microsoft mshtml - Page 601

Single logical SQL Server possible from multiple physical servers?

- by TuffyIsHere

Hi, With Microsoft SQL Server 2005, is it possible to combine the processing power of multiple physical servers into a single logical sql server? Is it possible on SQL Server 2008? I'm thinking, if the database files were located on a SAN and somehow one of the sql servers acted as a kind of master, then processing could be spread out over multiple physical servers, for instance even allowing simultaneous updates where there was no overlap, and in the case of read-only queries on unlocked tables no limit. We have an application that is limited by the speed of our sql server, and probably stuck with server 2005 for now. Is the only option to get a single more powerful physical server? Sorry I'm not an expert, I'm not sure if the question is a stupid one. TIA

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Unable to sign an imported msi.dll assembly using tlbimp

- by BigMoose

This seems so trivial, yet I can't get it to work.. I have an msi.dll wrapper (named Interop.WindowsInstaller.dll) which I need to sign. The way to do it is by signing it upon import (this specific case is even documented in MSDN: http://msdn.microsoft.com/en-us/library/zec56a0w.aspx). BUT - no matter how I do it (w/ or w/o a keyfile, w/ or w/o adding "/delaysign"), the generated assemly's size is always 36,864 bytes and when viewing the DLL's properties there is no "Digital Signatures" tab (needless to say - the DLL is NOT signed). What am I missing here?? (... HELP!...)

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Is Classic ADO still viable for a mixed managed/unmanaged App?

- by Andy Dent

We have a complex architecture with much logic in unmanaged code that needs database access. Currently this is via ODBC drivers and MFC classes and we're considering the issues of migrating our abstraction layer to use ADO or ADO.Net. In the latter case we'd have to be pushing database logic back up into the .Net layer. I'm trying to decide if the pain of invoking the database via .Net callbacks is offset by the improvements in ADO.Net. The Wikipedia comparison was interesting although I'm not sure I believe all the points in the comparison table (eg: does ADO.Net always use XML to pass data?). A 2005 comparison shows ADO.Net performing dramatically faster. Microsoft's guide to ADO.Net for ADO programmers suggests we will gain much from going to ADO.Net especially the way that data is available in native (.Net) types rather than solely through OLEAutomation's Variant.

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isReachable in Java doesn't appear to be working quite the way it's supposed to

- by Rayne

I'm using Clojure, but I can read Java, so this isn't a Clojure specific question. This doesn't even seem to be working from Java. I'm trying to implement a bit of a 'ping' function using isReachable. The code I'm using is this: (.isReachable (java.net.InetAddress/getByName "www.microsoft.com") 5000) Translated to Java by a good friend of mine: public class NetTest { public static void main (String[] args) throws Exception{ String host = "acidrayne.net"; InetAddress a = InetAddress.getByName(host); System.out.println(a.isReachable(10000)); } } Both of these return false. I suppose I must be doin' it wrong, but Google research is telling me differently. I'm confuzzled!

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MS SQL Server Dates Excel

- by KillerSnail

I have data this is linked from SQL Server into an excel document. The column format on the SQL Server is datetime2. When I get the data via an ODBC connection it comes across as a string? I tried using CAST(column AS DATE ) but that didn't work. I tried reformatting via CONVERT(VARCHAR(10), column, 103) as well but that didn't work. I tried retrieving the data via Microsoft query as well but that didn't work. At the moment I am using VBA code like: While (ActiveCell.Value <> "") ActiveCell.Value = DATEVALUE(ActiveCell.Value) ActiveCell.Offset(1,0).Activate Wend and looping through each column that needs this treatment but 100000 rows in multiple columns takes forever to loop through. Are there any alternatives?

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C#, MEF - Sign trusted plugins for abuse reduction

- by Marks

Hi there. I have a program that is extendable by plugins using the Microsoft Extensibility Framework. But i dont want untrusted sources to give out plugins that may be insecure. So i want to sign the plugins (maybe with Visual Studio's built in signing) and check if the plugins are trustworthy at program start. I didn't find a way to check DLL signing from inside C#. And also there is the problem, that I load the plugins with a DirectoryCatalog. There is no way to tell, which plugin is from which file. Anyone knows a way to do this? Thanks for any help, Marks

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Pros and Cons of Proprietary Software

- by Jon Purdy

Proprietary software is about as good as open-source software. There are so many problems with proprietary technologies, however, that I'm beginning to think it's best to avoid them: The software will only be maintained as long as the company exists (and profits). The level of security of the application is as unknowable as the source code. Alterations and derivative works, however necessary and beneficial, are disallowed. I simply don't see any point in even learning to use such systems as those created by Microsoft and Apple. Of course I don't pretend that ignorance is the superior option: one has to have a certain working knowledge simply because of the ubiquity of these things. I just don't see any reason why, as an independent developer, I should ever consider it a remotely good idea to actually use them. So that's the question, or discussion topic, or what have you: In what ways do developers benefit at all from using closed-source development software?

