would be the best way to retain their selection? I currently have the page set so if the url contains PageName.aspx?recordID=5 it will select the correct dropDown option. However I'm not sure how to change the URL's query string based on the selection.

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• Constantly changing frameworks/APIs - how do we keep up?

  - by Jamie Chapman

  This question isn't really for any specific technology but more of general developer question. We all know from experience that things change. Frameworks evolve, new features are added and stuff gets removed. For example, how might a product using version 1.0 of the "ABC" framework adapt when version 2.0 comes along (ABC could be .NET, Java, Cocoa, or whatever you want)? One solution might be to make the frameworks backward compatible; so that code written for 1.0 will still work in version 2.0 of the framework. Another might be to selectively target only version 1.0 of the framework, but this might leave many fancy new features unused (many .NET 2.0 apps seem to do this) Any thoughts on what we as developers should do as best practice to keep our technologies up to date, whilst not breaking our applications?

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• How to rename the original file before sending it to user

  - by Manish Jangir

  Actually I have some download link on my website something like "http://www.example.com/somesong.mp3". Now when user click on this link they get somesong.mp3 but I want to change it before they download. I found many scripts that made it possible but didn't get exact right script. Because I want that when the user clicks on download link the file downloading should be started just after the click with the new file name as I want to use. But in all the scripts which I downloaded, first the php processing starts for a few minute (I think it depends on the file size) and then rename it. Is there a way to direct force the file in header with new file name. Thanks.

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• MySQL Throws NullReferenceException in Finalize... How are you coping with this?

  - by Cyril Gupta

  I am using MySQL with the .Net connector on 64 bit Windows. For some reason Mysql is throwing a NullReferenceException in Finalize. This is the problem here and it seems that its due to a bug described here. This bug was reported in 6.22, but I am getting the issue with 6.23 too so apparently it is not fixed. I am using MySQL both with the helper classes, and by instantiating the connection and the Mysqlcommand object. Does anybody have any idea what part of my code do I need to change to fix this issue? Cause even though this is a bug in Mysql this is not universal because I am not getting the problem in my other projects. MySQL bug report has no details on how to reproduce it either. Any suggestions?

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• how to install the IIS in windows 7 ?

  - by prateeksaluja20

  Hello Experts, I have tried to install IIS in My local machine in windows 7.My purpose is to install the IIS & change its Seesion timeout property bcoz I want to increase the Session time out Period.so I went to Control Panel-All Control Panel Items-Programs and Features then clicked Windows features on & off. after that clicked on Internet Information Service then Web Management Tool then IIS Management Console then pressed ok. It installed but when i went to see in Inetpub\wwwroot I got nothing.when i went to see "http:\localhost\" result shown blank page. i tried to search in Google but still i Don't get the answer.so plz help me shortout this problem. Thanx.

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• Using Remote Web Server to Initialize iPhone App

  - by Chris_K

  My iPhone app relies on a vendor's XML feed to provide data. But that feed is not locked down. The vendor could change the format of the XML at any time, although so far they've promised not to. Since I might want to tell my app to use a different URL for its data source, I'd like to set up a single "Command Central" Web page, on my own server, to direct the app to the correct data source. In other words, each time my app starts, in the background and unseen by the user, it would visit "http://www.myserver.com/iphoneapp_data_sources.xml" to retrieve the URL for retrieving data from my vendor. That way, if my vendor suddenly changes the exact URL or the XML feed that the app needs, I can update that Web page and ensure that all installations of the app are using the correct XML feed. Does anyone have any advice or examples showing this kind of approach? It seems as if this must be a common problem, but so far I haven't found a well-established design pattern that fits it.

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