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Why can I not send more than one request?

- by Doug

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Programatically opening an xml file in MS Word

- by Dan Revell

I'm opening an xml file in Microsoft Word 2007 using C#. I'm using an xsl file to define the layout which worked up to the point that I needed to include an image. I used the typical src html tag and the image displays when the xml is viewed in ie but not when it's opened in Word. I get the image place holder so I can only assume Word simply can't find the image. It's sitting next to both the xml file and xsl file but that doesn't make any difference. To open the document I'm passing the filenames for both the xml and xsl. I would imagine that as the src is in the xsl it would just look relative to one of these files. Any suggestions would be much appreciated. [EDIT] Apologies I lost track of this one. I fixed it in the end. I'll check what my solution was tomorrow and update this.

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Parser Error Debugging VS2008

- by maatthias

When I create new VS2008 asp.net application it builds fine. But when I start debugging I get below error in browser. I've rebuilt the app. The Inherits clause of the markup page matches the class in the code-behind C#. Any clues? Server Error in '/' Application. Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'WebApplication3._Default'. Source Error: Line 1: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication3._Default" % Line 2: Line 3: Source File: /Default.aspx Line: 1 Version Information: Microsoft .NET Framework Version:2.0.50727.4952; ASP.NET Version:2.0.50727.4927

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SQL Count unique objects defined by parameters

- by Eduardo

I have a table with: id | parameter 1 | A 1 | B 2 | A 3 | A 3 | B That represent objects defined with the values as: 1 -> A,B 2 -> A 3 -> A,B I want to count the number of objects with different parameters using a SQL query, so in this case it would be 2 unique objects as 1 and 3 have the same parameters. The database is a Microsoft SQL Server 2000. But I do not mind knowing the solution for other databases.

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How can I resolve naming conflict in given precompiled libraries?

- by asm

I'm linking two different libraries that have functions with exactly same name (it's opengl32.lib and libgles_cm.lib - OpenGL ES emulation under Win32 platform), and I want to be able to specify, which version I'm calling. I'm porting a game to OpenGL ES, and what I want to achieve, is a split-screen rendering, where left side is an OpenGL version, and right side is a ES version. To produce the same result, they will recieve slightly different calls, and I'll be able to visually compare them, effectively finding visual artifacts. It worked perfectly with OpenGL/DirectX at the same window, but now the problem is that both versions imports the functions with the same name, like glDrawArrays, and only one version is imported. Unfortunately, I don't have sources of any of that libraries. Is there a way to... I dont' know, wrap one library into additional namespace before linking (with calls like ES::glDrawArrays), somehow rename some of functions or do anything else? I'm using microsoft compiler now, but if there will be solution with another one (GCC/ICC), I'll switch to it.

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Should I dive into ASP.NET MVC or start with ASP.NET Webforms?

- by Sahat

I plan to pick up Silverlight in the future. Possibility of going into Microsoft WPF. Currently learning Objective-C 2.0 w/ Cocoa. I already know Pros and Cons of ASP.NET MVC vs ASP.NET Webforms. What I want to know is what would be more "efficient" for me to learn given the circumstances above? By efficient I mean learning one design pattern once and then re-using it. Objective-C I believe uses MVC approach? What about Silverlight? WPF? So what do you think? Also as a side question is it true that ASP.NET Webforms is often used by freelancers/small companies and ASP.NET MVC in large enterprises?

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Install Python 2.6 without using installer on Win32

- by prosseek

I need to run a python script on a machine that doesn't have python installed. What I did was as follows. Copy python.exe, python26.dll, msvcr90.dll and Microsoft.VC90.CRT.manifest zip all the directory in LIBs directory as the python26.zip copy all the necessary dll/pyd file inside the DLL directory. It seems to work, but when I change the python26.zip to the other name such as pythonlib.zip. It cannot find the python library anymore. Q1 : What's the magic behind the python26.zip name? The python automatically finds a library inside a python26.zip but not with different name? Q2 : If I have python26.zip at the same directory where python.exe/python26.dll is, I don't need to add path sys.path.append(THE PATH TO python26.zip). Is it correct?

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silverlight and windows workflow foundation

- by wissem

private void btnUpdate_Click(object sender, RoutedEventArgs e) { xxxxxxx.Workflow1_WebServiceSoapClient zer = new xxxxx.Workflow1_WebServiceSoapClient(); zer.demanderSubmitReportCompleted += new EventHandler<xxxxxxxxxxxxxxx.demanderSubmitReportCompletedEventArgs>(service2); zer.demanderSubmitReportAsync("zzz", 20000); } public void service2(object sender, xxxxx.demanderSubmitReportCompletedEventArgs e) { string a = e.Result; } I'm trying to call a windows workflow foundation published as a web service from a Silverlight project. When I call it from a console application it works fine because I can add a web reference then I just make an instance of that webservice then I invoke the method I want. The problem is in the silverlight project cause i can just add a service reference so I find myself working with soap stuff that doesn't work at all, and here is the code error: here is the code:i change it a litle bit in english Error in exécution Microsoft JScript: Unhandled Error in Silverlight Application exception happened in the operation, résult not valide. Consult InnerException for more information. in System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary() in AEDSilverlightIntegrated.ServiceReference2.demanderSubmitReportCompletedEventArgs.get_Result() in AEDSilverlightIntegrated.SilverEntryAedHeaderNew.mmm_demanderSubmitReportCompleted(Object sender, demanderSubmitReportCompletedEventArgs e) in AEDSilverlightIntegrated.ServiceReference2.Workflow1_WebServiceSoapClient.OndemanderSubmitReportCompleted(Object state)

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Nested for_each with lambda not possible?

- by Ela782

The following code does not compile in VS2012, it gives error C2064: term does not evaluate to a function taking 1 arguments on the line of the second for_each (line 4 below). vector<string> v1; for_each(begin(v1), end(v1), [](string s1) { vector<string> v2; for_each(begin(v2), end(v2), [](string s2) { cout << "..."; }); }); I found some related stuff like http://connect.microsoft.com/VisualStudio/feedback/details/560907/capturing-variables-in-nested-lambdas which shows a bug (they are doing something different) but on the other hand that shows that what I print above should be possible. What's wrong with the above code?

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Drag and Drop ListBox for WPF

- by drasto

I'm looking for just a simple ListBox with build-in Drag & Drop. I think that Silverlite 4 Toolkit has something like that. The BoxList should be able to: reorder by draging & droping items drag item from one BoxList to another display preview (ghost version) of dragged item show drop location (like a line between items where the dragged will be inserted) I hope there is some solution from microsoft (in toolkit for example), but if not I all be happy with any working solution. For example I wander what control was used in DataGrid column headers reordering (by draging and droping them) implementation. Thank you for any suggestions

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C++ USB Programming

- by JB_SO

Hi, I am new to hardware programming(especially USB) so please bear with me and my questions. I am using C++ and I need to send/receive some data (a byte array) to/from a USB port on a microprocessor board. Now, I have done some serial port programming before and I know that for a serial port you have to open a port, setup, perform i/o and finally close the port. I am guessing to use a USB port, it is not as simple as what I mentioned above. I do know that I want to use Microsoft standard drivers and implement standard Windows IO commands to accomplish this, since I believe there are no drivers for the microprocessor board for me to interact with. If somebody can point me in the right direction as to the steps needed to "talk" to a USB port (open, setup, i/o) via standard Windows IO commands, I would truly and greatly appreciate it. Thanks you so much!!

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I would like to learn C++, what is the first step ?

- by Cesar

My actual experience comes from PHP and Delphi(Borland) and recently also from Obj-C (iPhone sdk). In the past I also used Java, Python, VB 6 and some other scripting language. I would like to learn C++ because i need a standard tool for write compiled applications with good performance but i have no idea about witch environment i have to choose (Ex: Borland, Microsoft, Eclipse+MinGW, ...). Based those parameters: Most useful more opensource project or work requests Most standard not a proprietary versions Biggest community documentation, manuals, tutorials, forums... Better IDE add-ons, highlight, debug, cross platform, autocomplete... Easy setup A simple setup, to focus on learning the basics Actually I'm on OSX but I can use a VM if needed. Advices about tutorial or books are welcome. I hope it's not too generic as question.

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SQL Compact Edition 3.5 SP 1 - LockTimeOutException - how to debug?

- by Bob King

Intermittently in our app, we encounter LockTimeoutExceptions being throw from SQL CE. We've recently upgraded to 3.5 SP 1, and a number of them seem to have gone away, but we still do see them occasionally. I'm certain it's a bug in our code (which is multi-threaded) but I haven't been able to pin it down precisely. Does anyone have any good techniques for debugging this problem? The exceptions log like this (there's never a stack trace for these exceptions): SQL Server Compact timed out waiting for a lock. The default lock time is 2000ms for devices and 5000ms for desktops. The default lock timeout can be increased in the connection string using the ssce: default lock timeout property. [ Session id = 6,Thread id = 7856,Process id = 10116,Table name = Product,Conflict type = s lock (x blocks),Resource = DDL ] Our database is read-heavy, but does seldom writes, and I think I've got everything protected where it needs to be. EDIT: SQL CE already automatically uses NOLOCK http://msdn.microsoft.com/en-us/library/ms172398(sql.90).aspx

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Ways to make your WCF services compatible with non-.NET consumers

- by Mayo

I'm working on adding a WCF services layer to my existing .NET application. This layer will be hosted in IIS and will be consumed by a variety of UIs, at least one of which will not use Microsoft technologies. I can make a Web service in WCF that is consumed by my .NET application. However, I'm concerned about things that work in the .NET world but not with other technologies. For example, simply throwing an exception from my WCF service works fine in .NET. But according to this article, one should approach exception handling with fault contracts to ensure compatibility with non-.NET consumers. The author labels this lack of foresight as The Fallacy of the .NET-Only World. Does anyone have any high level suggestions or links to articles that cover interoperability between WCF and non-.NET consumers? I realize I'm potentially working against the YAGNI principle. I'm only really looking to avoid things that will be incredibly difficult to overcome later when the developers of the non-.NET consumer report problems to me.

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Excel Worksheet assignment in VB.Net doesn't compile

- by Brian Hooper

I'm converting a VB6 application into VB.Net and having trouble with the basics. I start off with:- Dim xl As Excel.Application Dim xlsheet As Excel.Worksheet Dim xlwbook As Excel.Workbook xl = New Excel.Application xlwbook = xl.Workbooks.Open(my_data.file_name) xlsheet = xlwbook.Sheets(1) but the last line doesn't compile; it reports Option Strict On disallows implicit conversion from 'Object' to 'Microsoft.Office.Interop.Excel.Worksheet' I can make this go away by replacing the line with xlsheet = CType(xlwbook.Sheets(1), Excel.Worksheet) but that does't look like the right thing to do to me. If the assignment is correct, I would have thought the object should naturally have the correct type. So: does anyone know what the correct thing I should be doing here?

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making ajax request to another server

- by santhosh

Hi, I had a ajax sample code from W3Schools, where If i request ajax call to remote server the request getting fails. function loadXMLDoc() { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("myDiv").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","http://www.google.com",true); xmlhttp.send(); } How to solve this..?

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How can I detect when the .NET Framework feature is "turned off" in Windows 7 / Vista?

- by John Myczek

My application requires the .NET Framework version 3.5. I recently ran into a customer that had the .NET Framework installed but turned off on Windows Vista (also applies to Windows 7). In this case, my installer (InstallShield 2009) does not prompt the user to install the Framework (because it is already installed) and when my application runs it crashes immediately. I tried another .NET application and it also crashes immediately. Is there any way to detect this situation and handle it more gracefully? Just detecting this during install is not ideal since the .NET Framework can be turned off at any time. Ideally, the application would be able to check and display a friendly message to the user telling them they need to turn on the .NET Framework. EDIT: "Turning off" the .NET Framework in Windows Vista or Windows 7 is not the same as uninstalling it. The Framework can be simply turned back on without reinstalling: http://windows.microsoft.com/en-US/windows-vista/Turn-Windows-features-on-or-off

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loading Data in VBA from a text file

- by omegayen

I am not very familiar with VBA but need to use it for a new software program I am using (not Microsoft related) I have a text file that has columns of data I would like to read into VBA. Specifically the text file has 4 entries per row. Thus I would like to load in the column vectors (N by 1). The text file is separated by a space between each entry. So for example I want to load in column one and save it as array A, then column two and save as array B, then column three and save as array C, and then column four and save as array D. This code snippet found below from http://www.tek-tips.com/faqs.cfm?fid=482 is something I found that can load in text to an array, but I need to adapt it to be able to save the columns as different arrays as specified above... Open "MyFile.txt" For Input As #1 ReDim Txt$(0) Do While Not EOF(1) ReDim Preserve Txt$(UBound(Txt$) + 1) Input #1, Txt$(UBound(Txt$)) Loop Close #1

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